加载天地图 arcgis for JavaScript 3x

• 代码 TianDiTuLayer.

define(["dojo/_base/declare", "esri/layers/tiled"],
        function (declare) {
        return declare(esri.layers.TiledMapServiceLayer, {
            _maptype:"",
            constructor: function (maptype) {
                //接收一个maptype参数
                this._maptype = maptype;
                this.spatialReference = new esri.SpatialReference({ wkid: 4326 });
                this.initialExtent = (this.fullExtent = new esri.geometry.Extent(-180.0, -90.0, 180.0, 90.0, this.spatialReference));
                this.tileInfo = new esri.layers.TileInfo({
                    "rows": 256,
                    "cols": 256,
                    "compressionQuality": 0,
                    "origin": {
                        "x": -180,
                        "y": 90
                    },
                    "spatialReference": {
                        "wkid": 4326
                    },
                    "lods": [
                        { "level": 2, "resolution": 0.3515625, "scale": 147748796.52937502 },
                        { "level": 3, "resolution": 0.17578125, "scale": 73874398.264687508 },
                        { "level": 4, "resolution": 0.087890625, "scale": 36937199.132343754 },
                        { "level": 5, "resolution": 0.0439453125, "scale": 18468599.566171877 },
                        { "level": 6, "resolution": 0.02197265625, "scale": 9234299.7830859385 },
                        { "level": 7, "resolution": 0.010986328125, "scale": 4617149.8915429693 },
                        { "level": 8, "resolution": 0.0054931640625, "scale": 2308574.9457714846 },
                        { "level": 9, "resolution": 0.00274658203125, "scale": 1154287.4728857423 },
                        { "level": 10, "resolution": 0.001373291015625, "scale": 577143.73644287116 },
                        { "level": 11, "resolution": 0.0006866455078125, "scale": 288571.86822143558 },
                        { "level": 12, "resolution": 0.00034332275390625, "scale": 144285.93411071779 },
                        { "level": 13, "resolution": 0.000171661376953125, "scale": 72142.967055358895 },
                        { "level": 14, "resolution": 8.58306884765625e-005, "scale": 36071.483527679447 },
                        { "level": 15, "resolution": 4.291534423828125e-005, "scale": 18035.741763839724 },
                        { "level": 16, "resolution": 2.1457672119140625e-005, "scale": 9017.8708819198619 },
                        { "level": 17, "resolution": 1.0728836059570313e-005, "scale": 4508.9354409599309 },
                        { "level": 18, "resolution": 5.3644180297851563e-006, "scale": 2254.4677204799655 }
                    ]
                });
                this.loaded = true;
                this.onLoad(this);
            },
            getTileUrl: function (level, row, col) {
                return "http://t" + col % 8 + ".tianditu.gov.cn/"+this._maptype+"_c/wmts?"+
                    "SERVICE=WMTS&REQUEST=GetTile&VERSION=1.0.0&LAYER="+this._maptype+
                    "&STYLE=default&TILEMATRIXSET=c&TILEMATRIX=" +
                    level + "&TILEROW=" + row + "&TILECOL=" + col + "&FORMAT=tiles&&tk=[你的秘钥]";
            }
        });
    });

• 使用

layer = new TianDiTuLayer(layerConfig.code);

• 效果

  
  dddd.png