OpenLayers使用symbolizers样式特征

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<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <title>使用symbolizers样式特征</title>
    <link rel="stylesheet" href="./OpenLayers-2.12/theme/default/style.css" type="text/css" />
    <script src="./OpenLayers-2.12/lib/OpenLayers.js"></script>
    <style>
        table.tm {
            width: 100%;
            height: 95%;
        }
        table.tm td.left, table.tm td.right {
            border: 1px solid #ccc;
            margin: 0;
            padding: 0;
        }

        table.tm td.left {
            width: 75%;
        }
        table.tm td.right {
            width: 25%;
            vertical-align: top;
            padding: 5px;
        }
        td span {
            font-weight: bold;
        }
    </style>
    <script type="text/javascript">
        function init(){
            var map = new OpenLayers.Map("using_symbolizers");
            var osm = new OpenLayers.Layer.OSM();
            map.addLayer(osm);
            map.setCenter(new OpenLayers.LonLat(0,0), 3)
            var vectorLayer = new OpenLayers.Layer.Vector("Features");
            vectorLayer.events.register('beforefeatureadded', vectorLayer, setFeatureStyle);
            map.addLayer(vectorLayer);
            var editingControl = new OpenLayers.Control.EditingToolbar(vectorLayer);
            map.addControl(editingControl);
            function setFeatureStyle(event) {
                var fillColor = getElementById('fillColor').get('value');
                var fillOpacity = getElementById('fillOpacity').get('value')/100;
                var strokeColor = getElementById('strokeColor').get('value');
                var strokeWidth = getElementById('strokeWidth').get('value');
                var strokeOpacity = getElementById('strokeOpacity').get('value')/100;
                var pointRadius = getElementById('pointRadius').get('value');
                var style = OpenLayers.Util.extend({}, OpenLayers.Feature.Vector.style['default']);
                style.fillColor = fillColor;
                style.fillOpacity = fillOpacity;
                style.strokeColor = strokeColor;
                style.strokeWidth = strokeWidth;
                style.strokeOpacity = strokeOpacity;
                style.pointRadius = pointRadius;
                event.feature.style = style;
            }
        }
    </script>
</head>
<body onload="init()">
    <table class="tm">
    <tr>
        <td class="left">
            <div id="using_symbolizers" style=" 100%; height: 95%;"></div>
        </td>
        <td class="right">
            <table>
                <tr>
                    <td>Fill Color:</td>
                    <td>
                        <div data-dojo-type="dijit.form.DropDownButton">
                            <span>Color</span>
                            <div data-dojo-type="dijit.TooltipDialog">
                                <div id="fillColor" data-dojo-type="dijit.ColorPalette" data-dojo-props="palette:'7x10'"></div>
                            </div>
                        </div>
                    </td>
                </tr>

                <tr>
                    <td>Fill Opacity: </td>
                    <td>
                        <div id="fillOpacity" dojoType="dijit.form.HorizontalSlider" value="100" minimum="0" maximum="100" intermediateChanges="true"
                             showButtons="false" style="200px;">
                            <div dojoType="dijit.form.HorizontalRule" container="bottomDecoration" count=11 style="height:5px;"></div>
                            <ol dojoType="dijit.form.HorizontalRuleLabels" container="bottomDecoration" style="height:1em;font-size:75%;color:gray;">
                                <li>0%</li>
                                <li>50%</li>
                                <li>100%</li>
                            </ol>
                        </div>
                    </td>
                </tr>
                <tr>
                    <td>Stroke Color:</td>
                    <td>
                        <div data-dojo-type="dijit.form.DropDownButton">
                            <span>Color</span>
                            <div data-dojo-type="dijit.TooltipDialog">
                                <div id="strokeColor" data-dojo-type="dijit.ColorPalette" data-dojo-props="palette:'7x10'"></div>
                            </div>
                        </div>
                    </td>
                </tr>
                <tr>
                    <td>Stroke Width:</td>
                    <td><input id="strokeWidth" dojoType="dijit.form.NumberSpinner" value="2" smallDelta="1" constraints="{min:1,max:10}" /></td>
                </tr>
                <tr>
                    <td>Stroke Opacity: </td>
                    <td>
                        <div id="strokeOpacity" dojoType="dijit.form.HorizontalSlider" value="100" minimum="0" maximum="100" intermediateChanges="true"
                             showButtons="false" style="200px;">
                            <div dojoType="dijit.form.HorizontalRule" container="bottomDecoration" count=11 style="height:5px;"></div>
                            <ol dojoType="dijit.form.HorizontalRuleLabels" container="bottomDecoration" style="height:1em;font-size:75%;color:gray;">
                                <li>0%</li>
                                <li>50%</li>
                                <li>100%</li>
                            </ol>
                        </div>
                    </td>
                </tr>
                <tr>
                    <td>Point radius:</td>
                    <td><input id="pointRadius" dojoType="dijit.form.NumberSpinner" value="4" smallDelta="1" constraints="{min:4,max:15}" /></td>
                </tr>                
            </table>
        </td>
    </tr>
</table>
<!-- 地图 DOM 元素 -->
    <div id="image" style=" 100%; height: 100%;"></div>
</body>
</html>
原文地址:https://www.cnblogs.com/Jeely/p/11175709.html