arcgis api javascript 之FeatureLayer图层实现热力图

本文主要通过json获取的点坐标生成热力图

html:

html>
style="height: 100%;">

    charset="UTF-8"/>
    name="viewport" content="width=device-width, initial-scale=1"/>
    http-equiv="Content-Type" content="textml; charset=utf-8"/>
    content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0" name="viewport"/>
    name="apple-mobile-web-app-capable" content="yes"/>
    name="apple-mobile-web-app-status-bar-style" content="black"/>
    name="format-detection" content="telephone=no"/>
    name="description" content=""/>
    name="apple-touch-fullscreen" content="YES"/>
    http-equiv="Expires" content="-1"/>
    rel="stylesheet" href="../src/themes/default/easyui.css"/>
    rel="stylesheet" href="../src/themes/icon.css"/>
    
    
    rel="stylesheet" href="../src/themes/metro/easyui.css"/>
    rel="stylesheet"
          href="http://localhost:8080/arcgis_js_v320_api/arcgis_js_api/library/3.20/3.20/dijit/themes/nihilo/nihilo.css">
    rel="stylesheet"
          href="http://localhost:8080/arcgis_js_v320_api/arcgis_js_api/library/3.20/3.20/esri/css/esri.css">
    

    </span><span style="color:#e8bf6a">
    
    
    
    



style="width:99%;height:100%;">

style="width:100%;height:100%;">
id="cc" class="easyui-layout" style="width:100%;height:100%;">
data-options="region:'north'" style="height:10%">
data-options="region:'west',split:true" title="内容列表" style="width:200px;">
    id="tt" class="easyui-tree">
id="layadd" data-options="region:'center'" title="地图">
id="mapDiv" style="height: 100%;">
上面的

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