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	<title>Corporate Media Archive &#8211; Schickler Unternehmensberatung aus Hamburg</title>
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		<title>Native Advertising – ein Heimspiel für Publisher</title>
		<link>https://www.schickler.de/2019/12/native-advertising-ein-heimspiel-fuer-publisher/</link>
		
		<dc:creator><![CDATA[Christoph Mayer]]></dc:creator>
		<pubDate>Thu, 12 Dec 2019 15:34:26 +0000</pubDate>
				<category><![CDATA[Buchverlage]]></category>
		<category><![CDATA[Corporate Media]]></category>
		<category><![CDATA[Corporate Publishing]]></category>
		<category><![CDATA[E-Business Unternehmen]]></category>
		<category><![CDATA[EINBLICKE]]></category>
		<category><![CDATA[Fachinformationsverlage]]></category>
		<category><![CDATA[TV- und Radiosender]]></category>
		<category><![CDATA[Wachstumsstrategie]]></category>
		<category><![CDATA[Zeitschriftenverlage]]></category>
		<category><![CDATA[Zeitungsverlage]]></category>
		<category><![CDATA[Fachbeiträge]]></category>
		<guid isPermaLink="false">https://www.schickler.de/?p=3644</guid>

					<description><![CDATA[<p>Native Advertising ist kein Neuling im Werbegeschäft. Stark steigende Umsätze im globalen Markt und neue technische Möglichkeiten zeigen aber, dass das Potenzial des Formats noch lange nicht ausgeschöpft ist. Was muss bei der Kreation beachtet werden? Was sind Wachstumsfaktoren? Was macht die Konkurrenz und wie können Kunden speziell für Native Advertising gewonnen werden? Denken  [...]</p>
<p>Der Beitrag <a href="https://www.schickler.de/2019/12/native-advertising-ein-heimspiel-fuer-publisher/">Native Advertising – ein Heimspiel für Publisher</a> erschien zuerst auf <a href="https://www.schickler.de">Schickler Unternehmensberatung aus Hamburg</a>.</p>
]]></description>
										<content:encoded><![CDATA[<div class="fusion-fullwidth fullwidth-box fusion-builder-row-1 nonhundred-percent-fullwidth non-hundred-percent-height-scrolling" style="--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;" ><div class="fusion-builder-row fusion-row"><div class="fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-one-full fusion-column-first fusion-column-last green-border rounded-border" style="--awb-padding-top:60px;--awb-padding-right:15px;--awb-padding-bottom:50px;--awb-padding-left:15px;--awb-bg-color:#ffffff;--awb-bg-color-hover:#ffffff;--awb-bg-size:cover;--awb-border-color:#e2e2e2;--awb-border-top:1px;--awb-border-right:1px;--awb-border-bottom:1px;--awb-border-left:1px;--awb-border-style:solid;"><div class="fusion-column-wrapper fusion-column-has-shadow fusion-flex-column-wrapper-legacy"><div class="fusion-text fusion-text-1"><p>Native Advertising ist kein Neuling im Werbegeschäft. Stark steigende Umsätze im globalen Markt und neue technische Möglichkeiten zeigen aber, dass das Potenzial des Formats noch lange nicht ausgeschöpft ist.</p>
<p>Was muss bei der Kreation beachtet werden? Was sind Wachstumsfaktoren? Was macht die Konkurrenz und wie können Kunden speziell für Native Advertising gewonnen werden? Denken Sie Native Advertising strategisch weiter, um die gewünschte Performance zu erzielen.</p>
<p>In unserem EINBLICK erfahren Sie, an welchen Stellschrauben Sie drehen können, um den Umsatz im Native Advertising nachhaltig zu steigern.</p>
<p>Interesse geweckt? Dann nehmen Sie unter <a href="mailto:einblick@schickler.de">einblick@schickler.de</a> Kontakt mit unserem Geschäftsführer Hendrik Langen auf, um ein persönliches Exemplar des EINBLICKS zu erhalten (Stichwort &#8222;Native Advertising B2C&#8220;).</p>
</div><div class="fusion-clearfix"></div></div></div></div></div>
<p>Der Beitrag <a href="https://www.schickler.de/2019/12/native-advertising-ein-heimspiel-fuer-publisher/">Native Advertising – ein Heimspiel für Publisher</a> erschien zuerst auf <a href="https://www.schickler.de">Schickler Unternehmensberatung aus Hamburg</a>.</p>
]]></content:encoded>
					
		
		
			</item>
		<item>
		<title>SCHICKLER Media Index: Das geben Unternehmen 2019 für die Medienkanäle TV, Print, Digital &#038; Co aus</title>
		<link>https://www.schickler.de/2019/03/schickler-media-index-das-geben-unternehmen-2019-fuer-die-medienkanaele-tv-print-digital-co-aus/</link>
		
		<dc:creator><![CDATA[SCHICKLER]]></dc:creator>
		<pubDate>Sat, 23 Mar 2019 18:20:44 +0000</pubDate>
				<category><![CDATA[Corporate Media]]></category>
		<category><![CDATA[Corporate Publishing]]></category>
		<category><![CDATA[Digital Fitness]]></category>
		<category><![CDATA[E-Business Unternehmen]]></category>
		<category><![CDATA[Fachinformationsverlage]]></category>
		<category><![CDATA[Marktanalyse]]></category>
		<category><![CDATA[Studien]]></category>
		<category><![CDATA[TV- und Radiosender]]></category>
		<category><![CDATA[Wachstumsstrategie]]></category>
		<category><![CDATA[Zeitschriftenverlage]]></category>
		<category><![CDATA[Zeitungsverlage]]></category>
		<category><![CDATA[Fachbeiträge]]></category>
		<guid isPermaLink="false">https://www.schickler.de/?p=2948</guid>

					<description><![CDATA[<p>Der Werbemarkt wächst weiter – wenn auch etwas schwächer. Das zeigt der SCHICKLER Media Index, eine der umfassendsten Statistiken über den deutschen Werbemarkt. Neben den klassischen Gattungen sind nahezu alle Formen digitaler Werbung enthalten, sowie Messen und Sponsoring. Wir schätzen, dass im Jahr 2018 der Gesamtnettoumsatz um 3,3 Prozent auf fast 47,3 Milliarden Euro  [...]</p>
<p>Der Beitrag <a href="https://www.schickler.de/2019/03/schickler-media-index-das-geben-unternehmen-2019-fuer-die-medienkanaele-tv-print-digital-co-aus/">SCHICKLER Media Index: Das geben Unternehmen 2019 für die Medienkanäle TV, Print, Digital &#038; Co aus</a> erschien zuerst auf <a href="https://www.schickler.de">Schickler Unternehmensberatung aus Hamburg</a>.</p>
]]></description>
										<content:encoded><![CDATA[<div class="fusion-fullwidth fullwidth-box fusion-builder-row-2 nonhundred-percent-fullwidth non-hundred-percent-height-scrolling" style="--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;" ><div class="fusion-builder-row fusion-row"><div class="fusion-layout-column fusion_builder_column fusion-builder-column-1 fusion_builder_column_1_1 1_1 fusion-one-full fusion-column-first fusion-column-last green-border rounded-border" style="--awb-padding-top:60px;--awb-padding-right:15px;--awb-padding-bottom:50px;--awb-padding-left:15px;--awb-bg-color:#ffffff;--awb-bg-color-hover:#ffffff;--awb-bg-size:cover;--awb-border-color:#e2e2e2;--awb-border-top:1px;--awb-border-right:1px;--awb-border-bottom:1px;--awb-border-left:1px;--awb-border-style:solid;"><div class="fusion-column-wrapper fusion-column-has-shadow fusion-flex-column-wrapper-legacy"><div class="fusion-text fusion-text-2"><p>Der Werbemarkt wächst weiter – wenn auch etwas schwächer. Das zeigt der SCHICKLER Media Index, eine der umfassendsten Statistiken über den deutschen Werbemarkt. Neben den klassischen Gattungen sind nahezu alle Formen digitaler Werbung enthalten, sowie Messen und Sponsoring.</p>
<p>Wir schätzen, dass im Jahr 2018 der Gesamtnettoumsatz um 3,3 Prozent auf fast 47,3 Milliarden Euro gestiegen ist. In 2019 hält der Trend der letzten Jahre weiter an, auch wenn das Wachstum etwas schwächer ausfallen dürfte.</p>
<p>Ungebremst ist der Trend, dass Unternehmen ihre Budgets in die direkte Kommunikation zu ihren Kunden erhöhen. Dazu gehören alle Wege des Corporate Publishing, insbesondere die digitalen Kanäle. App-Entwicklung, Corporate Social Media, die Erstellung von Corporate Videos und die Weiterentwicklung von Corporate Websites profitieren davon.</p>
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0:this._point=1,this._line?this._context.lineTo(t,n):this._context.moveTo(t,n);break;case 1:this._point=2;default:this._context.lineTo(t,n)}}};var u_=pc(oc);hc.prototype={areaStart:function(){this._curve.areaStart()},areaEnd:function(){this._curve.areaEnd()},lineStart:function(){this._curve.lineStart()},lineEnd:function(){this._curve.lineEnd()},point:function(t,n){this._curve.point(n*Math.sin(t),n*-Math.cos(t))}};var a_=Array.prototype.slice,c_={draw:function(t,n){var e=Math.sqrt(n/r_);t.moveTo(e,0),t.arc(0,0,e,0,o_)}},s_={draw:function(t,n){var e=Math.sqrt(n/5)/2;t.moveTo(-3*e,-e),t.lineTo(-e,-e),t.lineTo(-e,-3*e),t.lineTo(e,-3*e),t.lineTo(e,-e),t.lineTo(3*e,-e),t.lineTo(3*e,e),t.lineTo(e,e),t.lineTo(e,3*e),t.lineTo(-e,3*e),t.lineTo(-e,e),t.lineTo(-3*e,e),t.closePath()}},f_=Math.sqrt(1/3),l_=2*f_,h_={draw:function(t,n){var e=Math.sqrt(n/l_),r=e*f_;t.moveTo(0,-e),t.lineTo(r,0),t.lineTo(0,e),t.lineTo(-r,0),t.closePath()}},p_=Math.sin(r_/10)/Math.sin(7*r_/10),d_=Math.sin(o_/10)*p_,v_=-Math.cos(o_/10)*p_,g_={draw:function(t,n){var e=Math.sqrt(.8908130915292852*n),r=d_*e,i=v_*e;t.moveTo(0,-e),t.lineTo(r,i);for(var o=1;o<5;++o){var u=o_*o/5,a=Math.cos(u),c=Math.sin(u);t.lineTo(c*e,-a*e),t.lineTo(a*r-c*i,c*r+a*i)}t.closePath()}},__={draw:function(t,n){var e=Math.sqrt(n),r=-e/2;t.rect(r,r,e,e)}},y_=Math.sqrt(3),m_={draw:function(t,n){var e=-Math.sqrt(n/(3*y_));t.moveTo(0,2*e),t.lineTo(-y_*e,-e),t.lineTo(y_*e,-e),t.closePath()}},x_=Math.sqrt(3)/2,b_=1/Math.sqrt(12),w_=3*(b_/2+1),M_={draw:function(t,n){var e=Math.sqrt(n/w_),r=e/2,i=e*b_,o=r,u=e*b_+e,a=-o,c=u;t.moveTo(r,i),t.lineTo(o,u),t.lineTo(a,c),t.lineTo(-.5*r-x_*i,x_*r+-.5*i),t.lineTo(-.5*o-x_*u,x_*o+-.5*u),t.lineTo(-.5*a-x_*c,x_*a+-.5*c),t.lineTo(-.5*r+x_*i,-.5*i-x_*r),t.lineTo(-.5*o+x_*u,-.5*u-x_*o),t.lineTo(-.5*a+x_*c,-.5*c-x_*a),t.closePath()}},T_=[c_,s_,h_,__,g_,m_,M_];kc.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._y0=this._y1=NaN,this._point=0},lineEnd:function(){switch(this._point){case 3:Nc(this,this._x1,this._y1);case 2:this._context.lineTo(this._x1,this._y1)}(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1,this._line?this._context.lineTo(t,n):this._context.moveTo(t,n);break;case 1:this._point=2;break;case 2:this._point=3,this._context.lineTo((5*this._x0+this._x1)/6,(5*this._y0+this._y1)/6);default:Nc(this,t,n)}this._x0=this._x1,this._x1=t,this._y0=this._y1,this._y1=n}},Sc.prototype={areaStart:Tc,areaEnd:Tc,lineStart:function(){this._x0=this._x1=this._x2=this._x3=this._x4=this._y0=this._y1=this._y2=this._y3=this._y4=NaN,this._point=0},lineEnd:function(){switch(this._point){case 1:this._context.moveTo(this._x2,this._y2),this._context.closePath();break;case 2:this._context.moveTo((this._x2+2*this._x3)/3,(this._y2+2*this._y3)/3),this._context.lineTo((this._x3+2*this._x2)/3,(this._y3+2*this._y2)/3),this._context.closePath();break;case 3:this.point(this._x2,this._y2),this.point(this._x3,this._y3),this.point(this._x4,this._y4)}},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1,this._x2=t,this._y2=n;break;case 1:this._point=2,this._x3=t,this._y3=n;break;case 2:this._point=3,this._x4=t,this._y4=n,this._context.moveTo((this._x0+4*this._x1+t)/6,(this._y0+4*this._y1+n)/6);break;default:Nc(this,t,n)}this._x0=this._x1,this._x1=t,this._y0=this._y1,this._y1=n}},Ec.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._y0=this._y1=NaN,this._point=0},lineEnd:function(){(this._line||0!==this._line&&3===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1;break;case 1:this._point=2;break;case 2:this._point=3;var e=(this._x0+4*this._x1+t)/6,r=(this._y0+4*this._y1+n)/6;this._line?this._context.lineTo(e,r):this._context.moveTo(e,r);break;case 3:this._point=4;default:Nc(this,t,n)}this._x0=this._x1,this._x1=t,this._y0=this._y1,this._y1=n}},Ac.prototype={lineStart:function(){this._x=[],this._y=[],this._basis.lineStart()},lineEnd:function(){var t=this._x,n=this._y,e=t.length-1;if(e>0)for(var r,i=t[0],o=n[0],u=t[e]-i,a=n[e]-o,c=-1;++c<=e;)r=c/e,this._basis.point(this._beta*t[c]+(1-this._beta)*(i+r*u),this._beta*n[c]+(1-this._beta)*(o+r*a));this._x=this._y=null,this._basis.lineEnd()},point:function(t,n){this._x.push(+t),this._y.push(+n)}};var N_=function t(n){function e(t){return 1===n?new kc(t):new Ac(t,n)}return e.beta=function(n){return t(+n)},e}(.85);zc.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._x2=this._y0=this._y1=this._y2=NaN,this._point=0},lineEnd:function(){switch(this._point){case 2:this._context.lineTo(this._x2,this._y2);break;case 3:Cc(this,this._x1,this._y1)}(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1,this._line?this._context.lineTo(t,n):this._context.moveTo(t,n);break;case 1:this._point=2,this._x1=t,this._y1=n;break;case 2:this._point=3;default:Cc(this,t,n)}this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var k_=function t(n){function e(t){return new zc(t,n)}return e.tension=function(n){return t(+n)},e}(0);Pc.prototype={areaStart:Tc,areaEnd:Tc,lineStart:function(){this._x0=this._x1=this._x2=this._x3=this._x4=this._x5=this._y0=this._y1=this._y2=this._y3=this._y4=this._y5=NaN,this._point=0},lineEnd:function(){switch(this._point){case 1:this._context.moveTo(this._x3,this._y3),this._context.closePath();break;case 2:this._context.lineTo(this._x3,this._y3),this._context.closePath();break;case 3:this.point(this._x3,this._y3),this.point(this._x4,this._y4),this.point(this._x5,this._y5)}},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1,this._x3=t,this._y3=n;break;case 1:this._point=2,this._context.moveTo(this._x4=t,this._y4=n);break;case 2:this._point=3,this._x5=t,this._y5=n;break;default:Cc(this,t,n)}this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var S_=function t(n){function e(t){return new Pc(t,n)}return e.tension=function(n){return t(+n)},e}(0);Rc.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._x2=this._y0=this._y1=this._y2=NaN,this._point=0},lineEnd:function(){(this._line||0!==this._line&&3===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1;break;case 1:this._point=2;break;case 2:this._point=3,this._line?this._context.lineTo(this._x2,this._y2):this._context.moveTo(this._x2,this._y2);break;case 3:this._point=4;default:Cc(this,t,n)}this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var E_=function t(n){function e(t){return new Rc(t,n)}return e.tension=function(n){return t(+n)},e}(0);qc.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._x2=this._y0=this._y1=this._y2=NaN,this._l01_a=this._l12_a=this._l23_a=this._l01_2a=this._l12_2a=this._l23_2a=this._point=0},lineEnd:function(){switch(this._point){case 2:this._context.lineTo(this._x2,this._y2);break;case 3:this.point(this._x2,this._y2)}(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){if(t=+t,n=+n,this._point){var e=this._x2-t,r=this._y2-n;this._l23_a=Math.sqrt(this._l23_2a=Math.pow(e*e+r*r,this._alpha))}switch(this._point){case 0:this._point=1,this._line?this._context.lineTo(t,n):this._context.moveTo(t,n);break;case 1:this._point=2;break;case 2:this._point=3;default:Lc(this,t,n)}this._l01_a=this._l12_a,this._l12_a=this._l23_a,this._l01_2a=this._l12_2a,this._l12_2a=this._l23_2a,this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var A_=function t(n){function e(t){return n?new qc(t,n):new zc(t,0)}return e.alpha=function(n){return t(+n)},e}(.5);Dc.prototype={areaStart:Tc,areaEnd:Tc,lineStart:function(){this._x0=this._x1=this._x2=this._x3=this._x4=this._x5=this._y0=this._y1=this._y2=this._y3=this._y4=this._y5=NaN,this._l01_a=this._l12_a=this._l23_a=this._l01_2a=this._l12_2a=this._l23_2a=this._point=0},lineEnd:function(){switch(this._point){case 1:this._context.moveTo(this._x3,this._y3),this._context.closePath();break;case 2:this._context.lineTo(this._x3,this._y3),this._context.closePath();break;case 3:this.point(this._x3,this._y3),this.point(this._x4,this._y4),this.point(this._x5,this._y5)}},point:function(t,n){if(t=+t,n=+n,this._point){var e=this._x2-t,r=this._y2-n;this._l23_a=Math.sqrt(this._l23_2a=Math.pow(e*e+r*r,this._alpha))}switch(this._point){case 0:this._point=1,this._x3=t,this._y3=n;break;case 1:this._point=2,this._context.moveTo(this._x4=t,this._y4=n);break;case 2:this._point=3,this._x5=t,this._y5=n;break;default:Lc(this,t,n)}this._l01_a=this._l12_a,this._l12_a=this._l23_a,this._l01_2a=this._l12_2a,this._l12_2a=this._l23_2a,this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var C_=function t(n){function e(t){return n?new Dc(t,n):new Pc(t,0)}return e.alpha=function(n){return 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n?new Uc(t,n):new Rc(t,0)}return e.alpha=function(n){return t(+n)},e}(.5);Oc.prototype={areaStart:Tc,areaEnd:Tc,lineStart:function(){this._point=0},lineEnd:function(){this._point&&this._context.closePath()},point:function(t,n){t=+t,n=+n,this._point?this._context.lineTo(t,n):(this._point=1,this._context.moveTo(t,n))}},Hc.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._y0=this._y1=this._t0=NaN,this._point=0},lineEnd:function(){switch(this._point){case 2:this._context.lineTo(this._x1,this._y1);break;case 3:Bc(this,this._t0,Yc(this,this._t0))}(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){var e=NaN;if(t=+t,n=+n,t!==this._x1||n!==this._y1){switch(this._point){case 0:this._point=1,this._line?this._context.lineTo(t,n):this._context.moveTo(t,n);break;case 1:this._point=2;break;case 2:this._point=3,Bc(this,Yc(this,e=Ic(this,t,n)),e);break;default:Bc(this,this._t0,e=Ic(this,t,n))}this._x0=this._x1,this._x1=t,this._y0=this._y1,this._y1=n,this._t0=e}}},(jc.prototype=Object.create(Hc.prototype)).point=function(t,n){Hc.prototype.point.call(this,n,t)},Xc.prototype={moveTo:function(t,n){this._context.moveTo(n,t)},closePath:function(){this._context.closePath()},lineTo:function(t,n){this._context.lineTo(n,t)},bezierCurveTo:function(t,n,e,r,i,o){this._context.bezierCurveTo(n,t,r,e,o,i)}},Vc.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x=[],this._y=[]},lineEnd:function(){var t=this._x,n=this._y,e=t.length;if(e)if(this._line?this._context.lineTo(t[0],n[0]):this._context.moveTo(t[0],n[0]),2===e)this._context.lineTo(t[1],n[1]);else for(var r=$c(t),i=$c(n),o=0,u=1;u<e;++o,++u)this._context.bezierCurveTo(r[0][o],i[0][o],r[1][o],i[1][o],t[u],n[u]);(this._line||0!==this._line&&1===e)&&this._context.closePath(),this._line=1-this._line,this._x=this._y=null},point:function(t,n){this._x.push(+t),this._y.push(+n)}},Wc.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x=this._y=NaN,this._point=0},lineEnd:function(){0<this._t&&this._t<1&&2===this._point&&this._context.lineTo(this._x,this._y),(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line>=0&&(this._t=1-this._t,this._line=1-this._line)},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1,this._line?this._context.lineTo(t,n):this._context.moveTo(t,n);break;case 1:this._point=2;default:if(this._t<=0)this._context.lineTo(this._x,n),this._context.lineTo(t,n);else{var e=this._x*(1-this._t)+t*this._t;this._context.lineTo(e,this._y),this._context.lineTo(e,n)}}this._x=t,this._y=n}},rs.prototype={constructor:rs,insert:function(t,n){var e,r,i;if(t){if(n.P=t,n.N=t.N,t.N&&(t.N.P=n),t.N=n,t.R){for(t=t.R;t.L;)t=t.L;t.L=n}else t.R=n;e=t}else this._?(t=as(this._),n.P=null,n.N=t,t.P=t.L=n,e=t):(n.P=n.N=null,this._=n,e=null);for(n.L=n.R=null,n.U=e,n.C=!0,t=n;e&&e.C;)e===(r=e.U).L?(i=r.R)&&i.C?(e.C=i.C=!1,r.C=!0,t=r):(t===e.R&&(os(this,e),e=(t=e).U),e.C=!1,r.C=!0,us(this,r)):(i=r.L)&&i.C?(e.C=i.C=!1,r.C=!0,t=r):(t===e.L&&(us(this,e),e=(t=e).U),e.C=!1,r.C=!0,os(this,r)),e=t.U;this._.C=!1},remove:function(t){t.N&&(t.N.P=t.P),t.P&&(t.P.N=t.N),t.N=t.P=null;var n,e,r,i=t.U,o=t.L,u=t.R;if(e=o?u?as(u):o:u,i?i.L===t?i.L=e:i.R=e:this._=e,o&&u?(r=e.C,e.C=t.C,e.L=o,o.U=e,e!==u?(i=e.U,e.U=t.U,t=e.R,i.L=t,e.R=u,u.U=e):(e.U=i,i=e,t=e.R)):(r=t.C,t=e),t&&(t.U=i),!r)if(t&&t.C)t.C=!1;else{do{if(t===this._)break;if(t===i.L){if((n=i.R).C&&(n.C=!1,i.C=!0,os(this,i),n=i.R),n.L&&n.L.C||n.R&&n.R.C){n.R&&n.R.C||(n.L.C=!1,n.C=!0,us(this,n),n=i.R),n.C=i.C,i.C=n.R.C=!1,os(this,i),t=this._;break}}else if((n=i.L).C&&(n.C=!1,i.C=!0,us(this,i),n=i.L),n.L&&n.L.C||n.R&&n.R.C){n.L&&n.L.C||(n.R.C=!1,n.C=!0,os(this,n),n=i.L),n.C=i.C,i.C=n.L.C=!1,us(this,i),t=this._;break}n.C=!0,t=i,i=i.U}while(!t.C);t&&(t.C=!1)}}};var P_,R_,L_,q_,D_,U_=[],O_=[],F_=1e-6,I_=1e-12;Ns.prototype={constructor:Ns,polygons:function(){var t=this.edges;return this.cells.map(function(n){var e=n.halfedges.map(function(e){return ds(n,t[e])});return e.data=n.site.data,e})},triangles:function(){var t=[],n=this.edges;return this.cells.forEach(function(e,r){if(o=(i=e.halfedges).length)for(var i,o,u,a=e.site,c=-1,s=n[i[o-1]],f=s.left===a?s.right:s.left;++c<o;)u=f,f=(s=n[i[c]]).left===a?s.right:s.left,u&&f&&r<u.index&&r<f.index&&Ms(a,u,f)<0&&t.push([a.data,u.data,f.data])}),t},links:function(){return this.edges.filter(function(t){return t.right}).map(function(t){return{source:t.left.data,target:t.right.data}})},find:function(t,n,e){for(var r,i,o=this,u=o._found||0,a=o.cells.length;!(i=o.cells[u]);)if(++u>=a)return null;var c=t-i.site[0],s=n-i.site[1],f=c*c+s*s;do{i=o.cells[r=u],u=null,i.halfedges.forEach(function(e){var r=o.edges[e],a=r.left;if(a!==i.site&&a||(a=r.right)){var c=t-a[0],s=n-a[1],l=c*c+s*s;l<f&&(f=l,u=a.index)}})}while(null!==u);return o._found=r,null==e||f<=e*e?i.site:null}},Ss.prototype={constructor:Ss,scale:function(t){return 1===t?this:new Ss(this.k*t,this.x,this.y)},translate:function(t,n){return 0===t&0===n?this:new Ss(this.k,this.x+this.k*t,this.y+this.k*n)},apply:function(t){return[t[0]*this.k+this.x,t[1]*this.k+this.y]},applyX:function(t){return t*this.k+this.x},applyY:function(t){return t*this.k+this.y},invert:function(t){return[(t[0]-this.x)/this.k,(t[1]-this.y)/this.k]},invertX:function(t){return(t-this.x)/this.k},invertY:function(t){return(t-this.y)/this.k},rescaleX:function(t){return t.copy().domain(t.range().map(this.invertX,this).map(t.invert,t))},rescaleY:function(t){return t.copy().domain(t.range().map(this.invertY,this).map(t.invert,t))},toString:function(){return"translate("+this.x+","+this.y+") scale("+this.k+")"}};var Y_=new Ss(1,0,0);Es.prototype=Ss.prototype,t.version="4.13.0",t.bisect=Os,t.bisectRight=Os,t.bisectLeft=Fs,t.ascending=n,t.bisector=e,t.cross=function(t,n,e){var i,o,u,a,c=t.length,s=n.length,f=new Array(c*s);for(null==e&&(e=r),i=u=0;i<c;++i)for(a=t[i],o=0;o<s;++o,++u)f[u]=e(a,n[o]);return f},t.descending=function(t,n){return n<t?-1:n>t?1:n>=t?0:NaN},t.deviation=u,t.extent=a,t.histogram=function(){function t(t){var i,o,u=t.length,a=new Array(u);for(i=0;i<u;++i)a[i]=n(t[i],i,t);var 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.d2b-breadcrumb:not(:last-child):after{width:0;height:0;border-style:solid;border-color:transparent;border-width:6px 6px 0;border-top-color:inherit;position:absolute;z-index:2;content:\"\";top:100%;left:50%;-webkit-transform:translateX(-50%);transform:translateX(-50%)}.stuff{display:none}.d2b-legend{color:#555;font-size:9pt}.d2b-legend .d2b-legend-item{border:0px solid transparent;padding:2px;padding-left:18px;position:relative;cursor:pointer}.d2b-legend .d2b-legend-item .d2b-legend-icon{position:absolute;top:50%;-webkit-transform:translateY(-50%);transform:translateY(-50%);left:7px;width:12px;height:12px}.d2b-legend .d2b-legend-item .d2b-legend-svg-icon{margin-left:-5px;margin-top:-5px;pointer-events:none}.d2b-legend .d2b-legend-item .d2b-legend-svg-icon path,.d2b-legend .d2b-legend-item .d2b-legend-svg-icon text{font-family:FontAwesome;text-anchor:middle;stroke-width:1px;fill-opacity:0.8}.d2b-legend:not(.d2b-vertical) .d2b-legend-item{display:inline-block}.d2b-legend:not(.d2b-vertical) .d2b-legend-item:not(:last-child){margin-right:10px}.d2b-legend:not(.d2b-vertical) .d2b-legend-icon{margin-top:1.5px}.d2b-chart-frame{height:100%;width:100%;position:relative}.d2b-chart-frame .d2b-breadcrumbs-frame,.d2b-chart-frame .d2b-chart,.d2b-chart-frame .d2b-legend-frame{position:absolute;overflow:auto}.d2b-chart-frame .d2b-breadcrumbs-frame .d2b-breadcrumbs,.d2b-chart-frame .d2b-legend-frame .d2b-breadcrumbs{padding-left:10px;padding-right:2px}.d2b-chart-frame .d2b-breadcrumbs-frame:not(.d2b-vertical),.d2b-chart-frame .d2b-legend-frame:not(.d2b-vertical){overflow-y:hidden}.d2b-chart-frame .d2b-breadcrumbs-frame:not(.d2b-vertical) .d2b-breadcrumbs,.d2b-chart-frame .d2b-breadcrumbs-frame:not(.d2b-vertical) .d2b-legend,.d2b-chart-frame .d2b-breadcrumbs-frame:not(.d2b-vertical) .d2b-legend-item,.d2b-chart-frame .d2b-legend-frame:not(.d2b-vertical) .d2b-breadcrumbs,.d2b-chart-frame .d2b-legend-frame:not(.d2b-vertical) .d2b-legend,.d2b-chart-frame .d2b-legend-frame:not(.d2b-vertical) .d2b-legend-item{white-space:nowrap;overflow-y:hidden}.d2b-chart-frame .d2b-breadcrumbs-frame:not(.d2b-vertical).d2b-legend-frame,.d2b-chart-frame .d2b-legend-frame:not(.d2b-vertical).d2b-legend-frame{height:20px;text-align:center}.d2b-chart-frame .d2b-breadcrumbs-frame:not(.d2b-vertical).d2b-breadcrumbs-frame,.d2b-chart-frame .d2b-legend-frame:not(.d2b-vertical).d2b-breadcrumbs-frame{height:55px}.d2b-chart-frame .d2b-breadcrumbs-frame.d2b-vertical .d2b-breadcrumbs-container,.d2b-chart-frame .d2b-breadcrumbs-frame.d2b-vertical .d2b-legend-container,.d2b-chart-frame .d2b-legend-frame.d2b-vertical .d2b-breadcrumbs-container,.d2b-chart-frame .d2b-legend-frame.d2b-vertical .d2b-legend-container{display:table;height:100%;width:100%}.d2b-chart-frame .d2b-breadcrumbs-frame.d2b-vertical .d2b-breadcrumbs-container .d2b-legend,.d2b-chart-frame .d2b-breadcrumbs-frame.d2b-vertical .d2b-legend-container .d2b-legend,.d2b-chart-frame .d2b-legend-frame.d2b-vertical .d2b-breadcrumbs-container .d2b-legend,.d2b-chart-frame .d2b-legend-frame.d2b-vertical .d2b-legend-container .d2b-legend{display:table-cell;vertical-align:middle}.d2b-chart-frame .d2b-breadcrumbs-frame.d2b-vertical .d2b-breadcrumbs-container .d2b-breadcrumbs,.d2b-chart-frame .d2b-breadcrumbs-frame.d2b-vertical .d2b-legend-container .d2b-breadcrumbs,.d2b-chart-frame .d2b-legend-frame.d2b-vertical .d2b-breadcrumbs-container .d2b-breadcrumbs,.d2b-chart-frame .d2b-legend-frame.d2b-vertical .d2b-legend-container .d2b-breadcrumbs{display:table-cell;vertical-align:top}.d2b-chart-frame .d2b-breadcrumbs-frame.d2b-vertical.d2b-breadcrumbs-frame,.d2b-chart-frame .d2b-legend-frame.d2b-vertical.d2b-breadcrumbs-frame{width:180px}.d2b-chart-frame .d2b-breadcrumbs-frame.d2b-vertical.d2b-legend-frame,.d2b-chart-frame .d2b-legend-frame.d2b-vertical.d2b-legend-frame{width:110px}", undefined);

  var version = "0.5.5";

  function functor(v) {
    return typeof v === 'function' ? v : function () {
      return v;
    };
  }

