/// <summary> /// ��mdb��vctת��ʱ����ʼ��ͼ���б� /// </summary> private bool InitialFeatureList() { try { if (m_pIDataset == null) return false; m_FeatureList = new List<TableLayer>(); IEnumDataset pEnumDataset = m_pIDataset.Subsets; IDataset pSet = pEnumDataset.Next(); while (pSet != null) { FeatureLayer pFeatureLayer = null; IFeatureClass pFeatureCls = pSet as IFeatureClass; string sGeometryType = ""; ///�������ļ���ȡҪ������ Metadata.MetaTable pMetaTable = Metadata.MetaDataFile.MetaTabls[pSet.Name] as Metadata.MetaTable; if (pMetaTable != null) { sGeometryType = pMetaTable.Type; } else { ///��������ڱ����������� pSet = pEnumDataset.Next(); continue; } ///����Ҫ�����ʹ���vct�ռ����ݽڵ� esriGeometryType pFeatureType = pFeatureCls.ShapeType; if (pFeatureType == esriGeometryType.esriGeometryLine || pFeatureType == esriGeometryType.esriGeometryPolyline) { ///�����߽ڵ� pFeatureLayer = new LineLayer(); if (sGeometryType == "") sGeometryType = "Line"; } else if (pFeatureType == esriGeometryType.esriGeometryPolygon) { //������ڵ� pFeatureLayer = new PolygonLayer(); if (sGeometryType == "") sGeometryType = "Polygon"; } else if (pFeatureType == esriGeometryType.esriGeometryPoint) { pFeatureLayer = new PointLayer(); if (sGeometryType == "") sGeometryType = "Point"; } ////ע��ͼ�� if (pFeatureCls.FeatureType == esriFeatureType.esriFTAnnotation) { pFeatureLayer = new AnnotationLayer(); pFeatureLayer.GeometryType = "Annotation"; } pFeatureLayer.CutGeometry =m_cutGeometry; //�ҽӿռ����ݱ� pFeatureLayer.Table = pSet as ITable; pFeatureLayer.GeometryType = sGeometryType; pFeatureLayer.IsCut = m_bCut; pFeatureLayer.FeatureCode = MetaDataFile.GetFeatureCodeByName(pSet.Name); pFeatureLayer.UpdateFieldIndex(); m_FeatureList.Add(pFeatureLayer); pSet = pEnumDataset.Next(); } ///�������Ա���� IEnumDataset pAttriTalbelDataSet= m_pIWorkspace.get_Datasets(esriDatasetType.esriDTTable); IDataset pAttriDataset = pAttriTalbelDataSet.Next(); while (pAttriDataset != null) { TableLayer pAttributeTalbe = new TableLayer(); ///�������ļ���ȡҪ������ Metadata.MetaTable pMetaTable = Metadata.MetaDataFile.MetaTabls[pAttriDataset.Name] as Metadata.MetaTable; if (pMetaTable != null) { pAttributeTalbe.GeometryType = pMetaTable.Type; pAttributeTalbe.Table = pAttriDataset as ITable; pAttributeTalbe.UpdateFieldIndex(); m_FeatureList.Add(pAttributeTalbe); } pAttriDataset = pAttriTalbelDataSet.Next(); } return true; } catch (Exception ex) { LogAPI.WriteErrorLog(ex); return false; } }
/// <summary> /// 保存面图层对应的线图层中的实体到临时数据文件 /// </summary> private void SaveLineNodesToTemp(LineNodeTable pLineNodeTable, string strPolygonTableName) { //暂时不考虑面与面之间的关联 MetaTable metaTable = MetaDataFile.GetMetaTalbleByName(strPolygonTableName); List <string> arrFeatureCode = null; if (metaTable != null) { arrFeatureCode = metaTable.LinkFeatureCode; } if (arrFeatureCode != null && arrFeatureCode.Count > 0) { ESRIData.FeatureLayer featureLayer; int m = 1; for (int i = 0; i < m_nLayerCount; i++) { //获取图层对象 featureLayer = m_dataset.GetFeatureLayerByIndex(i) as ESRIData.FeatureLayer; ESRIData.LineLayer lineLayer = featureLayer as ESRIData.LineLayer; if (lineLayer != null) { if (arrFeatureCode.Contains(lineLayer.FeatureCode) == true) { List <ESRIData.FeatureEntity> arrFeatureEntity = lineLayer.FeatureEntys; if (arrFeatureEntity == null) { return; } for (int j = 0; j < arrFeatureEntity.Count; j++) { FileData.LineNode lineNode = arrFeatureEntity[j].GetEntityNode() as FileData.LineNode; if (lineNode != null) { //拆分线:多点一线拆为两点一线 for (int k = 0; k < lineNode.SegmentNodes.Count; k++) { FileData.BrokenLineNode brokenLineNode = lineNode.SegmentNodes[k] as FileData.BrokenLineNode; if (brokenLineNode != null) { for (int n = 1; n < brokenLineNode.PointInfoNodes.Count; n++) { FileData.PointInfoNodes pointInfoNodes = new FileData.PointInfoNodes(); pointInfoNodes.Add(brokenLineNode.PointInfoNodes[n - 1]); pointInfoNodes.Add(brokenLineNode.PointInfoNodes[n]); FileData.BrokenLineNode brokenLineNodeNew = new FileData.BrokenLineNode(); brokenLineNodeNew.PointInfoNodes = pointInfoNodes; FileData.SegmentNodes segmentNodes = new FileData.SegmentNodes(); segmentNodes.Add(brokenLineNodeNew); FileData.LineNode lineNodeNew = new FileData.LineNode(); lineNodeNew.SegmentNodes = segmentNodes; lineNodeNew.EntityID = lineNode.EntityID; lineNodeNew.FeatureCode = lineNode.FeatureCode; lineNodeNew.LineType = lineNode.LineType; lineNodeNew.Representation = lineNode.Representation; //arrLineNode.Add(lineNodeNew); //写入临时数据文件 //if (m_pTempFile.LineNodeExs != null) //{ pLineNodeTable.AddRow(lineNodeNew); //} if (m % pLineNodeTable.MaxRecordCount == 0) { pLineNodeTable.Save(true); } m++; } } } } } } } } pLineNodeTable.Save(true); } //return arrLineNode; }
/// <summary> /// 从mdb到vct转换时,初始化图层列表 /// </summary> private bool InitialFeatureList() { try { if (m_pIDataset == null) return false; m_FeatureList = new List<TableLayer>(); IEnumDataset pEnumDataset = m_pIDataset.Subsets; IDataset pSet = pEnumDataset.Next(); while (pSet != null) { FeatureLayer pFeatureLayer = null; IFeatureClass pFeatureCls = pSet as IFeatureClass; string sGeometryType = ""; ///从配置文件获取要素类型 Metadata.MetaTable pMetaTable = Metadata.MetaDataFile.MetaTabls[pSet.Name] as Metadata.MetaTable; if (pMetaTable != null) { sGeometryType = pMetaTable.Type; } else { ///如果不属于标准的数据则不处理 pSet = pEnumDataset.Next(); continue; } ///根据要素类型创建vct空间数据节点 esriGeometryType pFeatureType = pFeatureCls.ShapeType; if (pFeatureType == esriGeometryType.esriGeometryLine || pFeatureType == esriGeometryType.esriGeometryPolyline) { ///构造线节点 pFeatureLayer = new LineLayer(); if (sGeometryType == "") sGeometryType = "Line"; } else if (pFeatureType == esriGeometryType.esriGeometryPolygon) { //构造面节点 pFeatureLayer = new PolygonLayer(); if (sGeometryType == "") sGeometryType = "Polygon"; } else if (pFeatureType == esriGeometryType.esriGeometryPoint) { pFeatureLayer = new PointLayer(); if (sGeometryType == "") sGeometryType = "Point"; } ////注记图层 if (pFeatureCls.FeatureType == esriFeatureType.esriFTAnnotation) { pFeatureLayer = new AnnotationLayer(); pFeatureLayer.GeometryType = "Annotation"; } pFeatureLayer.CutGeometry =m_cutGeometry; //挂接空间数据表 pFeatureLayer.Table = pSet as ITable; pFeatureLayer.GeometryType = sGeometryType; pFeatureLayer.IsCut = m_bCut; pFeatureLayer.FeatureCode = MetaDataFile.GetFeatureCodeByName(pSet.Name); pFeatureLayer.UpdateFieldIndex(); m_FeatureList.Add(pFeatureLayer); pSet = pEnumDataset.Next(); } ///处理属性表集合 IEnumDataset pAttriTalbelDataSet= m_pIWorkspace.get_Datasets(esriDatasetType.esriDTTable); IDataset