mirror of
https://github.com/jiawanlong/Cesium-Examples.git
synced 2025-07-04 15:17:36 +00:00
142 lines
5.2 KiB
HTML
142 lines
5.2 KiB
HTML
<!--********************************************************************
|
|
* by jiawanlong
|
|
*********************************************************************-->
|
|
<!DOCTYPE html>
|
|
<html>
|
|
|
|
<head>
|
|
<meta charset="UTF-8" />
|
|
<link rel="stylesheet" href="./../../libs/cesium/Cesium1.98/Widgets/widgets.css" />
|
|
<script type="text/javascript" src="./../../libs/cesium/Cesium1.98/Cesium.js"></script>
|
|
</head>
|
|
|
|
<body style="
|
|
margin: 0;
|
|
overflow: hidden;
|
|
background: #fff;
|
|
width: 100%;
|
|
height: 100%;
|
|
position: absolute;
|
|
top: 0;
|
|
">
|
|
<div id="map" style="margin: 0 auto; width: 100%; height: 100%"></div>
|
|
|
|
<script type="text/javascript">
|
|
Cesium.Ion.defaultAccessToken =
|
|
"eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJqdGkiOiIyMjBhMzcxMC0wNjBiLTRmYjItYjY1MC0wMzAwMzMyMGUyMmEiLCJpZCI6MzAzNzc3LCJpYXQiOjE3NDc2Mzk0NTV9.E_90aKtVdzRGlU2z48VwJ4mWvl-uuDkfQBCOO6zbzn4";
|
|
const viewer = new Cesium.Viewer("map", {});
|
|
viewer.scene.debugShowFramesPerSecond = true;
|
|
viewer.scene.globe.depthTestAgainstTerrain = true;
|
|
|
|
function PolylineTrailLinkMaterialProperty(color, duration, d,imgurl) {
|
|
this._definitionChanged = new Cesium.Event();
|
|
this._color = undefined;
|
|
this._color = undefined;
|
|
this.imgurl = imgurl;
|
|
this._colorSubscription = undefined;
|
|
this.color = color;
|
|
this.duration = duration || 3000;
|
|
this._time = (new Date()).getTime();
|
|
this._d = d;
|
|
this.isTranslucent = function () {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
Object.defineProperties(PolylineTrailLinkMaterialProperty.prototype, {
|
|
isConstant: {
|
|
get: function () {
|
|
return false;
|
|
}
|
|
},
|
|
definitionChanged: {
|
|
get: function () {
|
|
return this._definitionChanged;
|
|
}
|
|
},
|
|
color: Cesium.createPropertyDescriptor('color')
|
|
});
|
|
|
|
PolylineTrailLinkMaterialProperty.prototype.getType = function (time) {
|
|
return 'PolylineTrailLink';
|
|
}
|
|
|
|
PolylineTrailLinkMaterialProperty.prototype.getValue = function (time, result) {
|
|
if (!Cesium.defined(result)) {
|
|
result = {};
|
|
}
|
|
result.color = Cesium.Property.getValueOrClonedDefault(this._color, time, Cesium.Color.WHITE, result.color);
|
|
// result.image = Cesium.Material.PolylineTrailLinkImage;
|
|
result.image = this.imgurl;
|
|
result.time = (((new Date()).getTime() - this._time) % this.duration) / this.duration * this._d;
|
|
return result;
|
|
}
|
|
|
|
PolylineTrailLinkMaterialProperty.prototype.equals = function (other) {
|
|
return this === other ||
|
|
(other instanceof PolylineTrailLinkMaterialProperty &&
|
|
Property.equals(this._color, other._color))
|
|
}
|
|
|
|
Cesium.PolylineTrailLinkMaterialProperty = PolylineTrailLinkMaterialProperty;
|
|
Cesium.Material.PolylineTrailLinkType = 'PolylineTrailLink';
|
|
Cesium.Material.PolylineTrailLinkImage = "";
|
|
|
|
Cesium.Material.PolylineTrailLinkSource = `
|
|
czm_material czm_getMaterial(czm_materialInput materialInput)
|
|
{
|
|
czm_material material = czm_getDefaultMaterial(materialInput);
|
|
vec2 st = materialInput.st;
|
|
vec4 colorImage = texture(image, vec2(fract(st.s - time), st.t));
|
|
material.alpha = colorImage.a * color.a;
|
|
material.diffuse = (colorImage.rgb+color.rgb)/2.0;
|
|
return material;
|
|
}
|
|
`;
|
|
|
|
Cesium.Material._materialCache.addMaterial(Cesium.Material.PolylineTrailLinkType, {
|
|
fabric: {
|
|
type: Cesium.Material.PolylineTrailLinkType,
|
|
uniforms: {
|
|
color: new Cesium.Color(0.0, 0.0, 1.0, 0.5),
|
|
image: Cesium.Material.PolylineTrailLinkImage,
|
|
time: -20
|
|
},
|
|
source: Cesium.Material.PolylineTrailLinkSource
|
|
},
|
|
translucent: function (material) {
|
|
return true;
|
|
}
|
|
});
|
|
|
|
viewer.entities.add({
|
|
name: 'PolylineTrail',
|
|
polygon: {
|
|
hierarchy: Cesium.Cartesian3.fromDegreesArrayHeights([
|
|
-100, 30, 250000,
|
|
-80, 30, 250000,
|
|
-80, 31, 250000,
|
|
-100, 31, 250000,
|
|
]),
|
|
material: new Cesium.PolylineTrailLinkMaterialProperty(Cesium.Color.WHITE, 3000, 1,"./line.png")
|
|
}
|
|
});
|
|
|
|
viewer.entities.add({
|
|
name: 'PolylineTrail',
|
|
polygon: {
|
|
hierarchy: Cesium.Cartesian3.fromDegreesArrayHeights([
|
|
-100, 40, 250000,
|
|
-80, 40, 250000,
|
|
-80, 40.1, 250000,
|
|
-100, 40.1, 250000,
|
|
]),
|
|
material: new Cesium.PolylineTrailLinkMaterialProperty(Cesium.Color.WHITE, 1000, 1,"./line1.png")
|
|
}
|
|
});
|
|
|
|
|
|
</script>
|
|
</body>
|
|
|
|
</html> |