ArcGIS API 入門（一）
在3D環境中渲染一個地圖
下面通過一個sample簡單介紹一下如何導入地圖
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no">
<title>Intro to SceneView - Create a 3D map - 4.10</title>
<style>
html,
body,
#viewDiv {
padding: 0;
margin: 0;
height: 100%;
width: 100%;
}
</style>
<link rel="stylesheet" href="https://js.arcgis.com/4.10/esri/css/main.css" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" >
<script src="https://js.arcgis.com/4.10/"></script>
<script>
require([
"esri/Map",
"esri/views/SceneView"
], function(Map, SceneView) {
var map = new Map({
basemap: "streets",
ground: "world-elevation"
});
var view = new SceneView({
container: "viewDiv",
map: map,
scale: 50000000,
center: [-101.17, 21.78]
});
});
</script>
</head>
<body>
<div id="viewDiv"></div>
</body>
</html>
1.通過引入css樣式以及ArcGIS的 API
<link rel="stylesheet" href="https://js.arcgis.com/4.10/esri/css/main.css" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" >
<script src="https://js.arcgis.com/4.10/"></script>
2.引入一些需要的子產品
- Map子產品：存儲，管理圖層的容器
- SceneView子產品：渲染3D視圖
require([
"esri/Map",
"esri/views/SceneView"
], function(Map, SceneView) {
3.建立Map
- basemap：底圖，導入預置底圖“street”，它為MapView或SceneView以及地圖中的其他操作層提供地理上下文。
- ground：高程，使用Terrain3D服務的ground的預設執行個體
var map = new Map({
basemap: "streets",
ground: "world-elevation"
});
4.建立View
- map：需要渲染的地圖的執行個體
- container：挂載視圖的容器
- scale：比例尺
- center：表示視圖的中心點
var view = new SceneView({
container: "viewDiv",
map: map,
scale: 50000000,
center: [-101.17, 21.78]
});
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