d3甜甜圈图不渲染

d3 Donut chart does not render

本文关键字：甜甜圈 d3      更新时间：2023-09-26

我试图执行从http://bl.ocks.org/mbostock/3887193引用的甜甜圈图表。当我执行它，图表不呈现，它显示我空白页。请帮助。两天来一直在敲我的头。谢谢你的帮助。

<apex:includeScript value="{!URLFOR($Resource.jquery1)}"/>     
<apex:includeScript value="{!URLFOR($Resource.D3)}"/>
<apex:includeScript value="{!URLFOR($Resource.nvD3)}"/> 
 <apex:includeScript value="{!URLFOR($Resource.data)}"/> 
<!--<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.3.3/d3.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/nvd3/1.0.0-beta/nv.d3.min.js"></script>  -->


<script>
var width = 960,
    height = 500,
    radius = Math.min(width, height) / 2;
var color = d3.scale.ordinal()
    .range(["#98abc5", "#8a89a6", "#7b6888", "#6b486b", "#a05d56", "#d0743c", "#ff8c00"]);
var arc = d3.svg.arc()
    .outerRadius(radius - 10)
    .innerRadius(0);
var pie = d3.layout.pie().sort(null)
    .x(function(d){return d.age;});
    .y(function(d){return d.population;});
var svg = d3.select("body").append("svg")
    .attr("width", width)
    .attr("height", height)
    .append("g")
    .attr("transform", "translate(" + width / 2 + "," + height / 2 + ")");
d3.csv("data.csv", function(error, data) {
 console.log(data); 
 data.forEach(function(d) {
    if (isNaN(+d.age)) console.log(d.population);
    d.age = +d.age;
    d.population = +d.population;
  });
  var g = svg.selectAll(".arc")
      .data(pie(data))
    .enter().append("g")
      .attr("class", "arc");
  g.append("path")
      .attr("d", arc)
      .style("fill", function(d) { return color(d.data.age); });
  g.append("text")
      .attr("transform", function(d) { return "translate(" + arc.centroid(d) + ")"; })
      .attr("dy", ".35em")
      .style("text-anchor", "middle")
      .text(function(d) { return d.data.age; });
});
</script>
</apex:page>

首先，您应该检查对d3库的引用，我在那里得到一个错误。尝试使用

<script src="http://d3js.org/d3.v3.min.js" type="text/javascript"></script>
其次，必须将body-div放在脚本的前面，因此代码的开头应该像 
<div id="body" height="50%" width="500px" ></div> 
<script>
var width = 960,
    height = 500,
    radius = Math.min(width, height) / 2;
//...and so on
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