amCharts绘制甜甜圈

标签：root 甜甜 charts chart amCharts template series0 series1 绘制
案例1

代码案例
<!DOCTYPE html>
<html>
  <head>
    <script src="https://cdn.amcharts.com/lib/5/index.js"></script>
    <script src="https://cdn.amcharts.com/lib/5/percent.js"></script>
    <script src="https://cdn.amcharts.com/lib/5/themes/Animated.js"></script>
    <style>
        #chartdiv {
          width: 550PX;
          height: 280px;
        }
    </style>
  </head>
  <body>
    <div id="chartdiv"></div>
    
    <script>
        am5.ready(function() {
        
        // Create root element
        // https://www.amcharts.com/docs/v5/getting-started/#Root_element
        var root = am5.Root.new("chartdiv");
        
        // Set themes
        // https://www.amcharts.com/docs/v5/concepts/themes/
        root.setThemes([
          am5themes_Animated.new(root)
        ]);
        
        // Create chart
        // https://www.amcharts.com/docs/v5/charts/percent-charts/pie-chart/
        // start and end angle must be set both for chart and series
        var chart = root.container.children.push(
          am5percent.PieChart.new(root, {
            layout: root.verticalLayout
          })
        );
        
        // Create series
        // https://www.amcharts.com/docs/v5/charts/percent-charts/pie-chart/#Series
        // start and end angle must be set both for chart and series
        var series0 = chart.series.push(
          am5percent.PieSeries.new(root, {
            valueField: "value",
            categoryField: "category",
            alignLabels: false,
            radius: am5.percent(100),
            innerRadius: am5.percent(80)
          })
        );
        
        series0.states.create("hidden", {
          startAngle: 180,
          endAngle: 180
        });
        
        series0.slices.template.setAll({
          fillOpacity: 0.5,
          strokeOpacity: 0,
          templateField: "settings"
        });
        
        series0.slices.template.states.create("hover", { scale: 1 });
        series0.slices.template.states.create("active", { shiftRadius:0 });
        
        series0.labels.template.setAll({
          templateField: "settings"
        });
        
        series0.ticks.template.setAll({
          templateField: "settings"
        });
        
        series0.labels.template.setAll({
          textType: "circular",
          radius: 30
        });
        
        // Set data
        // https://www.amcharts.com/docs/v5/charts/percent-charts/pie-chart/#Setting_data
        series0.data.setAll([
          {
            category: "First + Second",
            value: 60
          },
          {
            category: "Unused",
            value: 30,
            settings: { forceHidden: true }
          }
        ]);
        
        // Create series
        // https://www.amcharts.com/docs/v5/charts/percent-charts/pie-chart/#Series
        // start and end angle must be set both for chart and series
        var series1 = chart.series.push(
          am5percent.PieSeries.new(root, {
            radius: am5.percent(95),
            innerRadius: am5.percent(85),
            valueField: "value",
            categoryField: "category",
            alignLabels: false
          })
        );
        
        series1.states.create("hidden", {
          startAngle: 180,
          endAngle: 180
        });
        
        series1.slices.template.setAll({
          templateField: "sliceSettings",
          strokeOpacity: 0
        });
        
        series1.labels.template.setAll({
          textType: "circular"
        });
        
        series1.labels.template.adapters.add("radius", function (radius, target) {
          var dataItem = target.dataItem;
          var slice = dataItem.get("slice");
          return -(slice.get("radius") - slice.get("innerRadius")) / 2 - 10;
        });
        
        series1.slices.template.states.create("hover", { scale: 1 });
        series1.slices.template.states.create("active", { shiftRadius:0 });
        
        series1.ticks.template.setAll({
          forceHidden: true
        });
        
        // Set data
        // https://www.amcharts.com/docs/v5/charts/percent-charts/pie-chart/#Setting_data
        series1.data.setAll([{
          category: "First",
          value: 30
        }, {
          category: "Second",
          value: 30
        }, {
          category: "Remaining",
          value: 30,
          sliceSettings: { fill: am5.color(0xdedede) }
        }]);
        
        }); // end am5.ready()
    </script>       
  </body>
</html>
效果图
点击查看详情
标签：root,甜甜,charts,chart,amCharts,template,series0,series1,绘制
From： https://www.cnblogs.com/dogleftover/p/18222601
案例1

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