通过创建GeoLine给地图添加烟花图效果

var app = new THING.App();
// 设置app背景为黑色
app.background = [0, 0, 0];
 
var thingLayer = app.create({
 type: "ThingLayer",
 name: "thingLayer01"
});
 
// 引用地图组件脚本
THING.Utils.dynamicLoad(["https://www.thingjs.com/uearth/uearth.min.js"], function () {
 app.create({
 type: "Map",
 url: 'https://www.thingjs.com/citybuilder_console/mapProject/config/TVRFek5ETTRDaXR5QnVpbGRlckAyMDE5',
 complete: function (event) {
 var building = app.query(/建筑/)[0].data.features;
 var points1 = app.query(/旅游/)[0].data.features;
 var points2 = app.query(/医疗服务/)[0].data.features;
 var points3 = app.query(/大型购物广场/)[0].data.features;
 var newPoints2 = points2.filter((i, index) => index % 10 == 0);
 
 createBuilding(building, 'building')
 createMeshLine(points1, "#FF9933FF");
 createMeshLine(newPoints2, "#FF00FFFF");
 createMeshLine(points3, "#00CCFFFF");
 }
 });
});
 
/**
 * 创建GeoBuilding
 */
function createBuilding(building, name) {
 building.map(item => {
 var coordinates = item.geometry.coordinates;
 var height = item.properties.height;
 var building = app.create({
 type: "GeoBuilding",
 name: name,
 coordinates, // 支持Polygon和MultiPolygon,格式可参考geoJson规范
 height: height,
 renderer: {
 type: 'vector',
 color: [61, 63, 70],// 面填充颜色
 opacity: 1, // 填充不透明度
 }
 });
 thingLayer.add(building);
 })
}
 
/**
 * 创建GeoLine
 */
function createMeshLine(points, color) {
 points.map(item => {
 var height = Math.random() * 2000 + 3000;
 var geoLine = app.create({
 type: 'GeoLine',
 name: color,
 coordinates: [item.geometry.coordinates, item.geometry.coordinates],
 heightArray: [0, height * 0.1],
 // userData: { 'name': '花家地南街' },
 renderer: {
 type: 'vector', //GeoLine渲染类型 支持纯色(vector)和贴图(image)两种模式
 lineType: 'Line', //可以是Line Plane Pipe Route
 // imageUrl: 'https://www.thingjs.com/citybuilder_console/upload/lineIcons/3d/lightFlow_strip05.png',//线的贴图url, type是image时生效
 // color: [255, 255, 255], //线的颜色, type是vector时生效
 colorMapping: {
 0: "#00000000",
 0.7: "#33333300",
 0.8: "#333333FF",
 1: color,
 },
 // effect: true, //是否开启发光特效
 // width: 10, //只在线类型为Plane,Pipe下生效,代表线的宽度
 // numPass: 0.5, // 通道数,在贴图时贴图叠加的次数,次数越多颜色越亮,type是image时生效
 speed: 0.4, //线贴图流动速度,默认是0,不流动 speed可以大于0也可以小于0，代表流动方向
 // growSpeed: 0.4, //线生长速度,默认是0,不生长，lineType是Line,Plane时生效
 // growLoop: true //线生长是否循环，默认是true，lineType是Line,Plane时生效
 }
 });
 thingLayer.add(geoLine);
 })
}