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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>
 -     <script>
 -       DC.config.baseUrl = '../libs/dc-sdk/resources/'
 -       let viewer = new DC.Viewer('viewer-container')
 -       let baseLayer = DC.ImageryLayerFactory.createImageryLayer(
 -         DC.ImageryType.AMAP,
 -         {
 -           style: 'img',
 -           crs: 'WGS84',
 -         }
 -       )
 -       viewer.addBaseLayer(baseLayer, {
 -         brightness: 0.1,
 -       })
 -       let layer = new DC.VectorLayer('layer')
 -       viewer.addLayer(layer)
 - 
 -       let polyline = new DC.Polyline('-75, 35; -80, 35').setStyle({
 -         width: 5,
 -         material: new DC.PolylineFlowMaterialProperty({
 -           color: DC.Color.RED,
 -           speed: 5,
 -         }),
 -         clampToGround: true,
 -       })
 - 
 -       let polyline1 = new DC.Polyline(' -75, 30;-75, 35').setStyle({
 -         width: 5,
 -         material: new DC.PolylineFlowMaterialProperty({
 -           color: DC.Color.ORANGE,
 -           speed: 5,
 -         }),
 -         clampToGround: true,
 -       })
 - 
 -       let polyline2 = new DC.Polyline('-80, 35; -80, 30').setStyle({
 -         width: 5,
 -         material: new DC.PolylineFlowMaterialProperty({
 -           color: DC.Color.YELLOW,
 -           speed: 10,
 -         }),
 -         clampToGround: true,
 -       })
 - 
 -       let polyline3 = new DC.Polyline('-80, 30; -75, 30').setStyle({
 -         width: 5,
 -         material: new DC.PolylineFlowMaterialProperty({
 -           color: DC.Color.GREEN,
 -           speed: 10,
 -         }),
 -         clampToGround: true,
 -       })
 - 
 -       layer
 -         .addOverlay(polyline)
 -         .addOverlay(polyline1)
 -         .addOverlay(polyline2)
 -         .addOverlay(polyline3)
 -       viewer.flyTo(layer)
 -     </script>
 -   </body>
 - </html>
 
 
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