chartjs-chart-funnel/build/index.umd.min.js

Chart.js module for charting funnel charts

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/**
     * @license
     *
     * The APCA contrast prediction algorithm is based of the formulas published
     * in the APCA-1.0.98G specification by Myndex. The specification is available at:
     * https://raw.githubusercontent.com/Myndex/apca-w3/master/images/APCAw3_0.1.17_APCA0.0.98G.svg
     *
     * Note that the APCA implementation is still beta, so please update to
     * future versions of chroma.js when they become available.
     *
     * You can read more about the APCA Readability Criterion at
     * https://readtech.org/ARC/
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c=m*((e+120)/360+t*l),i=Pe(o[0]+a*l,n),u=(0!==f?r[0]+l*f:r)*i*(1-i)/2,h=Be(c),d=$e(c);return v(s([255*(i+u*(-.14861*h+1.78277*d)),255*(i+u*(-.29227*h-.90649*d)),255*(i+u*(1.97294*h)),1]))};return c.start=function(t){return null==t?e:(e=t,c)},c.rotations=function(e){return null==e?t:(t=e,c)},c.gamma=function(e){return null==e?n:(n=e,c)},c.hue=function(e){return null==e?r:("array"===l(r=e)?(f=r[1]-r[0],0===f&&(r=r[1])):f=0,c)},c.lightness=function(e){return null==e?o:("array"===l(e)?(o=e,a=e[1]-e[0]):(o=[e,e],a=0),c)},c.scale=()=>v.scale(c),c.hue(r),c},deltaE:function(e,t,r=1,n=1,o=1){var a=function(e){return 360*e/(2*Qe)},s=function(e){return 2*Qe*e/360};e=new x(e),t=new x(t);const[f,l,c]=Array.from(e.lab()),[i,u,h]=Array.from(t.lab()),d=(f+i)/2,b=(Fe(We(l,2)+We(c,2))+Fe(We(u,2)+We(h,2)))/2,g=.5*(1-Fe(We(b,7)/(We(b,7)+We(25,7)))),m=l*(1+g),p=u*(1+g),w=Fe(We(m,2)+We(c,2)),y=Fe(We(p,2)+We(h,2)),k=(w+y)/2,M=a(Ue(c,m)),v=a(Ue(h,p)),N=M>=0?M:M+360,_=v>=0?v:v+360,A=Ve(N-_)>180?(N+_+360)/2:(N+_)/2,j=1-.17*De(s(A-30))+.24*De(s(2*A))+.32*De(s(3*A+6))-.2*De(s(4*A-63));let E=_-N;E=Ve(E)<=180?E:_<=N?E+360:E-360,E=2*Fe(w*y)*He(s(E)/2);const C=i-f,R=y-w,P=1+.015*We(d-50,2)/Fe(20+We(d-50,2)),$=1+.045*k,B=1+.015*k*j,O=30*Je(-We((A-275)/25,2)),L=-(2*Fe(We(k,7)/(We(k,7)+We(25,7))))*He(2*s(O)),Y=Fe(We(C/(r*P),2)+We(R/(n*$),2)+We(E/(o*B),2)+L*(R/(n*$))*(E/(o*B)));return Te(0,Ke(100,Y))},distance:function(e,t,r="lab"){e=new x(e),t=new x(t);const n=e.get(r),o=t.get(r);let a=0;for(let e in n){const t=(n[e]||0)-(o[e]||0);a+=t*t}return Math.sqrt(a)},input:M,interpolate:W,limits:Se,mix:W,random:()=>{let e="#";for(let t=0;t<6;t++)e+="0123456789abcdef".charAt(Oe(16*Le()));return new x(e,"hex")},scale:Ae,scales:et,valid:(...e)=>{try{return new x(...e),!0}catch(e){return!1}}});class St extends t.BarElement{constructor(){super(...arguments),this.align="center",this.next=void 0,this.previous=void 0}getBounds(e=!1){const{x:t,y:r,base:n,width:o,height:a,horizontal:s}=this.getProps(["x","y","base","width","height","horizontal"],e);if(s){const e=Math.abs(t-n),o=a/2;return{left:n-("left"!==this.align?e:0),top:r-o,right:n+("right"!==this.align?e:0),bottom:r+o,horizontal:s}}{const e=Math.abs(r-n),a=o/2,f=t+a;return{left:t-a,top:n-("right"!==this.align?e:0),right:f,bottom:n+("left"!==this.align?e:0),horizontal:s}}}inRange(e,t,r){const n=this.getBounds(r),o=null==e||zt(e,n.left,n.right),a=null==t||zt(t,n.top,n.bottom);return o&&a}inXRange(e,t){return this.inRange(e,null,t)}inYRange(e,t){return this.inRange(null,e,t)}getCenterPoint(e){const{x:t,y:r,base:n,horizontal:o}=this.getProps(["x","y","base","horizontal"],e);return{center:{x:o?n:t,y:o?r:n},left:{x:o?