siwei
/
web-server


			
				
					
						
						
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							<html>
<head>
    <meta charset="utf-8">
    <meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no">
    <title>MapImageLayer - create dynamic map layers - 4.5</title>

    <link rel="stylesheet" href="https://js.arcgis.com/4.5/esri/css/main.css">
    <script src="https://js.arcgis.com/4.5/"></script>

    <style>
        html,
        body,
        #viewDiv {
            padding: 0;
            margin: 0;
            height: 100%;
            width: 100%;
        }

        #info-div {
            background-color: white;
            border-radius: 8px;
            padding: 8px;
            opacity: 0.92;
        }
    </style>

    <script>
        require(["esri/config"], function (esriConfig) {
            esriConfig.request.corsEnabledServers.push("localhost:8080");
        });
        require([
            "esri/Map",
            "esri/views/MapView",
            "esri/layers/MapImageLayer",
            "esri/widgets/Legend",
            "dojo/domReady!"
        ], function (Map, MapView, MapImageLayer, Legend) {

            var layer = new MapImageLayer({
                url: "http://localhost:8080/geoserver/gsr/services/tiger/MapServer",
                title: "Census Demographics"
            });

            /*****************************************************************
             * Add the layer to a map
             *****************************************************************/

            var map = new Map({
                layers: [layer]
            });

            var view = new MapView({
                container: "viewDiv",
                map: map,
                extent: { // autocasts as new Extent()
                    xmin: -74.0118315772888,
                    ymin: 40.70754683896324,
                    xmax: -74.00153046439813,
                    ymax: 40.719885123828675,
                    spatialReference: 4326
                }
            });
        });
    </script>

</head>

<body>
<div id="viewDiv"></div>
<div id="info-div">
    Select a demographic variable<br><br>
    <select id="layer-select">
        <option value="0">Population density</option>
        <option value="1" selected>Renter occupied units</option>
        <option value="2">Median age</option>
    </select>
</div>
</body>

</html>

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