index.html
<!DOCTYPE html>
<html>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Geometry Styles - Marker with echarts</title>
  <style type="text/css">
    html,body{margin:0px;height:100%;width:100%}
    .container{width:100%;height:100%}
  </style>
  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/[email protected]/dist/maptalks.css">
  <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/[email protected]/dist/maptalks.min.js"></script>
  <body>

    <script type="text/javascript" src="echarts.simple.min.js"></script>
    <div id="map" class="container"></div>

    <script>
      var map = new maptalks.Map('map', {
        center: [-0.113049,51.49856],
        zoom: 14,
        baseLayer: new maptalks.TileLayer('base', {
          urlTemplate: 'http://{s}.basemaps.cartocdn.com/light_all/{z}/{x}/{y}.png',
          subdomains: ['a','b','c','d'],
          attribution: '&copy; <a href="http://osm.org">OpenStreetMap</a> contributors, &copy; <a href="https://carto.com/">CARTO</a>'
        })
      });
      var chartDom = document.createElement('div');
      chartDom.style.cssText = 'width:650px; height:300px;';
      createChart(chartDom);

      var echartsUI = new maptalks.ui.UIMarker([-0.113049,51.49856], {
        'draggable'     : true,
        'content'       : chartDom
      }).addTo(map).show();

      // ECharts's chart creation
      function createChart(dom) {
        var myChart = echarts.init(dom);
        var option = {
          title : {
            x:'center'
          },
          tooltip : {
            trigger: 'item',
            formatter: '{a} <br/>{b} : {c} ({d}%)'
          },
          legend: {
            x : 'center',
            y : 'bottom',
            data:['rose1', 'rose2', 'rose3', 'rose4', 'rose5', 'rose6', 'rose7', 'rose8']
          },
          toolbox: {
            show : true,
            feature : {
              mark : { show: true },
              dataView : { show: true, readOnly: false },
              magicType : {
                show: true,
                type: ['pie', 'funnel']
              },
              restore : { show: true },
              saveAsImage : { show: true }
            }
          },
          calculable : true,
          series : [
            {
              name:'Area mode',
              type:'pie',
              radius : [30, 110],
              center : ['50%', '50%'],
              roseType : 'area',
              data:[
                { value:10, name:'rose1' },
                { value:5, name:'rose2' },
                { value:15, name:'rose3' },
                { value:25, name:'rose4' },
                { value:20, name:'rose5' },
                { value:35, name:'rose6' },
                { value:30, name:'rose7' },
                { value:40, name:'rose8' }
              ]
            }
          ]
        };
        myChart.setOption(option);
      }

    </script>
  </body>
</html>
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