/*
* @Author: zulezhe
* @Date: 2021-07-08 08:36:43
* @LastEditors: zulezhe
* @LastEditTime: 2022-12-09 14:02:48
* @Path: https://gitee.com/zulezhe/
* @Description:
*/
import * as Cesium from "cesium";
/**
* 高德影像底图类
* @extends Cesium.UrlTemplateImageryProvider
*/
class AmapImageryProvider extends Cesium.UrlTemplateImageryProvider {
/**
* 添加高德地图底图
* @param {object} options
* @param {string} options.type=img 底图类型 影像底图 img 矢量底图 vec 默认 img
* @param {string} options.minimumLevel=4
* @param {string} options.maximumLevel=8
* @example
*
* var layer = new AmapImageryProvider({
* type: "img",
* minimumLevel: 4,
* maximumLevel: 18
* })
* viewer.imageryLayers.addImageryProvider(layer);
*/
constructor(
options = {
type: "img",
minimumLevel: 4,
maximumLevel: 18,
}
) {
super({
url: `https://${
options.type === "img" ? "webst0{s}" : "webrd02"
}.is.autonavi.com/appmaptile?lang=zh_cn&size=1&scale=1&style=${
options.type === "img" ? 6 : 8
}&x={x}&y={y}&z={z}`,
subdomains: ["1", "2", "3", "4"],
minimumLevel: 3,
maximumLevel: 18,
});
}
}
export default AmapImageryProvider;