  // Work around for JavaScripts ||= operator. Only null, undefined, NaN, and false will be construed as falsy.

  function oreq () {
    for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }

    var val = args[0];
    args.forEach(function (a) {
      if (val === null || val === undefined || val === false) val = a;
    });
    return val;
  }

  // Wraps text based on character count and text accessor. This method uses
  // d3's enter/update/exit strategy as to be less destructive on the text content.
  function textWrap (text) {
    var getText = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : function (d) {
      return d.label;
    };
    var getCount = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : Infinity;
    var getAnchor = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 'start';

    getText = functor(getText);
    getCount = functor(getCount);
    getAnchor = functor(getAnchor);

    text.each(function (d, i) {
      var text = d3.select(this),
          words = ('' + getText.call(this, d, i)).split(/\s+/).reverse(),
          word = void 0,
          lines = [],
          line = [words.pop()],
          lineHeight = 1.1,
          count = getCount.call(this, d, i),
          anchor = getAnchor.call(this, d, i),
          x = +text.attr('x'),
          y = +text.attr('y'),
          dy = parseFloat(text.attr('dy')) || 0;

      // clear text if the wrapper is being run for the first time
      if (oreq(text.html(), '').indexOf('tspan') === -1) text.text('');

      word = words.pop();
      while (word) {
        if (line.join(' ').length + word.length > count) {
          lines.push(line);
          line = [];
        }

        line.push(word);
        word = words.pop();
      }
      lines.push(line);

      var tspan = text.selectAll('tspan').data(lines),
          height = (lines.length - 1) * lineHeight,
          offset = anchor === 'end' ? height : anchor === 'middle' ? height / 2 : 0;

      tspan.merge(tspan.enter().append('tspan')).text(function (d) {
        return d.join(' ');
      }).attr('x', x).attr('y', y).attr('dy', function (d, i) {
        return dy + i * lineHeight - offset + 'em';
      });
    });
  }

  // Wrap text based on pixel length.
  // This isn't used very frequently because it causes problems with event
  // rebinding namely double click events.
  function textWrapPX (text) {
    var width = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : Infinity;

    text.each(function () {
      var text = d3.select(this),
          words = text.text().split(/\s+/).reverse(),
          word = void 0,
          line = [],
          lineNumber = 0,
          lineHeight = 1.1,
          // ems
      y = parseFloat(text.attr('y')) || 0,
          dy = parseFloat(text.attr('dy')) || 0,
          tspan = text.text(null).append('tspan').attr('x', 0).attr('y', y).attr('dy', dy + 'em');

      word = words.pop();
      while (word) {
        line.push(word);
        tspan.text(line.join(' '));
        if (tspan.node().getComputedTextLength() > width) {
          line.pop();
          tspan.text(line.join(' '));
          line = [word];
          tspan = text.append('tspan').attr('x', 0).attr('y', y).attr('dy', ++lineNumber * lineHeight + dy + 'em').text(word);
        }
        word = words.pop();
      }
    });
  }

  function tweenArc (context, arc) {
    function getProperties(d) {
      return {
        innerRadius: arc.innerRadius()(d),
        outerRadius: arc.outerRadius()(d),
        startAngle: arc.startAngle()(d),
        endAngle: arc.endAngle()(d)
      };
    }

    // if context is not a transition just render the arc and update current
    if (!context.selection) {
      return context.attr('d', function (d) {
        this.current = getProperties(d);
        return arc(d);
      });
    }

    // if context is a transition tween the 'd' attribute
    context.attrTween('d', function (d) {
      var _this = this;

      // omit data attribute incase of a pie chart with nested associations
      d = getProperties(d);
      this.current = this.current || d;
      var i = d3.interpolate(this.current, d);
      return function (t) {
        _this.current = i(t);
        return arc(_this.current);
      };
    });
  }

  function numberize (x) {
    var def = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;

    if (isNaN(x) || x === null) return def;
    return x;
  }

  function tweenNumber (context) {
    var number = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : function (d) {
      return d;
    };
    var format = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : function (d) {
      return d;
    };

    number = functor(number);

    // if context is not a transition just render the text and update current
    if (!context.selection) {
      return context.text(function (d, i) {
        this.current = numberize(number.call(this, d, i));
        return format(this.current);
      });
    }

    context.tween('text', function (d, i) {
      var _this = this;

      var val = numberize(number.call(this, d, i));
      this.current = numberize(this.current, val);
      var interpolate = d3.interpolate(this.current, val);
      return function (t) {
        _this.textContent = format(_this.current = interpolate(t));
      };
    });
  }

  function tweenCentroid (context, arc) {
    var rotate = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : function (d) {
      return d.rotate;
    };

    rotate = functor(rotate);

    // get specific set of properties in case of recursive
    function getProperties(d) {
      return {
        innerRadius: arc.innerRadius()(d),
        outerRadius: arc.outerRadius()(d),
        startAngle: arc.startAngle()(d),
        endAngle: arc.endAngle()(d),
        rotate: rotate(d) || 0
      };
    }

    // if context is not a transition just render the centroid and update current
    if (!context.selection) {
      return context.attr('transform', function (d) {
        this.current = getProperties(d);
        return 'translate(' + arc.centroid(this.current) + ')' + ('rotate(' + this.current.rotate + ')');
      });
    }

    context.attrTween('transform', function (d) {
      var _this = this;

      d = getProperties(d);
      this.current = this.current || d;
      var i = d3.interpolate(this.current, d);
      return function (t) {
        _this.current = i(t);
        return 'translate(' + arc.centroid(_this.current) + ') ' + ('rotate(' + (_this.current.rotate || 0) + ')');
      };
    });
  }

  /**
    * d2b.modelBase() returns a d2b base model.
    *
    * model.interface() will return a base interface with various built in
    * getter/setter methods.
    * model.values() will return the values set through the interface.
    * @param {function} base - function that will act as the model interface
    * @param {object} $$ - attributes set by interactive with the base interface
    * @return {Object} model - object with properties and methods
    */

  function base() {
    var _base = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

    var _this = this;

    var $$ = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    var protect = arguments[2];


    // Define an emitter updater that will fire events around the base updater
    // if (typeof base === 'function') {
    //   base.emitter = function (context) {
    //     if (context.dispatch) context.dispatch('beforeApply', {bubbles: true});
    //     base.apply(this, arguments);
    //     if (context.dispatch) context.dispatch('applied', {bubbles: true});
    //   };
    // }

    var propFn = function propFn(prop, cb) {
      return function (_) {
        if (!arguments.length) return $$[prop];
        var old = $$[prop];
        $$[prop] = _;
        if (cb) cb(_, old);
        return _base;
      };
    };

    var propFnGet = function propFnGet(prop) {
      return function () {
        return $$[prop];
      };
    };

    var propFnFunctor = function propFnFunctor(prop, cb) {
      return function (_) {
        if (!arguments.length) return $$[prop];
        var old = $$[prop];
        $$[prop] = functor(_);
        if (cb) cb($$[prop], old);
        return _base;
      };
    };

    var scaleFnFunctor = function scaleFnFunctor(prop, cb) {
      return function (_) {
        if (!arguments.length) return $$[prop];
        var old = $$[prop];
        if (_ && _.domain) $$[prop] = function () {
          return _;
        };else $$[prop] = functor(_);
        if (cb) cb($$[prop], old);
        return _base;
      };
    };

    /* Base Model */
    var model = {
      base: function base() {
        return _base;
      },
      values: function values() {
        return $$;
      },
      /**
        * model.removeProp removes the specified property
        * @param {Number} prop    - property key
        * @return {Object} model  - returns model to allow for method chaining
        */
      removeProp: function removeProp(prop) {
        if (protect.indexOf(prop) !== -1) {
          // console.log(`Cannot remove ${prop} property or value`);
          return model;
        }

        $$[prop] = null;
        _base[prop] = null;
        return model;
      },
      /**
        * model.addProp allows new properties to be added to the model and base
        * interface. If the property is already defined an error will be raised.
        * @param {Number} prop    - property key
        * @param {Number} value   - default value to set
        * @param {Number} fn      - function as new prop getter/setter
        * @param {Number} cb      - callback function after prop is set
        * @return {Object} model  - returns model to allow for method chaining
        */
      addProp: function addProp(prop) {
        var value = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;
        var fn = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : propFn(prop);
        var cb = arguments[3];

        if ($$[prop] || _base[prop]) {
          // console.error(`${prop} property is already defined.`);
          return model;
        }
        // allow for null:default 'fn' in order to access callback
        fn = fn || propFn(prop, cb);

        fn(value);

        _base[prop] = fn;

        return model;
      },
      /**
        * model.addPropGet is similar to addProp except it doesn't allow for the
        * property to be reset through the API.
        * @param {Number} prop    - property key
        * @param {Number} value   - default value to set
        * @param {Number} fn      - function as new prop getter
        * @return {Object} model  - returns model to allow for method chaining
        */
      addPropGet: function addPropGet(prop) {
        var value = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;
        var fn = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : propFnGet(prop);

        if ($$[prop] || _base[prop]) {
          // console.error(`${prop} property is already defined.`);
          return model;
        }

        $$[prop] = value;
        _base[prop] = fn;

        return model;
      },
      /**
        * model.addMethod allows new methods to be added to the model and base
        * interface. If the method is already defined an error will be raised.
        * @param {Number} method  - method key
        * @param {Number} fn      - new method
        * @return {Object} model  - returns model to allow for method chaining
        */
      addMethod: function addMethod(method, fn) {
        if (_base[method]) {
          // console.error(`${method} method is already defined.`);
          return model;
        }
        _base[method] = fn;

        return model;
      },
      /**
        * model.addPropFunctor allows new functor properties to be added to the
        * model and base interface. If the property is already defined an error
        * will be raised.
        * @param {Number} prop    - property key
        * @param {Number} value   - default value to set
        * @param {Number} fn      - function as new prop getter/setter
        * @return {Object} model  - returns model to allow for method chaining
        */
      addPropFunctor: function addPropFunctor(prop) {
        var value = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;
        var fn = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : propFnFunctor(prop);
        var cb = arguments[3];

        if ($$[prop] || _base[prop]) {
          // console.error(`${prop} property is already defined.`);
          return model;
        }
        // allow for null:default 'fn' in order to access callback
        fn = fn || propFnFunctor(prop, cb);

        fn(value);

        _base[prop] = fn;

        return model;
      },
      /**
        * model.addScaleFunctor allows new scale functor properties to be added
        * to the model and base interface. If the property is already defined
        * an error will be raised.
        * @param {Number} prop    - property key
        * @param {Number} value   - default value to set
        * @param {Number} fn      - function as new prop getter/setter
        * @return {Object} model  - returns model to allow for method chaining
        */
      addScaleFunctor: function addScaleFunctor(prop) {
        var value = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;
        var fn = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : scaleFnFunctor(prop);
        var cb = arguments[3];

        return model.addProp(prop, value, fn, cb);
      },
      /**
        * model.addDispatch allows dispatcher to be added to the model and base
        * interface.
        * @param {Number} prop    - property key
        * @param {Number} store   - store key
        * @param {Number} events  - array of event keys
        * @return {Object} model  - returns model to allow for method chaining
        */
      addDispatcher: function addDispatcher(events) {
        var prop = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'on';
        var store = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 'dispatch';

        if (_base[prop]) {
          // console.error(`${prop} property is already defined.`);
          return model;
        }
        if ($$[store]) {
          // console.error(`${store} value is already defined.`);
          return model;
        }

        _base[prop] = function (key, fn) {
          if (arguments.length === 0) return $$[store];
          if (arguments.length === 1) return $$[store].on(key);
          $$[store].on(key, fn);

          return _base;
        };

        $$[store] = d3.dispatch.apply(_this, events);

        return model;
      }
    };

    return model;
  }

  var isTouchDevice = function isTouchDevice() {
    return 'ontouchstart' in window || window.navigator.msPointerEnabled;
  };

  function tooltip () {
    var $$ = {};

    var tooltip = function tooltip(context) {
      var selection = context.selection ? context.selection() : context;
      selection.on(event('mouseover'), mouseover).on(event('mouseout'), mouseout);

      if (isTouchDevice()) {
        selection.on(event('click'), mouseout);
      } else {
        selection.on(event('mousemove'), mousemove);
      }

      return tooltip;
    };

    var getCoords = function getCoords(d, i) {
      var box = this.getBoundingClientRect();
      var coords = {};

      // construct at object, if null automatically set it based on cursor event position
      var at = ($$.at.call(this, d, i) || (d3.event.clientX > window.innerWidth / 2 ? 'center left' : 'center right')).split(' ');
      at = { x: at[1], y: at[0] };

      // switch for horizontal coordinate
      switch (at.x) {
        case 'left':
          coords.x = box.left;
          break;
        case 'center':
          coords.x = box.left + box.width / 2;
          break;
        default:
          // right
          coords.x = box.left + box.width;
      }

      // switch for vertical coordinate
      switch (at.y) {
        case 'bottom':
          coords.y = box.top + box.height;
          break;
        case 'center':
          coords.y = box.top + box.height / 2;
          break;
        default:
          // top
          coords.y = box.top;
      }
      return coords;
    };

    var mouseover = function mouseover(d, i) {
      var tooltipUpdate = $$.container.selectAll('.d2b-tooltip').data(function (d) {
        return [d];
      });

      var newTooltip = tooltipUpdate.enter().append('div').style('opacity', 0).attr('class', 'd2b-tooltip');

      newTooltip.append('div').attr('class', 'd2b-tooltip-content');

      tooltipUpdate = tooltipUpdate.merge(newTooltip);

      tooltipUpdate.transition().duration(100).style('opacity', 1);

      $$.dispatch.call('insert', tooltipUpdate, this, d, i);

      mousemove.call(this, d, i);
    };

    var mousemove = function mousemove(d, i) {
      var html = $$.html.call(this, d, i),
          target = $$.target.call(this, d, i),
          color = $$.color.call(this, d, i),
          targetNode = target ? target.node() : this,
          coords = $$.followMouse.call(this, d, i) ? { x: d3.event.clientX, y: d3.event.clientY } : getCoords.call(targetNode, d, i);

      // if (!$$.container.selectAll('.d2b-tooltip').size()) return mouseover(d, i);

      var tooltipUpdate = $$.container.selectAll('.d2b-tooltip').data(function (d) {
        return [d];
      });

      var my = $$.my.call(this, d, i) || (d3.event.clientX > window.innerWidth / 2 ? 'left' : 'right');

      tooltipUpdate.attr('class', 'd2b-tooltip d2b-tooltip-' + my).style('top', coords.y + 'px').style('left', coords.x + 'px').style('border-color', color).select('.d2b-tooltip-content').html(html);

      $$.dispatch.call('move', tooltipUpdate, this, d, i);
    };

    var mouseout = function mouseout(d, i) {
      var tooltipUpdate = $$.container.selectAll('.d2b-tooltip').data(function (d) {
        return [d];
      });

      tooltipUpdate.transition().duration(100).style('opacity', 0).remove();

      $$.dispatch.call('remove', tooltipUpdate, this, d, i);
    };

    var event = function event(listener) {
      return listener + '.d2b-tooltip';
    };

    /* Inherit from base model */
    base(tooltip, $$).addProp('container', d3.select('body')) //, null, updateContainer)
    .addMethod('clear', function (context) {
      (context.selection ? context.selection() : context).on(event('mouseover'), null).on(event('mouseout'), null).on(event('mousemove'), null);

      return tooltip;
    }).addPropFunctor('followMouse', false).addPropFunctor('color', null).addPropFunctor('my', null).addPropFunctor('at', null).addPropFunctor('target', null).addPropFunctor('html', null).addDispatcher(['insert', 'move', 'remove']);

    return tooltip;
  }

  function tooltipAxis () {
    var $$ = {};

    var tooltip = {};

    // Position markers relative to selected points and axes
    var positionMarker = function positionMarker(marker, info, type) {
      if (type === 'y') {
        if (info.y === Infinity) return marker.style('opacity', 0);
        marker.style('opacity', 1).attr('transform', 'translate(0, ' + info.y + ')').attr('y1', 0).attr('y2', 0).attr('x1', 0).attr('x2', $$.size.width);
      } else {
        if (info.x === Infinity) return marker.style('opacity', 0);
        marker.style('opacity', 1).attr('transform', 'translate(' + info.x + ', 0)').attr('x1', 0).attr('x2', 0).attr('y1', 0).attr('y2', $$.size.height);
      }
    };

    // Position tooltip relative to selected points and axes
    var positionTooltip = function positionTooltip(tooltip, info, base) {
      var node = tooltip.node();
      if (!node) return;
      var tooltipBox = tooltip.node().getBoundingClientRect();
      var x = base.x,
          y = base.y,
          pad = 10;

      if ($$.trackY) {
        if (info.y > $$.size.height / 2) {
          y += info.y - pad - tooltipBox.height;
        } else {
          y += info.y + pad;
        }
      } else {
        if (d3.event.clientY - base.y > $$.size.height / 2) {
          y = d3.event.clientY - pad - tooltipBox.height;
        } else {
          y = d3.event.clientY + pad;
        }
      }

      if ($$.trackX) {
        if (info.x > $$.size.width / 2) {
          x += info.x - pad - tooltipBox.width;
        } else {
          x += info.x + pad;
        }
      } else {
        if (d3.event.clientX - base.x > $$.size.width / 2) {
          x = d3.event.clientX - pad - tooltipBox.width;
        } else {
          x = d3.event.clientX + pad;
        }
      }

      x += window.pageXOffset;
      y += window.pageYOffset;

      tooltip.style('left', x + 'px').style('top', y + 'px');
    };

    // Populate tooltip with point rows
    var populateTooltip = function populateTooltip(tooltip, info) {
      var title = $$.title(info.points.map(function (d) {
        return d.data;
      }));

      tooltip.select('.d2b-tooltip-title').style('display', title ? 'block' : 'none').html(title);

      var content = tooltip.select('.d2b-tooltip-content');

      var row = content.selectAll('.d2b-tooltip-row').data(info.points);
      var rowEnter = row.enter().append('div').attr('class', 'd2b-tooltip-row');

      row.exit().remove();

      row = row.merge(rowEnter).html(function (d) {
        return d.row;
      }).style('border-left-color', function (d) {
        return d.color || 'transparent';
      });
    };

    // Finds the x, y coordinates associated with the points 'closest' to the cursor.
    // Also returns the set of points that meet the 'closest' configuration.
    var findPointInfo = function findPointInfo(base) {
      var cursor = { x: d3.event.clientX - base.x, y: d3.event.clientY - base.y };
      var x = Infinity,
          y = Infinity,
          points = [];
      for (var groupName in groups) {
        if (!groups.hasOwnProperty(groupName)) continue;
        var group = groups[groupName];

        var _loop = function _loop(graphName) {
          if (!group.hasOwnProperty(graphName)) return 'continue';
          var graph = group[graphName];
          var newPoints = [];
          graph.config.data.forEach(function (d, i) {
            var item = {
              data: d,
              x: oreq(graph.config.x(d, i), $$.x(d, i)),
              y: oreq(graph.config.y(d, i), $$.y(d, i)),
              color: oreq(graph.config.color(d, i), $$.color(d, i)),
              row: oreq(graph.config.row(d, i), $$.row(d, i))
            };

            if ($$.trackX && $$.trackY) {
              if (item.x === x && item.y === y) return newPoints.push(item);

              var od = Math.sqrt(Math.pow(x - cursor.x, 2) + Math.pow(y - cursor.y, 2));
              var nd = Math.sqrt(Math.pow(item.x - cursor.x, 2) + Math.pow(item.y - cursor.y, 2));

              if (nd < od && nd < $$.threshold) {
                x = item.x;
                y = item.y;
                points = [];
                newPoints = [item];
              }
            } else if ($$.trackX) {
              if (item.x === x) return newPoints.push(item);

              var _od = Math.abs(x - cursor.x);
              var _nd = Math.abs(item.x - cursor.x);

              if (_nd < _od && _nd < $$.threshold) {
                x = item.x;
                points = [];
                newPoints = [item];
              }
            } else if ($$.trackY) {
              if (item.y === y) return newPoints.push(item);

              var _od2 = Math.abs(y - cursor.y);
              var _nd2 = Math.abs(item.y - cursor.y);

              if (_nd2 < _od2 && _nd2 < $$.threshold) {
                y = item.y;
                points = [];
                newPoints = [item];
              }
            }
          });

          points = points.concat(newPoints);
        };

        for (var graphName in group) {
          var _ret = _loop(graphName);

          if (_ret === 'continue') continue;
        }
      }

      points = points.sort(function (a, b) {
        return d3.ascending(a.x, b.x) || d3.ascending(a.y, b.y);
      });

      return { x: x, y: y, points: points };
    };

    // Exit tooltip element.
    var exitElement = function exitElement(el) {
      el.transition().duration(50).style('opacity', 0).remove();
    };

    // Enter tooltip element.
    var enterElement = function enterElement(el) {
      el.transition().duration(50).style('opacity', 1);
    };

    // Enter tooltip components.
    var enter = function enter(d, i) {
      var markerX = $$.svgContainer.selectAll('.d2b-tooltip-marker-x').data($$.trackX ? [tooltip] : []);
      var markerXEnter = markerX.enter().append('line').attr('class', 'd2b-tooltip-marker-x d2b-tooltip-marker');

      var markerY = $$.svgContainer.selectAll('.d2b-tooltip-marker-y').data($$.trackY ? [tooltip] : []);
      var markerYEnter = markerY.enter().append('line').attr('class', 'd2b-tooltip-marker-y d2b-tooltip-marker');

      var tooltipEl = $$.htmlContainer.selectAll('.d2b-tooltip').data([tooltip]);

      var tooltipEnter = tooltipEl.enter().append('div').attr('class', 'd2b-tooltip d2b-tooltip-axis');

      tooltipEnter.merge(tooltipEl).call(enterElement);
      markerY.merge(markerYEnter).call(enterElement);
      markerX.merge(markerXEnter).call(enterElement);

      tooltipEnter.append('div').attr('class', 'd2b-tooltip-title');
      tooltipEnter.append('div').attr('class', 'd2b-tooltip-content');

      $$.dispatch.call('insert', $$.tooltip, d, i);
    };

    // Exit tooltip components.
    var exit = function exit() {
      $$.svgContainer.selectAll('.d2b-tooltip-marker-x').data([]).exit().call(exitElement);
      $$.svgContainer.selectAll('.d2b-tooltip-marker-y').data([]).exit().call(exitElement);
      $$.htmlContainer.selectAll('.d2b-tooltip').data([]).exit().call(exitElement);
    };

    // Tracker mousemove event.
    var mousemove = function mousemove(d, i) {
      var base = $$.svgContainer.selectAll('.d2b-tooltip-base').data([d]);
      base = base.merge(base.enter().append('rect').attr('class', 'd2b-tooltip-base'));
      var baseBox = base.node().getBoundingClientRect();
      baseBox = { x: baseBox.left, y: baseBox.top };

      var pointInfo = findPointInfo(baseBox);

      if (pointInfo.points.length) enter();else return exit();

      $$.svgContainer.select('.d2b-tooltip-marker-x').call(positionMarker, pointInfo, 'x');

      $$.svgContainer.select('.d2b-tooltip-marker-y').call(positionMarker, pointInfo, 'y');

      $$.htmlContainer.select('.d2b-tooltip').call(populateTooltip, pointInfo).call(positionTooltip, pointInfo, baseBox);

      $$.dispatch.call('move', $$.tooltip, d, i);
    };

    // Tracker mouseout event.
    var mouseout = function mouseout(d, i) {
      exit();

      $$.dispatch.call('remove', $$.tooltip, d, i);
    };

    // Event key builder.
    var event = function event(listener) {
      return listener + '.d2b-tooltip-axis';
    };

    // update mouse event tracker
    var updateTracker = function updateTracker(n, o) {
      if (o) {
        o.on(event('mouseout'), null).on(event('mousemove'), null);
      }
      if (n) {
        n.on(event('mouseout'), mouseout).on(event('mousemove'), mousemove);
      }
    };

    // setup tooltip model
    base(tooltip, $$).addProp('htmlContainer', d3.select('body')).addProp('svgContainer', null).addProp('tracker', d3.select('body'), null, updateTracker).addProp('size', { height: 0, width: 0 }).addProp('trackX', true).addProp('trackY', false).addProp('threshold', Infinity).addMethod('clear', function (groupName, graphName) {
      if (arguments.length === 0) groups = {};else if (arguments.length === 1) delete groups[groupName];else if (arguments.length >= 2) delete groups[groupName][graphName];

      return tooltip;
    }).addPropFunctor('title', null).addPropFunctor('x', function (d) {
      return d.x;
    }).addPropFunctor('y', function (d) {
      return d.y;
    }).addPropFunctor('color', null).addPropFunctor('row', null).addDispatcher(['move', 'insert', 'remove']);

    // construct an interface for each graph that is initialized
    var groups = {};
    tooltip.graph = function () {
      var groupName = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
      var graphName = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;

      var graphs = groups[groupName] = groups[groupName] || {};
      var graph = graphs[graphName];

      if (!graph) {
        graph = graphs[graphName] = { interface: {}, config: {} };
        var graphModel = base(graph.interface, graph.config);

        graphModel.addProp('data', []).addMethod('clear', function () {
          graph.config.data = [];
          return graph.interface;
        }).addMethod('addPoint', function (p) {
          graph.config.data.push(p);
          return graph.interface;
        }).addPropFunctor('x', null).addPropFunctor('y', null).addPropFunctor('color', null).addPropFunctor('row', null);
      }

      return graph.interface;
    };

    return tooltip;
  }

  // d2b.stack will stack the x and y values in place for
  // some datum and d3.stack configuration.
  function stack () {
    var $$ = {};

    var stack = function stack(datum) {
      var _this = this;

      var original = datum;

      // for simplicity map datum to just array of values arrays
      datum = datum.map($$.values);

      // format values to be in the form
      // [
      //   {x_1: y_1, x_2: y_2, .. },
      //   {x_1: y_1, x_2: y_2, .. },
      //   ..
      // ]
      var xset = [];

      var vals = datum.map(function (d) {
        var nodes = {};
        d.forEach(function (d, i) {
          var x = $$.x.call(_this, d, i);
          xset.push(x);
          nodes[x] = $$.y.call(_this, d, i);
        });
        return nodes;
      });

      // find unique set of x values
      xset = d3.set(xset).values();

      // value => index mapping of x values
      var xmap = xset.reduce(function (o, v, i) {
        o[v] = i;
        return o;
      }, {});

      // graph keys (just use index)
      var keys = d3.range(0, datum.length);

