ArcGIS API for js Legend（图例）

最新推荐文章于 2023-03-09 15:33:38 发布

转载最新推荐文章于 2023-03-09 15:33:38 发布 · 2k 阅读

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CC 4.0 BY-SA版权

原文链接：http://www.cnblogs.com/net064/p/10309758.html

文章标签：

#javascript #ViewUI

本文介绍如何将ArcGIS API for JavaScript部署到IIS服务器，并通过示例代码展示地图与图例的加载过程。文章包含html代码片段，演示了如何使用ArcGIS API创建地图并添加图层，同时提供了地图的运行效果预览。

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1、说明

有关怎么把ArcGIS API for js部署到IIS上，请参考我上面的写的博客https://www.cnblogs.com/net064/p/10302660.html

2、运行效果

3、html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>Map with legend</title>

      <link rel="stylesheet" type="text/css" href="http://localhost/arcgis_js_api/library/3.3/jsapi/js/dojo/dijit/themes/claro/claro.css"/>
<link rel="stylesheet" type="text/css" href="http://localhost/arcgis_js_api/library/3.3/jsapi/js/esri/css/esri.css" />

  <style>
    html, body {
      height: 97%;
      width: 98%;
      margin: 1%;
    }

    #rightPane {
      width: 20%;
    }

    #legendPane {
      border: solid #97DCF2 1px;
    }
  </style>

      <script type="text/Javascript" src="http://localhost/arcgis_js_api/library/3.3/jsapi/init.js"></script>
  <script>
      var map;
      require([
        "esri/map", "esri/layers/FeatureLayer", "esri/dijit/Legend",
        "dojo/_base/array", "dojo/parser",
        "dijit/layout/BorderContainer", "dijit/layout/ContentPane",
        "dijit/layout/AccordionContainer", "dojo/domReady!"
      ], function (
        Map, FeatureLayer, Legend,
        arrayUtils, parser
      ) {
          parser.parse();

          map = new esri.Map("map", {
              basemap: "topo",
              center: [-96.53, 38.374],
              zoom: 13
          });

          var rivers = new FeatureLayer("https://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Hydrography/Watershed173811/MapServer/1", {
              mode: FeatureLayer.MODE_ONDEMAND,
              outFields: ["*"]
          });
          var waterbodies = new FeatureLayer("https://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Hydrography/Watershed173811/MapServer/0", {
              mode: FeatureLayer.MODE_ONDEMAND,
              outFields: ["*"]
          });

          //add the legend
          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();
              }
          });

          map.addLayers([waterbodies, rivers]);
      });
  </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>
</body>

</html>

其中的代码

map = new esri.Map("map", {
basemap: "topo",
center: [-96.53, 38.374],
zoom: 13
});

也可以改写成如下面的格式

MyMap = new esri.Map("map", {center: [-96.53, 38.374],zoom: 13});
MyTiledMapServiceLayer = new esri.layers.ArcGISTiledMapServiceLayer
("http://localhost/arcgis/rest/services/DZDT2012/MapServer");
MyMap.addLayer(MyTiledMapServiceLayer);

转载于:https://www.cnblogs.com/net064/p/10309758.html