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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')
- viewer.setOptions({
- globe: {
- baseColor: DC.Color.BLACK,
- },
- })
- let layer_build = new DC.TilesetLayer('layer_build').addTo(viewer)
- let build = new DC.Tileset(
- '//resource.dvgis.cn/data/3dtiles/ljz/tileset.json',
- { skipLevels: true }
- )
- let customShader = new DC.CustomShader({
- fragmentShaderText: `
- void fragmentMain(FragmentInput fsInput, inout czm_modelMaterial material) {
- vec4 position = czm_inverseModelView * vec4(fsInput.attributes.positionEC,1); // 位置
- float glowRange = 100.0; // 光环的移动范围(高度)
- vec4 temp = vec4(0.2, 0.5, 1.0, 1.0); // 颜色
- temp *= vec4(vec3(position.z / 100.0), 1.0); // 渐变
- // 动态光环
- float time = fract(czm_frameNumber / 360.0);
- time = abs(time - 0.5) * 2.0;
- float diff = step(0.005, abs( clamp(position.z / glowRange, 0.0, 1.0) - time));
- material.diffuse = vec3(temp.rgb + temp.rgb * (1.0 - diff)) ;
- }
- `,
- })
- build.setCustomShader(customShader)
- layer_build.addOverlay(build)
- let layer = new DC.VectorLayer('layer').addTo(viewer)
- let center = DC.Position.fromObject({
- lng: 121.49536592256028,
- lat: 31.241616722278213,
- })
- let circle = new DC.Circle(center, 3000)
- circle.setStyle({
- classificationType: 0,
- material: new DC.CircleBlurMaterialProperty({
- color: DC.Color.YELLOW.withAlpha(0.2),
- speed: 5.0,
- }),
- })
- layer.addOverlay(circle)
- viewer.flyToPosition('121.4941629,31.2091462,1859.56,0,-28.71')
- </script>
- </body>
- </html>
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