      // transpose values for d3.stack
      var tvals = xset.map(function (col) {
        return vals.map(function (row) {
          return row[col] || 0;
        });
      });

      // stack transposed values
      $$.stack.keys(keys).value(function (d, k) {
        return d[k] || 0;
      });
      var stacking = $$.stack(tvals);

      // reassociate the stacked values with the original datum
      datum.forEach(function (d, i) {
        d.forEach(function (val, ind) {
          var x = $$.x.call(_this, val, ind);
          var ys = stacking[i][xmap[x]];
          $$.out.call(_this, val, ys[0], ys[1], x);
        });
      });

      return original;
    };

    /* Inherit from base model */
    base(stack, $$).addProp('stack', d3.stack()).addPropFunctor('values', function (d) {
      return d;
    }).addPropFunctor('x', function (d) {
      return d.x;
    }).addPropFunctor('y', function (d) {
      return d.y;
    }).addProp('out', function (d, y0, y1) {
      d.y0 = y0;
      d.y1 = y1;
    });

    return stack;
  }

  function breadcrumbs () {
    var $$ = {};

    var breadcrumbs = function breadcrumbs(context) {
      var selection = context.selection ? context.selection() : context;

      var bcs = selection.selectAll('.d2b-breadcrumbs').data(function (d) {
        return [d];
      });

      var bcsEnter = bcs.enter().append('div').attr('class', 'd2b-breadcrumbs');

      bcs = bcs.merge(bcsEnter).classed('d2b-vertical', $$.vertical);

      var bc = bcs.selectAll('.d2b-breadcrumb').data($$.values, $$.key),
          bcExit = bc.exit();

      var bcEnter = bc.enter().append('div').attr('class', 'd2b-breadcrumb').style('opacity', 0);

      bcEnter.append('div').attr('class', 'd2b-breadcrumb-icon');
      bcEnter.append('div').attr('class', 'd2b-breadcrumb-content');

      bc = bc.merge(bcEnter).order();

      bc.select('.d2b-breadcrumb-content').html($$.html);

      if (context !== selection) {
        bc = bc.transition(context);
        bcExit = bcExit.transition(context).style('opacity', 0);
      }

      bc.style('border-color', $$.color).style('opacity', 1).select('.d2b-breadcrumb-icon').style('background-color', $$.color);

      bcExit.remove();

      selection.dispatch('breadcrumbs-updated', { bubbles: true });

      return breadcrumbs;
    };

    /* Inherit from base model */
    base(breadcrumbs, $$).addPropFunctor('values', function (d) {
      return d;
    }).addPropFunctor('key', function (d, i) {
      return i;
    }).addPropFunctor('color', 'blue').addPropFunctor('html', function (d) {
      return d.html;
    }).addPropFunctor('vertical', true);

    return breadcrumbs;
  }

  var color = d3.scaleOrdinal(d3.schemeCategory10);

  function legend () {
    var $$ = {};

    var symbol = d3.symbol().size(80);

    var legend = function legend(context) {
      var selection = context.selection ? context.selection() : context;

      var leg = selection.selectAll('.d2b-legend').data(function (d) {
        return [d];
      });

      var legEnter = leg.enter().append('div').attr('class', 'd2b-legend');

      leg = leg.merge(legEnter).classed('d2b-vertical', $$.vertical);

      var legItem = leg.selectAll('.d2b-legend-item').data($$.values, $$.key),
          legItemExit = legItem.exit();

      var legItemEnter = legItem.enter().append('div').attr('class', 'd2b-legend-item').style('opacity', 0);

      legItemEnter.append('div').attr('class', 'd2b-legend-icon');
      legItemEnter.append('div').attr('class', 'd2b-legend-content');

      legItem = legItem.merge(legItemEnter).order();

      legItem.select('.d2b-legend-content').html($$.html);

      if (context !== selection) {
        legItem = legItem.transition(context);
        legItemExit = legItemExit.transition(context).style('opacity', 0);
      }

      legItem.style('opacity', 1).each(function (d, i) {
        // legend item customization
        var item = d3.select(this),
            color = $$.color(d, i),
            empty = $$.empty(d, i);

        item.style('border-color', color);

        // legend icon customization
        var icon = $$.icon(d, i),
            iconDiv = item.select('.d2b-legend-icon'),
            fa = [],
            shape = [],
            rect = iconDiv.node().getBoundingClientRect(),
            size = { width: rect.width, height: rect.height },
            center = { x: size.width / 2, y: size.height / 2 };

        if (typeof icon === 'string') fa.push(icon);else shape.push(icon);

        var svgIcon = iconDiv.selectAll('.d2b-legend-svg-icon').data(function (d) {
          return [d];
        });

        var svgIconEnter = svgIcon.enter().append('svg');
        svgIconEnter.attr('class', 'd2b-legend-svg-icon').attr('width', size.width).attr('height', size.height);

        svgIcon = svgIcon.merge(svgIconEnter);

        var svgFa = svgIcon.selectAll('text').data(fa),
            svgFaEnter = svgFa.enter().append('text');
        svgFa.exit().remove();
        svgFaEnter.append('tspan');
        svgFa = svgFa.merge(svgFaEnter);
        svgFa.style('stroke', color).style('fill', empty ? 'white' : color).attr('transform', 'translate(' + center.x + ',' + center.y * 1.65 + ')').select('tspan').text(function (d) {
          return d;
        });

        var svgShape = svgIcon.selectAll('path').data(shape);
        svgShape.exit().remove();
        svgShape = svgShape.merge(svgShape.enter().append('path'));
        svgShape.style('stroke', color).style('fill', empty ? 'white' : color).attr('d', function (d) {
          return symbol.type(d)();
        }).attr('transform', 'translate(' + center.x + ',' + center.y + ')');
      });

      // bind events
      leg.each(function (d, i) {
        var allowEmptied = $$.allowEmptied(d, i),
            items = d3.select(this).selectAll('.d2b-legend-item'),
            setAllEmpty = function setAllEmpty(state) {
          items.each(function (dd, ii) {
            $$.setEmpty(dd, ii, state);
          });
        },
            allEmpty = function allEmpty() {
          var allEmpty = true;

          items.each(function (dd, ii) {
            if (!$$.empty(dd, ii)) allEmpty = false;
          });

          return allEmpty;
        },
            click = function click(d, i) {
          $$.setEmpty(d, i, !$$.empty(d, i));
          if (!allowEmptied && allEmpty()) setAllEmpty(false);
          selection.call(legend);
          d3.select(this.parentNode).dispatch('change', { bubbles: true });
        },
            dblclick = function dblclick(d, i) {
          setAllEmpty(true);
          $$.setEmpty(d, i, false);
          selection.call(legend);
          d3.select(this.parentNode).dispatch('change', { bubbles: true });
        };

        items.each(function (d, i) {
          var clickable = $$.clickable(d, i),
              dblclickable = $$.dblclickable(d, i);

          d3.select(this).on('click', clickable ? click : null).on('dblclick', dblclickable ? dblclick : null);
        });
      });

      selection.dispatch('legend-updated', { bubbles: true });

      legItemExit.remove();
    };

    /* Inherit from base model */
    base(legend, $$).addPropFunctor('values', function (d) {
      return d;
    }).addPropFunctor('key', function (d, i) {
      return i;
    }).addPropFunctor('color', function (d) {
      return color(d.html);
    }).addPropFunctor('html', function (d) {
      return d.html;
    }).addPropFunctor('icon', '\uF111').addPropFunctor('vertical', false).addPropFunctor('allowEmptied', false).addPropFunctor('clickable', false).addPropFunctor('dblclickable', false).addPropFunctor('empty', function (d) {
      return d.empty;
    }).addPropFunctor('setEmpty', function (d, i, state) {
      return d.empty = state;
    });

    return legend;
  }

  function chartFrame () {

    // Padding can either be a constant or an object containing any of the
    // attributes (left, right, top, bottom). cleanPadding returns an object
    // with (left, right, top, bottom) attributes.
    function cleanPadding(pad) {
      var padding = { top: 0, left: 0, right: 0, bottom: 0 };
      if (typeof pad === 'number') return { top: pad, left: pad, right: pad, bottom: pad };
      ['top', 'bottm', 'right', 'left'].forEach(function (d) {
        if (pad[d]) padding[d] == pad[d];
      });
      return padding;
    }

    // Size can contain width or height attibutes. If either are unset the
    // size is derived from the bounding client rectangle.
    function cleanSize(s, box) {
      return {
        width: s && s.width > 0 ? s.width : box.width,
        height: s && s.height > 0 ? s.height : box.height
      };
    }

    var $$ = {};

    var chartFrame = function chartFrame(context) {
      var selection = context.selection ? context.selection() : context;

      var frame = selection.selectAll('.d2b-chart-frame').data(function (d) {
        return [d];
      }),
          frameEnter = frame.enter().append('div').attr('class', 'd2b-chart-frame');

      frame = frame.merge(frameEnter);

      selection.each(function (d) {
        var frame = d3.select(this).select('.d2b-chart-frame'),
            frameUpdate = frame,
            padding = cleanPadding($$.padding(d)),
            chartPadding = cleanPadding($$.chartPadding(d)),
            size = cleanSize($$.size(d), this.getBoundingClientRect());

        enterUpdate(frame, frameUpdate, function (d) {
          d.style('width', size.width + 'px').style('height', size.height + 'px');
        });

        size.width -= padding.left + padding.right;
        size.height -= padding.top + padding.bottom;

        var legendDatum = $$.legendEnabled(d) ? [d] : [];

        var legend = frame.selectAll('.d2b-legend-frame').data(legendDatum),
            legendEnter = legend.enter().append('div').attr('class', 'd2b-legend-frame'),
            legendExit = legend.exit();

        legendExit.remove();

        legendEnter.append('div').attr('class', 'd2b-legend-container');

        legend = legend.merge(legendEnter);

        var legendUpdate = legend;

        var breadcrumbsDatum = $$.breadcrumbsEnabled(d) ? [d] : [];

        var breadcrumbs = frame.selectAll('.d2b-breadcrumbs-frame').data(breadcrumbsDatum),
            breadcrumbsEnter = breadcrumbs.enter().append('div').attr('class', 'd2b-breadcrumbs-frame'),
            breadcrumbsExit = breadcrumbs.exit();

        breadcrumbsExit.remove();

        breadcrumbsEnter.append('div').attr('class', 'd2b-breadcrumbs-container');

        breadcrumbs = breadcrumbs.merge(breadcrumbsEnter);

        var breadcrumbsUpdate = breadcrumbs;

        var chart = frame.selectAll('.d2b-chart').data(function (d) {
          return [d];
        }),
            chartEnter = chart.enter().append('svg').attr('class', 'd2b-chart');

        chartEnter.append('g').attr('class', 'd2b-chart-container');

        chart = chart.merge(chartEnter);

        var chartUpdate = chart;

        if (context !== selection) {
          frameUpdate = frameUpdate.transition(context);
          legendUpdate = legendUpdate.transition(context);
          breadcrumbsUpdate = breadcrumbsUpdate.transition(context);
          chartUpdate = chartUpdate.transition(context);
        }

        placeComponent(breadcrumbs, breadcrumbsEnter, breadcrumbsUpdate, $$.breadcrumbsOrient(d), padding, size);
        placeComponent(legend, legendEnter, legendUpdate, $$.legendOrient(d), padding, size);

        enterUpdate(chartEnter, chartUpdate, function (d) {
          d.style('left', padding.left + 'px').style('top', padding.top + 'px').style('width', size.width + 'px').style('height', size.height + 'px');

          d.select('.d2b-chart-container').attr('transform', 'translate(' + [chartPadding.left, chartPadding.top] + ')');
        });

        size.width -= chartPadding.left + chartPadding.right;
        size.height -= chartPadding.top + chartPadding.bottom;

        // Store the chart size on the node so that the chart itself can get the
        // true size instead of the transitioning size.
        chart.select('.d2b-chart-container').node().__size__ = size;
      });

      selection.dispatch('chart-frame-updated', { bubbles: true });

      return chartFrame;
    };

    function enterUpdate(enter, update, fn) {
      fn(enter);
      fn(update);
    }

    function placeComponent(el, enter, update, orient, padding, size) {
      var node = el.node();
      if (node) {
        update.style('top', '').style('left', '').style('right', '').style('bottom', '').style('width', '').style('height', '');

        var box = void 0;

        if (orient === 'right' || orient === 'left') {
          el.classed('d2b-vertical', true);
          box = node.getBoundingClientRect();

          enterUpdate(enter, update, function (d) {
            d.style(orient, padding[orient] + 'px').style('top', padding.top + 'px').style('height', size.height + 'px');
          });

          padding[orient] += box.width;
          size.width -= box.width;
        } else if (orient === 'top' || orient === 'bottom') {
          el.classed('d2b-vertical', false);
          box = node.getBoundingClientRect();

          enterUpdate(enter, update, function (d) {
            d.style(orient, padding[orient] + 'px').style('left', padding.left + 'px').style('width', size.width + 'px');
          });

          padding[orient] += box.height;
          size.height -= box.height;
        } else {
          el.classed('d2b-vertical', false);
        }
      }
    }

    /* Inherit from base model */
    base(chartFrame, $$).addPropFunctor('size', null).addPropFunctor('legendEnabled', true).addPropFunctor('legendOrient', 'bottom').addPropFunctor('breadcrumbsEnabled', false).addPropFunctor('breadcrumbsOrient', 'right').addPropFunctor('chartPadding', 10).addPropFunctor('padding', 10);

    return chartFrame;
  }

  var d2bid = (function () {
    return Math.random().toString(36).substr(2, 9);
  });

  // Returns the specified object, omit the properties with keys matching
  // those in the specified keys array.

  function omit(obj, keys) {
    var newObj = {};
    for (var k in obj) {
      if (typeof obj[k] !== 'function') {
        if (keys.indexOf(k) < 0) newObj[k] = obj[k];
      }
    }
    return newObj;
  }

  var number = (function (x) {
    return x === null ? NaN : +x;
  });

  function mean(arr, value, weight) {
    var totalWeight = 0,
        contribution = 0;
    weight = functor(weight || 1);
    value = functor(value || function (d) {
      return d;
    });
    arr.filter(function (a) {
      return !isNaN(number(weight(a))) && !isNaN(number(value(a)));
    }).forEach(function (item) {
      var w = weight(item),
          v = value(item);
      totalWeight += w;
      contribution += v * w;
    });
    if (arr.length && totalWeight) return contribution / totalWeight;
  }

  mean.tendancy = 'mean';

  function median(arr, value, weight) {
    weight = functor(weight || 1);
    value = functor(value || function (d) {
      return d;
    });

    var medians = [],
        midWeight;

    var newArray = arr.filter(function (a) {
      return weight(a) !== 0 && !isNaN(number(weight(a))) && !isNaN(number(value(a)));
    }).sort(function (a, b) {
      return d3.ascending(value(a), value(b));
    });

    midWeight = Math.round(d3.sum(newArray, function (item) {
      return weight(item);
    }) / 2 * 1e12) / 1e12;

    var currentPosition = 0;
    var getNext = false;

    newArray.forEach(function (item) {
      if (getNext) {
        medians.push(value(item));
        getNext = false;
      }

      currentPosition += weight(item);

      if (currentPosition === midWeight) {
        medians.push(value(item));
        getNext = true;
      }

      if (currentPosition > midWeight && medians.length === 0) {
        medians.push(value(item));
      }
    });

    if (arr.length) return mean(medians);
  }

  median.tendancy = 'median';

  function mode(arr, value, weight) {
    weight = functor(weight || 1);
    value = functor(value || function (d) {
      return d;
    });

    var modes = [],
        maxFrequency = 0,
        frequencies = {};

    arr.forEach(function (item) {
      var val = number(value(item));
      if (isNaN(value(item))) return;
      frequencies[val] = frequencies[val] || 0;
      frequencies[val] += weight(item);

      if (frequencies[val] > maxFrequency) {
        maxFrequency = frequencies[value(item)];
        modes = [value(item)];
      } else if (frequencies[value(item)] == maxFrequency) {
        modes.push(value(item));
      }
    });

    if (maxFrequency <= 1 || !modes.length) return null;else if (modes.length === 1) return modes[0];else return modes;
  }

  mode.tendancy = 'mode';

  function range(arr, value) {
    value = functor(value || function (d) {
      return d;
    });
    var extent = d3.extent(arr, value);
    if (arr.length) return extent[1] - extent[0];
  }

  range.tendancy = 'range';

  function midpoint(arr, value) {
    value = functor(value || function (d) {
      return d;
    });
    if (arr.length) return d3.mean(d3.extent(arr, value));
  }

  midpoint.tendancy = 'midpoint';

  function toDegrees (angle) {
    return angle * (180 / Math.PI);
  }

  function toRadians (angle) {
    return angle * (Math.PI / 180);
  }

  var pi = Math.PI;
  var sqrt8 = Math.sqrt(8);
  var sqrt2 = Math.sqrt(2);

  var mars = {
    draw: function draw(context, size) {
      var r = Math.sqrt(size / (pi + 5 / 4));
      var s = 0.3125 * r;
      var theta = 2 * Math.asin(1 / 4);
      var theta2 = (pi / 2 - theta) / 2;
      var circlex = r / sqrt8 - r * Math.cos(theta2);
      var circley = r * Math.sin(theta2);

      context.arc(circlex, circley, r, -theta2, 2 * pi - theta - theta2);
      context.lineTo(r * (5 / 4 - 1 / sqrt2), -r * (1 / sqrt8 + 5 / 4 - 1 / sqrt2));
      context.lineTo(r * (5 / 4 - 1 / sqrt2) - s, -r * (1 / sqrt8 + 5 / 4 - 1 / sqrt2));
      context.lineTo(r * (5 / 4 - 1 / sqrt2) - s, -r * (1 / sqrt8 + 7 / 4 - 1 / sqrt2));
      context.lineTo(r * (7 / 4 - 1 / sqrt2 + 1 / sqrt8), -r * (1 / sqrt8 + 7 / 4 - 1 / sqrt2));
      context.lineTo(r * (7 / 4 - 1 / sqrt2 + 1 / sqrt8), -r * (5 / 4 - 1 / sqrt2) + s);
      context.lineTo(r * (5 / 4 - 1 / sqrt2 + 1 / sqrt8), -r * (5 / 4 - 1 / sqrt2) + s);
      context.lineTo(r * (5 / 4 - 1 / sqrt2 + 1 / sqrt8), -r * (5 / 4 - 1 / sqrt2));
      context.closePath();
    }
  };

  var venus = {
    draw: function draw(context, size) {
      var r = Math.sqrt(size / (pi + 5 / 4));
      var theta = 2 * Math.asin(1 / 4);
      var circley = r / 4 - r * Math.cos(theta / 2);

      context.arc(0, circley, r, -pi * 3 / 2 + theta / 2, pi / 2 - theta / 2);
      context.lineTo(r / 4, 3 * r / 4);
      context.lineTo(r * 3 / 4, 3 * r / 4);
      context.lineTo(r * 3 / 4, 5 * r / 4);
      context.lineTo(r / 4, 5 * r / 4);
      context.lineTo(r / 4, 7 * r / 4);
      context.lineTo(-r / 4, 7 * r / 4);
      context.lineTo(-r / 4, 5 * r / 4);
      context.lineTo(-r * 3 / 4, 5 * r / 4);
      context.lineTo(-r * 3 / 4, 3 * r / 4);
      context.lineTo(-r / 4, 3 * r / 4);
      context.closePath();
    }
  };

  // point svg generator
  function point () {
    var $$ = {};

    /* Update Function */
    var point = function point(context) {
      var selection = context.selection ? context.selection() : context;

      // point background
      var back = selection.selectAll('path.d2b-point-back').data(function (d) {
        return [d];
      });

      back.enter().append('path').attr('class', 'd2b-point-back').attr('d', symbolNormal).style('fill-opacity', 0).style('stroke', $$.stroke).style('stroke-width', $$.strokeWidth);

      if (context !== selection) {
        back = back.transition(context);
      }

      back.attr('d', symbolNormal).style('stroke', $$.stroke).style('stroke-width', $$.strokeWidth);

      // point foreground
      var front = selection.selectAll('path.d2b-point-front').data(function (d) {
        return [d];
      });

      front.enter().append('path').attr('class', 'd2b-point-front').attr('d', symbolSmall).style('opacity', frontOpacity).style('fill', $$.fill).style('stroke', $$.stroke).style('stroke-width', $$.strokeWidth);

      if (context !== selection) {
        front = front.transition(context);
      }

      front.attr('d', symbolSmall).style('opacity', frontOpacity).style('fill', $$.fill).style('stroke', $$.stroke).style('stroke-width', $$.strokeWidth);

      // set mouse events if active
      selection.each(function (d, i) {
        var active = $$.active.call(this, d, i);
        d3.select(this).on('mouseover.d2b-point', active ? mouseover : null).on('mouseout.d2b-point', active ? mouseout : null);
      });

      selection.dispatch('point-updated', { bubbles: true });

      return point;
    };

    var symbol = d3.symbol();

    /* Inherit from base model */
    base(point, $$).addPropFunctor('size', 150, null, function (d) {
      return symbol.size(d);
    }).addPropFunctor('type', d3.symbolCircle, null, function (d) {
      return symbol.type(d);
    }).addPropFunctor('active', false).addPropFunctor('empty', false).addPropFunctor('fill', 'steelblue').addPropFunctor('stroke', function (d, i) {
      return d3.rgb($$.fill.call(this, d, i)).darker(0.3);
    }).addPropFunctor('strokeWidth', '1px');

    function frontOpacity(d, i) {
      return $$.empty.call(this, d, i) ? 0 : 1;
    }

    function symbolBig(d, i) {
      var size = $$.size.call(this, d, i),
          empty = $$.empty.call(this, d, i);
      return symbol.size(empty ? size : 2.5 * size).call(this, d, i);
    }

    function symbolSmall(d, i) {
      var size = $$.size.call(this, d, i),
          empty = $$.empty.call(this, d, i);
      return symbol.size(empty ? size / 3 : size).call(this, d, i);
    }

    function symbolNormal(d, i) {
      var size = $$.size.call(this, d, i);
      return symbol.size(size).call(this, d, i);
    }

    function mouseover(d, i) {
      var empty = $$.empty.call(this, d, i);

      d3.select(this).select('path.d2b-point-back').transition().duration(100).attr('d', symbolBig);

      d3.select(this).select('path.d2b-point-front').transition().duration(100).style('opacity', empty ? 0.5 : 1).attr('d', symbolSmall);
    }

    function mouseout(d, i) {
      var empty = $$.empty.call(this, d, i);

      d3.select(this).select('path.d2b-point-back').transition().duration(100).attr('d', symbolNormal);

      d3.select(this).select('path.d2b-point-front').transition().duration(100).style('opacity', empty ? 0 : 1).attr('d', symbolSmall);
    }

    return point;
  }

  // pie svg generator
  function svgPie () {

    var $$ = {};

    /* Update Function */
    var pie = function pie(context) {
      var selection = context.selection ? context.selection() : context;

      $$.pie.value($$.value);

      $$.arc.startAngle(function (d) {
        return d.startAngle;
      }).endAngle(function (d) {
        return d.endAngle;
      }).padAngle(function (d) {
        return d.padAngle;
      });

      var pieSvg = selection.selectAll('.d2b-pie').data(function (d) {
        return [$$.pie($$.values(d))];
      }),
          pieSvgEnter = pieSvg.enter().append('g').attr('class', 'd2b-pie');

      pieSvg = pieSvg.merge(pieSvgEnter);

      pieSvg.each(function (values) {
        var el = d3.select(this);

        // select arc group and get their old data
        var arc = el.selectAll('.d2b-pie-arc');
        var oldData = arc.data();

        arc = arc.data(values, function (d, i) {
          d.key = $$.key(d.data, i);
          return d.key;
        });

        var arcEnter = arc.enter().append('g').attr('class', 'd2b-pie-arc'),
            arcExit = arc.exit(),
            arcUpdate = arc.merge(arcEnter).order();

        arcEnter.append('path').attr('fill', function (d, i) {
          return $$.color.call(this, d.data, i);
        });

        // retrieve new data
        var newData = arcUpdate.data();

        // for new arcs, find and set the neighboring insertion point
        arcEnter.select('path').each(function (d, i) {
          this.current = findNeighborArc(i, oldData, newData);
        });

        arcExit.datum(function (d, i) {
          var data = findNeighborArc(i, newData, oldData);
          data.data = d.data;
          data.innerRadius = d.innerRadius;
          data.outerRadius = d.outerRadius;
          return data;
        });

        // start transition for exiting and updating arcs
        if (context !== selection) {
          arcExit = arcExit.transition(context);
          arcUpdate = arcUpdate.transition(context);
        }

        // transition arc path
        arcUpdate.select('path').call(tweenArc, $$.arc).attr('fill', function (d, i) {
          return $$.color.call(this, d.data, i);
        });

        arcExit.remove().select('path').call(tweenArc, $$.arc);
      });

      selection.dispatch('svg-pie-updated', { bubbles: true });

      return pie;
    };

    /* Inherit from base model */
    base(pie, $$).addProp('arc', d3.arc()).addProp('pie', d3.pie().sort(null)).addPropFunctor('values', function (d) {
      return d;
    }).addPropFunctor('key', function (d) {
      return d.label;
    }).addPropFunctor('value', function (d) {
      return d.value;
    }).addPropFunctor('color', function (d) {
      return color(d.label);
    });

    function findNeighborArc(i, data0, data1) {
      var preceding = findPreceding(i, data0, data1),
          following = findFollowing(i, data0, data1);
      if (preceding) {
        return { startAngle: preceding.endAngle, endAngle: preceding.endAngle };
      } else if (following) {
        return { startAngle: following.startAngle, endAngle: following.startAngle };
      }
      return { startAngle: 0, endAngle: 0 };
    }

    // Find the element in data0 that joins the highest preceding element in data1.
    function findPreceding(i, data0, data1) {
      var m = data0.length;
      while (--i >= 0) {
        var k = $$.key(data1[i].data, i);
        for (var j = 0; j < m; ++j) {
          if ($$.key(data0[j].data, j) === k) return data0[j];
        }
      }
    }

    // Find the element in data0 that joins the lowest following element in data1.
    function findFollowing(i, data0, data1) {
      var n = data1.length,
          m = data0.length;
      while (++i < n) {
        var k = $$.key(data1[i].data, i);
        for (var j = 0; j < m; ++j) {
          if ($$.key(data0[j].data, j) === k) return data0[j];
        }
      }
    }

    return pie;
  }

  function isFinitePath (path) {
    return !(path.indexOf('NaN') > -1 || path.indexOf('Inifnity') > -1);
  }

  var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) {
    return typeof obj;
  } : function (obj) {
    return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
  };

  var asyncGenerator = function () {
    function AwaitValue(value) {
      this.value = value;
    }

    function AsyncGenerator(gen) {
      var front, back;

      function send(key, arg) {
        return new Promise(function (resolve, reject) {
          var request = {
            key: key,
            arg: arg,
            resolve: resolve,
            reject: reject,
            next: null
          };

          if (back) {
            back = back.next = request;
          } else {
            front = back = request;
            resume(key, arg);
          }
        });
      }

      function resume(key, arg) {
        try {
          var result = gen[key](arg);
          var value = result.value;

          if (value instanceof AwaitValue) {
            Promise.resolve(value.value).then(function (arg) {
              resume("next", arg);
            }, function (arg) {
              resume("throw", arg);
            });
          } else {
            settle(result.done ? "return" : "normal", result.value);
          }
        } catch (err) {
          settle("throw", err);
        }
      }

      function settle(type, value) {
        switch (type) {
          case "return":
            front.resolve({
              value: value,
              done: true
            });
            break;

          case "throw":
            front.reject(value);
            break;

          default:
            front.resolve({
              value: value,
              done: false
            });
            break;
        }

        front = front.next;

        if (front) {
          resume(front.key, front.arg);
        } else {
          back = null;
        }
      }

      this._invoke = send;

      if (typeof gen.return !== "function") {
        this.return = undefined;
      }
    }

    if (typeof Symbol === "function" && Symbol.asyncIterator) {
      AsyncGenerator.prototype[Symbol.asyncIterator] = function () {
        return this;
      };
    }

    AsyncGenerator.prototype.next = function (arg) {
      return this._invoke("next", arg);
    };

    AsyncGenerator.prototype.throw = function (arg) {
      return this._invoke("throw", arg);
    };

    AsyncGenerator.prototype.return = function (arg) {
      return this._invoke("return", arg);
    };

    return {
      wrap: function (fn) {
        return function () {
          return new AsyncGenerator(fn.apply(this, arguments));
        };
      },
      await: function (value) {
        return new AwaitValue(value);
      }
    };
  }();

  // copy d3.annotation instance for single use cases

  var copy = function copy(_annotation) {
    return d3SvgAnnotation.annotation().disable(_annotation.disable()).textWrap(_annotation.textWrap()).notePadding(_annotation.notePadding()).type(_annotation.type()).accessors(_annotation.accessors()).accessorsInverse(_annotation.accessorsInverse()).ids(_annotation.ids()).editMode(_annotation.editMode()).collection(_annotation.collection());
  };

