Introduction
紀錄一下 ArcGIS API for Js 的一些應用
Conetent
一般底圖設定方式是使用 basemaps 進行設定，但其實如果對於地圖類型的 API 稍微熟悉的話，就會知道，其上的圖層是一層層堆疊的，底圖也就是最底層的那一層。
利用這個概念，透過 WebTiledLayer 載入圖層，並且保持 basemaps 為空，這樣所設定的第一層圖層就是底層囉。
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| <!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="initial-scale=1, maximum-scale=1,user-scalable=no">
<title></title>
<link rel="stylesheet" href="http://js.arcgis.com/3.15/esri/css/esri.css">
<style>
html, body, #map {
height: 100%; width: 100%;
margin: 0; padding: 0;
}
body{
background-color: #fff; overflow:hidden;
font-family: sans-serif;
}
#header {
padding: 4px 15px 4px 0;
background-color: #F2F2EC;
color: #575757;
font-size: 16pt;
text-align: right;
font-weight: bold;
height:55px;
}
#subheader {
color: #575757;
font-size: small;
padding: 5px 0 0 0;
text-align: right;
}
#subheader a { color: #575757; }
</style>
</head>
<body>
<div id="mainWindow"
data-dojo-type="dijit/layout/BorderContainer"
data-dojo-props="design:'headline',gutters:false"
style="width: 100%; height: 100%; margin: 0;">
<div id="header"
data-dojo-type="dijit/layout/ContentPane"
data-dojo-props="region:'top'">
Base Map Demo
</div>
<div id="map" class="shadow"
data-dojo-type="dijit/layout/ContentPane"
data-dojo-props="region:'center'">
</div>
</div>
<script src="http://js.arcgis.com/3.15/"></script>
</body>
</html>
|
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| var map;
require([
"esri/map", "esri/layers/WebTiledLayer", "dojo/parser",
"dijit/layout/BorderContainer", "dijit/layout/ContentPane", "dojo/domReady!"
], function(
Map, WebTiledLayer, parser
) {
parser.parse();
map = new Map("map", {
center: [121.2028889,24.8221225],
zoom: 8
});
var twMap = new WebTiledLayer("http://maps.nlsc.gov.tw/S_Maps/wmts?SERVICE=WMTS&REQUEST=GetTile&VERSION=1.0.0&LAYER=EMAP&STYLE=_null&TILEMATRIXSET=EPSG:3857&TILEMATRIX=EPSG:3857:{level}&TILEROW={row}&TILECOL={col}&FORMAT=image/png",{
"id": "baseMaptw"
})
var gooMap = new WebTiledLayer("http://mt0.google.com/vt/lyrs=m&hl=cht&x={col}&y={row}&z={level}&s=Ga", {
"copyright": "baseDemoMap",
"id": "baseGoomap",
});
map.addLayer(twMap);
});
|
Reference