pie.js 4.9 KB
AmCharts.AmPieChart=AmCharts.Class({inherits:AmCharts.AmSlicedChart,construct:function(e){this.type="pie";AmCharts.AmPieChart.base.construct.call(this,e);this.cname="AmPieChart";this.pieBrightnessStep=30;this.minRadius=10;this.depth3D=0;this.startAngle=90;this.angle=this.innerRadius=0;this.startRadius="500%";this.pullOutRadius="20%";this.labelRadius=20;this.labelText="[[title]]: [[percents]]%";this.balloonText="[[title]]: [[percents]]% ([[value]])\n[[description]]";this.previousScale=1;AmCharts.applyTheme(this,
e,this.cname)},drawChart:function(){AmCharts.AmPieChart.base.drawChart.call(this);var e=this.chartData;if(AmCharts.ifArray(e)){if(0<this.realWidth&&0<this.realHeight){AmCharts.VML&&(this.startAlpha=1);var f=this.startDuration,c=this.container,b=this.updateWidth();this.realWidth=b;var h=this.updateHeight();this.realHeight=h;var d=AmCharts.toCoordinate,k=d(this.marginLeft,b),a=d(this.marginRight,b),t=d(this.marginTop,h)+this.getTitleHeight(),m=d(this.marginBottom,h),w,x,g,v=AmCharts.toNumber(this.labelRadius),
q=this.measureMaxLabel();q>this.maxLabelWidth&&(q=this.maxLabelWidth);this.labelText&&this.labelsEnabled||(v=q=0);w=void 0===this.pieX?(b-k-a)/2+k:d(this.pieX,this.realWidth);x=void 0===this.pieY?(h-t-m)/2+t:d(this.pieY,h);g=d(this.radius,b,h);g||(b=0<=v?b-k-a-2*q:b-k-a,h=h-t-m,g=Math.min(b,h),h<b&&(g/=1-this.angle/90,g>b&&(g=b)),h=AmCharts.toCoordinate(this.pullOutRadius,g),g=(0<=v?g-1.8*(v+h):g-1.8*h)/2);g<this.minRadius&&(g=this.minRadius);h=d(this.pullOutRadius,g);t=AmCharts.toCoordinate(this.startRadius,
g);d=d(this.innerRadius,g);d>=g&&(d=g-1);m=AmCharts.fitToBounds(this.startAngle,0,360);0<this.depth3D&&(m=270<=m?270:90);m-=90;b=g-g*this.angle/90;for(k=0;k<e.length;k++)if(a=e[k],!0!==a.hidden&&0<a.percents){var n=360*a.percents/100,q=Math.sin((m+n/2)/180*Math.PI),y=-Math.cos((m+n/2)/180*Math.PI)*(b/g),p=this.outlineColor;p||(p=a.color);var z=this.alpha;isNaN(a.alpha)||(z=a.alpha);p={fill:a.color,stroke:p,"stroke-width":this.outlineThickness,"stroke-opacity":this.outlineAlpha,"fill-opacity":z};a.url&&
(p.cursor="pointer");p=AmCharts.wedge(c,w,x,m,n,g,b,d,this.depth3D,p,this.gradientRatio,a.pattern);this.addEventListeners(p,a);a.startAngle=m;e[k].wedge=p;0<f&&(this.chartCreated||p.setAttr("opacity",this.startAlpha));a.ix=q;a.iy=y;a.wedge=p;a.index=k;if(this.labelsEnabled&&this.labelText&&a.percents>=this.hideLabelsPercent){var l=m+n/2;360<l&&(l-=360);var r=v;isNaN(a.labelRadius)||(r=a.labelRadius);var n=w+q*(g+r),z=x+y*(g+r),A,u=0;if(0<=r){var B;90>=l&&0<=l?(B=0,A="start",u=8):90<=l&&180>l?(B=1,
