程序喵描述：
此示例演示如何添加OpenStreetMap的地图层，使用默认选项。在这个代码中，创建一个新的OpenStreetMapLayer一个添加到地图上。
osmLayer = new esri.layers.OpenStreetMapLayer();
map.addLayer(osmLayer);
有几个可选的构造函数的参数，可以用来定义附加的可见性，透明度和显示级别的值，
引用地址：http://help.arcgis.com/en/webapi/javascript/arcgis/help/jssamples_start.htm
在线演示：http://help.arcgis.com/en/webapi/javascript/arcgis/samples/map_openstreetmap/index.html
Dojo在线帮助API：http://dojotoolkit.org/api/
ArcGIS For JavaScript API ：http://help.arcgis.com/en/webapi/javascript/arcgis/index.html
dojo.require("esri.layers.osm");
esri.layers.OpenStreetMapLayer(options?) 允许你从OpenStreetMap的使用底图。设置tileservers属性来更改您要使用的OpenStreetMap tiles.
| 构造函数 | 描述 |
|---|---|
| esri.layers.OpenStreetMapLayer(options?) | 创建一个新的 OpenStreetMapLayer 对象 |
属性：
| 属性 | 类型 | 描述 |
|---|---|---|
| copyright | String | The copyright text. |
| <Object> options | 可选 | 可选参数列表 |
选项:
| <Number[]> displayLevels | An array of levels at which to draw. |
| <String> id | ID指定的层。如果没有指定，esri.Map指定值。 |
| <Number> opacity | 初始层的不透明度或透明度。值的范围从0.0到1.0之间，其中0.0是100％透明和1.0没有透明度。默认值是1.0。 |
| <String[]> tileServers | tile servers 的数组 |
| <Boolean> visible | 该层的初始可见性。默认值是true. |
参考代码:
osmLayer = new esri.layers.OpenStreetMapLayer();
map.addLayer(osmLayer);
osmLayer = new esri.layers.OpenStreetMapLayer({
id: "myOSMLayer",
visible: true,
opacity: .75,
displayLevels: [0,1,2]
});<!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"/>
<meta http-equiv="X-UA-Compatible" content="IE=7,IE=9" />
<!--The viewport meta tag is used to improve the presentation and behavior of the samples on iOS devices-->
<meta name="viewport" content="initial-scale=1, maximum-scale=1,user-scalable=no"/>
<title>OpenStreetMap的默认选项</title>
<link rel="stylesheet" type="text/css" href="http://serverapi.arcgisonline.com/jsapi/arcgis/3.2/js/dojo/dijit/themes/claro/claro.css">
<link rel="stylesheet" type="text/css" href="http://serverapi.arcgisonline.com/jsapi/arcgis/3.2/js/esri/css/esri.css" />
<script type="text/javascript">
var djConfig = {
parseOnLoad: true
};
</script>
<script type="text/javascript" src="http://serverapi.arcgisonline.com/jsapi/arcgis/?v=3.2"></script>
<script type="text/javascript">
// 导入包
dojo.require("esri.map");
dojo.require("esri.layers.osm");
var map, osmLayer;
function init() {
//设置的版权文本在右下角 http://www.openstreetmap.org/copyright
var copyrightText= '© <a href="http://www.openstreetmap.org/" target="_blank">OpenStreetMap</a> 贡献者, '
+ '<a href="http://creativecommons.org/licenses/by-sa/2.0/" target="_blank">CC-BY-SA</a>';
dojo.byId('osmCopy').innerHTML = copyrightText;
var extent = new esri.geometry.Extent({
"xmin":-10023722.578230502, // 左下角X坐标
"ymin":3498675.6586681586, // 左下角Y坐标
"xmax":-9996969.618330726, // 右上角X坐标
"ymax":3517784.9157394273, // 右上角Y坐标
"spatialReference":{ // 空间参考
"wkid":102100
}
});
map = new esri.Map(
"map", // domID
{extent:extent, // 范围
logo:false // 不显示logo
}
);
osmLayer = new esri.layers.OpenStreetMapLayer(); // 创建一个OpenStreetMapLayer层
map.addLayer(osmLayer);
var details = "";
details = "loaded(加载): " + osmLayer.loaded + "<br />";
details += "initialExtent(初始范围): " + dojo.toJson(osmLayer.initialExtent.toJson()) + "<br />";
details += "fullExtent(完整范围): " + dojo.toJson(osmLayer.fullExtent.toJson()) + "<br />";
details += "spatialReference(空间参考): " + dojo.toJson(osmLayer.spatialReference.toJson())+ "<br />";
dojo.byId("info").innerHTML = details;
}
dojo.addOnLoad(init);
</script>
</head>
<body class="claro" style="font-size: small; font-family: Arial Unicode MS,Arial,sans-serif;">
<div id="map" style="position:relative;width:700px; height:500px; border:1px solid #000;">
<div id="osmCopy" style="position:absolute; color:black;font-weight:bold;right:10px; bottom:10px; z-Index:999;"></div>
</div>
<div id="info" style="padding:5px; margin:5px; background-color:#eee;"></div>
</body>
</html>效果：
未经允许请勿转载：程序喵 » ArcGIS For JavaScript API OpenStreetMap Layer (打开街道地图层)