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。
define(["dojo/_base/declare","esri/layers/tiled"], function(declare){
return declare(esri.layers.TiledMapServiceLayer, {
constructor: function() {
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.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";
}
});
});
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="width:1000px; height:500px; border:1px solid #000;"></div>
</body>
</html>
好了，可以看到图了
