Arcgis的Javascript api开发很活跃，不知不觉都发布了3.6的版本了。该版本基于dojo 1.8.3开发的。
从dojo 1.8开始，AMD机制用得越来越多了，而且require([""],...)成为了推荐的写法，原来的dojo.require已不推荐使用了。
但是当我用 define(["esri/layers/TiledServiceLayer",....)这种语法来修改之前网上放出的写法时，发现不行，于是有了下面折中的写法。下面贴代码
第一个文件 TDLayer.js ,是用来加载天地图的底图的。
1 define(["dojo/_base/declare","esri/layers/tiled"], function(declare){ 2 return declare(esri.layers.TiledMapServiceLayer, { 3 constructor: function() { 4 this.spatialReference = new esri.SpatialReference({ wkid:4326 }); 5 this.initialExtent = (this.fullExtent = new esri.geometry.Extent(-180.0, -90.0, 180.0, 90.0, this.spatialReference)); 6 7 this.tileInfo = new esri.layers.TileInfo({ 8 "rows" : 256, 9 "cols" : 256, 10 "compressionQuality" : 0, 11 "origin" : { 12 "x" : -180, 13 "y" : 90 14 }, 15 "spatialReference" : { 16 "wkid" : 4326 17 }, 18 "lods" : [ 19 {"level" : 2, "resolution" : 0.3515625, "scale" : 147748796.52937502}, 20 {"level" : 3, "resolution" : 0.17578125, "scale" : 73874398.264687508}, 21 {"level" : 4, "resolution" : 0.087890625, "scale" : 36937199.132343754}, 22 {"level" : 5, "resolution" : 0.0439453125, "scale" : 18468599.566171877}, 23 {"level" : 6, "resolution" : 0.02197265625, "scale" : 9234299.7830859385}, 24 {"level" : 7, "resolution" : 0.010986328125, "scale" : 4617149.8915429693}, 25 {"level" : 8, "resolution" : 0.0054931640625, "scale" : 2308574.9457714846}, 26 {"level" : 9, "resolution" : 0.00274658203125, "scale" : 1154287.4728857423}, 27 {"level" : 10, "resolution" : 0.001373291015625, "scale" : 577143.73644287116}, 28 {"level" : 11, "resolution" : 0.0006866455078125, "scale" : 288571.86822143558}, 29 {"level" : 12, "resolution" : 0.00034332275390625, "scale" : 144285.93411071779}, 30 {"level" : 13, "resolution" : 0.000171661376953125, "scale" : 72142.967055358895}, 31 {"level" : 14, "resolution" : 8.58306884765625e-005, "scale" : 36071.483527679447}, 32 {"level" : 15, "resolution" : 4.291534423828125e-005, "scale" : 18035.741763839724}, 33 {"level" : 16, "resolution" : 2.1457672119140625e-005, "scale" : 9017.8708819198619}, 34 {"level" : 17, "resolution" : 1.0728836059570313e-005, "scale" : 4508.9354409599309}, 35 {"level" : 18, "resolution" : 5.3644180297851563e-006, "scale" : 2254.4677204799655} 36 ] 37 }); 38 39 this.loaded = true; 40 this.onLoad(this); 41 }, 42 43 getTileUrl: function(level, row, col) { 44 45 return "http://t" + col%8 + ".tianditu.cn/vec_c/wmts?SERVICE=WMTS&REQUEST=GetTile&VERSION=1.0.0&LAYER=vec&STYLE=default&TILEMATRIXSET=c&TILEMATRIX="+level+"&TILEROW="+row+"&TILECOL="+col+"&FORMAT=tiles"; 46 47 } 48 }); 49 });
第二个文件是 TDAnnoLayer.cs 只需要把第一个文件中的 getTileUrl方法修改下就可以了，比例尺什么的都是一样的，这个是注释图层
getTileUrl: function(level, row, col) { return "http://t" + row%8 + ".tianditu.cn/cva_c/wmts?SERVICE=WMTS&REQUEST=GetTile&VERSION=1.0.0&LAYER=cva&STYLE=default&TILEMATRIXSET=c&TILEMATRIX="+level+"&TILEROW="+row+"&TILECOL="+col+"&FORMAT=tiles"; }
上面的注释是中文的，也可以换用英文的注释，可以到天地图的网站上去查找。
将上面两个文件存放在 web根目录下的/js/tdlib 下面，然后我们写个示例来调用下看看
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> <title>TianDi Map</title> <script type="text/javascript"> dojoConfig = { parseOnLoad: true, packages: [{ name: 'tdlib', location: "/js/tdlib" }] }; </script> <link rel="stylesheet" href="http://js.arcgis.com/3.6/js/esri/css/esri.css"> <link rel="stylesheet" href="http://js.arcgis.com/3.6/js/dojo/dijit/themes/tundra/tundra.css"> <script src="http://js.arcgis.com/3.6/"></script> <script type="text/javascript"> var map; require(["esri/map", "tdlib/TDTLayer","tdlib/TDTAnnoLayer","esri/geometry/Point","dijit/form/Button","dojo/domReady!"], function(Map,TDTLayer,TDTAnnoLayer,Point,Button) { map=new Map("mapDiv",{ logo:false}); var basemap = new TDTLayer(); map.addLayer(basemap); var annolayer= new TDTAnnoLayer(); map.addLayer(annolayer); map.centerAndZoom(new Point({"x": 120.200018, "y": 30.209999, "spatialReference": {"wkid": 4326 } }),14); var button = new Button({ label: "北京", onClick: function(){ map.centerAt(new esri.geometry.Point(116.3,39.9, new esri.SpatialReference({ wkid: 4326 }))); }} , "ToBeijing"); }); </script> </head> <body class="tundra"> <button id="ToBeijing" type="button" ></button><br /> <div id="mapDiv" style="1000px; height:500px; border:1px solid #000;"></div> </body> </html>
好了，可以看到图了
