代碼
參照浙江天地圖的調用說明http://www.zjditu.cn/resource/apihelp，編寫代碼調用地wmts天圖服務。
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no">
<title>TDT_ZJ</title>
<link rel="stylesheet" href="https://js.arcgis.com/3.27/dijit/themes/claro/claro.css" />
<link rel="stylesheet" href="https://js.arcgis.com/3.27/esri/css/esri.css" />
<style>
html,
body,
#map {
height: 100%;
width: 100%;
margin: 0;
padding: 0;
}
</style>
<script src="https://js.arcgis.com/3.27/"></script>
<script>
require([
"esri/map",
"esri/layers/WMTSLayer",
"esri/layers/WMTSLayerInfo",
"esri/geometry/Extent",
"esri/layers/TileInfo",
"esri/SpatialReference",
"dojo/parser",
"dijit/layout/BorderContainer",
"dijit/layout/ContentPane",
"dojo/domReady!"
], function(
Map, WMTSLayer, WMTSLayerInfo,
Extent, TileInfo, SpatialReference
) {
var map = new Map("map", {
center: [120.675,30.75],
zoom: 19
});
var tileInfo = new TileInfo({
"dpi": 96,
"format": "format/png",
"compressionQuality": 0,
"spatialReference": new SpatialReference({"EPSG":4490 }),
"rows": 256,
"cols": 256,
"origin": {
"x": -180,
"y": 90
},
"lods": [
{"level": "0", "scale": 590995197.141669, "resolution": 1.40625},
{"level": "1", "scale": 295497598.570835, "resolution": 0.703125},
{"level": "2", "scale": 147748799.285417, "resolution": 0.3515625},
{"level": "3", "scale": 73874399.6427086, "resolution": 0.17578125},
{"level": "4", "scale": 36937199.8213543, "resolution":0.087890625},
{"level": "5", "scale": 18468599.9106772, "resolution": 0.0439453125},
{"level": "6","scale": 9234299.95533858, "resolution": 0.02197265625},
{"level": "7", "scale": 4617149.97766929, "resolution": 0.010986328125},
{"level": "8", "scale": 2308574.98883465, "resolution": 0.0054931640625},
{"level": "9", "scale": 1154287.49441732, "resolution": 0.00274658203125},
{"level": "10", "scale": 577143.747208661, "resolution": 0.001373291015625},
{"level": "11", "scale": 288571.873604331, "resolution": 0.0006866455078125},
{"level" : 12, "resolution" : 0.00034332275390625, "scale" : 144285.936802165},
{"level" : 13, "resolution" : 0.000171661376953125, "scale" : 72142.9684010827},
{"level" : 14, "resolution" : 8.58306884765625e-005, "scale" : 36071.4842005413},
{"level" : 15, "resolution" : 4.291534423828125e-005, "scale" : 18035.7421002707},
{"level" : 16, "resolution" : 2.1457672119140625e-005, "scale" : 9017.87105013533},
{"level" : 17, "resolution" : 1.0728836059570313e-005, "scale" : 4508.93552506767},
{"level" : 18, "resolution" : 5.3644180297851563e-006, "scale" : 2254.46776253383},
{"level" : 19, "resolution" : 0.0000053644180297851563, "scale" : 1127.23388126692},
{"level" : 20, "resolution" : 0.00000268220901489257815, "scale" : 563.616940633458}
]
});
var tileExtent = new Extent(117,20,123,59, new SpatialReference({"wkid": 4326}));
var layerInfo = new WMTSLayerInfo({
tileInfo: tileInfo,
fullExtent: tileExtent,
initialExtent: tileExtent,
identifier: "*",
tileMatrixSet: "TileMatrixSet0",
format: "png",
style: "default"
});
var resourceInfo = {
version: "1.0.0",
layerInfos: [layerInfo],
copyright: "天地圖"
};
var options = {
serviceMode: "KVP",
resourceInfo: resourceInfo,
layerInfo: layerInfo
};
wmtsLayer = new WMTSLayer("http://srv1.zjditu.cn/ZJEMAP_2D/wmts", options);
map.addLayer(wmtsLayer);
});
</script>
</head>
<body>
<div data-dojo-type="dijit/layout/BorderContainer" data-dojo-props="design:'headline', gutters:false" style="width: 100%; height: 100%; margin: 0;">
<div id="map" data-dojo-type="dijit/layout/ContentPane" data-dojo-props="region:'center'">
</div>
</div>
</body>
</html>
坑點
1，天地圖的座標系是脫敏過的，所以要定位到對應的範圍需要使用脫敏後的座標
2，wkid應該是4490，但是使用4490後會掉到海里，改成了4326。