| 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647 | <!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>
  <script src="../dat.gui.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>
<script>
  let viewer = undefined
  function initViewer() {
    viewer = new DC.Viewer('viewer-container')
    let baseLayer = DC.ImageryLayerFactory.createImageryLayer(DC.ImageryType.AMAP,
      {
        style:'img',
        crs:'WGS84'
      }
    )
    viewer.addBaseLayer(baseLayer)
    viewer.compass.enable = true
    addGuiController() // add controller
  }
  function addGuiController(){
    let controls = {
      enable :true,
    }
    let gui = new dat.GUI();
    gui.add(controls,'enable',).onChange(value=>{
      viewer.compass.enable = value
    })
  }
  DC.ready({
    baseUrl:'../libs/dc-sdk/resources/'
  }).then(initViewer)
</script>
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