  // Update a set of annotations, should only be used for point oriented annotations. (e.g. not rectangles / thresholds)
  /**
   * @param {d3 transition or selection}    context             annotation container context
   * @param {d3 annotation}                 annotation          annotation generator
   * @param {string}                        selectorClass       class by which to select the annotations
   * @param {accessor}                      getData             get annotation data array from context datum
   * @param {accessor (d, a) => {}}         getColor            get annotation color from from context datum and annotation datum
   * @param {accessor (d, a) => {}}         getTransform        get annotation transform from context datum and annotation datum
   * @param {accessor (d, a) => {}}         getTransformEnter   get annotation entrance transform from context datum and annotation datum
   */

  var update = function update(context, annotation, selectorClass) {
    var getData = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : function (d) {
      return d.annotation ? [d.annotation] : [];
    };
    var getColor = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : function (d) {
      return d.color;
    };
    var getTransform = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : 'translate(0, 0)';
    var getTransformEnter = arguments.length > 6 && arguments[6] !== undefined ? arguments[6] : 'translate(0, 0)';


    var selection = context.selection ? context.selection() : context;

    context.each(function (d) {
      var el = d3.select(this),
          data = functor(getData)(d),
          annotationSvg = el.selectAll('g.' + selectorClass).data(data),
          annotationEnter = annotationSvg.enter().append('g');

      var annotationUpdate = annotationSvg.merge(annotationEnter),
          annotationExit = annotationSvg.exit();

      annotationEnter.attr('class', selectorClass).attr('transform', function (a) {
        return functor(getTransformEnter)(d, a);
      }).style('opacity', 0);

      data.forEach(function (a) {
        a.x = 0;
        a.y = 0;
        a.color = functor(getColor)(d, a);
      });

      if (data.length && annotation) {
        annotationUpdate.selectAll('*').remove();
        annotationUpdate.call(copy(annotation).annotations(data));
      }

      // handle annotation transitions and exiting
      if (context !== selection) {
        annotationUpdate = annotationUpdate.transition(context);
        annotationExit = annotationExit.transition(context);
      }

      annotationUpdate.attr('transform', function (a) {
        return functor(getTransform)(d, a);
      }).style('opacity', 1);

      annotationExit.attr('transform', function (a) {
        return functor(getTransform)(d, a);
      }).style('opacity', 0).remove();
    });
  };

  // quick implementation of shallow object clone

  function clone(obj) {
    if (null == obj || "object" != (typeof obj === 'undefined' ? 'undefined' : _typeof(obj))) return obj;
    var copy = obj.constructor();
    for (var attr in obj) {
      if (obj.hasOwnProperty(attr)) copy[attr] = obj[attr];
    }
    return copy;
  }

  // Transform x, y, x2, y2 into d3.annotation pixel attributes and update axis annotations accordingly
  /**
   * @param {d3 transition or selection}    context             annotation container context
   * @param {d3 annotation}                 annotation          annotation generator
   * @param {accessor}                      data                annotation data array
   * @param {object}                        scales              annotation scales { x, y, x2, y2 }
   */

  var updateAnnotations = function updateAxis(context, annotation, data, scales) {

    var selection = context.selection ? context.selection() : context,
        node = selection.node(),
        preScales = node.__scales || scales;

    var getTransform = function getTransform(a, scales) {
      var x = scales[a.xType],
          y = scales[a.yType],
          xVal = a.x === Infinity ? x.range()[0] : x(a.x),
          yVal = a.y === Infinity ? y.range()[0] : y(a.y),
          x2Val = a.x2 === Infinity ? x.range()[1] : x(a.x2),
          y2Val = a.y2 === Infinity ? y.range()[1] : y(a.y2);

      return 'translate(' + [isNaN(x2Val) ? xVal : Math.min(xVal, x2Val), isNaN(y2Val) ? yVal : Math.min(yVal, y2Val)] + ')';
    };

    var getSubject = function getSubject(a, scales) {
      var subjectCopy = clone(a.data.subject) || {},
          x = scales[a.xType],
          y = scales[a.yType],
          xVal = a.x === Infinity ? x.range()[0] : x(a.x),
          yVal = a.y === Infinity ? y.range()[0] : y(a.y),
          x2Val = a.x2 === Infinity ? x.range()[1] : x(a.x2),
          y2Val = a.y2 === Infinity ? y.range()[1] : y(a.y2),
          width = a.x2 ? Math.abs(xVal - x2Val) : 0,
          height = a.y2 ? Math.abs(yVal - y2Val) : 0;

      if (a.x2 && a.y2) {
        subjectCopy.width = width;
        subjectCopy.height = height;
      } else if (a.x2) {
        subjectCopy.x1 = 0;
        subjectCopy.x2 = width;
      } else if (a.y2) {
        subjectCopy.y1 = 0;
        subjectCopy.y2 = height;
      }

      subjectCopy.dx = subjectCopy.dx * width;
      subjectCopy.dy = subjectCopy.dy * height;

      return subjectCopy;
    };

    node.__scales = {
      x: scales.x.copy(),
      y: scales.y.copy(),
      x2: scales.x2.copy(),
      y2: scales.y2.copy()
    };

    var aSvg = selection.selectAll('.d2b-axis-annotation').data(data, function (d) {
      return d.key;
    }),
        aEnter = aSvg.enter().append('g'),
        aExit = aSvg.exit();

    // clear out the annotaiton before updating in case of a change in annotation type
    aSvg.selectAll('*').remove();

    aSvg = aSvg.merge(aEnter);

    aEnter.attr('class', 'd2b-axis-annotation').attr('transform', function (a) {
      return getTransform(a, preScales);
    }).style('opacity', 0);

    if (context !== selection) {
      aSvg = aSvg.transition(context);
      aExit = aExit.transition(context);
    }

    aSvg.attr('transform', function (a) {
      return getTransform(a, scales);
    }).style('opacity', 1);

    aExit.attr('transform', function (a) {
      return getTransform(a, scales);
    }).style('opacity', 0).remove();

    aSvg.each(function (a) {
      var aCopy = clone(a.data),
          aSvg = d3.select(this),
          annotationCopy = copy(annotation);

      aCopy.x = 0;
      aCopy.y = 0;
      aCopy.color = a.color;
      aCopy.subject = getSubject(a, scales);
      aCopy.dx = (aCopy.subject.dx || 0) + (a.data.dx || 0);
      aCopy.dy = (aCopy.subject.dy || 0) + (a.data.dy || 0);

      // if transitioning, custom tween the subject contents
      if (context !== selection) {
        aSvg.transition(context).tween('annotation-tween', function () {
          var _this = this;

          var i = d3.interpolateObject(this.__subject || getSubject(a, scales), aCopy.subject);
          return function (t) {
            _this.__subject = aCopy.subject = i(t);
            aCopy.dx = (aCopy.subject.dx || 0) + (a.data.dx || 0);
            aCopy.dy = (aCopy.subject.dy || 0) + (a.data.dy || 0);
            aSvg.call(annotationCopy.annotations([aCopy]));
          };
        });
      } else {
        aSvg.call(annotationCopy.annotations([aCopy]));
      }
    });
  };

  // line svg generator
  function line$1 () {
    var $$ = {};

    function getGraphs(d, i) {
      var graphs = $$.graphs(d, i).map(function (graph, i) {
        var newGraph = {
          data: graph,
          index: i,
          align: $$.align(graph, i),
          tooltipGraph: $$.tooltipGraph(graph, i),
          shift: $$.shift(graph, i),
          stackBy: $$.stackBy(graph, i),
          key: $$.key(graph, i),
          color: $$.color(graph, i)
        };
        newGraph.values = $$.values(graph, i).map(function (point, i) {
          var newPoint = {
            data: point,
            index: i,
            graph: newGraph,
            key: $$.pkey(point, i),
            x: $$.px(point, i),
            y: $$.py(point, i),
            color: $$.pcolor(point, i) || newGraph.color,
            annotation: $$.pannotation(point, i)
          };
          // initialize y values (these will be overwritten by the stack if stacking applies)
          newPoint.y1 = newPoint.y;
          newPoint.y0 = 0;
          return newPoint;
        });
        return newGraph;
      });

      stackNest.entries(graphs).forEach(function (sg) {
        if (sg.values.length > 1) stacker(sg.values);
      });

      return graphs;
    }

    /* Update Function */
    var line = function line(context) {
      var selection = context.selection ? context.selection() : context;

      var graphs = selection.selectAll('.d2b-line-graphs').data(function (d) {
        return [d];
      });

      graphs = graphs.merge(graphs.enter().append('g').attr('class', 'd2b-line-graphs'));

      var graph = graphs.selectAll('.d2b-line-graph').data(function (d, i) {
        return getGraphs(d, i);
      }, function (d) {
        return d.key;
      });

      var graphEnter = graph.enter().append('g').attr('class', 'd2b-line-graph d2b-graph').style('opacity', 0);

      graphEnter.append('path').attr('class', 'd2b-line').style('stroke', function (d) {
        return d.color;
      }).attr('d', function (d) {
        // on entered graphs initialize with the preserved scales
        // if there are any
        var graphsNode = this.parentNode.parentNode,
            x = graphsNode.__scaleX,
            y = graphsNode.__scaleY;

        return getPath.call(this, d, x || $$.x, y || $$.y);
      });

      var graphUpdate = graph.merge(graphEnter).order(),
          graphExit = graph.exit();

      var lineUpdate = graphUpdate.select('.d2b-line');

      if (context !== selection) {
        graphUpdate = graphUpdate.transition(context);
        graphExit = graphExit.transition(context);
        lineUpdate = lineUpdate.transition(context);

        var lineExit = graphExit.style('opacity', 0).select('.d2b-line');
        var tweenD = function tweenD(d) {
          var setupTooltip = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;

          var maxX = d3.max(d.values, function (dd) {
            return dd.x;
          });
          var minX = d3.min(d.values, function (dd) {
            return dd.x;
          });
          return d3InterpolatePath.interpolatePath(this.getAttribute('d'), getPath.call(this, d, $$.x, $$.y, setupTooltip), function (a) {
            return a.x == maxX || a.x == minX;
          });
        };

        // use d3-interpolate-path if available
        if (typeof d3InterpolatePath.interpolatePath == "undefined") {
          lineExit.attr('d', function (d) {
            return getPath.call(this, d, $$.x, $$.y);
          });
          lineUpdate.attr('d', function (d) {
            return getPath.call(this, d, $$.x, $$.y, true);
          });
        } else {
          lineExit.attrTween('d', function (d) {
            return tweenD.call(this, d);
          });
          lineUpdate.attrTween('d', function (d) {
            return tweenD.call(this, d, true);
          });
        }
      } else {
        lineUpdate.attr('d', function (d) {
          return getPath.call(this, d, $$.x, $$.y, true);
        });
      }

      graphUpdate.style('opacity', 1);

      // update graph annotations
      graphUpdate.each(function (d) {
        var graphsNode = this.parentNode,
            graph = d3.select(this),
            align = d.align,
            x = graphsNode.__scaleX || $$.x,
            y = graphsNode.__scaleY || $$.y,
            annotationValues = d.values.filter(function (v) {
          return v.annotation;
        });

        var a = graph.selectAll('.d2b-line-annotation-group').data(annotationValues, function (v) {
          return v.key;
        }),
            aEnter = a.enter().append('g');

        aEnter.attr('class', 'd2b-line-annotation-group').attr('transform', function (v) {
          return 'translate(' + (x(v.x) + d.shift) + ', ' + y(v[align]) + ')';
        });

        var aUpdate = a.merge(aEnter),
            aExit = a.exit();

        if (context !== selection) {
          aUpdate = aUpdate.transition(context);
          aExit = aExit.transition(context);
        }

        aUpdate.style('opacity', 1).attr('transform', function (v) {
          return 'translate(' + ($$.x(v.x) + d.shift) + ', ' + $$.y(v[align]) + ')';
        }).call(update, $$.annotation, 'd2b-line-annotation');

        aExit.attr('transform', function (v) {
          // join the exiting annotation with the value if it still exists
          v = d.values.filter(function (ov) {
            return v.key === ov.key;
          })[0] || v;
          return 'translate(' + ($$.x(v.x) + d.shift) + ', ' + $$.y(v[align]) + ')';
        }).style('opacity', 0).remove();
      });

      graphExit.remove().selectAll('.d2b-line-annotation-group').attr('transform', function (v) {
        return 'translate(' + ($$.x(v.x) + v.graph.shift) + ', ' + $$.y(v[v.graph.align]) + ')';
      });

      lineUpdate.style('stroke', function (d) {
        return d.color;
      });

      // Make a copy of the scales sticky on the 'graphs' node
      var xCopy = $$.x.copy(),
          yCopy = $$.y.copy();

      graphs.each(function () {
        this.__scaleX = xCopy;
        this.__scaleY = yCopy;
      });

      selection.dispatch('svg-line-updated', { bubbles: true });

      return line;
    };

    var getPath = function getPath(d, x, y) {
      var setupTooltip = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;

      var shift = d.shift;
      if (shift === null) shift = x.bandwidth ? x.bandwidth() / 2 : 0;

      if (d.tooltipGraph && setupTooltip) d.tooltipGraph.data(d.values).x(function (dd) {
        return x(dd.x) + shift;
      }).y(function (dd) {
        return y(dd[d.align]);
      }).color(function (dd) {
        return dd.color;
      });

      $$.line.x(function (dd) {
        return x(dd.x) + shift;
      }).y(function (dd) {
        return y(dd[d.align]);
      });

      var path = $$.line(d.values);

      return isFinitePath(path) ? path : this.getAttribute('d');
    };

    var stacker = stack().values(function (d) {
      return d.values;
    }).y(function (d) {
      return d.y;
    }).x(function (d) {
      return d.x;
    });

    var stackNest = d3.nest().key(function (d) {
      var key = d.stackBy;
      return key !== false && key !== null ? key : d2bid();
    });

    /* Inherit from base model */
    base(line, $$).addProp('line', d3.line()).addProp('stack', stacker.stack(), null, function (d) {
      return stacker.stack(d);
    }).addProp('x', d3.scaleLinear()).addProp('y', d3.scaleLinear()).addProp('annotation', d3SvgAnnotation.annotation ? d3SvgAnnotation.annotation() : null).addPropGet('type', 'line').addPropFunctor('graphs', function (d) {
      return d;
    })
    // graph props
    .addPropFunctor('align', 'y1').addPropFunctor('tooltipGraph', function (d) {
      return d.tooltipGraph;
    }).addPropFunctor('shift', null).addPropFunctor('stackBy', null).addPropFunctor('key', function (d) {
      return d.label;
    }).addPropFunctor('values', function (d) {
      return d.values;
    }).addPropFunctor('color', function (d) {
      return color(d.label);
    })
    // points props
    .addPropFunctor('px', function (d) {
      return d.x;
    }).addPropFunctor('py', function (d) {
      return d.y;
    }).addPropFunctor('pcolor', null).addPropFunctor('pkey', function (d, i) {
      return i;
    }).addPropFunctor('pannotation', function (d) {
      return d.annotation;
    })
    // methods
    .addMethod('getComputedGraphs', function (context) {
      return (context.selection ? context.selection() : context).data().map(function (d, i) {
        return getGraphs(d, i);
      });
    }).addMethod('getVisiblePoints', function (context) {
      var data = line.getComputedGraphs(context);
      return data.map(function (graphs) {
        return [].concat.apply([], graphs.map(function (graph) {
          return graph.values.map(function (v) {
            return { x: v.x, y: v[graph.align], graph: graph };
          });
        }));
      })[0];
    });

    return line;
  }

  // line svg generator
  function area$1 () {
    var $$ = {};

    function getGraphs(d, i) {
      var graphs = $$.graphs(d, i).map(function (graph, i) {
        var newGraph = {
          data: graph,
          index: i,
          tooltipGraph: $$.tooltipGraph(graph, i),
          shift: $$.shift(graph, i),
          stackBy: $$.stackBy(graph, i),
          key: $$.key(graph, i),
          color: $$.color(graph, i)
        };
        newGraph.values = $$.values(graph, i).map(function (point, i) {
          var newPoint = {
            data: point,
            index: i,
            graph: newGraph,
            key: $$.pkey(point, i),
            x: $$.px(point, i),
            y: $$.py(point, i),
            y0: $$.py0(point, i),
            color: $$.pcolor(point, i) || newGraph.color,
            annotations: $$.pannotations(point, i)
          };
          // initialize y1 and y0 (these will be overwritten by the stack if stacking applies)
          newPoint.y1 = newPoint.y;
          newPoint.y0 = oreq(newPoint.y0, 0);

          return newPoint;
        });
        return newGraph;
      });

      stackNest.entries(graphs).forEach(function (sg) {
        if (sg.values.length > 1) stacker(sg.values);
      });

      return graphs;
    }

    /* Update Function */
    var area = function area(context) {
      var selection = context.selection ? context.selection() : context;

      var graphs = selection.selectAll('.d2b-area-graphs').data(function (d) {
        return [d];
      });

      graphs = graphs.merge(graphs.enter().append('g').attr('class', 'd2b-area-graphs'));

      var graph = graphs.selectAll('.d2b-area-graph').data(function (d, i) {
        return getGraphs(d, i);
      }, function (d) {
        return d.key;
      });

      var graphEnter = graph.enter().append('g').attr('class', 'd2b-area-graph d2b-graph').style('opacity', 0);

      graphEnter.append('path').attr('class', 'd2b-area').style('fill', function (d) {
        return d.color;
      }).attr('d', function (d) {
        // on entered graphs initialize with the preserved scales
        // if there are any
        var graphsNode = this.parentNode.parentNode,
            x = graphsNode.__scaleX,
            y = graphsNode.__scaleY;

        return getPath.call(this, d, x || $$.x, y || $$.y);
      });

      var graphUpdate = graph.merge(graphEnter).order(),
          graphExit = graph.exit();

      var areaUpdate = graphUpdate.select('.d2b-area');

      if (context !== selection) {
        graphUpdate = graphUpdate.transition(context);
        graphExit = graphExit.transition(context);
        areaUpdate = areaUpdate.transition(context);

        var areaExit = graphExit.style('opacity', 0).select('.d2b-area');
        var tweenD = function tweenD(d) {
          var setupTooltip = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;

          var maxX = d3.max(d.values, function (dd) {
            return dd.x;
          });
          var minX = d3.min(d.values, function (dd) {
            return dd.x;
          });
          return d3InterpolatePath.interpolatePath(this.getAttribute('d'), getPath.call(this, d, $$.x, $$.y, setupTooltip), function (a) {
            return a.x == maxX || a.x == minX;
          });
        };

        // use d3-interpolate-path if available
        if (typeof d3InterpolatePath.interpolatePath == "undefined") {
          areaExit.attr('d', function (d) {
            return getPath.call(this, d, $$.x, $$.y);
          });
          areaUpdate.attr('d', function (d) {
            return getPath.call(this, d, $$.x, $$.y, true);
          });
        } else {
          areaExit.attrTween('d', function (d) {
            return tweenD.call(this, d);
          });
          areaUpdate.attrTween('d', function (d) {
            return tweenD.call(this, d, true);
          });
        }
      } else {
        areaUpdate.attr('d', function (d) {
          return getPath.call(this, d, $$.x, $$.y, true);
        });
      }

      graphUpdate.style('opacity', 1);

      // update graph annotations
      graphUpdate.each(function (d) {
        var graphsNode = this.parentNode,
            graph = d3.select(this),
            x = graphsNode.__scaleX || $$.x,
            y = graphsNode.__scaleY || $$.y;

        ['y0', 'y1'].forEach(function (align) {
          var annotationValues = d.values.filter(function (v) {
            return (v.annotations || []).filter(function (a) {
              return a.location === align;
            }).length;
          });

          var a = graph.selectAll('.d2b-area-annotation-group-' + align).data(annotationValues, function (v) {
            return v.key;
          }),
              aEnter = a.enter().append('g');

          aEnter.attr('class', 'd2b-area-annotation-group-' + align).attr('transform', function (v) {
            return 'translate(' + (x(v.x) + d.shift) + ', ' + y(v[align]) + ')';
          });

          var aUpdate = a.merge(aEnter),
              aExit = a.exit();

          if (context !== selection) {
            aUpdate = aUpdate.transition(context);
            aExit = aExit.transition(context);
          }

          aUpdate.style('opacity', 1).attr('transform', function (v) {
            return 'translate(' + ($$.x(v.x) + d.shift) + ', ' + $$.y(v[align]) + ')';
          }).call(update, $$.annotation, 'd2b-area-annotation', function (v) {
            return v.annotations.filter(function (a) {
              return a.location === align;
            });
          });

          aExit.attr('transform', function (v) {
            // join the exiting annotation with the value if it still exists
            v = d.values.filter(function (ov) {
              return v.key === ov.key;
            })[0] || v;
            return 'translate(' + ($$.x(v.x) + d.shift) + ', ' + $$.y(v[align]) + ')';
          }).style('opacity', 0).remove();
        });
      });

      graphExit.remove();

      graphExit.selectAll('.d2b-area-annotation-group-y0').attr('transform', function (v) {
        return 'translate(' + ($$.x(v.x) + v.graph.shift) + ', ' + $$.y(v.y0) + ')';
      });

      graphExit.selectAll('.d2b-area-annotation-group-y1').attr('transform', function (v) {
        return 'translate(' + ($$.x(v.x) + v.graph.shift) + ', ' + $$.y(v.y1) + ')';
      });

      areaUpdate.style('fill', function (d) {
        return d.color;
      });

      // Make a copy of the scales sticky on the 'graphs' node
      var xCopy = $$.x.copy(),
          yCopy = $$.y.copy();

      graphs.each(function () {
        this.__scaleX = xCopy;
        this.__scaleY = yCopy;
      });

      selection.dispatch('svg-area-updated', { bubbles: true });

      return area;
    };

    var getPath = function getPath(d, x, y) {
      var setupTooltip = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;


      var shift = d.shift;
      if (shift === null) shift = x.bandwidth ? x.bandwidth() / 2 : 0;

      if (d.tooltipGraph && setupTooltip) d.tooltipGraph.data(d.values).x(function (p) {
        return x(p.x) + shift;
      }).y(function (p) {
        return y(p.y1);
      }).color(function (p) {
        return p.color;
      });

      $$.area.x(function (p) {
        return x(p.x) + shift;
      }).y0(function (p) {
        return y(p.y0);
      }).y1(function (p) {
        return y(p.y1);
      });

      var path = $$.area(d.values);

      return isFinitePath(path) ? path : this.getAttribute('d');
    };

    var stacker = stack().values(function (d) {
      return d.values;
    }).y(function (d) {
      return d.y;
    }).x(function (d) {
      return d.x;
    });

    var stackNest = d3.nest().key(function (d) {
      var key = d.stackBy;
      return key !== false && key !== null ? key : d2bid();
    });

    /* Inherit from base model */
    base(area, $$).addProp('area', d3.area()).addProp('stack', stacker.stack(), null, function (d) {
      return stacker.stack(d);
    }).addProp('x', d3.scaleLinear()).addProp('y', d3.scaleLinear()).addProp('annotation', d3SvgAnnotation.annotation ? d3SvgAnnotation.annotation() : null).addPropGet('type', 'area').addPropFunctor('graphs', function (d) {
      return d;
    })
    // graph props
    .addPropFunctor('tooltipGraph', function (d) {
      return d.tooltipGraph;
    }).addPropFunctor('shift', null).addPropFunctor('stackBy', null).addPropFunctor('key', function (d) {
      return d.label;
    }).addPropFunctor('values', function (d) {
      return d.values;
    }).addPropFunctor('color', function (d) {
      return color(d.label);
    })
    // points props
    .addPropFunctor('px', function (d) {
      return d.x;
    }).addPropFunctor('py', function (d) {
      return d.y;
    }).addPropFunctor('py0', function (d) {
      return d.y0;
    }).addPropFunctor('pcolor', null).addPropFunctor('pkey', function (d, i) {
      return i;
    }).addPropFunctor('pannotations', function (d) {
      return d.annotations;
    })
    // methods
    .addMethod('getComputedGraphs', function (context) {
      return (context.selection ? context.selection() : context).data().map(function (d, i) {
        return getGraphs(d, i);
      });
    }).addMethod('getVisiblePoints', function (context) {
      var data = area.getComputedGraphs(context);
      return data.map(function (graphs) {
        var y0s = [].concat.apply([], graphs.map(function (graph) {
          return graph.values.map(function (v) {
            return { x: v.x, y: v.y0, graph: graph };
          });
        }));
        var y1s = [].concat.apply([], graphs.map(function (graph) {
          return graph.values.map(function (v) {
            return { x: v.x, y: v.y1, graph: graph };
          });
        }));
        return y0s.concat(y1s);
      })[0];
    });

    return area;
  }

  // scatter svg generator
  function scatter () {
    var $$ = {};

    function getGraphs(d, i) {
      var graphs = $$.graphs(d, i).map(function (graph, i) {
        var newGraph = {
          data: graph,
          index: i,
          align: $$.align(graph, i),
          tooltipGraph: $$.tooltipGraph(graph, i),
          shift: $$.shift(graph, i),
          stackBy: $$.stackBy(graph, i),
          key: $$.key(graph, i),
          color: $$.color(graph, i),
          symbol: $$.symbol(graph, i)
        };
        newGraph.values = $$.values(graph, i).map(function (point, i) {
          var newPoint = {
            data: point,
            index: i,
            graph: newGraph,
            x: $$.px(point, i),
            y: $$.py(point, i),
            color: $$.pcolor(point, i) || newGraph.color,
            symbol: $$.psymbol(point, i) || newGraph.symbol,
            key: $$.pkey(point, i),
            size: $$.psize(point, i),
            annotation: $$.pannotation(point, i)
          };
          // initialize y values (these will be overwritten by the stack if stacking applies)
          newPoint.y1 = newPoint.y;
          newPoint.y0 = 0;
          return newPoint;
        });
        return newGraph;
      });

      stackNest.entries(graphs).forEach(function (sg) {
        if (sg.values.length > 1) stacker(sg.values);
      });

      return graphs;
    }

    /* Update Function */
    var scatter = function scatter(context) {
      var selection = context.selection ? context.selection() : context;

      var graphs = selection.selectAll('.d2b-scatter-graphs').data(function (d) {
        return [d];
      });

      graphs = graphs.merge(graphs.enter().append('g').attr('class', 'd2b-scatter-graphs'));

      var graph = graphs.selectAll('.d2b-scatter-graph').data(function (d, i) {
        return getGraphs(d, i);
      }, function (d) {
        return d.key;
      });

      var graphEnter = graph.enter().append('g').attr('class', 'd2b-scatter-graph d2b-graph').style('opacity', 0);

      var graphUpdate = graph.merge(graphEnter).order(),
          graphExit = graph.exit();

      if (context !== selection) {
        graphUpdate = graphUpdate.transition(context);
        graphExit = graphExit.transition(context);

        graphExit.style('opacity', 0)
        // points needs to be transitioned to where there new locations "would be"
        // if the graphs had been included
        .each(function (d) {
          var el = d3.select(this),
              x = $$.x,
              y = $$.y;

          var pointExit = el.selectAll('.d2b-scatter-point');

          if (context !== selection) pointExit = pointExit.transition(context);

          var shift = d.shift;
          if (shift === null) shift = x.bandwidth ? x.bandwidth() / 2 : 0;

          pointExit.style('opacity', 0).call(pointTransform, x, y, shift, d.align).remove();
        });
      }

      graphUpdate.style('opacity', 1);

      graphExit.remove();

      graphUpdate.each(function (d) {
        var el = d3.select(this),
            x = $$.x,
            y = $$.y,
            graphsNode = this.parentNode,
            preX = graphsNode.__scaleX || x,
            preY = graphsNode.__scaleY || y;

        var shift = d.shift;
        if (shift === null) shift = x.bandwidth ? x.bandwidth() / 2 : 0;

        var preShift = shift;
        if (preShift === null) shift = preX.bandwidth ? preX.bandwidth() / 2 : 0;

        if (d.tooltipGraph) d.tooltipGraph.data(d.values).x(function (p) {
          return x(p.x) + shift;
        }).y(function (p) {
          return y(p.y);
        }).color(function (p) {
          return p.color;
        });

        $$.point.fill(function (p) {
          return p.color;
        }).type(function (p) {
          return p.symbol;
        }).size(function (p) {
          return p.size;
        });

        var point = el.selectAll('.d2b-scatter-point').data(d.values, function (p) {
          return p.key;
        });
        var pointEnter = point.enter().append('g').attr('class', 'd2b-scatter-point');

        var pointUpdate = point.merge(pointEnter).order(),
            pointExit = point.exit();

        // define transitions if the parent context was a transition
        if (context !== selection) {
          pointUpdate = pointUpdate.transition(context);
          pointExit = pointExit.transition(context);
        }

        // if band scale is used enter points at their new location
        if (preX.bandwidth || preY.bandwidth || x.bandwidth || y.bandwidth) {
          pointEnter.call(pointTransform, x, y, shift, d.align);
        } else {
          pointEnter.call(pointTransform, preX, preY, preShift, d.align);
        }

        // enter update exit point configuration
        pointEnter.style('opacity', 0);

        pointUpdate.style('opacity', 1).call($$.point).call(pointTransform, x, y, shift, d.align);

        pointExit.style('opacity', 0).call(pointTransform, x, y, shift, d.align).remove();

        // update annotations
        update(pointUpdate, $$.annotation, 'd2b-scatter-annotation');
      });

      // Make a copy of the scales sticky on the 'graphs' node
      graphs.each(function () {
        this.__scaleX = $$.x.copy();
        this.__scaleY = $$.y.copy();
      });

      selection.dispatch('svg-scatter-updated', { bubbles: true });

      return scatter;
    };

    function pointTransform(transition, x, y, shift, align) {
      transition.attr('transform', function (p) {
        var yPos = y(p[align]),
            xPos = x(p.x) + shift;
        return isFinite(xPos) && isFinite(yPos) ? 'translate(' + [xPos, yPos] + ')' : this.getAttribute('transform');
      });
    }

    var stacker = stack().values(function (d) {
      return d.values;
    }).y(function (d) {
      return d.y;
    }).x(function (d) {
      return d.x;
    });

    var stackNest = d3.nest().key(function (d) {
      var key = d.stackBy;
      return key !== false && key !== null ? key : d2bid();
    });

