SuperMap学习系列（四）—鼠标移动（高亮显示）

2016/7/21 14:54:53 0人评论 3695 次

SuperMap学习系列（四）—鼠标移动（高亮显示）
学习笔记，方便以后查阅。参考超图技术资源中心--代码库：
http://support.supermap.com.cn/ProductCenter/ResourceCenter/CodeLibrary.aspx

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			<p><!DOCTYPE html>  
		
			<html xmlns="<a target="_blank" href="http://www.w3.org/1999/xhtml">http://www.w3.org/1999/xhtml</a>">  
		
			<head>  
		
			    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />  
		
			    <title></title>   
		
			    <script src="libs/SuperMap.Include.js"></script>  
		
			    <script type="text/javascript">      
		
			        var style = {  
		
			            strokeColor: "#304DBE",  
		
			            strokeOpacity: 0,  
		
			            fillColor: "#00ff00",  
		
			            fillOpacity: 0,  
		
			        };  
		
			        var selectStyle = {  
		
			            fillColor: "#ffcc33",  
		
			            strokeColor: "#ccff99",  
		
			            strokeWidth: 2,  
		
			            graphZIndex: 1  
		
			        };  
		
			        var map, layer, vectorLayer, selectFeature;  
		
			        // 设置访问的GIS服务地址  
		
			        var url = "<a target="_blank" href="http://localhost:8090/iserver/services/map-ChinaTestWorkPlace/rest/maps/ChinaTest">http://localhost:8090/iserver/services/map-ChinaTestWorkPlace/rest/maps/ChinaTest</a>";  
		
			        function GetMap() {  
		
			            // 创建地图对象  
		
			            map = new SuperMap.Map("map");  
		
			            //control = new SuperMap.Control.MousePosition();     //该控件显示鼠标移动时，所在点的地理坐标。  
		
			            //map.addControl(control);  //添加控件  
		
			            // 创建图层对象  
		
			            layer = new SuperMap.Layer.TiledDynamicRESTLayer("World", url, { transparent: true, cacheEnabled: true }, { maxResolution: "auto" });  
		
			            layer.events.on({ "layerInitialized": addLayer });  
		
			            vectorLayer = new SuperMap.Layer.Vector("Vector Layer");</p><p>            selectFeature = new SuperMap.Control.SelectFeature(vectorLayer, {  
		
			                onSelect: onFeatureSelect,  
		
			                onUnselect: onUnFeatureSelect,  
		
			                hover: true  
		
			            });  
		
			            map.addControl(selectFeature);  
		
			            selectFeature.activate();  
		
			        }  
		
			        // 加载图层  
		
			        function addLayer() {  
		
			            // 向Map添加图层  
		
			            map.addLayers([layer, vectorLayer]);  
		
			            map.setCenter(new SuperMap.LonLat(116.409749, 39.912344), 1);            
		
			            QueryBySQL();  
		
			        }  
		
			        //查询函数  
		
			        function QueryBySQL() {  
		
			            var queryParam, queryBySQLParams, queryBySQLService;  
		
			            //SuperMap.REST.FilterParameter 查询过滤条件参数类。 该类用于设置查询数据集的查询过滤参数。   
		
			            queryParam = new SuperMap.REST.FilterParameter({  
		
			                name: "<a target="_blank" href="mailto:Provinces_R@China400">Provinces_R@China400</a>"   //ChinaTest地图中的图层名称  
		
			            });  
		
			            //SuperMap.REST.QueryBySQLParameters SQL 查询参数类。 该类用于设置 SQL 查询的相关参数。   
		
			            queryBySQLParams = new SuperMap.REST.QueryBySQLParameters({  
		
			                queryParams: [queryParam]  
		
			            });  
		
			            //SuperMap.REST.QueryBySQLService SQL 查询服务类。 在一个或多个指定的图层上查询符合 SQL 条件的空间地物信息。   
		
			            queryBySQLService = new SuperMap.REST.QueryBySQLService(url, {  
		
			                eventListeners: { "processCompleted": processCompleted, "processFailed": processFailed }  
		
			            });  
		
			            queryBySQLService.processAsync(queryBySQLParams);  
		
			        }  
		
			        //查询成功  
		
			        function processCompleted(queryEventArgs) {  
		
			            var i, j, feature,  
		
			                    result = queryEventArgs.result;  
		
			            if (result && result.recordsets) {  
		
			                for (i = 0; i < result.recordsets.length; i++) {  
		
			                    if (result.recordsets[i].features) {  
		
			                        for (j = 0; j < result.recordsets[i].features.length; j++) {  
		
			                            feature = result.recordsets[i].features[j];  
		
			                            feature.style = style;  
		
			                            vectorLayer.addFeatures(feature);  
		
			                        }  
		
			                    }  
		
			                }  
		
			            }  
		
			        }  
		
			        function processFailed(e) {  
		
			            alert(e.error.errorMsg);  
		
			        }  
		
			        function onUnFeatureSelect(feature) {  
		
			            feature.style = style;  
		
			            vectorLayer.redraw();  
		
			        }  
		
			        function onFeatureSelect(feature) {  
		
			            feature.style = selectStyle;  
		
			            vectorLayer.redraw();  
		
			        }         
		
			    </script>  
		
			</head>  
		
			<body onload="GetMap()">      
		
			    <div id="map" style="height: 640px; width: 720px; border: 1px solid red; margin-left: auto; margin-right: auto;"></div>  
		
			</body>  
		
			</html>  
		
			</p>