描述:此示例演示如何使用地理编码部件,在版本3.3中,找到兴趣点和显示图形在地图上。测试样品的行为输入的兴趣点,如“disney(迪士尼)”,并查看结果。
参考联接:http://help.arcgis.com/en/webapi/javascript/arcgis/jssamples/#sample/locator_poi
在线演示:http://help.arcgis.com/en/webapi/javascript/arcgis/samples/locator_poi/index.html
配置符号API:http://help.arcgis.com/zh-CN/webapps/sharepoint/help/index.html#//015900000024000000
代码分析如下:
<!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=7,IE=9" /> <meta name="viewport" content="initial-scale=1, maximum-scale=1,user-scalable=no"/> <title>ArcGIS API for JavaScript | Place Finding</title> <link rel="stylesheet" href="http://serverapi.arcgisonline.com/jsapi/arcgis/3.3/js/esri/css/esri.css"> <style> html, body, #map { height:100%; width:100%; margin:0; padding:0; } #search { display: block; position: absolute; z-index: 2; top: 20px; left: 74px; } </style> <script src="http://serverapi.arcgisonline.com/jsapi/arcgis/3.3"></script> <script> // 导入包 dojo.require("esri.map"); dojo.require("esri.dijit.Popup"); dojo.require("esri.dijit.Geocoder"); var map, geocoder; dojo.ready(function() { var popup = new esri.dijit.Popup(null, dojo.create("div")); // 创建地图 map = new esri.Map("map",{ basemap: "topo", // 指定的地图底图。以下是有效选项:"streets","satellite","hybrid","topo","gray","oceans","national-geographic","osm". center: [ -100, 37 ], // long, lat zoom: 5, infoWindow: popup }); // 添加图形层进行地理编码结果 map.addLayer(new esri.layers.GraphicsLayer({ id: "results" })); // 创建地理编码 geocoder = new esri.dijit.Geocoder({ autoNavigate: false, // 如果为true,部件将导航到选定的位置。 maxLocations: 20, // 在结果菜单中显示位置的最大值 map: map, // 对应map地图,必填项 arcgisGeocoder: { url: "http://geocode.arcgis.com/arcgis/rest/services/World/GeocodeServer", name: "Esri World Geocoder", placeholder: "找到位置", sourceCountry: "USA" // 限制搜索美国 } }, "search"); geocoder.startup(); // 开启 geocoder.focus(); // 获得焦点 var symbol = new esri.symbol.PictureMarkerSymbol({ "angle":0, // 角 "xoffset":0, // x偏移 "yoffset":10, // y偏移 "type":"esriPMS", // 参考上面配置符号API链接 "url":"http://static.arcgis.com/images/Symbols/Shapes/BluePin1LargeB.png", "contentType":"image/png", "width":24, "height":24 }); var template = new esri.InfoTemplate("${name}", "${*}"); //使用通配符方式填充内容 dojo.connect(geocoder, "onFindResults", function(response) { // 当搜索返回的结果时候触发。 console.log("查找结果: ", response); var l = map.getLayer("results"); // 返回在地图上的一个单独 Layer。 l.clear(); // 清除之前显示 map.infoWindow.hide(); // 隐藏 // 遍历搜索结果 dojo.forEach(response.results, function(r) { alert("r.feature.attributes.name: "+r.feature.attributes.name+",r.name: "+r.name); r.feature.attributes.name = r.name; r.feature.setSymbol(symbol); // 添加图标 r.feature.setInfoTemplate(template); // 添加消息框 l.add(r.feature); }); }); }); </script> </head> <body> <div id="search"></div> <div id="map"></div> </body> </html>
当输入景点名称,显示结果如下:
未经允许请勿转载:程序喵 » ArcGIS For JavaScript API Locate points of interest —— 找到景点