pAttriDataset = pAttriTalbelDataSet.Next(); while (pAttriDataset != null) { TableLayer pAttributeTalbe = new TableLayer(); ///从配置文件获取要素类型 Metadata.MetaTable pMetaTable = Metadata.MetaDataFile.MetaTabls[pAttriDataset.Name] as Metadata.MetaTable; if (pMetaTable != null) { pAttributeTalbe.GeometryType = pMetaTable.Type; pAttributeTalbe.Table = pAttriDataset as ITable; pAttributeTalbe.UpdateFieldIndex(); m_FeatureList.Add(pAttributeTalbe); } pAttriDataset = pAttriTalbelDataSet.Next(); } return true; } catch (Exception ex) { LogAPI.WriteErrorLog(ex); return false; } }
/* /// <summary> /// 处理面实体中引用线对象的标识码 /// </summary> /// <param name="arrLineNode">VCT线实体节点集合</param> /// <param name="arrFeatureCode">关联图层要素编码集合</param> /// <param name="arrLineNodeEx">VCT面实体中的线实体节点集合</param> private void MatchPolygonToLine(ref List<FileData.LineNode> arrLineNode, List<string> arrFeatureCode, ref List<FileData.LineNodeEx> arrLineNodeEx) { if (arrFeatureCode != null && arrFeatureCode.Count > 0) { List<FileData.LineNode> arrLinkLineNode = new List<FileData.LineNode>(); for (int i = 0; i < arrLineNode.Count; i++) { if (arrFeatureCode.Contains(arrLineNode[i].FeatureCode)) { arrLinkLineNode.Add(arrLineNode[i]); } } if (arrLinkLineNode.Count > 0) { //排序 arrLinkLineNode.Sort(); arrLineNodeEx.Sort(); //更新构面线的标识码 int j = 0; for (int i = 0; i < arrLinkLineNode.Count; i++) { for (; j < arrLineNodeEx.Count; j++) { //必须是未找到标识码的 if (arrLineNodeEx[j].EntityID == -1) { if (arrLinkLineNode[i] == arrLineNodeEx[j]) { arrLineNodeEx[j].IsFromLine = true; arrLineNodeEx[j].EntityID = arrLinkLineNode[i].EntityID; } else if (arrLinkLineNode[i] > arrLineNodeEx[j]) { } else { break; } } } } //反向 List<FileData.LineNodeEx> arrLineNodeExReverse = new List<FileData.LineNodeEx>(); for (int i = 0; i < arrLineNodeEx.Count; i++) { //必须是未找到标识码的 if (arrLineNodeEx[i].EntityID == -1) { FileData.LineNodeEx lineNodeEx = arrLineNodeEx[i]; lineNodeEx.Reverse(); arrLineNodeExReverse.Add(lineNodeEx); } } arrLineNodeExReverse.Sort();//反向后排序 j = 0; for (int i = 0; i < arrLinkLineNode.Count; i++) { for (; j < arrLineNodeExReverse.Count; j++) { if (arrLinkLineNode[i] == arrLineNodeExReverse[j]) { arrLineNodeExReverse[j].IsFromLine = true; arrLineNodeExReverse[j].EntityID = arrLinkLineNode[i].EntityID; } else if (arrLinkLineNode[i] > arrLineNodeExReverse[j]) { } else { break; } } } arrLineNodeEx.Clear(); for (int i = 0; i < arrLineNodeExReverse.Count; i++) { //必须是未找到标识码的 if (arrLineNodeExReverse[i].EntityID == -1) { arrLineNodeEx.Add(arrLineNodeExReverse[i]); } } } } return arrLineNodeEx; } */ //public FileData.LineNodeEx CloneLineNodeEx(FileData.LineNodeEx lineNodeExSource) //{ // //m_InitiallyLineNode = this; // try // { // MemoryStream stream = new MemoryStream(); // BinaryFormatter formatter = new BinaryFormatter(); // formatter.Serialize(stream, lineNodeExSource); // stream.Position = 0; // FileData.LineNodeEx lineNodeEx = formatter.Deserialize(stream) as FileData.LineNodeEx; // lineNodeEx.InitiallyLineNode = lineNodeExSource; // return lineNodeEx; // } // catch (Exception ex) // { // LogAPI.WriteErrorLog(ex); // } // /* // try // { // FileData.LineNodeEx lineNodeEx = new FileData.LineNodeEx(); // lineNodeEx.IsReverse = lineNodeExSource.IsReverse; // lineNodeEx.PolygonID = lineNodeExSource.PolygonID; // lineNodeEx.LineIndex = lineNodeExSource.LineIndex; // lineNodeEx.IsFromLine = lineNodeExSource.IsFromLine; // lineNodeEx.LineType = lineNodeExSource.LineType; // lineNodeEx.SegmentNodes = new FileData.SegmentNodes(); // for (int i = 0; i < lineNodeExSource.SegmentNodes.Count; i++) // { // lineNodeEx.SegmentNodes.Add(lineNodeExSource.SegmentNodes[i]); // //BrokenLineNode brokenLineNode1 = this.SegmentNodes[i] as BrokenLineNode; // //if (brokenLineNode1 != null) // //{ // // BrokenLineNode brokenLineNode2 = new BrokenLineNode(); // // brokenLineNode2.PointInfoNodes = new PointInfoNodes(); // // for (int j = 0; j < brokenLineNode1.PointInfoNodes.Count; j++) // // { // // PointInfoNode pointInfoNode = new PointInfoNode(); // // pointInfoNode.X = brokenLineNode1.PointInfoNodes[j].X; // // pointInfoNode.Y = brokenLineNode1.PointInfoNodes[j].Y; // // brokenLineNode2.PointInfoNodes.Add(pointInfoNode); // // } // // lineNodeEx.SegmentNodes.Add(brokenLineNode2); // //} // } // lineNodeEx.EntityID = lineNodeExSource.EntityID; // lineNodeEx.FeatureCode = lineNodeExSource.FeatureCode; // lineNodeEx.Representation = lineNodeExSource.Representation; // lineNodeEx.InitiallyLineNode = lineNodeExSource; // return lineNodeEx; // } // catch (Exception ex) // { // LogAPI.WriteErrorLog(ex); // }*/ // return null; //} /* /// <summary> /// 处理面实体中引用线对象的标识码 /// </summary> /// <param name="arrLineNodeExNew">VCT面实体中的线实体节点集合(需要新建)</param> private void MatchPolygonToLine(ref List<FileData.LineNodeEx> arrLineNodeExNew) { List<FileData.LineNodeEx> arrLineNodeNewClone = new List<VCT.FileData.LineNodeEx>(); for (int i = 0; i < arrLineNodeExNew.Count; i++) { //克隆对象,并反向 FileData.LineNodeEx lineNodeEx = CloneLineNodeEx(arrLineNodeExNew[i]);//.Clone() as FileData.LineNodeEx; if (lineNodeEx != null) { lineNodeEx.Reverse(); arrLineNodeNewClone.Add(lineNodeEx); } } arrLineNodeExNew.Sort(); arrLineNodeNewClone.Sort(); int j = 0; for (int i = 0; i < arrLineNodeExNew.Count; i++) { if (arrLineNodeExNew[i].EntityID == -1) { //需要创建要素编码 arrLineNodeExNew[i].EntityID = this.m_nNewEntityID; ////未做合并处理 //m_VCTFile.WritePolygonLineNode(arrLineNodeExNew[i]); } for (; j < arrLineNodeNewClone.Count; j++) { if (arrLineNodeNewClone[j].InitiallyLineNode.EntityID == -1) { if (arrLineNodeExNew[i] == arrLineNodeNewClone[j]) { arrLineNodeNewClone[j].InitiallyLineNode.EntityID = arrLineNodeExNew[i].EntityID; arrLineNodeNewClone[j].InitiallyLineNode.Reverse(); //arrLineNodeNewClone[j].InitiallyLineNode.IsReverse = arrLineNodeNewClone[j].IsReverse; arrLineNodeNewClone[j].InitiallyLineNode.OtherPolygonLineNode = arrLineNodeExNew[i]; arrLineNodeExNew[i].OtherPolygonLineNode = arrLineNodeNewClone[j].InitiallyLineNode; } if (arrLineNodeExNew[i] > arrLineNodeNewClone[j]) { } else { break; } } } } //for (int i = 0; i < arrLineNodeExNew.Count; i++) //{ // if ((arrLineNodeExNew[i].InitiallyLineNode == null && arrLineNodeExNew[i].EntityID == -1) || //非克隆对象 // (arrLineNodeExNew[i].InitiallyLineNode != null && arrLineNodeExNew[i].InitiallyLineNode.EntityID == -1)) //克隆对象 // { // if (i > 0) // { // if (arrLineNodeExNew[i] == arrLineNodeExNew[i - 1]) // { // arrLineNodeExNew[i].EntityID = arrLineNodeExNew[i - 1].EntityID; // if (arrLineNodeExNew[i].InitiallyLineNode != null) // { // //arrLineNodeExNew[i]是克隆对象,需要更新原始对象的标识码和方向标识 // arrLineNodeExNew[i].InitiallyLineNode.EntityID = arrLineNodeExNew[i].EntityID; // arrLineNodeExNew[i].InitiallyLineNode.IsReverse = arrLineNodeExNew[i].IsReverse; // } // continue; // } // } // //需要创建要素编码 // arrLineNodeExNew[i].EntityID = this.NewEntityID; // if (arrLineNodeExNew[i].InitiallyLineNode != null) // { // //arrLineNodeExNew[i]是克隆对象,需要更新原始对象的标识码和方向标识 // arrLineNodeExNew[i].InitiallyLineNode.EntityID = arrLineNodeExNew[i].EntityID; // arrLineNodeExNew[i].InitiallyLineNode.IsReverse = arrLineNodeExNew[i].IsReverse; // } // m_VCTFile.WritePolygonLineNode(arrLineNodeExNew[i]); // } //} } */ ///// <summary> ///// 处理面实体中引用线对象的标识码 ///// </summary> ///// <param name="arrLineNode">VCT线实体节点集合</param> //private void WritePolygonLineNodes(ref List<FileData.LineNodeEx> arrLineNode) //{ // ////按标识码、在面的边界线集合中的索引排序 // FileData.LineNodeExComparer lineNodeExComparer = new FileData.LineNodeExComparer(); // arrLineNode.Sort(lineNodeExComparer); // FileData.LineNodeEx lineNode = null; // for (int i = 0; i < arrLineNode.Count; i++) // { // if (lineNode == null) // { // lineNode = arrLineNode[i]; // } // else // { // if (arrLineNode[i].EntityID == lineNode.EntityID) // { // lineNode.SegmentNodes.AddRange(arrLineNode[i].SegmentNodes); // } // else // { // m_VCTFile.WritePolygonLineNode(lineNode); // lineNode = arrLineNode[i]; // } // if (i == arrLineNode.Count - 1) // { // m_VCTFile.WritePolygonLineNode(lineNode); // } // } // } //} /// <summary> /// 执行转换 /// </summary> public EnumMDB2VCTExchangeInfo Exchange() { ///指示当前转换的执行位置 int nExcutePosition = 0; ///1.表结构 2.点 3.线 4.面 try { //获取PGDB数据集 m_dataset = m_MDBFile.GetDataset(); if (m_dataset != null) { //获取当前数据的最大实体标识码 this.m_nNewEntityID = m_dataset.GetMaxEntityID() + 1; //获取VCT头节点 ESRIData.Projection projection = m_dataset.GetProjection(); if (projection != null) { FileData.HeadNode headNode = projection.GetHeadNode(); ///生成头文件错误 if (headNode == null) { return EnumMDB2VCTExchangeInfo.HEADFILEERROR; } //1、写入VCT头节点 m_VCTFile.WriteHeadNode(headNode); //获取图层集合 ESRIData.TableLayer tableLayer; m_nLayerCount = m_dataset.GetLayerCount(); List<FileData.FeatureCodeNode> arrFeatureCodeNode = new List<FileData.FeatureCodeNode>(); List<FileData.TableStructureNode> arrTableStructureNode = new List<FileData.TableStructureNode>(); nExcutePosition++; for (int i = 0; i < m_nLayerCount; i++) { //获取图层对象 tableLayer = m_dataset.GetFeatureLayerByIndex(i); //获取图层要素参数信息 FileData.FeatureCodeNode featureCodeNode = tableLayer.GetFeatureCodeNode(); arrFeatureCodeNode.Add(featureCodeNode); //获取图层表结构信息 FileData.TableStructureNode tableStructureNode = tableLayer.StructureNode; arrTableStructureNode.Add(tableStructureNode); } //2、写入VCT要素参数节点 m_VCTFile.WriteFeatureCodeNodes(arrFeatureCodeNode); //3、写入VCT表结构节点 m_VCTFile.WriteTableStructureNode(arrTableStructureNode); ///释放不在使用的对象,减少内存使用率 add by 曾平 //m_VCTFile.Flush(); arrFeatureCodeNode.Clear(); arrTableStructureNode.Clear(); nExcutePosition++; //4、写入点实体节点 for (int i = 0; i < m_nLayerCount; i++) { //获取图层对象 tableLayer = m_dataset.GetFeatureLayerByIndex(i); ESRIData.PointLayer pointLayer = tableLayer as ESRIData.PointLayer; if (pointLayer != null) { if (pointLayer.FeatureEntys != null) { for (int j = 0; j < pointLayer.FeatureEntys.Count; j++) { m_VCTFile.WritePointNode(pointLayer.FeatureEntys[j].GetEntityNode() as FileData.PointNode); } } } } nExcutePosition++; ////5、写入线实体节点 //List<FileData.LineNode> arrLineNode = new List<FileData.LineNode>(); for (int i = 0; i < m_nLayerCount; i++) { //获取图层对象 tableLayer = m_dataset.GetFeatureLayerByIndex(i); ESRIData.LineLayer lineLayer = tableLayer as ESRIData.LineLayer; if (lineLayer != null) { if (lineLayer.FeatureEntys != null) { for (int j = 0; j < lineLayer.FeatureEntys.Count; j++) { FileData.LineNode lineNode = lineLayer.FeatureEntys[j].GetEntityNode() as FileData.LineNode; if (lineNode != null) { m_VCTFile.WriteLineNode(lineNode); } } } } } ////处理面实体中引用线对象的标识码 ////List<FileData.PolygonNode> arrPolygonNode = MatchPolygonToLine(dataset, ref arrLineNode); ////6、写入面实体节点 nExcutePosition++; WritePolygonNodes pWritePolygonNodes = new WritePolygonNodes(m_dataset, this.m_pTempFile, this.m_VCTFile, this.m_nNewEntityID); //pWritePolygonNodes.WriteCommplete += new WriteCommpleteEventHandler(WritePolygonNodes_WriteCommplete); pWritePolygonNodes.Write(); WritePolygonNodes_WriteCommplete(true); return EnumMDB2VCTExchangeInfo.EXCHANGESUCCESS; } else { return EnumMDB2VCTExchangeInfo.PROJCTIONERROR; } } else { return EnumMDB2VCTExchangeInfo.DATASETERROR; } } catch(Exception ex) { LogAPI.WriteErrorLog(ex); EnumMDB2VCTExchangeInfo pInfo = EnumMDB2VCTExchangeInfo.EXCHANGUNKNOWEERROR; if (nExcutePosition == 1) pInfo = EnumMDB2VCTExchangeInfo.FEATUREINFOERROR; else if (nExcutePosition == 2) pInfo = EnumMDB2VCTExchangeInfo.POINTERROR; else if (nExcutePosition == 3) pInfo = EnumMDB2VCTExchangeInfo.LINEERROR; else if (nExcutePosition == 4) pInfo = EnumMDB2VCTExchangeInfo.PLOYGONERROR; return pInfo; } }
/// <summary> /// �����ռ�ͼ�� /// </summary> /// <param name="tableStructureNode">VCT��ṹ�ڵ�</param> /// <param name="featureCodeNode">VCTҪ�ر���ڵ�</param> private FeatureLayer CreateFeatureLayer(TableStructureNode tableStructureNode, FeatureCodeNode featureCodeNode) { try { FeatureLayer featureLayer = null; ///��ȡҪ�ؼ� IFeatureDataset featureDataset = m_pIDataset as IFeatureDataset; //�������ļ���ȡͼ������ string sGeometryType = ""; Metadata.MetaTable pMetaTalbe = Metadata.MetaDataFile.MetaTabls[tableStructureNode.TableName] as Metadata.MetaTable; if (pMetaTalbe != null) { sGeometryType = Metadata.MetaDataFile.GraphConfig.GetGraphTypeMark(pMetaTalbe.Type); } else { LogAPI.WriteLog("δ�ܻ�ȡ��" + tableStructureNode.TableName + "����ͼ�����ͣ�"); return null; } ///������ʵ�� if (sGeometryType == "Point") { featureLayer = new PointLayer(); } ///������ʵ�� else if (sGeometryType == "Line") { featureLayer = new LineLayer(); } ///������ʵ�� else if (sGeometryType == "Polygon") { featureLayer = new PolygonLayer(); } else if (sGeometryType == "Annotation") { featureLayer = new AnnotationLayer(); } if (featureLayer != null) { featureLayer.StructureNode = tableStructureNode; IFeatureClass pFcls = CreateFeatureClass(featureDataset, tableStructureNode, featureCodeNode); featureLayer.Table = pFcls as ITable; featureLayer.UpdateFieldIndex(); return featureLayer; } } catch(Exception ex) { LogAPI.WriteErrorLog(ex); } return null; }