.NET平台下专题地图实现的C#代码 private void 点密度图ToolStripMenuItem_Click(object sender, EventArgs e) { //获取当前图层 ，并把它设置成IGeoFeatureLayer的实例 IMap pMap = axMapControl1.Map ILayer pLayer = pMap.get_Layer(0) as IFeatureLayer IFeatureLayer pFeatureLayer = pLayer as IFeatureLayer IGeoFeatureLayer pGeoFeatureLayer = pLayer as IGeoFeatureLayer //获取图层上的feature IFeatureClass pFeatureClass = pFeatureLayer.FeatureClass IFeatureCursor pFeatureCursor = pFeatureClass.Search(null, false) IFeature pFeature = pFeatureCursor.NextFeature()
