您必须自定义源代码以实现您想要的图表。
CanvasJS 具有非商业用途的知识共享+署名许可。但此许可证不允许对源代码进行任何修改。因此，您将不得不购买商业许可证。我没有他们的商业许可证，所以我无法帮助您进行所需的修改。
由于无论如何您都必须自定义修改 CanvasJS，因此创建自己的自定义代码可能会更容易；-)
这是一些示例起始代码，用于计算和绘制圆环图的弧线。添加文本标签和一些 lineTo 连接器应该很容易。
还有一个演示：http: //jsfiddle.net/m1erickson/UFPQz/
<!doctype html>
<html>
<head>
<link rel="stylesheet" type="text/css" media="all" href="css/reset.css" /> <!-- reset css -->
<script type="text/javascript" src="http://code.jquery.com/jquery.min.js"></script>
<style>
body{ background-color: ivory; }
canvas{border:1px solid red;}
</style>
<script>
$(function(){
var canvas=document.getElementById("canvas");
var ctx=canvas.getContext("2d");
function DonutChart(cx,cy,radius,arcWidth,values,colors){
// save incoming chart definition
this.cx=cx;
this.cy=cy,
this.radius=radius;
this.arcWidth=arcWidth
this.colors=colors;
this.arcRadians=[];
// put spacing between each arc in the chart
this.leadPadding=Math.PI/45; // 3 degrees lead padding on arcs
// parallel arrays holding starting/ending angles of each arc
this.startRadians=[];
this.endRadians=[];
// calc sum of all values
var total=0;
for(var i=0;i<values.length;i++){ total+=values[i]; }
// calc starting & ending radian angles for each arc
var PI2=Math.PI*2;
var accumRadians=0;
var starting=0;
var ending=0;
for(var i=0;i<values.length;i++){
starting=ending+this.leadPadding;
ending=starting+PI2*values[i]/total-this.leadPadding;
this.startRadians.push(starting);
this.endRadians.push(ending);
}
};
// draw all the arcs for this chart
DonutChart.prototype.drawArcs=function(){
ctx.save();
for(var i=0;i<this.startRadians.length;i++){
ctx.beginPath();
ctx.arc(this.cx,this.cy,this.radius,this.startRadians[i],this.endRadians[i]);
ctx.lineWidth=this.arcWidth;
ctx.strokeStyle=this.colors[i];
ctx.stroke();
}
ctx.restore();
}
// TEST: draw the arcs for an example donut chart
var arcs=new DonutChart(150,150,100,10,[250,360,280,250],['red','green','blue','gold']);
arcs.drawArcs();
}); // end $(function(){});
</script>
</head>
<body>
<h4>Example arcs for a donut chart</h4>
<canvas id="canvas" width=300 height=300></canvas>
</body>
</html>