    /* Inherit from base model */
    base(scatter, $$).addProp('point', point().active(true)).addProp('stack', stacker.stack(), null, function (d) {
      return stacker.stack(d);
    }).addProp('x', d3.scaleLinear()).addProp('y', d3.scaleLinear()).addProp('annotation', d3SvgAnnotation.annotation ? d3SvgAnnotation.annotation() : null).addPropGet('type', 'scatter').addPropFunctor('graphs', function (d) {
      return d;
    })
    // graph props
    .addPropFunctor('align', 'y1').addPropFunctor('tooltipGraph', function (d) {
      return d.tooltipGraph;
    }).addPropFunctor('shift', null).addPropFunctor('stackBy', null).addPropFunctor('key', function (d) {
      return d.label;
    }).addPropFunctor('values', function (d) {
      return d.values;
    }).addPropFunctor('color', function (d) {
      return color(d.label);
    }).addPropFunctor('symbol', function () {
      return d3.symbolCircle;
    })
    // points props
    .addPropFunctor('px', function (d) {
      return d.x;
    }).addPropFunctor('py', function (d) {
      return d.y;
    }).addPropFunctor('pcolor', null).addPropFunctor('psymbol', null).addPropFunctor('pkey', function (d, i) {
      return i;
    }).addPropFunctor('psize', 25).addPropFunctor('pannotation', function (d) {
      return d.annotation;
    })
    // methods
    .addMethod('getComputedGraphs', function (context) {
      return (context.selection ? context.selection() : context).data().map(function (d, i) {
        return getGraphs(d, i);
      });
    }).addMethod('getVisiblePoints', function (context) {
      var data = scatter.getComputedGraphs(context);
      return data.map(function (graphs) {
        return [].concat.apply([], graphs.map(function (graph) {
          return graph.values.map(function (v) {
            return { x: v.x, y: v[graph.align], graph: graph };
          });
        }));
      })[0];
    });

    return scatter;
  }

  // bar svg generator
  function bar () {
    var $$ = {};

    function getOrientMap(orient) {
      return orient === 'horizontal' ? { rotate: true, px: 'py', py: 'px', x: 'y', y: 'x', w: 'height', h: 'width' } : { rotate: false, px: 'px', py: 'py', x: 'x', y: 'y', w: 'width', h: 'height' };
    }

    function getGraphs(d, i) {
      var orientMap = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : getOrientMap($$.orient(d, i));


      var graphs = $$.graphs(d, i).map(function (graph, i) {

        var newGraph = {
          data: graph,
          index: i,
          tooltipGraph: $$.tooltipGraph(graph, i),
          shift: $$.shift(graph, i),
          stackBy: $$.stackBy(graph, i),
          key: $$.key(graph, i),
          color: $$.color(graph, i)
        };
        newGraph.values = $$.values(graph, i).map(function (point, i) {
          return {
            data: point,
            index: i,
            graph: newGraph,
            key: $$.pkey(point, i),
            x: $$.px(point, i),
            y: $$.py(point, i),
            centered: $$.pcentered(point, i),
            color: $$.pcolor(point, i) || newGraph.color,
            annotation: $$.pannotation(point, i)
          };
        });
        return newGraph;
      });

      stacker.x(function (d) {
        return d[orientMap.x];
      }).y(function (d) {
        return d[orientMap.y];
      });
      stackNest.entries(graphs).forEach(function (sg, si) {
        return stacker.out(buildOut(si))(sg.values);
      });

      modifyBaseline(graphs, $$.baseline(d, i, [].concat.apply([], graphs.map(function (g) {
        return g.values.map(function (v) {
          return v.extent[1];
        });
      }))));

      return graphs;
    }

    /* Update Function */
    var bar = function bar(context) {
      var selection = context.selection ? context.selection() : context;

      var scales = { x: $$.x, y: $$.y };
      // iterate through each selection element
      selection.each(function (d, i) {
        var orient = $$.orient(d, i),
            orientMap = getOrientMap(orient),
            graphs = getGraphs(d, i, orientMap),
            x = scales[orientMap.x].copy(),
            _y = scales[orientMap.y].copy();

        var padding = $$.padding(d, i),
            groupPadding = $$.groupPadding(d, i),
            bandwidth = $$.bandwidth(d, i);

        bandwidth = (1 - padding) * oreq(bandwidth || getBandwidth(x, graphs, orientMap));

        var stacking = stackNest.entries(graphs);

        var barWidth = bandwidth / Math.max(1, stacking.length);

        groupPadding = barWidth * groupPadding;

        // get custom scales
        var base = getBaseScale(x, bandwidth, barWidth, groupPadding),
            extent = getExtentScale(_y);

        barWidth -= groupPadding * 2;

        var graphsSVG = d3.select(this).selectAll('.d2b-bar-graphs').data(function (d) {
          return [d];
        });

        graphsSVG = graphsSVG.merge(graphsSVG.enter().append('g').attr('class', 'd2b-bar-graphs'));

        var graphsNode = graphsSVG.node(),
            preBase = graphsNode.__scaleBase || base,
            preY = graphsNode.__scaleY || _y,
            preX = graphsNode.__scaleX || x,
            preBarWidth = graphsNode.__barWidth || barWidth;

        var graph = graphsSVG.selectAll('.d2b-bar-graph').data(graphs.slice().reverse(), function (d) {
          return d.key;
        });

        var graphEnter = graph.enter().append('g').attr('class', 'd2b-bar-graph d2b-graph');

        var graphUpdate = graph.merge(graphEnter).order(),
            graphExit = graph.exit();

        if (context !== selection) {
          graphUpdate = graphUpdate.transition(context);
          graphExit = graphExit.transition(context);

          graphExit.each(function (d) {
            var shift = d.shift;
            if (shift === null) shift = x.bandwidth ? x.bandwidth() / 2 : 0;

            var barExit = d3.select(this).selectAll('.d2b-bar-group').transition(context);

            if (preX.bandwidth || preY.bandwidth || x.bandwidth || _y.bandwidth) {
              // exit
              barExit.style('opacity', 0);
            } else {
              // exit
              barExit.call(updateBars, {
                opacity: 0,
                x: function x(point) {
                  return base(point, shift);
                },
                y: function y() {
                  return _y(0);
                },
                width: barWidth,
                height: function height() {
                  return 0;
                },
                graph: d,
                orientMap: orientMap
              });
            }
          });
        }

        graphExit.remove();

        // iterate through graph containers
        graphUpdate.each(function (d) {
          var graph = d3.select(this);

          var shift = d.shift;
          if (shift === null) shift = x.bandwidth ? x.bandwidth() / 2 : 0;

          // enter update exit bars
          var bar = graph.selectAll('.d2b-bar-group').data(d.values, function (v) {
            return v.key;
          });
          var barEnter = bar.enter().append('g').attr('class', 'd2b-bar-group');
          barEnter.append('rect');
          barEnter.append('g').attr('class', 'd2b-bar-annotation-group');
          var barUpdate = bar.merge(barEnter).order(),
              barExit = bar.exit();

          if (d.tooltipGraph) d.tooltipGraph.data(d.values)[orientMap.x](function (point) {
            return x(point.base) + shift;
          })[orientMap.y](function (point) {
            return extent(point)[1];
          }).color(function (point) {
            return point.color;
          });

          if (context !== selection) {
            barUpdate = barUpdate.transition(context);
            barExit = barExit.transition(context);
          }

          barEnter.attr('class', 'd2b-bar-group');

          barExit.remove();

          if (preX.bandwidth || preY.bandwidth || x.bandwidth || _y.bandwidth) {

            // enter
            barEnter.call(updateBars, {
              opacity: 0,
              x: function x(point) {
                return base(point, shift);
              },
              y: function y() {
                return _y(0);
              },
              width: preBarWidth,
              height: function height() {
                return 0;
              },
              graph: d,
              orientMap: orientMap
            });

            // exit
            barExit.style('opacity', 0);
          } else {

            // enter
            barEnter.call(updateBars, {
              opacity: 0,
              x: function x(point) {
                return preBase(point, shift);
              },
              y: function y() {
                return preY(0);
              },
              width: preBarWidth,
              height: function height() {
                return 0;
              },
              graph: d,
              orientMap: orientMap
            });

            // exit
            barExit.call(updateBars, {
              opacity: 0,
              x: function x(point) {
                return base(point, shift);
              },
              y: function y() {
                return _y(0);
              },
              width: barWidth,
              height: function height() {
                return 0;
              },
              graph: d,
              orientMap: orientMap
            });
          }

          // update
          barUpdate.call(updateBars, {
            opacity: 1,
            x: function x(point) {
              return base(point, shift);
            },
            y: function y(point) {
              return extent.sorted(point)[0];
            },
            width: barWidth,
            height: function height(d) {
              return extent.sorted(d)[1] - extent.sorted(d)[0];
            },
            graph: d,
            orientMap: orientMap
          });
        });

        // Make a copy of the scales sticky on the 'graphs' node
        graphsNode.__scaleY = _y;
        graphsNode.__scaleX = x;
        graphsNode.__scaleBase = base;
        graphsNode.__barWidth = barWidth;
      });

      selection.dispatch('svg-bar-updated', { bubbles: true });

      return bar;
    };

    var stacker = stack().values(function (d) {
      return d.values;
    });

    var stackNest = d3.nest().key(function (d) {
      return d.stackBy;
    });

    // custom stacker build out that separates the negative and possitive bars
    function buildOut(stackIndex) {
      var offsets = {};
      return function (d, y0, y1, x) {
        var offset = offsets[x] = offsets[x] || [0, 0];

        d.dy = y1 - y0;
        d.stackIndex = stackIndex;
        d.base = x;
        if (d.dy > 0) d.extent = [offset[0], offset[0] += d.dy];else d.extent = [offset[1], offset[1] += d.dy];
      };
    }

    function updateBars(bars, options) {
      bars.style('opacity', options.opacity).call(transformBar, options).select('rect').attr('fill', function (point) {
        return point.color;
      }).attr(options.orientMap.w, options.width).attr(options.orientMap.h, options.height);

      bars.select('.d2b-bar-annotation-group').call(transformAnnotationGroup, options).call(update, $$.annotation, 'd2b-bar-annotation');
    }

    // transform bar position
    function transformBar(transition, options) {
      transition.attr('transform', function (d) {
        var xPos = options[options.orientMap.x](d),
            yPos = options[options.orientMap.y](d);
        return 'translate(' + [xPos, yPos] + ')';
      });
    }

    // transform annotation group position
    function transformAnnotationGroup(transition, options) {
      transition.attr('transform', function (d) {
        var pos = { x: options.width / 2, y: d.extent[0] < d.extent[1] ? 0 : options.height(d) };
        return 'translate(' + [pos[options.orientMap.x], pos[options.orientMap.y]] + ')';
      });
    }

    function getBaseScale(x, bandwidth, barWidth, groupPadding) {
      return function (point, shift) {
        var barShift = point.centered ? shift - bandwidth / 4 : shift - bandwidth / 2 + point.stackIndex * barWidth + groupPadding;
        return x(point.base) + barShift;
      };
    }

    function getExtentScale(y) {
      var scale = function scale(point) {
        return [y(point.extent[0]), y(point.extent[1])];
      };

      scale.sorted = function (point) {
        return scale(point).slice().sort(d3.ascending);
      };

      return scale;
    }

    // find closes non equal point pixel distance on the base axis
    function getBandwidth(x, graphs, orientMap) {
      var xVals = [],
          bandwidth = Infinity;
      graphs.forEach(function (graph) {
        var values = graph.values,
            range = x.range();

        bandwidth = Math.min(bandwidth, Math.abs(range[1] - range[0]));

        values.forEach(function (point) {
          xVals.push(x(point[orientMap.x]));
        });
      });

      xVals.sort(d3.ascending);

      for (var i = 0; i < xVals.length - 1; i++) {
        if (xVals[i + 1] === xVals[i]) continue;
        bandwidth = Math.min(xVals[i + 1] - xVals[i], bandwidth);
      }

      return bandwidth === Infinity ? 0 : bandwidth;
    }

    function modifyBaseline(graphs, baseline) {
      // if baseline is null find it dynamically
      if (baseline === null) {
        var values = [].concat.apply([], graphs.map(function (d) {
          return d.values;
        }));
        var range = d3.extent(values.map(function (d) {
          return d.extent[1];
        }));

        if (range[1] < 0) baseline = range[1];else if (range[0] > 0) baseline = range[0];else baseline = 0;
      }

      graphs.forEach(function (graph) {
        graph.values.forEach(function (value) {
          if (Math.abs(value.extent[0]) < Math.abs(baseline)) {
            value.extent[0] = baseline;
          }
        });
      });
    }

    /* Inherit from base model */
    base(bar, $$).addProp('x', d3.scaleLinear()).addProp('y', d3.scaleLinear()).addProp('annotation', d3SvgAnnotation.annotation ? d3SvgAnnotation.annotation() : null).addPropGet('type', 'bar').addPropFunctor('graphs', function (d) {
      return d;
    }).addPropFunctor('padding', 0.5).addPropFunctor('groupPadding', 0).addPropFunctor('bandwidth', null).addPropFunctor('baseline', 0)
    // graph props
    .addPropFunctor('tooltipGraph', function (d) {
      return d.tooltipGraph;
    }).addPropFunctor('orient', 'vertical').addPropFunctor('shift', null).addPropFunctor('stackBy', function (d, i) {
      return i;
    }).addPropFunctor('key', function (d) {
      return d.label;
    }).addPropFunctor('values', function (d) {
      return d.values;
    }, null).addPropFunctor('color', function (d) {
      return color(d.label);
    })
    // point props
    .addPropFunctor('px', function (d) {
      return d.x;
    }).addPropFunctor('py', function (d) {
      return d.y;
    }).addPropFunctor('pcentered', false).addPropFunctor('pcolor', null).addPropFunctor('pkey', function (d, i) {
      return i;
    }).addPropFunctor('pannotation', function (d) {
      return d.annotation;
    })
    // methods
    .addMethod('getComputedGraphs', function (context) {
      return (context.selection ? context.selection() : context).data().map(function (d, i) {
        return getGraphs(d, i);
      });
    }).addMethod('getVisiblePoints', function (context) {
      return (context.selection ? context.selection() : context).data().map(function (d, i) {
        var orient = $$.orient(d, i),
            orientMap = getOrientMap(orient),
            graphs = getGraphs(d, i, orientMap);

        var extent0 = [].concat.apply([], graphs.map(function (graph) {
          return graph.values.map(function (v) {
            var point = {};
            point['' + orientMap.x] = v.base;
            point['' + orientMap.y] = v.extent[0];
            point.graph = graph;
            return point;
          });
        }));
        var extent1 = [].concat.apply([], graphs.map(function (graph) {
          return graph.values.map(function (v) {
            var point = {};
            point['' + orientMap.x] = v.base;
            point['' + orientMap.y] = v.extent[1];
            point.graph = graph;
            return point;
          });
        }));

        return extent0.concat(extent1);
      })[0];
    });

    return bar;
  }

  //original stacking function, might revert to this one instead of d3 stack layout in the future
  // // create stack layout based on $$.stack key accessor
  // const stacking = stackNest.entries(data);
  // const bandwidth = (1 - $$.padding.call(this, data, i)) * ($$.bandwidth.call(this, data, i) || getBandwidth(data, orient));
  // const barWidth = bandwidth / stacking.length;
  // const groupPadding = barWidth * $$.groupPadding.call(this, data, i);
  //
  // stacking.forEach((stack, stackIndex) => {
  //   // group values in this stack by positive 'sp' and negative 'sn' values
  //   const sp = {}, sn = {};
  //
  //   stack.values.forEach((graph, graphIndex) => {
  //     graphIndex = data.indexOf(graph);
  //     const values = $$.values.call(data, graph, graphIndex),
  //           x = $$[orient.x].call(data, graph, graphIndex),
  //           y = $$[orient.y].call(data, graph, graphIndex),
  //           offset = $$.offset.call(data, graph, graphIndex) || (x.rangeBand)? x.rangeBand() / 2 : 0;
  //     values.forEach((d, i) => {
  //       const px = $$[orient.px].call(graph, d, i),
  //             py = $$[orient.py].call(graph, d, i),
  //             barOffset = offset - bandwidth / 2 + stackIndex * barWidth + groupPadding;
  //
  //       d.base = x(px) + barOffset;
  //       if (py > 0) d.extent = [y(sp[px] = sp[px] || 0), y(sp[px] = sp[px] + py)];
  //       else d.extent = [y(sn[px] = sn[px] || 0), y(sn[px] = sn[px] + py)];
  //       d.extent.sort(d3.ascending);
  //     });
  //   });
  // });

  // creates a box and whisker set for box plots

  // box svg generator
  function box () {
    var $$ = {};

    /* Update Function */
    var box = function box(context) {
      var selection = context.selection ? context.selection() : context,
          scale = $$.scale,
          enterScale = $$.enterScale || scale,
          valueFormat = $$.valueFormat,
          vertical = $$.orient === 'vertical',
          orient = vertical ? { x: 'x', y: 'y', x1: 'x1', x2: 'x2', y1: 'y1', y2: 'y2', width: 'width', height: 'height', cx: 'cx', cy: 'cy', translate: function translate(x, y) {
          return 'translate(' + x + ', ' + y + ')';
        } } : { x: 'y', y: 'x', x1: 'y1', x2: 'y2', y1: 'x1', y2: 'x2', width: 'height', height: 'width', cx: 'cy', cy: 'cx', translate: function translate(x, y) {
          return 'translate(' + y + ', ' + x + ')';
        } };

      // setup box-group and extract all necessary properties
      var group = selection.selectAll('.d2b-box').data(function (d, i) {
        d = $$.data(d, i);

        var outliers = $$.outliers(d, i) || [],
            minimum = $$.minimum(d, i),
            maximum = $$.maximum(d, i);

        return [{
          data: d,
          index: i,
          median: $$.median(d, i),
          upperQuartile: $$.upperQuartile(d, i),
          lowerQuartile: $$.lowerQuartile(d, i),
          minimum: minimum,
          maximum: maximum,
          outliers: outliers,
          maxOutliers: outliers.filter(function (d) {
            return d > maximum;
          }),
          minOutliers: outliers.filter(function (d) {
            return d < minimum;
          }),
          color: $$.color(d, i),
          width: $$.width(d, i),
          annotations: $$.annotations(d, i)
        }];
      });
      var groupEnter = group.enter().append('g').attr('class', 'd2b-box');
      var groupUpdate = group.merge(groupEnter).order();

      // setup box-center
      var center = groupUpdate.selectAll('.d2b-box-center').data(function (d) {
        return [d];
      });
      var centerEnter = center.enter().append('line').attr(orient.x1, 0).attr(orient.x2, 0).attr(orient.y1, function (d) {
        return enterScale(d.minimum);
      }).attr(orient.y2, function (d) {
        return enterScale(d.maximum);
      }).attr('class', 'd2b-box-center');
      var centerUpdate = center.merge(centerEnter);

      // setup box-rect
      var rect = groupUpdate.selectAll('.d2b-box-rect').data(function (d) {
        return [d];
      });
      var rectEnter = rect.enter().append('rect').attr('class', 'd2b-box-rect').attr(orient.width, function (d) {
        return d.width;
      }).attr(orient.height, function (d) {
        return Math.abs(enterScale(d.upperQuartile) - enterScale(d.lowerQuartile));
      }).attr(orient.x, function (d) {
        return -d.width / 2;
      }).attr(orient.y, function (d) {
        return Math.min(enterScale(d.upperQuartile), enterScale(d.lowerQuartile));
      });
      var rectUpdate = rect.merge(rectEnter);

      // enter, update, exit all outliers
      ['max', 'min'].forEach(function (outlierType) {
        var outlier = groupUpdate.selectAll('.d2b-box-' + outlierType + '-outlier').data(function (d) {
          return d[outlierType + 'Outliers'].map(function (o) {
            return {
              outlier: o,
              box: d
            };
          });
        });
        var outlierEnter = outlier.enter().append('circle').style('opacity', 0).attr('r', function (d) {
          return d.box.width / 5;
        }).attr(orient.cx, 0).attr(orient.cy, function (d) {
          return enterScale(d.outlier);
        }).attr('class', 'd2b-box-outlier d2b-box-' + outlierType + '-outlier');
        var outlierUpdate = outlier.merge(outlierEnter),
            outlierExit = outlier.exit();

        if (context !== selection) {
          outlierUpdate = outlierUpdate.transition(context);
          outlierExit = outlierExit.transition(context);
        }

        outlierUpdate.style('opacity', 1).attr('stroke', function (d) {
          return d.box.color;
        }).attr('r', function (d) {
          return d.box.width / 5;
        }).attr(orient.cx, 0).attr(orient.cy, function (d) {
          return scale(d.outlier);
        });

        outlierExit.attr(orient.cx, 0).attr(orient.cy, function (d) {
          return scale(d.outlier);
        }).style('opacity', 0).remove();
      });

      // enter, update all dashes
      ['maximum', 'median', 'minimum'].forEach(function (dashType) {
        var dash = groupUpdate.selectAll('.d2b-box-dash-' + dashType).data(function (d) {
          return [d];
        });
        var dashEnter = dash.enter().append('line').attr('class', 'd2b-box-dash d2b-box-dash-' + dashType).attr(orient.x1, function (d) {
          return -d.width / 2;
        }).attr(orient.x2, function (d) {
          return d.width / 2;
        }).attr(orient.y1, function (d) {
          return enterScale(d[dashType]);
        }).attr(orient.y2, function (d) {
          return enterScale(d[dashType]);
        });
        var dashUpdate = dash.merge(dashEnter);

        if (context !== selection) dashUpdate = dashUpdate.transition(context);

        dashUpdate.attr('stroke', function (d) {
          return d.color;
        }).attr(orient.x1, function (d) {
          return -d.width / 2;
        }).attr(orient.x2, function (d) {
          return d.width / 2;
        }).attr(orient.y1, function (d) {
          return scale(d[dashType]);
        }).attr(orient.y2, function (d) {
          return scale(d[dashType]);
        });
      });

      // enter, update all labels and annotations
      ['maximum', 'upperQuartile', 'median', 'lowerQuartile', 'minimum'].forEach(function (textType, i) {
        var label = groupUpdate.selectAll('.d2b-box-label-group-' + textType).data(function (d) {
          return [d];
        });
        var labelEnter = label.enter().append('g').attr('class', 'd2b-box-label-group d2b-box-label-group-' + textType).attr('transform', function (d) {
          return orient.translate(0, enterScale(d[textType]));
        });

        labelEnter.append('text').attr('class', 'd2b-box-label').attr(orient.x, function (d) {
          return (3 + d.width / 2) * (i % 2 === 0 ? 1 : -1);
        }).style('text-anchor', i % 2 === 0 ? 'start' : 'end');

        var labelUpdate = label.merge(labelEnter);

        if (context !== selection) labelUpdate = labelUpdate.transition(context);

        labelUpdate.attr('transform', function (d) {
          return orient.translate(0, scale(d[textType]));
        }).call(update, $$.annotation, 'd2b-box-annotation', function (d) {
          return (d.annotations || []).filter(function (a) {
            return a.location === textType;
          });
        });

        var labelText = labelUpdate.select('.d2b-box-label').text(function (d) {
          return valueFormat(d[textType]);
        });

        if (vertical) {
          labelText.select().style('text-anchor', i % 2 === 0 ? 'start' : 'end').style('dominant-baseline', 'middle').attr(orient.x, function (d) {
            return (3 + d.width / 2) * (i % 2 === 0 ? 1 : -1);
          });
        } else {
          labelText.style('text-anchor', 'middle').style('dominant-baseline', i % 2 === 0 ? 'baseline' : 'hanging').attr(orient.x, function (d) {
            return (3 + d.width / 2) * (i % 2 === 0 ? -1 : 1);
          });
        }
      });

      if (context !== selection) {
        rectUpdate = rectUpdate.transition(context);
        centerUpdate = centerUpdate.transition(context);
      }

      rectUpdate.attr(orient.x, function (d) {
        return -d.width / 2;
      }).attr(orient.y, function (d) {
        return Math.min(scale(d.upperQuartile), scale(d.lowerQuartile));
      }).attr(orient.width, function (d) {
        return d.width;
      }).attr(orient.height, function (d) {
        return Math.abs(scale(d.upperQuartile) - scale(d.lowerQuartile));
      }).attr('stroke', function (d) {
        return d.color;
      });

      centerUpdate.attr(orient.x1, 0).attr(orient.x2, 0).attr(orient.y1, function (d) {
        return scale(d.minimum);
      }).attr(orient.y2, function (d) {
        return scale(d.maximum);
      }).attr('stroke', function (d) {
        return d.color;
      });

      selection.dispatch('box-updated', { bubbles: true });

      return box;
    };

    /* Inherit from base model */
    base(box, $$).addProp('scale', d3.scaleLinear()).addProp('enterScale', null).addProp('valueFormat', d3.format(',')).addProp('orient', 'vertical').addProp('annotation', d3SvgAnnotation.annotation ? d3SvgAnnotation.annotation() : null).addPropFunctor('data', function (d) {
      return d;
    }).addPropFunctor('median', function (d) {
      return d.median;
    }).addPropFunctor('upperQuartile', function (d) {
      return d.upperQuartile;
    }).addPropFunctor('lowerQuartile', function (d) {
      return d.lowerQuartile;
    }).addPropFunctor('minimum', function (d) {
      return d.minimum;
    }).addPropFunctor('maximum', function (d) {
      return d.maximum;
    }).addPropFunctor('outliers', function (d) {
      return d.outliers;
    }).addPropFunctor('width', 20).addPropFunctor('color', 'steelblue').addPropFunctor('annotations', function (d) {
      return d.annotations;
    });

    return box;
  }

  // import id from '../util/id';

  // box-plot svg generator
  function boxPlot () {
    var $$ = {};

    function getGraphs(d, i) {
      var graphs = $$.graphs(d, i).map(function (graph, i) {
        var newGraph = {
          data: graph,
          index: i,
          tooltipGraph: $$.tooltipGraph(graph, i),
          shift: $$.shift(graph, i),
          key: $$.key(graph, i),
          color: $$.color(graph, i),
          orient: $$.orient(graph, i)
        };

        newGraph.values = $$.values(graph, i).map(function (point, i) {
          return {
            data: point,
            index: i,
            graph: newGraph,
            x: $$.px(point, i),
            y: $$.py(point, i),
            annotations: $$.pannotations(point, i),
            median: $$.box.median()(point, i)
          };
        });
        return newGraph;
      });

      return graphs;
    }

    /* Update Function */
    var boxPlot = function boxPlot(context) {
      var selection = context.selection ? context.selection() : context;

      var graphs = selection.selectAll('.d2b-box-plot-graphs').data(function (d) {
        return [d];
      });

      graphs = graphs.merge(graphs.enter().append('g').attr('class', 'd2b-box-plot-graphs'));

      var graph = graphs.selectAll('.d2b-box-plot-graph').data(function (d, i) {
        return getGraphs(d, i);
      }, function (d) {
        return d.key;
      });

      var graphEnter = graph.enter().append('g').attr('class', 'd2b-box-plot-graph d2b-graph').style('opacity', 0);

      var graphUpdate = graph.merge(graphEnter).order(),
          graphExit = graph.exit();

      $$.box.data(function (p) {
        return p.data;
      }).annotation($$.annotation).annotations($$.pannotations);

      if (context !== selection) {
        graphUpdate = graphUpdate.transition(context);
        graphExit = graphExit.transition(context);

        graphExit.style('opacity', 0)
        // boxes needs to be transitioned to where their new locations
        // "would be" if the graphs had been included
        .each(function (d) {
          var el = d3.select(this),
              vertical = d.orient === 'vertical',
              orient = vertical ? { x: 'x', y: 'y' } : { x: 'y', y: 'x' },
              x = $$[orient.x],
              y = $$[orient.y];

          $$.box.scale(y).orient(d.orient).color(function (p, i) {
            return $$.pcolor(p, i) || d.color;
          });

          var boxSvgExit = el.selectAll('.d2b-box-plot-box');

          if (context !== selection) boxSvgExit = boxSvgExit.transition(context);

          var shift = d.shift;
          if (shift === null) shift = x.bandwidth ? x.bandwidth() / 2 : 0;

          boxSvgExit.style('opacity', 0).attr('transform', function (p) {
            return translateBox(x(p[orient.x]) + shift, vertical);
          }).call($$.box).remove();
        });
      }

      graphUpdate.style('opacity', 1);

      graphExit.remove();

      graphUpdate.each(function (d) {
        var el = d3.select(this),
            vertical = d.orient === 'vertical',
            orient = vertical ? { x: 'x', y: 'y' } : { x: 'y', y: 'x' },
            x = $$[orient.x],
            y = $$[orient.y],
            graphsNode = this.parentNode,
            preScales = { x: graphsNode.__scaleX || x, y: graphsNode.__scaleY || y },
            preX = preScales[orient.x],
            preY = preScales[orient.y];

        var shift = d.shift;
        if (shift === null) shift = x.bandwidth ? x.bandwidth() / 2 : 0;

        var preShift = shift;
        if (preShift === null) shift = preX.bandwidth ? preX.bandwidth() / 2 : 0;

        if (d.tooltipGraph) d.tooltipGraph.data(d.values)[orient.x](function (p) {
          return x(p[orient.x]) + shift;
        })[orient.y](function (p) {
          return y(p.median);
        }).color(function (p, i) {
          return $$.pcolor(p.data, i) || d.color;
        });

        $$.box.scale(y).enterScale(preY).orient(d.orient).color(function (p, i) {
          return $$.pcolor(p, i) || d.color;
        });

        var boxSvg = el.selectAll('.d2b-box-plot-box').data(d.values, $$.pkey);
        var boxSvgEnter = boxSvg.enter().append('g').attr('class', 'd2b-box-plot-box');

        var boxSvgUpdate = boxSvg.merge(boxSvgEnter).order(),
            boxSvgExit = boxSvg.exit();

        if (context !== selection) {
          boxSvgUpdate = boxSvgUpdate.transition(context);
          boxSvgExit = boxSvgExit.transition(context);
        }

