iserver 做数据查询时,我通过 name 查询出来了一个点,怎么获得这个点的坐标,然后把它标记出来呢
这是我的部分代码,该怎么写呢
getFeatureParam = new SuperMap.REST.FilterParameter({
name: "公交站点@XY",
attributeFilter: "NAME='"+zhandian+"'",
fields:['SmX','SmY']
});
getFeatureBySQLParams = new SuperMap.REST.GetFeaturesBySQLParameters({
queryParameter: getFeatureParam,
datasetNames: ["XY:公交站点"]
});
//查询成功,执行 processCompleted 失败,执行 processFailed
getFeatureBySQLService = new SuperMap.REST.GetFeaturesBySQLService(url2, {
eventListeners: {"processCompleted": processCompleted, "processFailed": processFailed}
});
getFeatureBySQLService.processAsync(getFeatureBySQLParams);
}
//在地图上显示
function processCompleted(getFeaturesEventArgs) {
var size = new SuperMap.Size(21, 21);
var offset = new SuperMap.Pixel(-(size.w / 2), -size.h);
var icon = new SuperMap.Icon('./images/marker.png', size, offset);
var i, len, features, feature, result = getFeaturesEventArgs.result;
if (result && result.features) {
features = result.features
for (i = 0, len = features.length; i < len; i++) {
feature = features[i];
//alert(feature.LonLat{lat});
//markerlayer.addMarker(new SuperMap.Marker(new SuperMap.LonLat(feature.LonLat.lon,feature.LonLat.lat), icon));
//map.setCenter(new SuperMap.LonLat(feature.LonLat{lat},feature.LonLat{lon}), 5);
feature.style = style;
markerlayer.addFeatures(feature);
}
}
}