arcgis for javascript 鼠标移到对象上面则置亮并弹出气泡

这里写图片描述
自定义提示框，通过给要素涂层添加鼠标事件，将信息弹出来。

全部代码：

<!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>Feature Layer - display results as an InfoWindow onHover</title>

    <link rel="stylesheet" href="https://js.arcgis.com/3.25/dijit/themes/tundra/tundra.css">
    <link rel="stylesheet" href="https://js.arcgis.com/3.25/esri/css/esri.css">
    <style>
      html, body, #mapDiv {
        padding:0;
        margin:0;
        height:100%;
      }
      #mapDiv {
        position: relative;
      }
      #info {
        background: #fff;
        box-shadow: 0 0 5px #888;
        left: 1em;
        padding: 0.5em;
        position: absolute;
        top: 1em;
        z-index: 40;
      }
    </style>

    <script src="https://js.arcgis.com/3.25/"></script>
    <script>
        var map, dialog;
        require([
        "esri/map", 
        "esri/layers/FeatureLayer",
        "esri/symbols/SimpleFillSymbol", 
        "esri/symbols/SimpleLineSymbol",
        "esri/renderers/SimpleRenderer",
        "esri/graphic", 
        "esri/lang",
        "esri/Color",
        "dojo/number",
        "dojo/dom-style",
        "dijit/TooltipDialog",
        "dijit/popup", 
        "dojo/domReady!"
      ], function (
        Map, FeatureLayer,
        SimpleFillSymbol, SimpleLineSymbol,
        SimpleRenderer, Graphic, esriLang,
        Color, number, domStyle,
        TooltipDialog, dijitPopup
      ) {
          map = new Map("mapDiv", {
              basemap: "streets",
              center: [-80.94, 33.646],
              zoom: 8,
              slider: false
          });

          var southCarolinaCounties = new FeatureLayer("https://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Demographics/ESRI_Census_USA/MapServer/3", {
              mode: FeatureLayer.MODE_SNAPSHOT,
              outFields: ["NAME", "POP2000", "POP2007", "POP00_SQMI", "POP07_SQMI"]
          });
          southCarolinaCounties.setDefinitionExpression("STATE_NAME = 'South Carolina'");

          var symbol = new SimpleFillSymbol(
          SimpleFillSymbol.STYLE_SOLID,
          new SimpleLineSymbol(
            SimpleLineSymbol.STYLE_SOLID,
            new Color([255, 255, 255, 0.35]),
            1
          ),
          new Color([125, 125, 125, 0.35])
        );
          southCarolinaCounties.setRenderer(new SimpleRenderer(symbol));
          map.addLayer(southCarolinaCounties);

          map.infoWindow.resize(245, 125);

          dialog = new TooltipDialog({
              id: "tooltipDialog",
              style: "position: absolute; width: 250px; font: normal normal normal 10pt Helvetica;z-index:100"
          });
          dialog.startup();
          //高亮显示
          var highlightSymbol = new SimpleFillSymbol(
          SimpleFillSymbol.STYLE_SOLID,
          new SimpleLineSymbol(
            SimpleLineSymbol.STYLE_SOLID,
            new Color([255, 0, 0]), 3
          ),
          new Color([125, 125, 125, 0.35])
        );

          //关闭信息框不在高亮显示c
          map.on("load", function () {
              map.graphics.enableMouseEvents();
              map.graphics.on("mouse-out", closeDialog);

          });

        //为要素图层注册鼠标移入事件
          southCarolinaCounties.on("mouse-over", function (evt) {
              var t = "<b>${NAME}</b><hr><b>2000 人口数量: </b>${POP2000:NumberFormat}<br>"
            + "<b>2000 人口密度: </b>${POP00_SQMI:NumberFormat}<br>"
            + "<b>2007 人口密度:</b>${POP2007:NumberFormat}<br>"
            + "<b>2007 人口密度: </b>${POP07_SQMI:NumberFormat}";
              //attributes中的字段进行替换
              var content = esriLang.substitute(evt.graphic.attributes, t);
              var highlightGraphic = new Graphic(evt.graphic.geometry, highlightSymbol);
              map.graphics.add(highlightGraphic);

              dialog.setContent(content);

              domStyle.set(dialog.domNode, "opacity", 0.85);
              dijitPopup.open({
                  popup: dialog,
                  x: evt.pageX,
                  y: evt.pageY
              });
          });

          function closeDialog() {
              map.graphics.clear();
              dijitPopup.close(dialog);
          }

      });
    </script>
  </head>
  <body class="tundra">
    <div id="mapDiv">
      <div id="info">
        Hover over a county in South Carolina to get more information.
      </div>
    </div>
  </body>
</html>

 

posted @ 2018-06-09 21:13  HPUGIS  阅读(534)  评论(0)  编辑  收藏  举报