        // if band scale is used enter boxes at their new location
        if (preX.bandwidth || preY.bandwidth || x.bandwidth || y.bandwidth) {
          $$.box.enterScale(y);
          boxSvgEnter.attr('transform', function (p) {
            return translateBox(x(p[orient.x]) + shift, vertical);
          });
        } else {
          $$.box.enterScale(preY);
          boxSvgEnter.attr('transform', function (p) {
            return translateBox(preX(p[orient.x]) + shift, vertical);
          });
        }

        boxSvgEnter.style('opacity', 0);

        boxSvgUpdate.attr('transform', function (p) {
          return translateBox(x(p[orient.x]) + shift, vertical);
        }).style('opacity', 1).call($$.box);

        boxSvgExit.attr('transform', function (p) {
          return translateBox(x(p[orient.x]) + shift, vertical);
        }).style('opacity', 0).call($$.box).remove();
      });

      graphs.each(function () {
        this.__scaleX = $$.x.copy();
        this.__scaleY = $$.y.copy();
      });

      selection.dispatch('svg-box-updated', { bubbles: true });

      return boxPlot;
    };

    function translateBox(position, vertical) {
      return 'translate(' + (vertical ? [position, 0] : [0, position]) + ')';
    }

    /* Inherit from base model */
    base(boxPlot, $$).addProp('x', d3.scaleLinear()).addProp('y', d3.scaleLinear()).addProp('box', box()).addProp('annotation', d3SvgAnnotation.annotation ? d3SvgAnnotation.annotation() : null).addPropGet('type', 'boxPlot').addPropFunctor('graphs', function (d) {
      return d;
    })
    // graph props
    .addPropFunctor('tooltipGraph', function (d) {
      return d.tooltipGraph;
    }).addPropFunctor('shift', null).addPropFunctor('key', function (d) {
      return d.label;
    }).addPropFunctor('values', function (d) {
      return d.values;
    }).addPropFunctor('color', function (d) {
      return color(d.label);
    }).addPropFunctor('orient', 'vertical')
    // points props
    .addPropFunctor('px', function (d) {
      return d.x;
    }).addPropFunctor('py', function (d) {
      return d.y;
    }).addPropFunctor('pcolor', null).addPropFunctor('pkey', function (d, i) {
      return i;
    }).addPropFunctor('pannotations', function (d) {
      return d.annotations;
    })
    // methods
    .addMethod('getComputedGraphs', function (context) {
      return (context.selection ? context.selection() : context).data().map(function (d, i) {
        return getGraphs(d, i);
      });
    }).addMethod('getVisiblePoints', function (context) {
      var data = boxPlot.getComputedGraphs(context),
          points = [];
      data.forEach(function (graphs) {
        graphs.forEach(function (graph) {
          graph.values.forEach(function (v, i) {
            ['maximum', 'minimum', 'upperQuartile', 'lowerQuartile', 'median'].forEach(function (metric) {
              points.push({ x: v.x, y: $$.box[metric]()(v.data, i), graph: graph });
            });

            ($$.box.outliers()(v.data, i) || []).forEach(function (outlier) {
              points.push({ x: v.x, y: outlier, graph: graph });
            });
          });
        });
      });

      return points;
    });

    return boxPlot;
  }

  // bubble pack svg generator
  function bubblePack () {
    var $$ = {};

    var indicatorSymbol = d3.symbol().size(80);

    function getPoint(point, i, graph) {
      return {
        data: point,
        index: i,
        graph: graph,
        x: $$.px(point, i),
        y: $$.py(point, i),
        color: $$.pcolor(point, i) || graph.color,
        symbol: $$.psymbol(point, i) || graph.symbol,
        key: $$.pkey(point, i),
        size: $$.psize(point, i),
        indicator: $$.pindicator(point, i),
        annotation: $$.pannotation(point, i),
        children: ($$.pchildren(point, i) || []).map(function (point, i) {
          return getPoint(point, i, graph);
        })
      };
    }

    function getGraphs(d, i) {
      var graphs = $$.graphs(d, i).map(function (graph, i) {

        var newGraph = {
          data: graph,
          index: i,
          tendancy: $$.tendancy(graph, i),
          tooltipGraph: $$.tooltipGraph(graph, i),
          shift: $$.shift(graph, i),
          key: $$.key(graph, i),
          color: $$.color(graph, i),
          symbol: $$.symbol(graph, i)
        };

        newGraph.values = $$.values(graph, i).map(function (point, i) {
          return getPoint(point, i, newGraph);
        });

        return newGraph;
      });

      graphs.forEach(function (graph) {
        return graph.values.forEach(function (v) {
          return setStructure(v, graph.tendancy);
        });
      });

      return graphs;
    }

    // bubble pack updater
    // The autoEnter flag will decide whether the entering bubbles will render
    // at their respective location or if they will expand from their parents
    // location. When the bubblePack is re-rendered upon clicking
    // on a parent bubble, this will be called with autoEnter = false to preserve
    // the flow of child bubbles flowing from their parents location to their
    // location.
    var bubblePack = function bubblePack(context) {
      var autoEnter = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;

      var transition = context.selection ? context : null,
          selection = context.selection ? context.selection() : context;

      var graphs = selection.selectAll('.d2b-bubble-pack-graphs').data(function (d) {
        return [d];
      });

      graphs = graphs.merge(graphs.enter().append('g').attr('class', 'd2b-bubble-pack-graphs'));

      var graph = graphs.selectAll('.d2b-bubble-pack-graph').data(function (d, i) {
        return getGraphs(d, i);
      }, function (d) {
        return d.key;
      });

      // enter graph
      var graphEnter = graph.enter().append('g').attr('class', 'd2b-bubble-pack-graph d2b-graph');

      var graphUpdate = graph.merge(graphEnter).order(),
          graphExit = graph.exit();

      if (transition) {
        graphUpdate = graphUpdate.transition(transition);
        graphExit = graphExit.transition(transition);
      }

      // update graph
      graphUpdate.style('opacity', 1);

      // exit graph
      graphExit.style('opacity', 0).remove();

      // iterate through each context element
      context.each(function (d, i) {
        var selection = d3.select(this),
            duration = $$.duration(d, i),
            graph = selection.selectAll('.d2b-bubble-pack-graph'),
            graphsNode = selection.selectAll('.d2b-bubble-pack-graphs').node(),
            preX = graphsNode.__d2bPreserveScaleX__ || $$.x,
            preY = graphsNode.__d2bPreserveScaleY__ || $$.y;

        selection.on('change', function () {
          selection.transition().duration(duration).call(bubblePack, false);
        });

        var maxWidth = 0;

        // render the bubble packs for each graph
        graph.each(function (graph) {
          var el = d3.select(this),
              xRange = $$.x.range();

          maxWidth = Math.max(maxWidth, Math.abs(xRange[0] - xRange[1]));

          var shift = graph.shift;
          if (shift === null) shift = $$.x.bandwidth ? $$.x.bandwidth() / 2 : 0;

          $$.point.active(function (d) {
            return !!d.children.length;
          }).fill(function (point) {
            return point.color;
          }).type(function (point) {
            return point.symbol;
          });

          var addTooltipPoint = graph.tooltipGraph ? graph.tooltipGraph.clear().x(function (point) {
            return $$.x(point.x) + shift;
          }).y(function (point) {
            return $$.y(point.y);
          }).color(function (point) {
            return point.color;
          }).addPoint : null;

          renderPacks(el, graph.values, transition, $$.x, $$.y, preX, preY, shift, selection, addTooltipPoint, autoEnter);
        });
        positionIndicators(selection, maxWidth);
      });

      // Make a copy of the scales sticky on the 'graphs' node
      graphs.each(function () {
        this.__d2bPreserveScaleX__ = $$.x.copy();
        this.__d2bPreserveScaleY__ = $$.y.copy();
      });

      selection.dispatch('svg-bubble-pack-updated', { bubbles: true });

      return bubblePack;
    };

    // propagate expanded state to child tree
    function propagateExpanded(data, state) {
      data.data.expanded = state;
      data.children.forEach(function (child) {
        return propagateExpanded(child, state);
      });
    }

    // Position all bubble indicators to be next to each other.
    function positionIndicators(selection, maxWidth) {
      var positionx = 5,
          positiony = 5;
      selection.selectAll('.d2b-bubble-indicator.d2b-active').attr('transform', function () {
        var box = this.getBBox();

        if (box.width + positionx > maxWidth && positionx > 0) {
          positionx = 5;
          positiony += box.height + 5;
        }

        var translate = 'translate(' + positionx + ', ' + positiony + ')';
        positionx += box.width + 5;
        return translate;
      });
    }

    /**
     * Renders bubble.
     * @param {d3.selection} el - bubble pack
     * @param {d3.transition or null} trans - transition if present
     * @param {d3.scale} x - x scale
     * @param {d3.scale} y - y scale
     * @param {Number} shift - horizontal pixel shift
     */
    function renderPoint(el, trans, x, y, shift) {
      el.each(function (d) {
        var el = d3.select(this);

        var transform = el.attr('transform');

        if (!transform) {
          el.attr('transform', 'translate(' + (x(d.parent ? d.parent.x : d.x) + shift + ',') + (y(d.parent ? d.parent.y : d.y) + ')'));
        }

        if (d.children.length && !d.data.expanded) {
          el.attr('cursor', 'pointer').on('click', function () {
            d3.select(this).dispatch('change', { bubbles: true, cancelable: true });
          }).on('change', function (d) {
            return d.data.expanded = !d.data.expanded;
          });
        } else el.attr('cursor', '').on('click', null);

        if (trans) el = el.transition(trans);

        if (d.data.expanded) el.style('opacity', 0).selectAll('*').remove();else el.style('opacity', null).call($$.point);

        el.attr('transform', 'translate(' + (x(d.x) + shift) + ', ' + y(d.y) + ')');

        // update annotations
        update(el, $$.annotation, 'd2b-bubble-annotation');
      });
    }

    /**
     * Renders bubble indicator.
     * @param {d3.selection} el - bubble pack
     * @param {d3.transition or null} trans - transition if present
     * @param {d3.scale} x - x scale
     * @param {d3.scale} y - y scale
     * @param {Number} shift - horizontal pixel shift
     */
    function renderIndicator(el) {
      el.each(function (d) {
        var el = d3.select(this).classed('d2b-active', d.data.expanded);

        if (!d.data.expanded) return el.selectAll('rect, text, path').remove();

        var rect = el.select('rect'),
            text = el.select('text'),
            path = el.select('path');
        if (!rect.size()) rect = el.append('rect');
        if (!text.size()) text = el.append('text');
        if (!path.size()) path = el.append('path');

        text.text(function (d) {
          return d.indicator.substring(0, 5);
        }).attr('x', 20);
        var textBox = text.node().getBBox();
        text.attr('y', textBox.height / 1.35);
        rect.on('click', function () {
          d3.select(this).dispatch('change', { bubbles: true, cancelable: true });
        }).on('change', function (d) {
          d.data.expanded = !d.data.expanded;
          if (!d.data.expanded) propagateExpanded(d, false);
        }).attr('width', textBox.width + 25).attr('height', textBox.height).style('fill', $$.point.fill()).style('stroke', $$.point.stroke());

        path.attr('d', function (d) {
          return indicatorSymbol.type(d.symbol)();
        }).attr('transform', 'translate(10, 9.5)').style('fill', $$.point.stroke());
      });
    }

    /**
     * Renders bubble packs recursively.
     * @param {d3.selection} el - packs container
     * @param {Array} data - packs data
     * @param {d3.transition or null} trans - transition if present
     * @param {d3.scale} x - x scale
     * @param {d3.scale} y - y scale
     * @param {d3.scale} preX - pervious x scale
     * @param {d3.scale} preY - pervious y scale
     * @param {Number} shift - horizontal pixel shift
     * @param {d3.selection} chart - master chart container
     * @param {function} addTooltipPoint - function to append a point to the tooltip component
     * @param {Boolean} autoEnter - enter point at its own location rather than its parents
     * @param {Number} depth - depth tracker
     */
    function renderPacks(el, data, trans, x, y, preX, preY, shift, chart, addTooltipPoint, autoEnter) {
      var depth = arguments.length > 11 && arguments[11] !== undefined ? arguments[11] : 0;

      // set pack data
      var pack = el.selectAll('.d2b-bubble-pack.d2b-depth-' + depth).data(data, function (d) {
        return d.key;
      }),
          packEnter = pack.enter().append('g').attr('class', 'd2b-bubble-pack d2b-depth-' + depth),
          packUpdate = pack.merge(packEnter);

      var pointEnter = packEnter.append('g').attr('class', 'd2b-bubble-point');
      if (autoEnter) renderPoint(pointEnter, false, preX, preY, shift);
      pointEnter.style('opacity', 0);
      renderPoint(packUpdate.select('.d2b-bubble-point'), trans, x, y, shift);
      packEnter.append('g').attr('class', 'd2b-bubble-indicator');
      renderIndicator(packUpdate.select('.d2b-bubble-indicator'));

      // update children bubbles if expanded
      packUpdate.each(function (point) {
        var el = d3.select(this);
        var subPacks = el.selectAll('.d2b-bubble-pack');
        subPacks = trans ? subPacks.transition(trans) : subPacks;

        if (point.children.length && point.data.expanded) {
          renderPacks(el, point.children, trans, x, y, preX, preY, shift, chart, addTooltipPoint, autoEnter, depth + 1);
        } else {
          if (addTooltipPoint) addTooltipPoint(point);
          subPacks.remove().select('.d2b-bubble-point').style('opacity', 0).attr('transform', 'translate(' + [x(point.x) + shift, y(point.y)] + ')');
        }
      });

      var packExit = pack.exit();
      if (trans) packExit = packExit.transition(trans);
      packExit.remove();
    }

    // Recursively set the data structure starting at root node `d`
    function setStructure(d, tendancy) {
      var depth = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;

      d.children = d.children || [];
      d.leaves = d.children.length ? [] : [d];
      d.depth = depth;
      if (d.children.length) {
        d.children.forEach(function (child) {
          setStructure(child, tendancy, depth + 1);
          child.parent = d;
          d.leaves = d.leaves.concat(child.leaves);
        });
      }

      d.size = oreq(d.size, d3.sum(d.leaves, function (d) {
        return d.size;
      }));

      d.x = oreq(d.x, (tendancy.x || tendancy)(d.leaves, function (d) {
        return d.x;
      }, function (d) {
        return d.size;
      }));
      d.y = oreq(d.y, (tendancy.y || tendancy)(d.leaves, function (d) {
        return d.y;
      }, function (d) {
        return d.size;
      }));
    }

    /* Inherit from base model */
    base(bubblePack, $$).addProp('point', point().size(function (d) {
      return d.size * 100;
    })).addProp('x', d3.scaleLinear()).addProp('y', d3.scaleLinear()).addProp('annotation', d3SvgAnnotation.annotation ? d3SvgAnnotation.annotation() : null).addPropGet('type', 'bubblePack').addPropFunctor('duration', 250).addPropFunctor('graphs', function (d) {
      return d;
    })
    // graph props
    .addPropFunctor('tendancy', mean, function (_) {
      if (!arguments.length) return $$.tendancy;
      if (_ && _.tendancy) $$.tendancy = function () {
        return _;
      };else $$.tendancy = functor(_);

      return bubblePack;
    }).addPropFunctor('tooltipGraph', function (d) {
      return d.tooltipGraph;
    }).addPropFunctor('shift', null).addPropFunctor('key', function (d) {
      return d.label;
    }).addPropFunctor('values', function (d) {
      return d.values;
    }).addPropFunctor('color', function (d) {
      return color(d.label);
    }).addPropFunctor('symbol', function () {
      return d3.symbolCircle;
    })
    // point props
    .addPropFunctor('px', function (d) {
      return d.x;
    }).addPropFunctor('py', function (d) {
      return d.y;
    }).addPropFunctor('psize', function (d) {
      return d.size;
    }).addPropFunctor('pchildren', function (d) {
      return d.children;
    }).addPropFunctor('pcolor', null).addPropFunctor('psymbol', null).addPropFunctor('pindicator', function (d) {
      return d.label;
    }).addPropFunctor('pkey', function (d, i) {
      return i;
    }).addPropFunctor('pannotation', function (d) {
      return d.annotation;
    })
    // methods
    .addMethod('getComputedGraphs', function (context) {
      return (context.selection ? context.selection() : context).data().map(function (d, i) {
        return getGraphs(d, i);
      });
    }).addMethod('getVisiblePoints', function (context) {
      var data = bubblePack.getComputedGraphs(context);

      function addPoint(point, points, graph) {
        if (!point.data.expanded) {
          points.push({ x: point.x, y: point.y, graph: graph });
        } else {
          point.children.forEach(function (point) {
            return addPoint(point, points, graph);
          });
        }
      }

      return data.map(function (graphs) {
        return [].concat.apply([], graphs.map(function (graph) {
          var points = [];
          graph.values.forEach(function (point) {
            return addPoint(point, points, graph);
          });
          return points;
        }));
      })[0];
    });

    return bubblePack;
  }

  // sunburst svg generator
  function svgSunburst () {

    var $$ = {};

    var arc = d3.arc();

    /* Update Function */
    var sunburst = function sunburst(context) {
      var selection = context.selection ? context.selection() : context;

      $$.pie.value(function (d) {
        return d.value;
      });

      selection.each(function (d, i) {
        var el = d3.select(this),
            zoomable = $$.zoomable(d, i),
            highlight = $$.highlight(d, i),
            innerRadius = $$.innerRadius(d, i),
            showLabels = $$.showLabels(d, i),
            root = getHierarchy(d);

        var selected = getSelected(root);
        setVisibility(selected, $$.descendantLevels(d, i) + selected.depth);

        root.each(function (d) {
          return d.selected = selected;
        });

        var radii = getRadii(d, i, root, selected);

        updateNodes.call(this, [root], 'arc', 0, $$.startAngle(d, i), $$.endAngle(d, i), {
          transition: context !== selection ? context : null,
          oldRadii: oreq(this.__radii, radii),
          radii: radii,
          zoomable: zoomable
        });

        updateNodes.call(this, showLabels ? [root] : [], 'label', 0, $$.startAngle(d, i), $$.endAngle(d, i), {
          transition: context !== selection ? context : null,
          oldRadii: oreq(this.__radii, radii),
          radii: radii
        });

        // insert a center circle that is transparent, but whenever it is clicked
        // the selection will be passed to the current selection's parent
        var center = el.selectAll('.d2b-sunburst-center');

        center.data([selected]).enter().append('circle').attr('class', 'd2b-sunburst-center').merge(center).attr('cx', 0).attr('cy', 0).attr('r', Math.max(0, innerRadius)).on('click', function (d) {
          if (!d.parent) return;
          d.data.selected = false;
          d.parent.data.selected = true;
          el.transition().duration($$.duration(d, i)).call(sunburst);
        });

        this.__radii = radii;

        el.selectAll('path.d2b-sunburst-arc').on('click', zoomable ? function (node) {
          root.each(function (d) {
            return d.data.selected = false;
          });
          node.data.selected = true;
          el.transition().duration($$.duration(d, i)).call(sunburst);
        } : null).on('mouseover', highlight ? function (node) {
          var ancestors = node.ancestors();

          el.selectAll('.d2b-sunburst-arc').classed('d2b-transparent', function (d) {
            return ancestors.indexOf(d) === -1;
          });

          el.selectAll('.d2b-sunburst-label').classed('d2b-transparent', function (d) {
            return ancestors.indexOf(d) === -1;
          });
        } : null).on('mouseout', function () {
          el.selectAll('.d2b-sunburst-arc').classed('d2b-transparent', false);
          el.selectAll('.d2b-sunburst-label').classed('d2b-transparent', false);
        });
      });

      selection.dispatch('svg-sunburst-updated', { bubbles: true });

      return sunburst;
    };

    /* Inherit from base model */
    base(sunburst, $$).addProp('pie', d3.pie().sort(null)).addProp('ancestorBanding', d3.scaleLinear()).addProp('descendantBanding', d3.scalePow().exponent(0.85))
    // Datum Level Accessors
    .addPropFunctor('duration', 250).addPropFunctor('innerRadius', 30).addPropFunctor('outerRadius', 200).addPropFunctor('ancestorPadding', 10).addPropFunctor('ancestorRatio', 0.2).addPropFunctor('descendantLevels', Infinity).addPropFunctor('startAngle', 0).addPropFunctor('endAngle', 2 * Math.PI).addPropFunctor('showLabels', false).addPropFunctor('zoomable', true).addPropFunctor('highlight', true)
    // Node Level Accessors
    .addPropFunctor('key', function (d) {
      return $$.label(d);
    }).addPropFunctor('label', function (d) {
      return d.label;
    }).addPropFunctor('color', function (d) {
      return color($$.label(d));
    }).addPropFunctor('children', function (d) {
      return d.children;
    }).addPropFunctor('size', function (d) {
      return d.size;
    });

    function getHierarchy(d) {
      // compute a hierarchy based on the root, only use sizes for leaf nodes.
      return updateDescendants(d3.hierarchy(d, $$.children).sum(function (d) {
        var children = $$.children(d);
        if (!children || !children.length) return $$.size(d);
      }));
      // return updateDescendants(d3.hierarchy(d, $$.children).sum($$.size));
    }

    function updateDescendants(node) {
      var i = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;

      node.key = $$.key(node.data, i);
      node.color = $$.color(node.data, i);
      node.label = $$.label(node.data, i);
      node.size = $$.size(node.data, i);
      node.value = node.size;

      if (!node.children) return;

      node.children.forEach(updateDescendants);

      node.value = getValue(node);

      return node;
    }

    function getValue(node) {
      return oreq(node.size, node.children ? d3.sum(node.children, getValue) : 0);
    }

    function getSelected(root) {
      var node = null;

      // find selected node
      root.each(function (d) {
        if (d.data.selected) node = d;
      });

      // if selected isn't defined set it to the root node
      if (!node) node = root;
      // if selected is a leaf (bottom) node give selected to the parent
      // else if ((!node.children || !node.children.length) && node.parent) {
      //   node.data.selected = false;
      //   node = node.parent;
      // }

      // make sure selected flag is still asserted
      node.data.selected = true;

      return node;
    }

    // set visibility flag for all nodes
    function setVisibility(d, maxDepth) {
      d.ancestors().concat(d.descendants()).filter(function (d) {
        return d.depth <= maxDepth && d.value > 0;
      }).forEach(function (d) {
        return d.visible = true;
      });
    }

    // returns a function used to find the inner/outer radii for an arc based
    // on it's depth
    function getRadii(d, i, root, selected) {
      var innerRadius = $$.innerRadius(d, i),
          outerRadius = $$.outerRadius(d, i),
          ancestorPadding = $$.ancestorPadding(d, i),
          ancestorRatio = $$.ancestorRatio(d, i);

      var height = 0;

      root.each(function (node) {
        if (node.visible) height = Math.max(height, node.depth);
      });

      var width = outerRadius - innerRadius - ancestorPadding,
          breakpoint = innerRadius + width * ancestorRatio,

      // radii-inner-scale is used to position inner bands
      radiiInner = $$.ancestorBanding.copy().range([innerRadius, breakpoint]).domain([0, selected.depth + 1]),

      // radii-outer-scale is used to position outer bands
      radiiOuter = $$.descendantBanding.copy().range([breakpoint + ancestorPadding, outerRadius]).domain([selected.depth + 1, height + 1]);

      // fetch the { inner, outer } radii for an arc based on it's depth
      return function (depth) {
        var scale = void 0;
        if (depth <= selected.depth) scale = radiiInner;else scale = radiiOuter;
        return { inner: scale(depth), outer: scale(depth + 1) };
      };
    }

    function getLabelRotation(centerAngle) {
      if (centerAngle > Math.PI) return toDegrees(centerAngle) + 90;else return toDegrees(centerAngle) - 90;
    }

    function getLabelOffset(centerAngle, radii) {
      var offset = (radii.inner - radii.outer) / 2.2;
      if (centerAngle > Math.PI) return -offset;else return offset;
    }

    function getLabelAnchor(centerAngle) {
      if (centerAngle > Math.PI) return 'end';else return 'start';
    }

    function updateNodes(newData, type, depth, startAngle, endAngle, tools) {

      var tween = type === 'arc' ? tweenArc : tweenCentroid;

      newData = newData.filter(function (d) {
        return d.visible;
      });

      $$.pie.startAngle(startAngle).endAngle(endAngle);

      $$.pie(newData).forEach(function (d) {
        var radii = tools.radii(d.data.depth);

        d.data.startAngle = d.startAngle;
        d.data.endAngle = d.endAngle;
        d.data.padAngle = d.padAngle;
        d.data.innerRadius = radii.inner;
        d.data.outerRadius = radii.outer;
        d.data.centerAngle = (d.startAngle + d.endAngle) / 2;

        d.data.rotate = getLabelRotation(d.data.centerAngle);
        d.data.labelOffset = getLabelOffset(d.data.centerAngle, radii);
        d.data.labelAnchor = getLabelAnchor(d.data.centerAngle);
      });

      var el = d3.select(this),
          levelClass = 'd2b-sunburst-level-' + depth;

      var arcUpdate = el.selectAll('.d2b-sunburst-' + type + '-group.' + levelClass);

      var oldData = arcUpdate.data();

      arcUpdate = arcUpdate.data(newData, function (d) {
        return d.key;
      });

      var arcEnter = arcUpdate.enter().append('g').attr('class', 'd2b-sunburst-' + type + '-group ' + levelClass),
          pathEnter = arcEnter.append(type === 'arc' ? 'path' : 'text').attr('class', 'd2b-sunburst-' + type + ' ' + levelClass).each(function (d, i) {
        var radii = tools.oldRadii(d.depth),
            neighbor = d.neighbor || findNeighborArc(i, oldData, newData);

        this.current = {
          startAngle: neighbor.startAngle,
          endAngle: neighbor.endAngle,
          innerRadius: radii.inner,
          outerRadius: radii.outer,
          rotate: getLabelRotation((neighbor.startAngle + neighbor.endAngle) / 2)
        };

        if (!d.children) return;

        d.children.forEach(function (dd) {
          return dd.neighbor = neighbor;
        });
      });

      arcEnter.append('g').attr('class', 'd2b-sunburst-' + type + '-children ' + levelClass);

      if (type === 'arc') pathEnter.style('fill', function (d) {
        return d.color;
      });else pathEnter.style('opacity', 0).attr('y', 4);

      var arcExit = arcUpdate.exit();

      arcUpdate = arcUpdate.merge(arcEnter);

      arcUpdate.select('.d2b-sunburst-' + type + '.' + levelClass).classed('d2b-sunburst-ancestor', function (d) {
        return d.depth < d.selected.depth;
      });

      if (tools.transition) {

        arcExit.each(function (d, i) {
          var data = findNeighborArc(i, newData, oldData);
          var el = d3.select(this);

          var pathExit = el.selectAll('.d2b-sunburst-' + type).datum(function (d) {
            var radii = tools.radii(d.depth);
            d.innerRadius = radii.inner;
            d.outerRadius = radii.outer;
            d.startAngle = data.startAngle;
            d.endAngle = data.endAngle;
            d.centerAngle = data.centerAngle;

            d.rotate = getLabelRotation(d.centerAngle);
            d.labelOffset = getLabelOffset(d.centerAngle, radii);

            return d;
          }).transition(tools.transition).call(tween, arc);

          if (type === 'label') {
            pathExit.style('opacity', 0).attr('x', function (d) {
              return d.labelOffset;
            });
          }
        });

        arcExit = arcExit.transition(tools.transition);

        arcUpdate = arcUpdate.transition(tools.transition);
      }

      arcExit.remove();

      var pathUpdate = arcUpdate.select('.d2b-sunburst-' + type + '.' + levelClass).call(tween, arc);

      if (type === 'arc') {
        pathUpdate.style('fill', function (d) {
          return d.color;
        });
      } else {
        pathUpdate.text(function (d) {
          return d.depth >= d.selected.depth ? d.label : '';
        }).style('opacity', 1).attr('x', function (d) {
          return d.labelOffset;
        }).style('text-anchor', function (d) {
          return d.labelAnchor;
        });
      }

      arcUpdate.select('.d2b-sunburst-' + type + '-children.' + levelClass).each(function (d) {
        var children = d.children || [];
        var childrenTotal = d3.sum(children, function (c) {
          return c.value;
        });
        var childrenEndAngle = d.startAngle + (d.endAngle - d.startAngle) * childrenTotal / d.value;
        updateNodes.call(this, children, type, depth + 1, d.startAngle, childrenEndAngle, tools);
      });
    }

    function findNeighborArc(i, data0, data1) {
      var preceding = findPreceding(i, data0, data1),
          following = findFollowing(i, data0, data1);
      if (preceding) {
        return { startAngle: preceding.endAngle, endAngle: preceding.endAngle };
      } else if (following) {
        return { startAngle: following.startAngle, endAngle: following.startAngle };
      }
      return { startAngle: 0, endAngle: 0, centerAngle: 0 };
    }

