向SDE中写入栅格和矢量数据类

说明：本类使用了上一篇文章中的打开sdeworkspace的类库。

本类是实现了向SDE中写入栅格和矢量数据，在SDE for Sql2005+ae9.3上测试通过。

使用时注意里面有一些向数据库中写入图层信息的内容

源代码如下：

/********************************************************************
filename: WriteToSDE.cs
created: 2009/12/20
author: 张烨
purpose: 向空间数据库写入矢量或者栅格数据
*********************************************************************/
using System;
using System.Collections.Generic;
using System.Text;
using ESRI.ArcGIS.Geodatabase;
using ESRI.ArcGIS.DataSourcesRaster;
using ESRI.ArcGIS.Geometry;

namespace RadioAnalysisGIS.DataToSDE
{
/// <summary>
/// 写入SDE
/// </summary>
/// <history>
/// [张烨] 2009/12/20 创建
/// [张烨] 2009/12/25 编辑，向属性数据库中添加空间数据库更新说明
///</history>
class WriteToSDE
{

#region 全局变量，构造函数
protected SDEConnectParas paras;
private FileWorkSpace pFileWorkSpace;
public WriteToSDE(SDEConnectParas para)
{
paras = para;
pFileWorkSpace = new FileWorkSpace();
}

#endregion

#region 初始化SDE连接参数
private SDEConnectPara InitPara()
{
paras.ReadFromFile();
string Server = "jiarui-dfe6951b";
string Instance = "5152";
string User = "gis";
string Pass = "gis";
string Database = "gisstations";
string Version = "SDE_DEFAULT";
paras.GetSDEParameters(out Server, out Instance, out User, out Pass, out Database, out Version);
//从paras中获取SDE连接参数
SDEConnectPara para = new SDEConnectPara();
para.Server = Server;
para.Instance = Instance;
para.User = User;
para.Password = Pass;
para.Database = Database;
para.Version = Version;
return para;
}
#endregion

#region 连接到工作空间
public ConnectRasterWorkSpaceDef ConnToSdeRasterDef()
{
SDEConnectPara para = InitPara();
ConnectRasterWorkSpaceDef ConnRasterDef = new ConnectRasterWorkSpaceDef(para);
return ConnRasterDef;
}

public ConnectFeatureWorkSpaceDef ConnToSdeFeatureDef()
{
SDEConnectPara para = InitPara();
ConnectFeatureWorkSpaceDef ConnFeatureDef = new ConnectFeatureWorkSpaceDef(para);
return ConnFeatureDef;
}
#endregion

#region 读取空间矢量和栅格数据
public IRasterDataset GetRasterDataset(ConnectRasterWorkSpaceDef ConnDef, string RasterName)
{
ConnectRasterWorkSpaceGet pWorkSpaceGet = new ConnectRasterWorkSpaceGet(ConnDef);
IRasterWorkspaceEx pWorkSpace = pWorkSpaceGet.GetSDEWorkspace();
if (pWorkSpace == null) return null;
try
{
return pWorkSpace.OpenRasterDataset(RasterName);
}
catch
{
return null;
}
}
public IFeatureClass GetFeatureClass(ConnectFeatureWorkSpaceDef ConnDef, string FeatureName)
{
ConnectFeatureWorkSpaceGet pWorkSpaceGet = new ConnectFeatureWorkSpaceGet(ConnDef);
IFeatureWorkspace pWorkSpace = pWorkSpaceGet.GetSDEWorkspace();
if (pWorkSpace == null) return null;
try
{
return pWorkSpace.OpenFeatureClass(FeatureName);
}
catch
{
return null;
}
}
#endregion

#region sde处理栅格
public bool WriteRasterToSDE(Guid MapGuid,ConnectRasterWorkSpaceDef ConnDef, string filePath)
{
ConnectRasterWorkSpaceGet pWorkSpaceGet = new ConnectRasterWorkSpaceGet(ConnDef);
IRasterWorkspaceEx pWorkSpace = pWorkSpaceGet.GetSDEWorkspace();
//pWorkSpace.SaveAsRasterDataset("fasdf",pDataSet.CreateDefaultRaster(),null,"",null,null);
string LayerStoreName=CopyRasterToSSDE(filePath, pWorkSpace);

#region 写入数据库图层信息
WriteToDB wtd = new WriteToDB();
FilePath file = new FilePath(filePath);
wtd.WriteLayerInfo(file.GetFileName(), MapGuid, 1, LayerStoreName);
#endregion

return true;
}
public string CopyRasterToSSDE(string filePath, IRasterWorkspaceEx pWorkSpace)
{
FilePath file = new FilePath(filePath);
IRasterWorkspace2 pRW = pFileWorkSpace.OpenRasterWorkspace(file.GetDir());
IRasterDataset pRds = pRW.OpenRasterDataset(file.GetFileName());

