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:
VectorTileImageryProvider = Cesium.VectorTileImageryProvider;
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);
});
- 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。