我正在使用
javascript库d3.js(
http://d3js.org/)来创建画布数据可视化.我试图做一个弧,但它不接受数组中的数据参数.有人知道我在做错什么吗?这是我的代码:
var chartConfig = { "canvasSize" : 800 } var radius = chartConfig.canvasSize / 2; var pi = Math.PI; var vis = d3.select("#chart").append("svg") .attr("width",radius * 2) .attr("height",radius * 2) .append("g") .attr("transform","translate(" + radius + "," + radius + ")"); var arcData = [ {aS: 0,aE: 45,rI:radius/2,rO:radius} ]; var arc = vis.selectAll("arc").data(arcData).enter().append("arc"); arc.attr("innerRadius",function(d){d.rI}).attr("outerRadius",function(d){d.rO}).attr("class","arc"); function degToRad(degrees){ return degrees * (pi/180); }