new VectorTileImageryProvider(options)
动态矢量切片提供程序，支持esri shapefile、geojson文件，也可以直接加载geojson对象和Polygon,PolyLine
Parameters:
| Name | Type | Description | ||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
options |
Object | 参数如下：
Properties
|
- Source:
Example
//1.面数据
viewer.imageryLayers.addImageryProvider(new VectorTileImageryProvider({
source: appConfig.BaseURL + "Assets/VectorData/中国数据/陕西/榆林/county_sshanxi_yulin.shp",
defaultStyle:{ outlineColor: Cesium.Color.WHITE,
fill: true
},
maximumLevel: 22,
minimumLevel: 0
}))
//2.点数据
viewer.imageryLayers.addImageryProvider(new VectorTileImageryProvider({
source: appConfig.BaseURL + "Assets/VectorData/中国数据/陕西/榆林/town_sshanxi_yulin.shp"
,defaultStyle:{
fontColor: Cesium.Color.WHITE
, fontSize: 20
, fontFamily: '微软雅黑'
, makerImage: appConfig.BaseURL + "Assets/Images/Stations/autonew.png"
, labelOffsetY: 5
, labelOffsetX: 10
}
, maximumLevel: 22
, minimumLevel: 9
}))
//3.线数据
viewer.imageryLayers.addImageryProvider(new VectorTileImageryProvider({
source: appConfig.BaseURL + "Assets/VectorData/中国数据/中国边界.shp"
}))
//4.geojson
viewer.imageryLayers.addImageryProvider(new VectorTileImageryProvider({
source: appConfig.BaseURL + "Assets/SampleData/simplestyles.geojson",//VectorData/中国数据/中国边界.shp",
defaultStyle:{
fill: true
},
minimumLevel: 0
}))
5.使用样式函数（styleFilter）设置样式
viewer.imageryLayers.addImageryProvider(new Cesium.VectorTileImageryProvider({
source: appConfig.BaseURL + "Assets/VectorData/世界数据/Countries.shp",
defaultStyle: {
outlineColor: Cesium.Color.YELLOW,
lineWidth: 2,
fillColor: Cesium.Color.fromBytes(2, 24, 47, 200),
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 ,
styleFilter: function (feature, style) {
if (feature.properties.hasOwnProperty("NAME") && feature.properties["NAME"].toLocaleLowerCase().indexOf("china") >= 0) {
style.outlineColor = Cesium.Color.RED;
style.fill = true;
style.fillColor = Cesium.Color.AZURE.withAlpha(0.5);
}
}
}))Extends
- Cesium.ImageryProvider
Members
(readonly) credit :Credit
Gets the credit to display when this imagery provider is active. Typically this is used to credit
the source of the imagery. This function should not be called before Cesium.VectorTileImageryProvider#ready returns true.
Type:
- Credit
- Source:
(readonly) errorEvent :Event
Gets an event that is raised when the imagery provider encounters an asynchronous error. By subscribing
to the event, you will be notified of the error and can potentially recover from it. Event listeners
are passed an instance of TileProviderError.
Type:
- Event
- Source:
(readonly) hasAlphaChannel :Boolean
Gets a value indicating whether or not the images provided by this imagery provider
include an alpha channel. If this property is false, an alpha channel, if present, will
be ignored. If this property is true, any images without an alpha channel will be treated
as if their alpha is 1.0 everywhere. When this property is false, memory usage
and texture upload time are reduced.
Type:
- Boolean
- Source:
(readonly) maximumLevel :Number
Gets the maximum level-of-detail that can be requested. This function should
not be called before Cesium.VectorTileImageryProvider#ready returns true.
Type:
- Number
- Source:
(readonly) minimumLevel :Number
Gets the minimum level-of-detail that can be requested. This function should
not be called before Cesium.VectorTileImageryProvider#ready returns true.
Type:
- Number
- Source:
(readonly) proxy :Proxy
Gets the proxy used by this provider.
Type:
- Proxy
- Source:
(readonly) ready :Boolean
Gets a value indicating whether or not the provider is ready for use.
Type:
- Boolean
- Source:
(readonly) readyPromise :Promise.<Boolean>
Gets a promise that resolves to true when the provider is ready for use.
Type:
- Promise.<Boolean>
- Source:
(readonly) rectangle :Rectangle
Gets the rectangle, in radians, of the imagery provided by this instance. This function should
not be called before Cesium.VectorTileImageryProvider#ready returns true.
Type:
- Rectangle
- Source:
(readonly) tileDiscardPolicy :TileDiscardPolicy
Gets the tile discard policy. If not undefined, the discard policy is responsible
for filtering out "missing" tiles via its shouldDiscardImage function. If this function
returns undefined, no tiles are filtered. This function should
not be called before Cesium.VectorTileImageryProvider#ready returns true.
Type:
- TileDiscardPolicy
- Source:
(readonly) tileHeight :Number
Gets the height of each tile, in pixels. This function should
not be called before Cesium.VectorTileImageryProvider#ready returns true.
Type:
- Number
- Source:
(readonly) tileWidth :Number
Gets the width of each tile, in pixels. This function should
not be called before Cesium.VectorTileImageryProvider#ready returns true.
Type:
- Number
- Source:
(readonly) tilingScheme :TilingScheme
Gets the tiling scheme used by this provider. This function should
not be called before Cesium.VectorTileImageryProvider#ready returns true.
Type:
- TilingScheme
- Source:
Type Definitions
StyleFilterCallback(feature, style)
样式设置函数
Parameters:
| Name | Type | Description |
|---|---|---|
feature |
Geojson.Feature | 当前要素（用Geojson.Feature存储） |
style |
MeteoLib.Render.VectorStyle | 即将应用与当前要素的样式，可以通过修改该参数中的各样式设置选项来针对当前要素进行特殊的样式设置。 修改后只对当前要素有效，不会修改Cesium.VectorTileImageryProvider的默认样式 |
- Source:
Example
undefined