examples/animation/track_clamp_to_tileset.html

<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width,initial-scale=1.0">
  <title>dc-example</title>
  <script src='/libs/dc-sdk/dc.min.js'></script>
  <link href='/libs/dc-sdk/dc.min.css' type='text/css' rel='stylesheet'>
  <link href='../index.css' type='text/css' rel='stylesheet'>
</head>

<body>

<div id="viewer-container" class="viewer-container"></div>
<div class="btn-box">
  <ul>
    <li><button onclick="play()">播放</button></li>
    <li><button onclick="pause()">暂停</button></li>
    <li><button onclick="restore()">恢复</button></li>
  </ul>
</div>
<script>
  let viewer = undefined
  let tc = undefined
  let track = undefined

  function play(){
    tc.play()
  }

  function pause(){
    tc.pause()
  }

  function restore(){
    tc.restore()
  }

  function initViewer() {
    viewer = new DC.Viewer('viewer-container')
    let baseLayer = DC.ImageryLayerFactory.createImageryLayer(DC.ImageryType.AMAP,{
      style:'img',
      crs:'WGS84'
    })
    viewer.addBaseLayer( baseLayer)
    let layer = new DC.TilesetLayer('layer')
    viewer.addLayer(layer)
    let tileset = new DC.Tileset(
      '//resource.dvgis.cn/data/3dtiles/dayanta/tileset.json'
    )
    tileset.setHeight(-430)
    layer.addOverlay(tileset)
    tc = new DC.TrackController(viewer)
    let positions = "108.95672281090324,34.21936342653068;108.96190926401181,34.21960987901689"
    track = new DC.Track(positions,20,()=>{},{
      clampToTileset:true
    })
    track.setModel('../assets/data/qiche.gltf',{
      scale:0.1
    })
    tc.addTrack(track)
    viewer.flyTo(tileset)
  }

  DC.ready({
    baseUrl:'../libs/dc-sdk/resources/'
  }).then(initViewer)
</script>
</body>
</html>