如何用ArcGIS API for JavaScript 抓取切片的百度地图和高德地图

本文链接：https://blog.youkuaiyun.com/weixin_41562754/article/details/79919924

这篇博客介绍了如何利用ArcGIS API for JavaScript来抓取百度地图和高德地图的切片。通过创建特定的js文件，实现了地图图层的切换，提供了代码示例和GitHub链接供参考。

首先需要建立抓取不同图层并切片的js文件，并通过 js文件返回url

有需要的话可以通过访问以下github链接进行获取

https://github.com/WaitouHo/Designing-And-Developing-for-GIS

首先给出baidu地图的js

define(["dojo/_base/declare", "esri/layers/TiledMapServiceLayer", "esri/geometry/Extent", "esri/SpatialReference", "esri/layers/TileInfo"],
    function (declare, TiledMapServiceLayer, Extent, SpatialReference, TileInfo) {
        return declare(TiledMapServiceLayer, {
            // 构造函数
            constructor: function (properties) {
                this.spatialReference = new SpatialReference({
                    wkid: 102113
                });

                // 图层提供的起始显示范围以及整个图层的地理范围
                this.fullExtent = new Extent(-20037508.342787, -20037508.342787, 20037508.342787, 20037508.342787, this.spatialReference);
                this.initialExtent = new Extent(5916776.8, 1877209.3, 19242502.6, 7620381.8, this.spatialReference);
                // 图层提供的切片信息
                this.tileInfo = new TileInfo({
                    "rows": 256,
                    "cols": 256,
                    "compressionQuality": 0,
                    "origin": {
                        "x": -20037508.342787,
                        "y": 20037508.342787
                    },
                    "spatialReference": {
                        "wkid": 102113
                    },
                    "lods": [