Cesium JS API
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WebMapTileServiceImageryProvider

WebMapTileServiceImageryProvider是一个可用于CesiumJS的ImageryProvider,它允许从Web Map Tile Service(WMTS)服务提供图像数据。

用法

以下是初始化ImageryProvider的基本用法:

var provider = new Cesium.WebMapTileServiceImageryProvider({
    url: 'http://your-wmts-server-url',
    layer: 'your-layer-name',
    style: 'default',
    format: 'image/png',
    tileMatrixSetID: 'GoogleMapsCompatible',
    show: true
});

viewer.imageryLayers.addImageryProvider(provider);

属性

以下是可用于实例化WebMapTileServiceImageryProvider的所有属性和默认值:

属性 类型 默认值 描述
url String WMTS服务URL
layer String WMTS服务中的图层名称
style String "" 图层样式(可选)
format String "image/jpeg" 图片格式
tileMatrixSetID String TileMatrixSet标识符
tileWidth Number 256 每个瓦片的宽度
tileHeight Number 256 每个瓦片的高度
maximumLevel Number 最大层数
minimumLevel Number 0 最小层数
tilingScheme TilingScheme 瓷砖方案。默认情况下,提供者将使用WMTS描述的瓷砖方案
rectangle Rectangle Rectangle.MAX_VALUE 要加载的瓦片范围
version String "" WMTS版本号
credit Credit undefined 图片来源的授权信息
subdomains String undefined 用于替换url中的{subdomain}变量的可选字符串
show Boolean true 此提供程序是否应添加到地图中。默认为true

注意:tilingScheme以及rectangle有默认值。默认情况下,提供程序将使用WMTS描述的瓷砖方案和覆盖整个世界的瓦片范围。

方法

以下是可用的方法:

  • getTileCredits(x, y, level): 从给定的瓦片坐标和级别中获取信用信息,返回一个数组。

示例

在地图上添加中央天空区域的高通量成像(HDRI)服务,该服务提供从太空拍摄的高清图像。

具体代码如下:

var viewer = new Cesium.Viewer('cesiumContainer');

var provider = new Cesium.WebMapTileServiceImageryProvider({
    url: 'https://bostonglobe.cesium.com',
    layer: 'boston-globe-hdri',
    style: 'aerial',
    format: 'image/jpeg',
    tileMatrixSetID: 'GoogleMapsCompatible',
    maximumLevel: 19
});

viewer.imageryLayers.addImageryProvider(provider);

viewer.camera.setView({
    destination : Cesium.Cartesian3.fromDegrees(-71.060217, 42.357534, 100.0),
});

image-20211026172151762

参考