A="start",u=8):180<=l&&270>l?(B=2,A="end",u=-8):270<=l&&360>l&&(B=3,A="end",u=-8);a.labelQuarter=B}else A="middle";var l=this.formatString(this.labelText,a),s=this.labelFunction;s&&(l=s(a,l));s=a.labelColor;s||(s=this.color);l=AmCharts.wrappedText(c,l,s,this.fontFamily,this.fontSize,A,!1,this.maxLabelWidth);l.translate(n+1.5*u,z);l.node.style.pointerEvents="none";a.tx=n+1.5*u;a.ty=z;0<=r?(r=l.getBBox(),s=AmCharts.rect(c,r.width+5,r.height+5,"#FFFFFF",.005),s.translate(n+1.5*u+r.x,z+r.y),a.hitRect=
s,p.push(l),p.push(s)):this.freeLabelsSet.push(l);a.label=l;a.tx=n;a.tx2=n+u;a.tx0=w+q*g;a.ty0=x+y*g}n=d+(g-d)/2;a.pulled&&(n+=this.pullOutRadiusReal);a.balloonX=q*n+w;a.balloonY=y*n+x;a.startX=Math.round(q*t);a.startY=Math.round(y*t);a.pullX=Math.round(q*h);a.pullY=Math.round(y*h);this.graphsSet.push(p);(0===a.alpha||0<f&&!this.chartCreated)&&p.hide();m+=360*a.percents/100}0<v&&!this.labelRadiusField&&this.arrangeLabels();this.pieXReal=w;this.pieYReal=x;this.radiusReal=g;this.innerRadiusReal=d;0<
v&&this.drawTicks();this.initialStart();this.setDepths()}(e=this.legend)&&e.invalidateSize()}else this.cleanChart();this.dispDUpd();this.chartCreated=!0},setDepths:function(){var e=this.chartData,f;for(f=0;f<e.length;f++){var c=e[f],b=c.wedge,c=c.startAngle;0<=c&&180>c?b.toFront():180<=c&&b.toBack()}},arrangeLabels:function(){var e=this.chartData,f=e.length,c,b;for(b=f-1;0<=b;b--)c=e[b],0!==c.labelQuarter||c.hidden||this.checkOverlapping(b,c,0,!0,0);for(b=0;b<f;b++)c=e[b],1!=c.labelQuarter||c.hidden||
this.checkOverlapping(b,c,1,!1,0);for(b=f-1;0<=b;b--)c=e[b],2!=c.labelQuarter||c.hidden||this.checkOverlapping(b,c,2,!0,0);for(b=0;b<f;b++)c=e[b],3!=c.labelQuarter||c.hidden||this.checkOverlapping(b,c,3,!1,0)},checkOverlapping:function(e,f,c,b,h){var d,k,a=this.chartData,t=a.length,m=f.label;if(m){if(!0===b)for(k=e+1;k<t;k++)a[k].labelQuarter==c&&(d=this.checkOverlappingReal(f,a[k],c))&&(k=t);else for(k=e-1;0<=k;k--)a[k].labelQuarter==c&&(d=this.checkOverlappingReal(f,a[k],c))&&(k=0);!0===d&&100>
h&&(d=f.ty+3*f.iy,f.ty=d,m.translate(f.tx2,d),f.hitRect&&(m=m.getBBox(),f.hitRect.translate(f.tx2+m.x,d+m.y)),this.checkOverlapping(e,f,c,b,h+1))}},checkOverlappingReal:function(e,f,c){var b=!1,h=e.label,d=f.label;e.labelQuarter!=c||e.hidden||f.hidden||!d||(h=h.getBBox(),c={},c.width=h.width,c.height=h.height,c.y=e.ty,c.x=e.tx,e=d.getBBox(),d={},d.width=e.width,d.height=e.height,d.y=f.ty,d.x=f.tx,AmCharts.hitTest(c,d)&&(b=!0));return b}});