OpenSource
/
dc-sdk
miroir de https://github.com/dvt3d/dc-sdk


			
				
					
						
						
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							<!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="addPoint(100)">一百</button></li>
    <li><button onclick="addPoint(1000)">一千</button></li>
    <li><button onclick="addPoint(10000)">一万</button></li>
    <li><button onclick="addPoint(50000)">五万</button></li>
    <li><button onclick="addPoint(100000)">十万</button></li>
    <li><button onclick="removeAll()">清除</button></li>
  </ul>
</div>
<script>
  let viewer = undefined
  let layer = undefined

  function addPoint(num){
    removeAll()
    let start = new Date().getTime()
    let positions = generatePosition(num)
    console.log('create point time: ' + (new Date().getTime() - start) / 1000 )
    start = new Date().getTime()
    positions.forEach(item => {
      let billboard = new DC.Billboard(item, '../assets/icon/camera.png')
      billboard.on(DC.MouseEventType.CLICK,e=> console.log(e))
      layer.addOverlay(billboard)
    })
    console.log('add point time: ' + (new Date().getTime() - start) / 1000 )
  }

  function removeAll(){
    layer.clear()
  }

  function generatePosition(num) {
    let list = []
    for (let i = 0; i < num; i++) {
      let lng = 120.38105869 + Math.random() * 0.5
      let lat = 31.10115627 + Math.random() * 0.5
      list.push(new DC.Position(lng, lat))
    }
    return list
  }
  function initViewer() {
    viewer = new DC.Viewer('viewer-container')
    let baseLayer = DC.ImageryLayerFactory.createImageryLayer(DC.ImageryType.AMAP,{
      style:'img',
      crs:'WGS84'
    })
    viewer.addBaseLayer( baseLayer)
    layer = new DC.VectorLayer('layer')
    viewer.addLayer(layer)
    let positions = generatePosition(100)
    positions.forEach(item => {
      let billboard = new DC.Billboard(item, '../assets/icon/camera.png')
      layer.addOverlay(billboard)
    })
    viewer.flyToPosition("120.8226729498609,31.268693185250438,114716.63624611919,0,-90")
  }
  DC.ready({
    baseUrl:'../libs/dc-sdk/resources/'
  }).then(initViewer)
</script>