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ArcGIS API for JavaScript开发教程系列(二)之地图控件

2016-03-16 15:33 716 查看

ArcGIS API for JavaScript开发教程系列(二)之地图控件

集成地图常用的控件：鹰眼、比例尺、图例，本实例就能实现了

javascript部分：

var map;
require([
"esri/map", "esri/dijit/OverviewMap", "esri/dijit/Scalebar", "esri/arcgis/utils",
"esri/layers/FeatureLayer", "esri/dijit/Legend", "dojo/_base/array",
"dojo/parser",
"dijit/layout/BorderContainer", "dijit/layout/ContentPane","dijit/TitlePane",
"dijit/layout/AccordionContainer","dojo/domReady!"
], function (
Map, OverviewMap, Scalebar, arcgisUtils, FeatureLayer, Legend, arrayUtils,
parser
) {
parser.parse();
//创建地图，并添加"topo"为底图
map = new Map("map", {
basemap: "topo",
center: [-96.53, 38.374],
zoom: 13
});
//新建rivers图层
var rivers = new FeatureLayer("https://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Hydrography/Watershed173811/MapServer/1", {
mode: FeatureLayer.MODE_ONDEMAND,
outFields: ["*"]
});
//新建waterbodies图层
var waterbodies = new FeatureLayer("https://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Hydrography/Watershed173811/MapServer/0", {
mode: FeatureLayer.MODE_ONDEMAND,
outFields: ["*"]
});
//把图层加入到地图
map.addLayers([waterbodies, rivers]);

//添加图例
map.on("layers-add-result", function (evt) {
var layerInfo = arrayUtils.map(evt.layers, function (layer, index) {
return { layer: layer.layer, title: layer.layer.name };
});
if (layerInfo.length > 0) {
var legendDijit = new Legend({
map: map,
layerInfos:layerInfo
}, "legendDiv");
legendDijit.startup();
}
});

//添加鹰眼图
var overviewMapDijit = new OverviewMap({
//设置鹰眼控件的地图
map: map,
//设置是否可见
visible: true,
//鹰眼控件放置的位置
attachTo:"bottom-left"
});
overviewMapDijit.startup();

//添加比例尺
var scalebar = new Scalebar({
map: map,
//比例尺单位
scalebarUnit: "dual",
//放置的位置
attachTo:"bottom-left"
});
});


css部分：

html, body { height: 97%; width: 98%; margin: 1%; padding: 0; }
#rightPane {
width:20%;
}
#legendPane {
border:solid #97DCF2 1px;
}


html部分：

<div id="content"
data-dojo-type="dijit/layout/BorderContainer"
data-dojo-props="design:'headline', gutters:true"
style="width: 100%; height: 100%; margin:0;">
<div id="rightPane"
data-dojo-type="dijit/layout/ContentPane"
data-dojo-props="region:'right'" >

<div data-dojo-type="dijit/layout/AccordionContainer">
<div data-dojo-type="dijit/layout/ContentPane" id="legendPane"
data-dojo-props="title:'Legend',selected:true">
<div id="legendDiv"></div>
</div>
<div data-dojo-type="dijit/layout/ContentPane"
data-dojo-props="title:'Pane 2'">
This pane could contain tools or additional content
</div>
</div>
</div>
<div id="map"
data-dojo-type="dijit/layout/ContentPane"
data-dojo-props="region:'center'"
style="overflow:hidden;">
</div>
<div id="bookmarks"></div>
</div>


这里是完整的代码：

<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">

<meta name="viewport" content="initial-scale=1, maximum-scale=1,user-scalable=no">
<title>Overview Map</title>
<!--引入-->
<link rel="stylesheet" href="https://js.arcgis.com/3.16/dijit/themes/claro/claro.css">
<link rel="stylesheet" href="https://js.arcgis.com/3.16/esri/css/esri.css">
<style>
html, body { height: 97%; width: 98%; margin: 1%; padding: 0; }
#rightPane {
width:20%;
}
#legendPane {
border:solid #97DCF2 1px;
}
</style>

<script src="https://js.arcgis.com/3.16/"></script>
<script>var map;
require([
"esri/map", "esri/dijit/OverviewMap", "esri/dijit/Scalebar", "esri/arcgis/utils",
"esri/layers/FeatureLayer", "esri/dijit/Legend", "dojo/_base/array",
"dojo/parser",
"dijit/layout/BorderContainer", "dijit/layout/ContentPane","dijit/TitlePane",
"dijit/layout/AccordionContainer","dojo/domReady!"
], function (
Map, OverviewMap, Scalebar, arcgisUtils, FeatureLayer, Legend, arrayUtils,
parser
) {
parser.parse();
//创建地图，并添加"topo"为底图
map = new Map("map", {
basemap: "topo",
center: [-96.53, 38.374],
zoom: 13
});
//新建rivers图层
var rivers = new FeatureLayer("https://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Hydrography/Watershed173811/MapServer/1", {
mode: FeatureLayer.MODE_ONDEMAND,
outFields: ["*"]
});
//新建waterbodies图层
var waterbodies = new FeatureLayer("https://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Hydrography/Watershed173811/MapServer/0", {
mode: FeatureLayer.MODE_ONDEMAND,
outFields: ["*"]
});
//把图层加入到地图
map.addLayers([waterbodies, rivers]);

//添加图例
map.on("layers-add-result", function (evt) {
var layerInfo = arrayUtils.map(evt.layers, function (layer, index) {
return { layer: layer.layer, title: layer.layer.name };
});
if (layerInfo.length > 0) {
var legendDijit = new Legend({
map: map,
layerInfos:layerInfo
}, "legendDiv");
legendDijit.startup();
}
});

//添加鹰眼图
var overviewMapDijit = new OverviewMap({
//设置鹰眼控件的地图
map: map,
//设置是否可见
visible: true,
//鹰眼控件放置的位置
attachTo:"bottom-left"
});
overviewMapDijit.startup();

//添加比例尺
var scalebar = new Scalebar({
map: map,
//比例尺单位
scalebarUnit: "dual",
//放置的位置
attachTo:"bottom-left"
});
});</script>
</head>
<body class="claro">
<div id="content"
data-dojo-type="dijit/layout/BorderContainer"
data-dojo-props="design:'headline', gutters:true"
style="width: 100%; height: 100%; margin:0;">
<div id="rightPane"
data-dojo-type="dijit/layout/ContentPane"
data-dojo-props="region:'right'" >

<div data-dojo-type="dijit/layout/AccordionContainer">
<div data-dojo-type="dijit/layout/ContentPane" id="legendPane"
data-dojo-props="title:'Legend',selected:true">
<div id="legendDiv"></div>
</div>
<div data-dojo-type="dijit/layout/ContentPane"
data-dojo-props="title:'Pane 2'">
This pane could contain tools or additional content
</div>
</div>
</div>
<div id="map"
data-dojo-type="dijit/layout/ContentPane"
data-dojo-props="region:'center'"
style="overflow:hidden;">
</div>
<div id="bookmarks"></div>
</div>
</body>
</html>


这是最后的实现效果

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