OpenSource
/
dc-sdk
mirror of 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.base.min.js'></script>
  <script src='/libs/dc-sdk/dc.core.min.js'></script>
  <script>DC.baseUrl='../libs/dc-sdk/resources/'</script>
  <link href='/libs/dc-sdk/dc.core.min.css' type='text/css' rel='stylesheet'>
  <link href='../index.css' type='text/css' rel='stylesheet'>
  <style>
    *{
      margin: 0;
      padding: 0;
    }
    html,body,#viewer-container{
      width: 100%;
      height: 100%;
      overflow: hidden;
    }
  </style>
</head>

<body>

<div id="viewer-container"></div>
<script>
  let viewer = undefined

  function initViewer() {
    viewer = new DC.Viewer('viewer-container')
    let baselayer = DC.ImageryLayerFactory.createAmapImageryLayer({
      style:"img",
      crs:"WGS84"
    })
    viewer.addBaseLayer(baselayer)
    viewer.setOptions({
      globe:{
        depthTestAgainstTerrain:true
      }
    })
    let layer = new DC.TilesetLayer("layer").addTo(viewer)
    let tileset = new DC.Tileset('//resource.dvgis.cn/data/3dtiles/dayanta/tileset.json')
    tileset.setHeight(-420)
    layer.addOverlay(tileset)
    viewer.flyTo(tileset)
    viewer.use(new DC.Analysis())
    viewer.analysis.viewshed("108.95772292882747,34.22122559229137,20,130",400, 60,1.3)
    addGuiController()
  }

  function addGuiController(){
    let position =  DC.Position.fromString("108.95772292882747,34.22122559229137,20,130")
    let controls = {
      depthTest: true,
      fov: 60,
      aspectRatio:1.3,
      far:400,
      heading:130,
      showHelp:false
    }
    let gui = new dat.GUI()
    gui.add(controls,'depthTest').onChange(value=>{
      viewer.setOptions({
        globe:{
          depthTestAgainstTerrain:value
        }
      })
    })
    gui.add(controls,'fov',0,100).step(10).onChange(value=>{
      viewer.analysis.viewshed(position,controls.far, value , controls.aspectRatio,{
        showHelp:controls.showHelp
      })
    })

    gui.add(controls,'aspectRatio',1,5).step(0.1).onChange(value=>{
      viewer.analysis.viewshed(position,controls.far, controls.fov , value,{
        showHelp:controls.showHelp
      })
    })

    gui.add(controls,'far',100,1000).step(100).onChange(value=>{
      viewer.analysis.viewshed(position,value,controls.fov ,  controls.aspectRatio,{
        showHelp:controls.showHelp
      })
    })

    gui.add(controls,'heading',0,360).step(5).onChange(value=>{
      position.heading = value
      viewer.analysis.viewshed(position,controls.far,controls.fov ,  controls.aspectRatio,{
        showHelp:controls.showHelp
      })
    })

    gui.add(controls,'showHelp').onChange(value=>{
      viewer.analysis.viewshed(position,controls.far,controls.fov ,controls.aspectRatio,{
        showHelp:value
      })
    })
  }

  DC.ready(initViewer)
</script>
</body>
</html>