    // Find the element in data0 that joins the highest preceding element in data1.
    function findPreceding(i, data0, data1) {
      var m = data0.length;
      while (--i >= 0) {
        var k = data1[i].key;
        for (var j = 0; j < m; ++j) {
          if (data0[j].key === k) return data0[j];
        }
      }
    }

    // Find the element in data0 that joins the lowest following element in data1.
    function findFollowing(i, data0, data1) {
      var n = data1.length,
          m = data0.length;
      while (++i < n) {
        var k = data1[i].key;
        for (var j = 0; j < m; ++j) {
          if (data0[j].key === k) return data0[j];
        }
      }
    }

    return sunburst;
  }

  // sankey svg generator
  function sankey$1 () {

    var $$ = {};

    /* Update Function */
    var sankey = function sankey(context) {
      var selection = context.selection ? context.selection() : context;

      selection.each(function (datum) {
        var transition = context === selection ? null : context;

        var el = d3.select(this),
            size = $$.size(datum),
            sankeyLink = d3Sankey.sankeyLinkHorizontal();

        // map node data wrapper
        var nodesData = $$.nodes(datum).map(function (d, i) {
          var key = $$.nodeKey(d, i);

          return {
            key: key,
            label: $$.nodeLabel(d, i, key),
            color: $$.nodeColor(d, i, key),
            draggableX: $$.nodeDraggableX(d, i),
            draggableY: $$.nodeDraggableY(d, i),
            preserveDragging: $$.nodePreserveDragging(d, i),
            wrapLength: $$.nodeLabelWrapLength(d, i),
            data: d,
            index: i
          };
        });

        // map link data wrapper
        var linksData = $$.links(datum).map(function (d, i) {
          var source = $$.linkSource(d, i),
              target = $$.linkTarget(d, i);

          var sourceKey = (typeof source === 'undefined' ? 'undefined' : _typeof(source)) === 'object' ? $$.nodeKey(source) : source,
              targetKey = (typeof target === 'undefined' ? 'undefined' : _typeof(target)) === 'object' ? $$.nodeKey(target) : target;

          var key = $$.linkKey(d, i, sourceKey, targetKey);

          return {
            sourceKey: sourceKey,
            targetKey: targetKey,
            key: key,
            keyTrim: key.replace(/ /g, ''),
            sourceColor: $$.linkSourceColor(d, i, sourceKey),
            targetColor: $$.linkTargetColor(d, i, targetKey),
            value: $$.linkValue(d, i),
            source: source,
            target: target,
            data: d,
            index: i
          };
        });

        // config sankey
        $$.sankey.size([size.width, size.height]).nodeId(function (d) {
          return d.key;
        }).nodes(nodesData).links(linksData);

        var nodeWidth = $$.sankey.nodeWidth();

        // get sankey graph layout and filter out those that have a falsy value
        var graph = $$.sankey.nodes(nodesData).links(linksData)();
        graph.links = graph.links.filter(function (n) {
          return !!n.value;
        });
        graph.nodes = graph.nodes.filter(function (n) {
          return !!n.value;
        });
        graph = $$.sankey.nodes(graph.nodes).links(graph.links)();

        // render link gradients
        var linkDefs = el.selectAll('.d2b-sankey-link-defs').data([graph.links]),
            linksDefsEnter = linkDefs.enter().append('defs').attr('class', 'd2b-sankey-link-defs');

        linkDefs = linkDefs.merge(linksDefsEnter);

        var linkGradient = linkDefs.selectAll('.d2b-def-gradient').data(function (d) {
          return d;
        }, function (d) {
          return d.keyTrim;
        }),
            linkGradientEnter = linkGradient.enter().append('linearGradient').attr('class', 'd2b-def-gradient'),
            linkGradientExit = linkGradient.exit();

        linkGradientEnter.append('stop').attr('class', 'd2b-gradient-from').attr('offset', '0%');

        linkGradientEnter.append('stop').attr('class', 'd2b-gradient-to').attr('offset', '100%');

        linkGradient = linkGradient.merge(linkGradientEnter);

        if (transition) {
          linkGradientExit = linkGradientExit.transition(transition);
          linkGradient = linkGradient.transition(transition);
        }

        linkGradientExit.remove();

        linkGradient.attr('id', function (d) {
          return d.keyTrim;
        });

        linkGradient.select('.d2b-gradient-from').attr('stop-color', function (d) {
          return d.sourceColor;
        });

        linkGradient.select('.d2b-gradient-to').attr('stop-color', function (d) {
          return d.targetColor;
        });

        // render links
        var links = el.selectAll('.d2b-sankey-links').data([graph.links]),
            linksEnter = links.enter().append('g').attr('class', 'd2b-sankey-links');

        links = links.merge(linksEnter);

        var link = links.selectAll('.d2b-sankey-link').data(function (d) {
          return d;
        }, function (d) {
          return d.key;
        }),
            linkEnter = link.enter().append('g').attr('class', 'd2b-sankey-link'),
            linkExit = link.exit();

        var linkStatic = link = link.merge(linkEnter);

        if (transition) {
          link = link.transition(transition);
          linkExit = linkExit.transition(transition);
        }

        // render nodes
        var nodes = el.selectAll('.d2b-sankey-nodes').data([graph.nodes]),
            nodesEnter = nodes.enter().append('g').attr('class', 'd2b-sankey-nodes');

        nodes = nodes.merge(nodesEnter);

        var node = nodes.selectAll('.d2b-sankey-node').data(function (d) {
          return d;
        }, function (d) {
          return d.key;
        }),
            nodeEnter = node.enter().append('g').attr('class', 'd2b-sankey-node'),
            nodeExit = node.exit();

        var nodeStatic = node = node.merge(nodeEnter);

        if (transition) {
          node = node.transition(transition);
          nodeExit = nodeExit.transition(transition);
        }

        // setup node dragging and preserve previous dragging
        node.each(function (d) {
          if (d.draggableX || d.draggableY) {
            d3.select(this).classed('d2b-draggable', true).call(d3.drag().on('drag', drag));
          } else {
            d3.select(this).classed('d2b-draggable', false).on('.drag', null);
          }

          if (d.preserveDragging) {
            if (this.__dragX0 !== undefined) {
              d.x0 = this.__dragX0 * size.width;
              d.x1 = d.x0 + nodeWidth;
            }

            if (this.__dragY0 !== undefined) {
              var height = d.y1 - d.y0;
              d.y0 = this.__dragY0 * size.height;
              d.y1 = d.y0 + height;
            }
          }
        });

        $$.sankey.update(graph);

        linkEnter.style('opacity', 0).append('path').attr('d', sankeyLink).style('stroke', function (d) {
          return 'url(#' + d.keyTrim + ')';
        }).style('stroke-width', function (d) {
          return d.width + 'px';
        });

        linkExit.style('opacity', 0).remove();

        nodeEnter.attr('transform', function (d) {
          return 'translate(' + d.x0 + ', ' + d.y0 + ')';
        }).style('opacity', 0);

        nodeEnter.append('rect').attr('width', Math.max(0, nodeWidth)).attr('height', function (d) {
          return Math.max(0, d.y1 - d.y0);
        });

        nodeEnter.append('text').attr('x', labelX).attr('y', labelY);

        nodeExit.style('opacity', 0).remove();

        updater(transition);

        function labelX(d) {
          return labelLeft(d) ? nodeWidth + 5 : -5;
        }

        function labelLeft(d) {
          return d.x0 < size.width / 2;
        }

        function labelY(d) {
          return 5 + Math.max(0, d.y1 - d.y0) / 2;
        }

        function drag(d) {
          if (d.draggableX) {
            d.x0 = Math.max(0, Math.min(size.width - nodeWidth, d.x0 + d3.event.dx));
            d.x1 = d.x0 + nodeWidth;
            this.__dragX0 = d.x0 / size.width; // save drag position as a percent of the width
          }
          if (d.draggableY) {
            var height = d.y1 - d.y0;
            d.y0 = Math.max(0, Math.min(size.height - (d.y1 - d.y0), d.y0 + d3.event.dy));
            d.y1 = d.y0 + height;
            this.__dragY0 = d.y0 / size.height; // save drag position as a percent of the height
          }
          $$.sankey.update(graph);
          updater();
        }

        // set attributes on defined nodes and links
        function updater() {
          var transition = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;

          nodeStatic.select('text').classed('d2b-text-anchor-end', function (d) {
            return !labelLeft(d);
          }).call(textWrap, function (d) {
            return d.label;
          }, function (d) {
            return d.wrapLength;
          }, 'middle');

          var l = transition ? link : linkStatic,
              n = transition ? node : nodeStatic;

          l.style('opacity', 1).select('path').attr('d', sankeyLink).style('stroke', function (d) {
            return 'url(#' + d.keyTrim + ')';
          }).style('stroke-width', function (d) {
            return d.width + 'px';
          });

          // fix for rectangular link gradients
          l.each(function (d) {
            var l = d3.select(this);

            // special case draw a rect
            if (Math.abs(d.y1 - d.y0) < 0.00001) {
              var rect = l.selectAll('rect').data([d]),
                  rectEnter = rect.enter().append('rect'),
                  width = d.target.x0 - d.source.x1;

              rect = rect.merge(rectEnter);

              if (transition) rect = rect.transition(transition);

              rect.attr('x', d.source.x1 + Math.min(0, width)).attr('y', d.y0 - d.width / 2).attr('height', Math.max(0, d.width)).attr('width', Math.abs(d.target.x0 - d.source.x1)).style('fill', 'url(#' + d.keyTrim + ')');

              l.select('path').style('display', 'none');
            } else {
              l.select('rect').remove();
              l.select('path').style('display', '');
            }
          });

          n.attr('transform', function (d) {
            return 'translate(' + d.x0 + ', ' + d.y0 + ')';
          }).style('opacity', 1);

          n.select('rect').attr('width', Math.max(0, nodeWidth)).attr('height', function (d) {
            return Math.max(0, d.y1 - d.y0);
          }).style('fill', function (d) {
            return d.color;
          });

          n.select('text').attr('x', labelX).attr('y', labelY);
        }
      });

      selection.dispatch('svg-sankey-updated', { bubbles: true });

      return sankey;
    };

    /* Inherit from base model */
    base(sankey, $$).addProp('sankey', d3Sankey.sankey()).addPropFunctor('size', { width: 960, height: 500 }).addPropFunctor('nodes', function (d) {
      return d.nodes;
    }).addPropFunctor('nodeKey', function (d) {
      return d.name;
    }).addPropFunctor('nodeLabel', function (d, i, key) {
      return key;
    }).addPropFunctor('nodeLabelWrapLength', Infinity).addPropFunctor('nodeDraggableX', false).addPropFunctor('nodeDraggableY', false).addPropFunctor('nodePreserveDragging', true).addPropFunctor('nodeColor', function (d, i, key) {
      return color(key);
    }).addPropFunctor('links', function (d) {
      return d.links;
    }).addPropFunctor('linkSource', function (d) {
      return d.source;
    }).addPropFunctor('linkSourceColor', function (d, i, sourceKey) {
      return color(sourceKey);
    }).addPropFunctor('linkTarget', function (d) {
      return d.target;
    }).addPropFunctor('linkTargetColor', function (d, i, targetKey) {
      return color(targetKey);
    }).addPropFunctor('linkKey', function (d, i, sourceKey, targetKey) {
      return sourceKey + '-' + targetKey;
    }).addPropFunctor('linkValue', function (d) {
      return d.value;
    });

    return sankey;
  }

  // TODO: Clean up text wrapping with transition udpates
  // TODO: Clean up plane build workflow

  // plane svg generator
  function plane () {

    var $$ = {},
        labelPad = 5;

    /* Update Function */
    var plane = function plane(context) {
      var selection = context.selection ? context.selection() : context;

      selection.each(function (d, i) {
        // get plane props
        var size = $$.size.call(this, d, i) || { width: 960, height: 500 },
            margin = makeMargin($$.margin.call(this, d, i)),
            x = $$.x.call(this, d, i),
            x2 = $$.x2.call(this, d, i),
            y = $$.y.call(this, d, i),
            y2 = $$.y2.call(this, d, i),
            el = d3.select(this),
            axes = {
          x: { type: 'x', data: x },
          x2: { type: 'x2', data: x2 },
          y: { type: 'y', data: y },
          y2: { type: 'y2', data: y2 }
        };

        // check if user defined padding
        var padding = makePadding($$.padding.call(this, d, i));

        // enter plane svg group
        var planeUpdate = el.selectAll('.d2b-plane').data([d]),
            planeEnter = planeUpdate.enter().append('g').attr('class', 'd2b-plane'),
            plane = planeUpdate.merge(planeEnter);

        var clipID = this.__clipID = this.__clipID || 'd2b-clip-plane-' + d2bid();

        planeEnter.append('defs').append('clipPath').attr('id', clipID).attr('class', 'd2b-clip-plane').append('rect');

        var transCtx = context !== selection ? context : null;

        setupAxis(axes.x, i, plane, size.width, transCtx);
        setupAxis(axes.x2, i, plane, size.width, transCtx);
        setupAxis(axes.y, i, plane, size.height, transCtx);
        setupAxis(axes.y2, i, plane, size.height, transCtx);

        // if padding is not set, find it dynamically
        if (!padding) padding = dynamicPadding(axes);

        // define plane box properties
        var planeBox = {
          top: padding.top + margin.top,
          bottom: padding.bottom + margin.bottom,
          left: padding.left + margin.left,
          right: padding.right + margin.right
        };
        planeBox.width = size.width - planeBox.left - planeBox.right;
        planeBox.height = size.height - planeBox.top - planeBox.bottom;

        // store plane box on the node
        this.__box__ = planeBox;

        if (transCtx) planeUpdate = planeUpdate.transition(transCtx);

        // position plane
        planeEnter.attr('transform', 'translate(' + planeBox.left + ', ' + planeBox.top + ')');
        planeUpdate.attr('transform', 'translate(' + planeBox.left + ', ' + planeBox.top + ')');

        updateAxis(axes.x, planeBox.width, 0, planeBox.height);
        updateAxis(axes.x2, planeBox.width, 0, 0);
        updateAxis(axes.y, planeBox.height, 0, 0);
        updateAxis(axes.y2, planeBox.height, planeBox.width, 0);

        updateGrid(axes.x, planeBox.width, planeBox.height);
        updateGrid(axes.x2, planeBox.width, planeBox.height);
        updateGrid(axes.y, planeBox.height, planeBox.width);
        updateGrid(axes.y2, planeBox.height, planeBox.width);

        updateLabel(axes.x, planeBox.width);
        updateLabel(axes.x2, planeBox.width);
        updateLabel(axes.y, -planeBox.height);
        updateLabel(axes.y2, -planeBox.height);

        plane.select('.d2b-clip-plane').select('rect').attr('width', planeBox.width + 1).attr('height', planeBox.height + 1);

        plane.selectAll('.d2b-grid').attr('clip-path', 'url(#' + clipID + ')');
      });

      selection.dispatch('plane-updated', { bubbles: true });

      return plane;
    };

    /* Inherit from base model */
    base(plane, $$)
    // plane level functors
    .addPropFunctor('size', function (d) {
      return d.size;
    }).addPropFunctor('padding', null).addPropFunctor('margin', 0).addPropFunctor('x', function (d) {
      return d.x;
    }).addPropFunctor('x2', function (d) {
      return d.x2;
    }).addPropFunctor('y', function (d) {
      return d.y;
    }).addPropFunctor('y2', function (d) {
      return d.y2;
    })
    // axis level functors
    .addPropFunctor('axis', function (d) {
      return d.axis;
    }).addPropFunctor('orient', function (d) {
      return d.orient || 'outer';
    }).addPropFunctor('wrapLength', function (d) {
      return oreq(d.wrapLength, Infinity);
    }).addPropFunctor('tickSize', function (d) {
      return oreq(d.tickSize, 6);
    }).addPropFunctor('showGrid', function (d) {
      return d.showGrid !== false;
    }).addPropFunctor('label', function (d) {
      return d.label;
    }).addPropFunctor('labelOrient', function (d) {
      return d.labelOrient || 'outer middle';
    })
    // Method to get the computed box of a specific plane container. This
    // method should be used after the plane has been rendered. Either the
    // legend SVG node or a d3 selection of the node may be specified.
    .addMethod('box', function (_) {
      var node = _.node ? _.node() : _;
      if (!node) return null;
      return node.__box__;
    });

    return plane;

    function setupAxis(axis, index, plane, extent, transCtx) {
      var axisData = [],
          gridData = [],
          data = axis.data;

      if (data) {
        setAxisInfo(axis, data, index, plane, extent);
        axisData = [data];
        if (axis.info.showGrid) gridData = [data];
      }

      // enter new axis container
      axis.update = plane.selectAll('.d2b-' + axis.type + '-axis').data(axisData);
      axis.enter = axis.update.enter().append('g').attr('class', 'd2b-axis d2b-' + axis.type + '-axis');

      // enter label container
      axis.labelEnter = axis.enter.append('text').attr('class', 'd2b-axis-label');

      // merge axis svg container
      axis.svg = axis.enter.merge(axis.update);

      // fetch axis label
      axis.label = axis.svg.select('.d2b-axis-label');

      // exit axis
      axis.update.exit().remove();

      // set axis grid data
      axis.gridUpdate = plane.selectAll('.d2b-' + axis.type + '-grid').data(gridData);

      // enter axis grid
      axis.gridEnter = axis.gridUpdate.enter().append('g').attr('class', 'd2b-grid d2b-' + axis.type + '-grid');

      // exit axis grid
      axis.gridUpdate.exit().remove();

      // merge axis grid
      axis.grid = axis.gridEnter.merge(axis.gridUpdate);

      if (transCtx) {
        axis.svg = axis.svg.transition(transCtx);
        axis.update = axis.update.transition(transCtx);
        axis.grid = axis.grid.transition(transCtx);
        axis.gridUpdate = axis.gridUpdate.transition(transCtx);
        axis.label = axis.label.transition(transCtx);
      }
    }

    function updateAxis(axis, extent, x, y) {
      if (!axis.data) return;
      setAxisTickSize(axis);
      setAxisRange(axis, extent);

      axis.enter.call(axis.info.axis).attr('transform', 'translate(' + x + ', ' + y + ')');
      axis.update.call(axis.info.axis).attr('transform', 'translate(' + x + ', ' + y + ')');

      axis.svg.call(wrapTicks, axis).on('end', function () {
        axis.svg.call(wrapTicks, axis);
      });
    }

    function updateGrid(axis, extentRange, extentGrid) {
      if (!axis.data) return;
      setGridTickSize(axis, extentGrid);
      setAxisRange(axis, extentRange);

      axis.gridUpdate.call(axis.info.axis).selectAll('.tick text').remove();

      axis.gridEnter.call(axis.info.axis).selectAll('.tick text').remove();
    }

    function updateLabel(axis, extent) {
      if (!axis.data) return;
      axis.labelEnter.text(axis.info.label).attr('x', labelX(axis, extent)).attr('y', labelY(axis)).attr('text-anchor', labelAnchor(axis));
      axis.label.text(axis.info.label).attr('x', labelX(axis, extent)).attr('y', labelY(axis)).attr('text-anchor', labelAnchor(axis));
    }

    function setGridTickSize(axis, extent) {
      if (!axis.data) return;
      switch (axis.type) {
        case 'x':
          return axis.info.axis.tickSize(axis.info.orient === 'inner' ? -extent : extent);
        case 'x2':
          return axis.info.axis.tickSize(axis.info.orient === 'inner' ? extent : -extent);
        case 'y':
          return axis.info.axis.tickSize(axis.info.orient === 'inner' ? extent : -extent);
        case 'y2':
          return axis.info.axis.tickSize(axis.info.orient === 'inner' ? -extent : extent);
      }
    }

    function setAxisTickSize(axis) {
      if (!axis.data) return;
      axis.info.axis.tickSizeOuter(0).tickSizeInner(axis.info.tickSize);
    }

    function setAxisRange(axis, extent) {
      if (!axis.data) return;
      if (['y', 'y2'].indexOf(axis.type) > -1) {
        axis.info.axis.scale().range([extent, 0]);
      } else {
        axis.info.axis.scale().range([0, extent]);
      }
    }

    // insert and remove dummy ticks and labels to pad axes accordingly
    function setAxisInfo(axis, d, i, cont, extent) {
      if (!axis.data) return;
      var info = axis.info = {};

      info.axis = $$.axis(d, i);
      info.orient = $$.orient(d, i);
      info.wrapLength = $$.wrapLength(d, i);
      info.label = oreq($$.label(d, i), '');
      info.labelOrient = $$.labelOrient(d, i);
      info.tickSize = $$.tickSize(d, i);
      info.showGrid = $$.showGrid(d, i);
      info.labelOrient1 = info.labelOrient.split(' ')[0];
      info.labelOrient2 = info.labelOrient.split(' ')[1];

      info.wrapAnchor = wrapAnchor(axis);

      setAxisTickSize(axis);
      setAxisRange(axis, extent);

      var dummyAxis = cont.append('g').attr('class', 'd2b-axis d2b-' + axis.type + '-axis').call(info.axis).call(wrapTicks, axis);
      info.axisBox = dummyAxis.node().getBBox();

      var dummyLabel = dummyAxis.append('text').attr('class', 'd2b-axis-label d2b-' + axis.type + '-label').text(info.label);
      info.labelBox = dummyLabel.node().getBBox();

      dummyAxis.remove();
    }

    function labelAnchor(axis) {
      if (!axis.data) return;
      var info = axis.info,
          vert = ['y', 'y2'].indexOf(axis.type) > -1;
      return info.labelOrient2 === 'start' && vert ? 'end' : info.labelOrient2 === 'end' && !vert ? 'end' : info.labelOrient2 === 'middle' ? 'middle' : 'start';
    }

    function wrapAnchor(axis) {
      if (!axis.data) return;
      switch (axis.type) {
        case 'x':
          return axis.info.orient === 'inner' ? 'end' : 'start';
        case 'x2':
          return axis.info.orient === 'outer' ? 'end' : 'start';
        case 'y':
        case 'y2':
          return 'middle';
        default:
          return 'start';
      }
    }

    function labelY(axis) {
      if (!axis.data) return;
      var info = axis.info;

      switch (axis.type + ' ' + info.orient + ' ' + info.labelOrient1) {
        case 'x inner inner':
        case 'x2 outer outer':
          return -info.axisBox.height - labelPad;
        case 'x inner outer':
        case 'x2 outer inner':
          return info.labelBox.height + labelPad;
        case 'x outer inner':
        case 'x2 inner outer':
        case 'y inner outer':
        case 'y2 outer inner':
          return -labelPad;
        case 'x outer outer':
        case 'x2 inner inner':
          return info.labelBox.height + info.axisBox.height + labelPad;
        case 'y inner inner':
        case 'y2 outer outer':
          return info.labelBox.height + info.axisBox.width + labelPad;
        case 'y outer inner':
        case 'y2 inner outer':
          return info.labelBox.height + labelPad;
        case 'y outer outer':
        case 'y2 inner inner':
          return -info.axisBox.width - labelPad;
      }
    }

    function labelX(axis, extent) {
      if (!axis.data) return;
      return axis.info.labelOrient2 === 'start' ? 0 : axis.info.labelOrient2 === 'middle' ? extent / 2 : extent;
    }

    function dynamicPadding(axes) {
      var padding = { top: 0, left: 0, right: 0, bottom: 0 };

      if (axes.x.data) {
        if (axes.x.info.orient === 'outer') padding.bottom += axes.x.info.axisBox.height;
        if (axes.x.info.labelOrient1 === 'outer') padding.bottom += axes.x.info.labelBox.height + labelPad;
      }

      if (axes.x2.data) {
        if (axes.x2.info.orient === 'outer') padding.top += axes.x2.info.axisBox.height;
        if (axes.x2.info.labelOrient1 === 'outer') padding.top += axes.x2.info.labelBox.height;
      }

      if (axes.y.data) {
        if (axes.y.info.orient === 'outer') padding.left += axes.y.info.axisBox.width;
        if (axes.y.info.labelOrient1 === 'outer') padding.left += axes.y.info.labelBox.height;
      }

      if (axes.y2.data) {
        if (axes.y2.info.orient === 'outer') padding.right += axes.y2.info.axisBox.width;
        if (axes.y2.info.labelOrient1 === 'outer') padding.right += axes.y2.info.labelBox.height + labelPad;
      }

      padding.top = Math.max(padding.top, 10);
      padding.bottom = Math.max(padding.bottom, 10);
      padding.left = Math.max(padding.left, 10);
      padding.right = Math.max(padding.right, 10);

      return padding;
    }

    function wrapTicks(el, axis) {
      if (!axis.data) return;
      var length = axis.info.wrapLength,
          anchor = axis.info.wrapAnchor;
      el.selectAll('.tick text').each(function () {
        var tick = d3.select(this);
        if (oreq(tick.html(), '').indexOf('tspan') === -1) this.storeText = tick.text();
        tick.text('');
      }).call(textWrap, function () {
        return this.storeText;
      }, length, anchor);
    }

    // create padding from number or object
    function makePadding(p) {
      return typeof p === 'number' ? { top: p, left: p, right: p, bottom: p } : p;
    }

    // create margin same as padding but default as 0
    function makeMargin(m) {
      return makePadding(m || 0);
    }
  }

  /**
   * d2b.chartPie() returns a d2b
   * pie chart generator
   */
  function pie () {
    var $$ = {};

    var chart = function chart(context) {
      context.call($$.chartFrame);

      // make sure pie, arc, and legend accessors are defined properly
      $$.pie.value($$.value).color($$.color).key($$.key);

      $$.legend.html($$.label).key($$.key).color($$.color);

      $$.tooltip.color(function (d) {
        return d3.rgb($$.color(d.data)).darker(0.3);
      });

      var selection = context.selection ? context.selection() : context;

      selection.each(function (datum) {
        update.call(this, datum, context !== selection ? context : null);
      });

      selection.dispatch('chart-pie-updated', { bubbles: true });

      return chart;
    };

    // percent formater
    var percent = d3.format('.0%');

    // configure model properties
    base(chart, $$).addProp('chartFrame', chartFrame().legendEnabled(true).breadcrumbsEnabled(false)).addProp('legend', legend().clickable(true).dblclickable(true)).addProp('key', function (d) {
      return d.label;
    }).addProp('pie', svgPie()).addProp('tooltip', tooltip().followMouse(true).html(function (d) {
      return '<b>' + $$.label(d.data) + '</b>: ' + $$.value(d.data) + ' (' + percent(d.__percent__) + ')';
    })).addPropFunctor('values', function (d) {
      return d;
    }).addPropFunctor('duration', 250).addPropFunctor('donutRatio', 0).addPropFunctor('at', 'center center').addPropFunctor('showPercent', function (d, total) {
      return $$.value(d) / total > 0.03;
    }).addPropFunctor('radius', function (d, w, h) {
      return Math.min(w, h) / 2;
    }).addPropFunctor('color', function (d) {
      return color(d.label);
    }).addPropFunctor('value', function (d) {
      return d.value;
    }).addPropFunctor('arcLabel', null).addPropFunctor('label', function (d) {
      return d.label;
    });

    // update chart
    function update(datum, transition) {
      var el = d3.select(this),
          selection = el.select('.d2b-chart-container'),
          size = selection.node().__size__,
          radius = $$.radius(datum, size.width, size.height),
          donutRatio = $$.donutRatio(datum),
          legendEmpty = $$.legend.empty(),
          values = $$.values(datum),
          filtered = values.filter(function (d) {
        return !legendEmpty(d);
      });

      $$.pie.values(filtered);
      $$.legend.values(values);

      // legend functionality
      el.select('.d2b-legend-container').call($$.legend).on('change', function () {
        return el.transition().duration($$.duration(datum)).call(chart);
      }).selectAll('.d2b-legend-item').on('mouseover', function (d) {
        arcGrow.call(this, el, d, 1.03);
      }).on('mouseout', function (d) {
        arcGrow.call(this, el, d);
      });

      // get pie total
      var total = d3.sum(filtered, function (d) {
        return $$.value(d);
      });

      // select and enter pie chart 'g' element.
      var chartGroup = selection.selectAll('.d2b-pie-chart').data([filtered]);
      var chartGroupEnter = chartGroup.enter().append('g').attr('class', 'd2b-pie-chart');

      chartGroup = chartGroup.merge(chartGroupEnter);

      if (transition) chartGroup = chartGroup.transition(transition);

      $$.pie.arc().innerRadius(radius * donutRatio).outerRadius(radius);

      chartGroup.call($$.pie);

      var arcGroup = selection.selectAll('.d2b-pie-arc').each(function (d) {
        // store inner and outer radii so that they can be used for hover
        // transitions
        d.__innerRadius__ = radius * donutRatio;
        d.__outerRadius__ = radius;

        // store percent for use with the tooltip
        d.__percent__ = d.value / total;
      }).on('mouseover', function (d) {
        arcGrow.call(this, el, d.data, 1.03);
      }).on('mouseout', function (d) {
        arcGrow.call(this, el, d.data);
      }).call($$.tooltip);

      var arcPercent = arcGroup.selectAll('.d2b-pie-arc-percent').data(function (d) {
        return [d];
      });

      arcPercent.enter().append('g').attr('class', 'd2b-pie-arc-percent').append('text').attr('y', 6);

      arcGroup.each(function () {
        var elem = d3.select(this),
            current = elem.select('.d2b-pie-arc path').node().current,
            percentGroup = elem.select('.d2b-pie-arc-percent'),
            percentText = percentGroup.select('text').node();
        percentGroup.node().current = current;
        percentText.current = percentText.current || 0;
      });

      if (transition) {
        arcGroup = arcGroup.each(function (d) {
          d.transitioning = true;
        }).transition(transition).on('end', function (d) {
          d.transitioning = false;
        });
      }

      var arcText = arcGroup.select('.d2b-pie-arc-percent').call(tweenCentroid, $$.pie.arc()).select('text');

      arcText.each(function (d) {
        var arcLabel = $$.arcLabel(d.data);
        var text = d3.select(this);

        if (transition) text = text.transition(transition);

