arcgis javascript api4.x加载天地图cgs2000坐标系

发布时间：2023年12月18日

需求：arcgis javascript api4.x加载天地图cgs2000坐标系

效果：

示例代码：

<!DOCTYPE html>
<html lang="en">
 
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>加载天地图</title>
    <link
    rel="stylesheet"
    href="https://js.arcgis.com/4.27/esri/themes/light/main.css"
  />
  <script src="https://js.arcgis.com/4.27/"></script>
 
    <style>
        html,
        body,
        #map {
            width: 100%;
            height: 100%;
            padding: 0;
            margin: 0;
        }
    </style>
    <script>
        require(["esri/Map",
            "esri/views/MapView",
            "esri/layers/WebTileLayer",
            "esri/layers/support/TileInfo" 
     
        ], function (Map, MapView, WebTileLayer, TileInfo) {
            
            let tileInfo = new TileInfo({
            dpi: 90.71428571427429,
            rows: 256,
            cols: 256,
            compressionQuality: 0,
            origin: {
                x: -180,
                y: 90
            },
            spatialReference: {
                wkid: 4490
            },
            lods: [
                { level: 0, levelValue: 1, resolution: 0.703125, scale: 295497593.05875003 },
                { level: 1, levelValue: 2, resolution: 0.3515625, scale: 147748796.52937502 },
                { level: 2, levelValue: 3, resolution: 0.17578125, scale: 73874398.264687508 },
                { level: 3, levelValue: 4, resolution: 0.087890625, scale: 36937199.132343754 },
                { level: 4, levelValue: 5, resolution: 0.0439453125, scale: 18468599.566171877 },
                { level: 5, levelValue: 6, resolution: 0.02197265625, scale: 9234299.7830859385 },
                { level: 6, levelValue: 7, resolution: 0.010986328125, scale: 4617149.8915429693 },
                { level: 7, levelValue: 8, resolution: 0.0054931640625, scale: 2308574.9457714846 },
                { level: 8, levelValue: 9, resolution: 0.00274658203125, scale: 1154287.4728857423 },
                { level: 9, levelValue: 10, resolution: 0.001373291015625, scale: 577143.73644287116 },
                { level: 10, levelValue: 11, resolution: 0.0006866455078125, scale: 288571.86822143558 },
                { level: 11, levelValue: 12, resolution: 0.00034332275390625, scale: 144285.93411071779 },
                { level: 12, levelValue: 13, resolution: 0.000171661376953125, scale: 72142.967055358895 },
                { level: 13, levelValue: 14, resolution: 8.58306884765625e-005, scale: 36071.483527679447 },
                { level: 14, levelValue: 15, resolution: 4.291534423828125e-005, scale: 18035.741763839724 },
                { level: 15, levelValue: 16, resolution: 2.1457672119140625e-005, scale: 9017.8708819198619 },
                { level: 16, levelValue: 17, resolution: 1.0728836059570313e-005, scale: 4508.9354409599309 },
                { level: 17, levelValue: 18, resolution: 5.3644180297851563e-006, scale: 2254.4677204799655 },
                { level: 18, levelValue: 19, resolution: 2.68220901489257815e-006, scale: 1127.23386023998275 },
                { level: 19, levelValue: 20, resolution: 1.341104507446289075e-006, scale: 563.616930119991375 }
            ]
        });
 
 
 
         /*天地图-影像（CGCS2000）*/
 
         var img_tiandituLayer = new WebTileLayer("http://{subDomain}.tianditu.gov.cn/img_c/wmts?SERVICE=WMTS&VERSION=1.0.0&REQUEST=GetTile&LAYER=img&STYLE=default&FORMAT=tiles&TILEMATRIXSET=c&TILEMATRIX={level}&TILEROW={row}&TILECOL={col}&tk=ac0daf56728bbb77d9514ba3df69bcd3", {
            subDomains: ["t0","t1","t2","t3","t4","t5","t6","t7"],
            title: "天地图-影像",
            tileInfo: tileInfo,
            spatialReference: {
                wkid: 4490
            },
            fullExtent:{
                xmin: -180,
                xmax: 180,
                ymin: -90,
                ymax: 90,
                spatialReference: 4490
            }
        });
 
        var cia_tiandituLayer = new WebTileLayer("http://{subDomain}.tianditu.gov.cn/cia_c/wmts?SERVICE=WMTS&VERSION=1.0.0&REQUEST=GetTile&LAYER=cia&STYLE=default&FORMAT=tiles&TILEMATRIXSET=c&TILEMATRIX={level}&TILEROW={row}&TILECOL={col}&tk=ac0daf56728bbb77d9514ba3df69bcd3", {
            subDomains: ["t0","t1","t2","t3","t4","t5","t6","t7"],
            title: "天地图-影像注记",
            tileInfo: tileInfo,
            spatialReference: {
                wkid: 4490
            },
            fullExtent:{
                xmin: -180,
                xmax: 180,
                ymin: -90,
                ymax: 90,
                spatialReference: 4490
            }
        });
  
 
            var map = new Map({
              
                basemap: {
                    baseLayers: [
                img_tiandituLayer
            ],
            referenceLayers: [
                cia_tiandituLayer
            ],
                },
                
            });
   
            var view = new MapView({
                container: "map",
                map: map,                         
 
            });       
            
        })
    </script>
</head>
 
<body>
    <div id="map"></div>
</body>
 
</html>
 
</html>

文章来源:https://blog.csdn.net/gislaozhang/article/details/132474818
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