Nested donut chart

Integration with amCharts 5

by Flexmonster Pivot Table

HTML

<script src="https://cdn.flexmonster.com/flexmonster.js"></script>
<script src="https://cdn.flexmonster.com/lib/flexmonster.amcharts.js"></script>

<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>
<script src="https://cdn.amcharts.com/lib/5/themes/Material.js"></script>

<div>
  <h2>How to create a nested donut chart</h2>
  <p>
    This example shows how to create a nested donut chart using
    <a
      href="https://www.flexmonster.com/api/all-methods-amcharts/"
      target="_blank"
    >Flexmonster Connector for amCharts</a>.
  </p>
  <p>
    A nested donut chart has several series, which represent different measures.
    To create series for each measure in the slice, we use the Connector's
    <a
      href="https://www.flexmonster.com/api/amcharts-getnumberofmeasures/"
      target="_blank"
    >getNumberOfMeasures()</a>
    and
    <a
      href="https://www.flexmonster.com/api/amcharts-getmeasurenamebyindex/"
      target="_blank"
    >getMeasureNameByIndex()</a> methods (lines 77-80 in the JavaScript box).
  </p>
  <p>
    In this example, we've used the <code>Price</code> and
    <code>Discount</code> measures for the chart. Try adding other measures to
    the slice and see how the chart changes.
  </p>
  <p>
    <a
      href="https://www.flexmonster.com/doc/integration-with-amcharts/"
      target="_blank"
    >Visit our docs to learn more about the integration with amCharts</a>.
  </p>
</div>

<div id="pivotContainer">The component will appear here</div>

<div id="amcharts-container"></div>

CSS

@import url(https://cdn.flexmonster.com/assets/jsfiddle-styles.css);

#amcharts-container {
  margin: 20px 0 20px 0;
  height: 350px;
  font-size: 15px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
}

JavaScript

let pivot = new Flexmonster({
  container: "pivotContainer",
  componentFolder: "https://cdn.flexmonster.com/",
  licenseFilePath: "https://cdn.flexmonster.com/jsfiddle.charts.key",
  toolbar: true,
  height: 400,
  report: {
    dataSource: {
      filename: "data/data.csv"
    },
    slice: {
      rows: [{
        uniqueName: "Country"
      }],
      columns: [{
          uniqueName: "Color",
          filter: {
            exclude: ["color.[white]", "color.[purple]"]
          }
        },
        {
          uniqueName: "[Measures]"
        }
      ],
      measures: [{
          uniqueName: "Price",
          format: "currency"
        },
        {
          uniqueName: "Discount",
          format: "currency"
        }
      ]
    },
    formats: [{
      name: "currency",
      thousandsSeparator: ",",
      decimalSeparator: ".",
      decimalPlaces: 2,
      currencySymbol: "$",
      currencySymbolAlign: "left",
      nullValue: "",
      textAlign: "right",
      isPercent: false
    }]
  },
  reportcomplete: function() {
    pivot.off("reportcomplete");
    createChart();
  }
});

let chart;

function createChart() {
  pivot.amcharts.getData({}, drawChart, updateChart);
}

function drawChart(chartConfig, rawData) {
  // Create root element
  let root = am5.Root.new("amcharts-container");
  root.numberFormatter.set("numberFormat", pivot.amcharts.getNumberFormatPattern(rawData.meta.formats[0]));

  // Set themes
  root.setThemes([
    am5themes_Animated.new(root),
    am5themes_Material.new(root)
  ]);

  // Create chart
  let chart = root.container.children.push(am5percent.PieChart.new(root, {
    layout: root.verticalLayout,
    radius: am5.percent(70),
    innerRadius: am5.percent(35)
  }));

  for (let s = 0; s < pivot.amcharts.getNumberOfMeasures(rawData); s++) {
    // Create series
    let series = chart.series.push(am5percent.PieSeries.new(root, {
      valueField:...