超图 获取空间所有集合

 Layer3D L3D = this.m_sceneControl.Scene.Layers["水质点@qtdetail#1"];
            
             Recordset rd = ((L3D as Layer3DDataset).Dataset as DatasetVector).GetRecordset(false, CursorType.Dynamic);            
             Dictionary<int, Feature> dataMap = rd.GetAllFeatures();
             foreach (Feature fea in dataMap.Values)
             {
 
             }