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  • OpenLayers使用symbolizers样式特征

    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
    <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>
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  • 原文地址:https://www.cnblogs.com/Jeely/p/11175709.html
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