(n+t)/2:t,y:o?r:(n+r)/2},right:{x:o?n-(t-n)/2:t,y:o?r:n-(r+n)/2}}[this.align]}tooltipPosition(e){return this.getCenterPoint(e)}getRange(e){const{width:t,height:r}=this.getProps(["width","height"]);return"x"===e?t:r}computeWayPoints(e=!1){let t=this.options.shrinkAnchor,r=Math.max(Math.min(this.options.shrinkFraction,1),0);0===r&&(t="none",r=1);let n=this.getBounds(e);const o=n.horizontal;let a=!this.next||"top"!==t&&"middle"!==t?n:this.next.getBounds(e),s=!this.previous||"bottom"!==t&&"middle"!==t?n:this.previous.getBounds(e);o||(n=Xt(n),a=Xt(a),s=Xt(s));const f=Math.floor((n.bottom-n.top)*(1-r)),l=Math.floor((n.bottom-n.top-f)/2),c=[],i=[];if("none"===t||"top"===t)c.push([n.left,n.top],[n.right,n.top]);else{let e=1;if("middle"===t){e=l/(Math.floor((s.bottom-s.top)*r*.5)+l)}c.push([n.left+(s.left-n.left)*e,n.top],[n.right+(s.right-n.right)*e,n.top])}if("middle"===t?(c.push([n.right,n.top+l]),c.push([n.right,n.bottom-l]),i.push([n.left,n.top+l]),i.push([n.left,n.bottom-l])):"top"===t&&r<1?(c.push([n.right,n.top+f]),i.push([n.left,n.top+f])):"bottom"===t&&r<1&&(c.push([n.right,n.bottom-f]),i.push([n.left,n.bottom-f])),"none"===t||"bottom"===t)c.push([n.right,n.bottom],[n.left,n.bottom]);else{let e=1;if("middle"===t){e=l/(Math.floor((a.bottom-a.top)*r*.5)+l)}c.push([n.right+(a.right-n.right)*e,n.bottom],[n.left+(a.left-n.left)*e,n.bottom])}return c.push(...i.reverse()),o?c:c.map(([e,t])=>[t,e])}draw(e){const{options:t}=this;e.save(),e.beginPath();const r=this.computeWayPoints();e.moveTo(r[0][0],r[0][1]);for(const t of r.slice(1))e.lineTo(t[0],t[1]);t.backgroundColor&&(e.fillStyle=t.backgroundColor,e.fill()),t.borderColor&&(e.strokeStyle=t.borderColor,e.lineWidth=t.borderWidth,e.stroke()),e.restore()}}St.id="trapezoid",St.defaults={...t.BarElement.defaults,shrinkAnchor:"top",shrinkFraction:1},St.defaultRoutes=t.BarElement.defaultRoutes;class Zt extends t.BarController{getMinMax(e,t){const{max:r}=super.getMinMax(e,t);return{center:{min:-r,max:r},left:{min:0,max:r},right:{min:-r,max:0}}[this.options.align]}update(e){super.update(e);const t=this._cachedMeta.data||[];for(let e=0;e<t.length;e++)t[e].align=this.options.align,t[e].next=t[e+1],t[e].previous=t[e-1]}}Zt.id="funnel",Zt.defaults=r.merge({},[t.BarController.defaults,{dataElementType:St.id,barPercentage:1,align:"center",categoryPercentage:.98}]),Zt.overrides=r.merge({},[t.BarController.overrides,{plugins:{legend:{display:!1},colors:{enabled:!1},datalabels:{anchor:"start",textAlign:"center",font:{size:20},color:e=>Gt(e.chart.getDatasetMeta(e.datasetIndex).data[e.dataIndex].options.backgroundColor,t.Chart.defaults.color,"#ffffff"),formatter:(e,t)=>{var r,n;return`${null!==(n=null===(r=t.chart.data.labels)||void 0===r?void 0:r[t.dataIndex])&&void 0!==n?n:""}\n${(100*e).toLocaleString()}%`}}},scales:{_index_:{display:!1,padding:10,grid:{display:!1}},_value_:{display:!1,beginAtZero:!1,grace:0,grid:{display:!1}}},elements:{trapezoid:{backgroundColor(e){const t=e.chart.data.datasets[e.datasetIndex].data.length;return qt(e.dataIndex,t)}}}}]);class It extends t.Chart{constructor(e,r){super(e,function(e,r,n,o=[],a=[]){t.registry.addControllers(n),Array.isArray(o)?t.registry.addElements(...o):t.registry.addElements(o),Array.isArray(a)?t.registry.addScales(...a):t.registry.addScales(a);const s=r;return s.type=e,s}("funnel",r,Zt,St,[t.CategoryScale,t.LinearScale]))}}It.id=Zt.id,t.registry.addControllers(Zt),t.registry.addElements(St),e.FunnelChart=It,e.FunnelController=Zt,e.TrapezoidElement=St,e.blues=qt,e.pickForegroundColorToBackgroundColor=Gt});
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