Cesium VectorTileImageryProvider 支持小数据量的geojson、shape文件矢量动态切片，实现贴地 
npm 安装
npm install cesiumvectortile 示例：
var VectorTileImageryProvider = Cesium.VectorTileImageryProvider; var viewer = new Cesium.Viewer("cesiumContainer"); var imageryProviderViewModels = viewer.baseLayerPicker.viewModel.imageryProviderViewModels; viewer.baseLayerPicker.viewModel.selectedImagery = imageryProviderViewModels[imageryProviderViewModels.length - 1]; viewer.scene.debugShowFramesPerSecond = true; var provinceLayer = null; var provinceProvider = new VectorTileImageryProvider({ source: appConfig.BaseURL + "Assets/Data/json/china_province.geojson", defaultStyle: { outlineColor: "rgb(255,255,255)", lineWidth: 2, fill: false, tileCacheSize: 200 }, maximumLevel: 20, minimumLevel: 1, simplify: false }); provinceProvider.readyPromise.then(function () { provinceLayer = viewer.imageryLayers.addImageryProvider(provinceProvider); }); var worldLayer = null; var worldProvider = new VectorTileImageryProvider({ source: appConfig.BaseURL + "Assets/Data/shp/world/国家简化边界.shp", defaultStyle: { outlineColor: "rgb(255,0,0)", lineWidth: 1, fill: false, tileCacheSize: 200, showMaker: false, showCenterLabel: true, fontColor: "rgba(255,0,0,1)", labelOffsetX: -10, labelOffsetY: -5, fontSize: 13, fontFamily: "黑体", centerLabelPropertyName: "NAME" }, maximumLevel: 20, minimumLevel: 1, simplify: false }); worldProvider.readyPromise.then(function () { worldLayer = viewer.imageryLayers.addImageryProvider(worldProvider); });- 使用原生Promise替代when.js，适配Cesium-1.92及以上版本
- 1、增加TypeScript定义CesiumVectorTile.d.ts；
- 1、支持leaflet（仅支持EPSG4326）；
- 2、解决与第三方库（如Vue）结合的一些问题。
- 1、支持要素查询：增加构造函数可选参数allowPick，事件featuresPicked
- 1、支持虚线和阴影
- 1、支持最新版Cesium；
- 2、支持以注记的方式显示关键属性，如地名等。