maptalks - 为图层设置样式

为图层设置样式
index.html
<!DOCTYPE html>
<html>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>gltf模型图层 - 为图层设置样式</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/maptalks/dist/maptalks.css">
  <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/maptalks/dist/maptalks.min.js"></script>
  <script type="text/javascript" src="/gltf-examples/lib/maptalksgl.js"></script>
  <script type="text/javascript" src="/gltf-examples/lib/maptalks.gltf.js"></script>
  <body>
    
    <div id="map" class="container"></div>

    <script>
      var map = new maptalks.Map('map', {
        center: [-0.113049,51.498568],
        zoom: 14,
        pitch: 75,
        baseLayer: new maptalks.TileLayer('base', {
          urlTemplate: 'https://{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 url1 = '../../../../resource/gltf/cube-animation/cube.gltf';
      var url2 = '../../../../resource/gltf/Duck/Duck.glb';
      
      var gltflayer = new maptalks.GLTFLayer('gltf').addTo(map);
      var position = map.getCenter();
      var markers = [];
      for (let i = 0; i < 3; i++) {
        for (let j = 0; j < 3; j++) {
          var gltfmarker = new maptalks.GLTFMarker(position.add(i * 0.01 - 0.015, j * 0.01 - 0.015), {
            properties: {
              'num': (i + j) * 0.1
            }
          });
          markers.push(gltfmarker);
        }
      }
      
      gltflayer.addMarker(markers);
      
      const style = [{
        "filter": ["<", "num", 0.2],
        "symbol": {
            "url": url1,
            "animation": true,
            "loop": true,
            "scale": [2, 2, 2],
            "rotation": [90, 0, 0],
            "shader": "phong",
            "uniforms": {
                'baseColorFactor': [0.8, 0.2, 0.0, 1.0]
            }
          },
          "uniqueName": "棱锥体"
        },
        {
          "filter": [">=", "num", 0.2],
          "symbol": {
              "url": url2,
              "shader": "phong",
              "rotation": [90, 0, 0],
              "uniforms": {
                  'baseColorFactor': [0.2, 0.8, 0.0, 1.0]
              }
          },
          "uniqueName": "鸭子"
        }
      ];
      setTimeout(function() {
        gltflayer.setStyle(style);
      }, 3*1000);

    </script>
  </body>
</html>
gltflayer.addMarker(markers);