        // if arc label is non-null use percents
        if (arcLabel) {
          text.text(arcLabel);
        } else {
          text.call(tweenNumber, $$.value(d.data) / total, percent).style('opacity', function (d) {
            return $$.showPercent.call(this, d.data, total) ? 1 : 0;
          });
        }
      });

      var coords = chartCoords(datum, radius, size);

      if (isNaN(coords.x) || isNaN(coords.y)) return;

      chartGroupEnter.attr('transform', 'translate(' + coords.x + ', ' + coords.y + ')');
      chartGroup.attr('transform', 'translate(' + coords.x + ', ' + coords.y + ')');
    }

    // Position the pie chart according to the 'at' string (e.g. 'center left',
    // 'top center', ..). Unless at is an object like {x: , y:}, then position
    // according to these coordinates.
    function chartCoords(datum, radius, size) {
      var coords = $$.at(datum, size.width, size.height, radius);

      if ((typeof coords === 'undefined' ? 'undefined' : _typeof(coords)) !== 'object') {
        coords = coords.split(' ');
        var at = { x: coords[1], y: coords[0] };
        coords = {};
        switch (at.x) {
          case 'left':
            coords.x = radius;
            break;
          case 'center':
          case 'middle':
            coords.x = size.width / 2;
            break;
          case 'right':
          default:
            coords.x = size.width - radius;
        }

        switch (at.y) {
          case 'bottom':
            coords.y = size.height - radius;
            break;
          case 'center':
          case 'middle':
            coords.y = size.height / 2;
            break;
          case 'top':
          default:
            coords.y = radius;
        }
      }

      return coords;
    }

    function arcGrow(el, d) {
      var multiplier = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 1;

      var arc = $$.pie.arc();
      var transitioning = false;

      arc.outerRadius(function (d) {
        return d.outerRadius;
      }).innerRadius(function (d) {
        return d.innerRadius;
      });

      var arcSvg = el.selectAll('.d2b-pie-arc').filter(function (dd) {
        return dd.data === d;
      }).each(function (d) {
        transitioning = transitioning || d.transitioning;
        d.outerRadius = d.__outerRadius__ * multiplier;
        d.innerRadius = d.__innerRadius__;
      });

      if (transitioning) return;

      arcSvg.select('path').transition().duration(100).call(tweenArc, arc);
    }

    return chart;
  }

  function axis () {

    var $$ = {};

    var chart = function chart(context) {
      context.call($$.chartFrame);

      $$.legend.empty(function (d) {
        return d.data.hidden;
      }).setEmpty(function (d, i, state) {
        return d.data.hidden = state;
      }).html(function (d) {
        return d.label;
      }).key(function (d) {
        return d.label;
      }).color(function (d) {
        return d.color;
      });

      var selection = context.selection ? context.selection() : context;

      selection.each(function (datum) {
        update.call(this, datum, context !== selection ? context : null);
      });

      selection.dispatch('chart-axis-updated', { bubbles: true });

      return chart;
    };

    base(chart, $$).addProp('plane', plane()).addProp('annotation', d3SvgAnnotation.annotation ? d3SvgAnnotation.annotation() : null).addProp('chartFrame', chartFrame().legendEnabled(true).breadcrumbsEnabled(false)).addProp('legend', legend().clickable(true).dblclickable(true)).addPropFunctor('tooltipConfig', function (d) {
      return d.tooltipConfig;
    }).addPropFunctor('duration', 250).addPropFunctor('x', {}).addPropFunctor('y', {}).addPropFunctor('x2', {}).addPropFunctor('y2', {}).addPropFunctor('clipPlane', true).addPropFunctor('annotations', function (d) {
      return d.annotations;
    }).addPropFunctor('groups', function (d) {
      return d.groups;
    }).addPropFunctor('sets', function (d) {
      return d.sets;
    })
    // group functors
    .addPropFunctor('groupLabel', function (d) {
      return d.label;
    }).addPropFunctor('groupColor', function (d) {
      return color($$.groupLabel(d));
    })
    // set functors
    .addPropFunctor('setKey', function (d, i) {
      return i;
    }).addPropFunctor('setGenerators', function (d) {
      return d.generators;
    }).addPropFunctor('setXType', function (d) {
      return d.xType;
    }).addPropFunctor('setYType', function (d) {
      return d.yType;
    }).addPropFunctor('setGraphs', function (d) {
      return d.graphs;
    })
    // graph functors
    .addPropFunctor('graphKey', function (d) {
      return d.label;
    }).addPropFunctor('graphLabel', function (d) {
      return d.label;
    }).addPropFunctor('graphGroup', function (d) {
      return d.group;
    }).addPropFunctor('graphColor', function (d) {
      return color($$.graphLabel(d));
    }).addPropFunctor('graphTooltipConfig', function (d) {
      return d.tooltipConfig;
    }).addPropFunctor('graphAnnotations', function (d) {
      return d.annotations;
    })
    // annotation functors
    .addPropFunctor('annotationKey', function (d, i) {
      return i;
    }).addPropFunctor('annotationXType', function (d) {
      return d.xType;
    }).addPropFunctor('annotationYType', function (d) {
      return d.yType;
    }).addPropFunctor('annotationZ', function (d) {
      return d.z;
    }).addPropFunctor('annotationX', function (d) {
      return d.x;
    }).addPropFunctor('annotationY', function (d) {
      return d.y;
    }).addPropFunctor('annotationX2', function (d) {
      return d.x2;
    }).addPropFunctor('annotationY2', function (d) {
      return d.y2;
    }).addPropFunctor('annotationColor', function (d) {
      return d.color;
    });

    function update(datum, transition) {
      var container = d3.select(this),
          chartContainer = container.select('.d2b-chart-container'),
          chartNode = chartContainer.node(),
          legendContainer = container.select('.d2b-legend-container'),
          size = chartContainer.node().__size__,
          sets = getSets(datum),
          allGraphs = getAllGraphs(sets),
          duration = $$.duration(datum),
          groups = getGroups(datum, sets),
          clipPlane = $$.clipPlane(datum);

      // define chart level annotations
      var annotations = ($$.annotations(datum) || []).slice().map(function (a, i) {
        return {
          key: $$.annotationKey(a, i),
          xType: $$.annotationXType(a) || 'x',
          yType: $$.annotationYType(a) || 'y',
          z: $$.annotationZ(a) || 'front',
          x: $$.annotationX(a),
          y: $$.annotationY(a),
          x2: $$.annotationX2(a),
          y2: $$.annotationY2(a),
          color: $$.annotationColor(a) || 'steelblue',
          data: a
        };
      });

      propagateHidden(groups);

      // make tooltip sticky on the chart node because tooltipAxis requires
      // one instance per axisChart
      var tooltip = chartNode.tooltip = chartNode.tooltip || tooltipAxis().trackX(true).trackY(false).threshold(50);

      tooltip.title(function (points) {
        return '' + oreq(points[0].x, points[0].x1, points[0].median);
      }).clear();

      // update functionality
      $$.legend.values(groups);
      legendContainer.call($$.legend).on('change', function () {
        return container.transition().duration(duration).call(chart);
      }).selectAll('.d2b-legend-item').on('mouseover', function (d) {
        return legendMouseover(d, chartContainer);
      }).on('mouseout', function (d) {
        return legendMouseout(d, chartContainer);
      });

      // update plane dimensions, width and height
      $$.plane.size(size);

      var plane = chartContainer.selectAll('.d2b-axis-plane').data([datum]),
          planeUpdate = plane,
          planeEnter = plane.enter().append('g').attr('class', 'd2b-axis-plane');

      planeUpdate = plane = plane.merge(planeEnter);

      // enter axis-set wrapper
      var wrapper = chartContainer.selectAll('.d2b-axis-wrapper').data([datum]),
          wrapperUpdate = wrapper,
          wrapperEnter = wrapper.enter().append('g').attr('class', 'd2b-axis-wrapper');

      wrapperEnter.append('rect').attr('class', 'd2b-axis-background');
      wrapperEnter.append('g').attr('class', 'd2b-axis-back-annotations');
      wrapperEnter.append('g').attr('class', 'd2b-axis-sets');
      wrapperEnter.append('g').attr('class', 'd2b-axis-front-annotations');

      wrapperUpdate = wrapper = wrapper.merge(wrapperEnter);

      var backAnnotationsUpdate = wrapper.select('.d2b-axis-back-annotations'),
          frontAnnotationsUpdate = wrapper.select('.d2b-axis-front-annotations');

      // enter axis-sets
      var set = wrapper.select('.d2b-axis-sets').selectAll('.d2b-axis-set').data(sets, function (d) {
        return d.key;
      }),
          setEnter = set.enter().append('g').attr('class', 'd2b-axis-set'),
          setExit = set.exit();

      set = set.merge(setEnter).order();

      // queue transitions if context is a transition
      if (transition) {
        setExit = setExit.transition(transition);
        wrapperUpdate = wrapperUpdate.transition(transition);
        planeUpdate = planeUpdate.transition(transition);
        backAnnotationsUpdate = backAnnotationsUpdate.transition(transition);
        frontAnnotationsUpdate = frontAnnotationsUpdate.transition(transition);
      }

      // initialze generator and visible point sets
      var visible = {
        x: [],
        x2: [],
        y: [],
        y2: []
      };

      set.each(function (s) {
        var el = d3.select(this),
            graphs = s.graphs.filter(function (g) {
          return !g.data.hidden;
        }),
            graphsRaw = graphs.map(function (g) {
          return g.data;
        });

        // add graph annotations to chart annotations
        graphs.forEach(function (g) {
          annotations = annotations.concat(g.annotations.map(function (a, i) {
            return {
              key: s.key + '-' + g.key + '-' + $$.annotationKey(a, i),
              xType: s.xType,
              yType: s.yType,
              z: $$.annotationZ(a) || 'front',
              x: $$.annotationX(a),
              y: $$.annotationY(a),
              x2: $$.annotationX2(a),
              y2: $$.annotationY2(a),
              color: $$.annotationColor(a) || g.color,
              data: a,
              graph: g.data
            };
          }));
        });

        this.genUpdate = el.selectAll('.d2b-graph-generator').data(s.generators.slice().reverse(), function (d) {
          return d.key;
        });

        this.genEnter = this.genUpdate.enter().append('g').attr('class', 'd2b-graph-generator').style('opacity', 0);

        this.genExit = this.genUpdate.exit();

        this.gen = this.genUpdate.merge(this.genEnter).order();

        var size = this.gen.size();

        this.gen.each(function (d, i) {
          var gen = d3.select(this),
              visiblePoints = d.generator.tooltipGraph(function (graph) {
            if (i < size - 1) return null;
            var tooltipGraph = tooltip.graph(d2bid());

            matchGraph(graph, allGraphs).tooltipConfig(tooltipGraph);
            return tooltipGraph;
          }).color(function (graph) {
            return matchGraph(graph, allGraphs).color;
          }).graphs(graphsRaw).getVisiblePoints(gen);

          if (d.generator.duration) d.generator.duration(duration);

          visiblePoints.forEach(function (point) {
            visible[s.xType].push(point.x);
            visible[s.yType].push(point.y);
          });
        });
      });

      var xData = $$.x(datum, visible.x),
          yData = $$.y(datum, visible.y),
          x2Data = $$.x2(datum, visible.x2),
          y2Data = $$.y2(datum, visible.y2);

      setupAxis(xData, visible.x, axisDefaults.x);
      setupAxis(yData, visible.y, axisDefaults.y);
      setupAxis(x2Data, visible.x2, axisDefaults.x2);
      setupAxis(y2Data, visible.y2, axisDefaults.y2);

      $$.plane.axis(function (d) {
        return d.__axis__;
      }).x(xData.__axis__ && visible.x.length ? xData : null).y(yData.__axis__ && visible.y.length ? yData : null).x2(x2Data.__axis__ && visible.x2.length ? x2Data : null).y2(y2Data.__axis__ && visible.y2.length ? y2Data : null);

      // update plane
      planeEnter.call($$.plane);
      planeUpdate.call($$.plane);

      // after plane update, fetch plane box
      var planeBox = $$.plane.box(plane);

      // add clip path from plane
      var planeClip = 'url(#' + plane.select('.d2b-clip-plane').attr('id') + ')';
      wrapper.attr('clip-path', clipPlane ? planeClip : '');

      // update the graphs with their generators
      set.each(function (s) {
        var xAxis = s.xType === 'x2' ? x2Data.__axis__ : xData.__axis__,
            yAxis = s.yType === 'y2' ? y2Data.__axis__ : yData.__axis__;

        if (transition) {
          this.genUpdate = this.genUpdate.transition(transition);
          this.genExit = this.genExit.transition(transition).style('opacity', 0);
        }

        this.genExit.remove();

        this.gen.each(function (d) {
          var el = d3.select(this);
          if (transition) el = el.transition(transition);

          d.generator.x(xAxis.scale()).y(yAxis.scale());

          el.style('opacity', 1).call(d.generator);
        });

        d3.select(this).on('change', function () {
          return container.transition().duration(duration).call(chart);
        });
      });

      // remaining transitions and exits
      setExit.style('opacity', 0).remove();

      // position wrapper
      wrapperEnter.attr('transform', 'translate(' + planeBox.left + ', ' + planeBox.top + ')').select('rect.d2b-axis-background').attr('height', Math.max(0, planeBox.height)).attr('width', Math.max(0, planeBox.width));

      wrapperUpdate.attr('transform', 'translate(' + planeBox.left + ', ' + planeBox.top + ')').select('rect.d2b-axis-background').attr('height', Math.max(0, planeBox.height)).attr('width', Math.max(0, planeBox.width));

      // update annotations

      if ($$.annotation) {
        var annotationScales = {
          x: xData.__scale__,
          y: yData.__scale__,
          x2: x2Data.__scale__,
          y2: y2Data.__scale__
        };

        backAnnotationsUpdate.call(updateAnnotations, $$.annotation, annotations.filter(function (a) {
          return a.z === 'back';
        }), annotationScales);

        frontAnnotationsUpdate.call(updateAnnotations, $$.annotation, annotations.filter(function (a) {
          return a.z === 'front';
        }), annotationScales);
      }

      // configure tooltip
      tooltip.row(function (point) {
        var graphLabel = matchGraph(point.graph.data, allGraphs).label;
        return graphLabel + ': ' + oreq(point.y, point.y1, point.median);
      });

      $$.tooltipConfig(tooltip);
      tooltip.svgContainer(wrapper).tracker(wrapper).size(planeBox);
    }

    // defaultz axis components
    var bandDefault = d3.scaleBand(),
        linearDefault = d3.scaleLinear(),
        axisDefaults = {
      x: {
        band: bandDefault.copy(),
        linear: linearDefault.copy(),
        axis: d3.axisBottom()
      },
      y: {
        band: bandDefault.copy(),
        linear: linearDefault.copy(),
        axis: d3.axisLeft()
      },
      x2: {
        band: bandDefault.copy(),
        linear: linearDefault.copy(),
        axis: d3.axisTop()
      },
      y2: {
        band: bandDefault.copy(),
        linear: linearDefault.copy(),
        axis: d3.axisRight()
      }
    };

    function getGroups(d) {
      var sets = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : getSets(d);
      var graphs = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : getAllGraphs(sets);

      var graphGroups = graphs.filter(function (graph) {
        return !graph.group;
      });

      graphGroups.forEach(function (g) {
        g.groupType = 'graph';
        g.groupGraphs = [g];
      });

      return ($$.groups(d) || []).map(function (group) {
        var newGroup = {
          groupType: 'group',
          data: group,
          label: $$.groupLabel(group),
          color: $$.groupColor(group)
        };

        newGroup.groupGraphs = graphs.filter(function (graph) {
          return newGroup.label === graph.group;
        });

        newGroup.groupGraphs.forEach(function (g) {
          g.color = newGroup.color;
        });

        return newGroup;
      }).concat(graphGroups);
    }

    function getSets(d) {
      return $$.sets(d).map(function (set, i) {
        var generatorTypes = {};
        return {
          data: set,
          key: $$.setKey(set, i),
          xType: $$.setXType(set) || 'x',
          yType: $$.setYType(set) || 'y',
          generators: $$.setGenerators(set).map(function (generator, i) {
            var type = generator.type();

            // only annotate first generator
            if (i !== 0) (generator.pannotation || generator.pannotations || function () {})(null);

            generator.annotation($$.annotation).key($$.graphKey);

            generatorTypes[type] = generatorTypes[type] || 0;
            return {
              data: generator,
              key: type + '-' + (generatorTypes[type] += 1),
              generator: generator
            };
          }),
          graphs: getSetGraphs(set)
        };
      });
    }

    function getSetGraphs(d) {
      return $$.setGraphs(d).map(function (graph, i) {
        return {
          data: graph,
          label: $$.graphLabel(graph) || '',
          key: $$.graphKey(graph, i),
          color: $$.graphColor(graph),
          group: $$.graphGroup(graph),
          annotations: $$.graphAnnotations(graph) || [],
          tooltipConfig: $$.graphTooltipConfig(graph) || function () {}
        };
      });
    }

    function getAllGraphs(sets) {
      return [].concat.apply([], sets.map(function (set) {
        return set.graphs;
      }));
    }

    function propagateHidden(groups) {
      groups.forEach(function (group) {
        group.groupGraphs.forEach(function (graph) {
          return graph.data.hidden = group.data.hidden;
        });
      });
    }

    function legendMouseover(d, selection) {
      var graphs = selection.selectAll('.d2b-graph'),
          annotations = selection.selectAll('.d2b-axis-annotation');
      if (!d.groupGraphs.some(function (graph) {
        return !graph.data.hidden;
      })) return;
      graphs.style('opacity', 0.2).filter(function (graph) {
        return d.data === graph.data || (d.groupGraphs.map(function (d) {
          return d.data;
        }) || []).indexOf(graph.data) > -1;
      }).style('opacity', '');

      annotations.style('opacity', 0.2).filter(function (annotation) {
        return d.data === annotation.graph || (d.groupGraphs.map(function (d) {
          return d.data;
        }) || []).indexOf(annotation.graph) > -1;
      }).style('opacity', '');
    }

    function legendMouseout(d, selection) {
      selection.selectAll('.d2b-graph').style('opacity', 1);
      selection.selectAll('.d2b-axis-annotation').style('opacity', 1);
    }

    function matchGraph(graph, allGraphs) {
      return allGraphs.filter(function (g) {
        return g.data === graph || g.data === graph.data;
      })[0];
    }

    function setupAxis(data, points, defaults) {
      if (!points.length) data.hidden = true;

      var axis = data.axis || defaults.axis,
          scale = data.scale ? data.scale.copy() : getScale(points, defaults);

      var domain = scale.domain();

      if (!scale.bandwidth && data.linearPadding) {
        var dist = domain[1] - domain[0];
        domain[0] = domain[0] + dist * data.linearPadding[0];
        domain[1] = domain[1] + dist * data.linearPadding[1];
      }

      scale.domain(domain);
      data.__axis__ = axis.scale(scale);
      data.__scale__ = scale;
    }

    function getScale(points, defaults) {
      var band = points.some(function (d) {
        return isNaN(d);
      }),
          domain = band ? d3.set(points).values() : d3.extent(points).map(function (d) {
        return d || 0;
      }),
          scale = band ? defaults.band : defaults.linear;

      return scale.domain(domain);
    }

    return chart;
  }

  /**
   * d2b.chartSunburst() returns a d2b
   * sunburst chart generator
   */
  function sunburst () {

    var $$ = {};

    // chart updater
    var chart = function chart(context) {
      context.call($$.chartFrame);

      // configure sunburst
      $$.sunburst.label($$.label).color($$.color);
      // configure breadcrumbs
      $$.breadcrumbs.color(function (d) {
        return $$.color(d.data);
      }).key(function (d, i) {
        return i;
      });
      // configure tooltip
      $$.tooltip.color(function (d) {
        return $$.color(d.data);
      });

      var selection = context.selection ? context.selection() : context;

      selection.each(function (datum) {
        update.call(this, datum, context !== selection ? context : null);
      });

      selection.dispatch('chart-sunburst-updated', { bubbles: true });

      return chart;
    };

    // configure chart properties
    base(chart, $$).addProp('chartFrame', chartFrame().legendEnabled(false).breadcrumbsEnabled(true)).addProp('sunburst', svgSunburst()).addProp('breadcrumbs', breadcrumbs().html(function (d) {
      return '<div class = \'d2b-sunburst-breadcrumb\'>' + tipTemplate(d) + '</div>';
    })).addProp('tooltip', tooltip().followMouse(true).html(function (d) {
      return '<div class = \'d2b-sunburst-tooltip\'>' + tipTemplate(d) + '</div>';
    })).addPropFunctor('label', function (d) {
      return d.label;
    }).addPropFunctor('color', function (d) {
      return color($$.label(d));
    }).addPropFunctor('outerRadius', function (d, w, h) {
      return Math.min(w, h) / 2;
    }).addPropFunctor('innerRadius', function (d, w, h) {
      return Math.min(50, Math.min(w, h) / 4);
    });

    // helpers
    var format = d3.format(',.0f'),
        formatPercent = d3.format('.1%');

    var tipTemplate = function tipTemplate(d) {
      var percent = d.value / d.selected.value;
      var percentText = percent > 1 ? '' : '<div class = \'d2b-sunburst-percent\'>\n        ' + formatPercent(d.value / d.selected.value) + '\n      </div>';

      return '\n      <div class = \'d2b-sunburst-label\'>\n        ' + $$.label(d.data) + '\n      </div>\n      <div class = \'d2b-sunburst-value\'>\n        ' + format(d.value) + '\n        ' + percentText + '\n      </div>\n    ';
    };

    // update breadcrumbs
    function setBreadcrumbs(el, data) {
      el.select('.d2b-breadcrumbs-container').datum(data).transition('sunburst-breadcrumbs').duration(100).call($$.breadcrumbs);
    }

    // define mouseover and click events
    function defineEvents(el) {
      var sunburstChart = el.select('.d2b-sunburst-chart'),
          root = el.selectAll('.d2b-sunburst-arc.d2b-sunburst-level-0').datum(),
          selected = root.selected;

      setBreadcrumbs(el, [selected]);
      sunburstChart.selectAll('.d2b-sunburst-arc').call($$.tooltip.clear).call($$.tooltip).on('mouseover.breadcrumbs', function (d) {
        var ancestors = d.ancestors();
        ancestors = ancestors.slice(0, ancestors.indexOf(selected) + 1);
        setBreadcrumbs(el, ancestors.reverse());
      }).on('mouseout.breadcrumbs', function () {
        return setBreadcrumbs(el, [selected]);
      });

      sunburstChart.on('mouseout', function () {
        return defineEvents(el);
      }).on('click', function () {
        return defineEvents(el);
      });
    }

    // update sunburst
    function update(datum, transition) {
      var el = d3.select(this),
          selection = el.select('.d2b-chart-container'),
          size = selection.node().__size__,
          transform = 'translate(' + size.width / 2 + ', ' + size.height / 2 + ')';

      var sunburstChart = selection.selectAll('.d2b-sunburst-chart').data(function (d) {
        return [d];
      }),
          sunburstChartEnter = sunburstChart.enter().append('g').attr('transform', transform).attr('class', 'd2b-sunburst-chart');

      sunburstChart = sunburstChart.merge(sunburstChartEnter);

      if (transition) {
        sunburstChart = sunburstChart.transition(transition);
      }

      $$.sunburst.outerRadius($$.outerRadius(datum, size.width, size.height)).innerRadius($$.innerRadius(datum, size.width, size.height));

      sunburstChart.attr('transform', transform).call($$.sunburst);

      defineEvents(el);
    }

    return chart;
  }

  function sankey$2 () {

    var $$ = {};

    function chart(context) {
      context.call($$.chartFrame);

      var selection = context.selection ? context.selection() : context;

      selection.each(function (datum) {
        update.call(this, datum, context !== selection ? context : null);
      });

      selection.dispatch('chart-sankey-updated', { bubbles: true });

      return chart;
    }

    function update(datum, transition) {
      var el = d3.select(this),
          selection = el.select('.d2b-chart-container'),
          size = selection.node().__size__;

      var sankeyChart = selection.selectAll('.d2b-sankey-chart').data(function (d) {
        return [d];
      }),
          sankeyChartEnter = sankeyChart.enter().append('g').attr('class', 'd2b-sankey-chart');

      sankeyChart = sankeyChart.merge(sankeyChartEnter);

      if (transition) {
        sankeyChart = sankeyChart.transition(transition);
      }

      sankeyChart.call($$.sankey.size(size));

      sankeyChart.selectAll('.d2b-sankey-link').call($$.linkTooltip);

      sankeyChart.selectAll('.d2b-sankey-node').call($$.nodeTooltip);

      return chart;
    }

    var defaultNodeTooltip = tooltip().html(function (d) {
      return '\n          <b>' + d.key + '</b>:\n          ' + d.value + '\n        ';
    }).color(function (d) {
      return d.color;
    }).followMouse(true);

    var defaultLinkTooltip = tooltip().html(function (d) {
      return '\n          <b>' + d.source.key + '</b>\n          <i class=\'fa fa-arrow-right d2b-sankey-link-arrow\' aria-hidden=\'true\'></i>\n          <b>' + d.target.key + '</b>:\n          ' + d.value + '\n        ';
    }).color('#444').followMouse(true);

    // configure the model
    base(chart, $$).addProp('chartFrame', chartFrame().legendEnabled(false).breadcrumbsEnabled(false)).addProp('sankey', sankey$1()).addProp('nodeTooltip', defaultNodeTooltip).addProp('linkTooltip', defaultLinkTooltip);

    return chart;
  }

  exports.version = version;
  exports.textWrap = textWrap;
  exports.textWrapPX = textWrapPX;
  exports.tweenArc = tweenArc;
  exports.tweenNumber = tweenNumber;
  exports.tweenCentroid = tweenCentroid;
  exports.tooltip = tooltip;
  exports.tooltipAxis = tooltipAxis;
  exports.stack = stack;
  exports.breadcrumbs = breadcrumbs;
  exports.legend = legend;
  exports.chartFrame = chartFrame;
  exports.defaultColor = color;
  exports.id = d2bid;
  exports.color = color;
  exports.omit = omit;
  exports.mean = mean;
  exports.median = median;
  exports.mode = mode;
  exports.range = range;
  exports.midpoint = midpoint;
  exports.toDegrees = toDegrees;
  exports.toRadians = toRadians;
  exports.modelBase = base;
  exports.symbolMars = mars;
  exports.symbolVenus = venus;
  exports.point = point;
  exports.svgPie = svgPie;
  exports.svgLine = line$1;
  exports.svgArea = area$1;
  exports.svgScatter = scatter;
  exports.svgBar = bar;
  exports.svgBoxPlot = boxPlot;
  exports.svgBubblePack = bubblePack;
  exports.svgSunburst = svgSunburst;
  exports.svgSankey = sankey$1;
  exports.plane = plane;
  exports.box = box;
  exports.chartPie = pie;
  exports.chartAxis = axis;
  exports.chartSunburst = sunburst;
  exports.chartSankey = sankey$2;

}((this.d2b = this.d2b || {}),d3,d3,d3,d3));"></script></p>
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<h2 align="left">Werbeumsätze 2019 nach Rubrik</h2>
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<h3>Klicken Sie auf die einzelnen Segmente für eine feinere Betrachtung. Durch Anklicken des grauen Rings gelangen Sie wieder eine Ebene zurück.</h3>
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<p>Online-Werbung wächst auch weiter, allerdings langsamer – mit Ausnahme der Werbung auf mobilen Endgeräten. Wir erwarten für mobile Werbung weiterhin ein deutliches Wachstum.</p>
<p>Die Print-Werbeträger entwickeln sich weiterhin rückläufig – wie in den letzten Jahren. Wir erwarten, dass stärkere Investitionen in neue Produkte und in die Vermarktung der Verlage diesen Trend verlangsamen – auch wenn dies noch nicht in diesem Jahr in den Gesamtmarktzahlen zu sehen sein dürfte. Wir sehen vor allem in der Zusammenarbeit mit regionalen Kunden bei einigen regionalen Verlagen schon vielversprechende Wege.</p>
<p>Für den Media Index wertet SCHICKLER zahlreiche Quellen aus. Der Index umfasst die Ausgaben für alle Formen kommerzieller Kommunikation und zeichnet daraus ein Gesamtbild des Marktes.</p>
<p><a href="https://www.horizont.net/medien/nachrichten/exklusive-schickler-auswertung-so-viel-werbegeld-fliesst-2019-in-die-medienkanaele-tv-print-digital--co-173057?utm_medium=Social&utm_source=Twitter#Echobox=1550735059">Mehr zu den Studienergebnissen lesen Sie hier.</a></p>
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<p>Der Beitrag <a href="https://www.schickler.de/2019/03/schickler-media-index-das-geben-unternehmen-2019-fuer-die-medienkanaele-tv-print-digital-co-aus/">SCHICKLER Media Index: Das geben Unternehmen 2019 für die Medienkanäle TV, Print, Digital &#038; Co aus</a> erschien zuerst auf <a href="https://www.schickler.de">Schickler Unternehmensberatung aus Hamburg</a>.</p>
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