点图层大小

通过形状大小表达数据差异

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
      <link rel="stylesheet" href="https://gw.alipayobjects.com/os/rmsportal/PqLCOJpqoOUfuPRacUzE.css" />
    <title>点图层大小</title>
    <style> ::-webkit-scrollbar{display:none;}html,body{overflow:hidden;margin:0;}
    	#map { position:absolute; top:0; bottom:0; width:100%; }
    </style>
</head>
<body>
<div id="map"></div>
<script>/*Fixing iframe window.innerHeight 0 issue in Safari*/ document.body.clientHeight; </script>
<script src="https://webapi.amap.com/maps?v=1.4.8&key=15cd8a57710d40c9b7c0e3cc120f1200&plugin=Map3D"></script>
<script src="https://gw.alipayobjects.com/os/antv/assets/lib/jquery-3.2.1.min.js"></script>
<script src="https://gw.alipayobjects.com/os/antv/pkg/_antv.l7-1.3.0-beta.4/build/L7-min.js"></script>
<script>
  var scene = new L7.Scene({
    id: 'map',
    mapStyle: 'dark', // 样式URL
    center: [120.19382669582967, 30.258134],
    pitch: 0,
    zoom: 3
  });
  scene.on('loaded', function() {

$.get('https://gw.alipayobjects.com/os/basement_prod/67f47049-8787-45fc-acfe-e19924afe032.json', function(data) {
      scene.PointLayer({
          zIndex: 2
        }).source(data, {
          parser: {
            type: 'json',
            x: 'x',
            y: 'y'
          }
        }).shape('circle').size('v', [1, 25]).active(true).filter('g', function(g) {
          return g === "2";
        }).color('#fd8d3c') // 线性映射
        .style({
          stroke: 'rgb(255,255,255)',
          strokeWidth: 1,
          opacity: 1.
        }).render();
    });
  });
</script>
</body>
</html>

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