IRasterProps pRasterProps = (IRasterProps)pRds.CreateDefaultRaster();
IRasterStorageDef pRasterStorageDef = new RasterStorageDefClass();

IRasterDef pRasterDef = new RasterDefClass();
pRasterDef.SpatialReference = pRasterProps.SpatialReference;
IGeometryDef pGeoDef = new GeometryDefClass();
IGeometryDefEdit pGeoDefEdit = pGeoDef as IGeometryDefEdit;
pGeoDefEdit.GeometryType_2 = esriGeometryType.esriGeometryPolygon;
pGeoDefEdit.AvgNumPoints_2 = 4;
pGeoDefEdit.GridCount_2 = 1;
pGeoDefEdit.set_GridSize(0, 1000);
pGeoDefEdit.SpatialReference_2 = pRasterProps.SpatialReference;
DateTime dt = DateTime.Now;
string timestr = "sde" + "_" + dt.Year.ToString() + dt.Month.ToString() + dt.Day.ToString() + "_" + dt.Hour + dt.Minute + dt.Second;
IRasterDataset pRasterDataset = pWorkSpace.SaveAsRasterDataset(timestr, pRds.CreateDefaultRaster(), pRasterStorageDef, "", pRasterDef, pGeoDef);
return timestr;
}
public bool CreateRasterToSSDE(IRasterDataset pRDs, IRasterWorkspaceEx pWorkSpace)
{
IRasterProps pRasterProps = (IRasterProps)pRDs.CreateDefaultRaster();
IRasterStorageDef pRasterStorageDef = new RasterStorageDefClass();
pRasterStorageDef.CompressionType = esriRasterCompressionType.esriRasterCompressionJPEG2000;
pRasterStorageDef.CompressionQuality = 50;
pRasterStorageDef.PyramidLevel = 2;
pRasterStorageDef.PyramidResampleType = rstResamplingTypes.RSP_BilinearInterpolation;
pRasterStorageDef.TileHeight = 128;
pRasterStorageDef.TileWidth = 128;
IRasterDef pRasterDef = new RasterDefClass();
pRasterDef.Description = "rasterdataset";
pRasterDef.SpatialReference = pRasterProps.SpatialReference;
IGeometryDef pGeoDef = new GeometryDefClass();
IGeometryDefEdit pGeoDefEdit = pGeoDef as IGeometryDefEdit;
pGeoDefEdit.GeometryType_2 = esriGeometryType.esriGeometryPolygon;
pGeoDefEdit.AvgNumPoints_2 = 4;
pGeoDefEdit.GridCount_2 = 1;
pGeoDefEdit.set_GridSize(0, 1000);
pGeoDefEdit.SpatialReference_2 = pRasterProps.SpatialReference;

//使用CreateRasterDataset创建一个新层可以
IRasterDataset pRasterDataset = pWorkSpace.CreateRasterDataset("zzy", 3, rstPixelType.PT_UCHAR, pRasterStorageDef, "", pRasterDef, pGeoDef);
pRasterDataset = pRDs;
return true;

}
#endregion

#region sde处理feature
public bool AddFeatureToSDE(Guid MapGuid,ConnectFeatureWorkSpaceDef ConnDef, IFeatureClass pFC, string LayerName)
{
ConnectFeatureWorkSpaceGet pWorkSpaceGet = new ConnectFeatureWorkSpaceGet(ConnDef);
IFeatureWorkspace pWorkSpace = pWorkSpaceGet.GetSDEWorkspace();
//pWorkSpace.SaveAsRasterDataset("fasdf",pDataSet.CreateDefaultRaster(),null,"",null,null);
string LayerStoreName=CopyFeatureToSSDE(pFC, pWorkSpace,LayerName);

#region 写入数据库图层信息
WriteToDB wtd = new WriteToDB();
wtd.WriteLayerInfo(LayerName, MapGuid, 0, LayerStoreName);
#endregion

return true;
}
public bool AddFeatureToSDE(ConnectFeatureWorkSpaceDef ConnDef, string filePath)
{
try
{
FilePath file = new FilePath(filePath);
IFeatureWorkspace pFW = pFileWorkSpace.OpenFeatureWorkspace(file.GetDir());
IFeatureClass pFC = pFW.OpenFeatureClass(file.GetFileName());
ConnectFeatureWorkSpaceGet pWorkSpaceGet = new ConnectFeatureWorkSpaceGet(ConnDef);
IFeatureWorkspace pWorkSpace = pWorkSpaceGet.GetSDEWorkspace();
CopyFeatureToSSDE(pFC, pWorkSpace,file.GetFileName());
}
catch
{
return false;
}
return true;
}
public string CopyFeatureToSSDE(IFeatureClass pFC, IFeatureWorkspace pWorkSpace, string LayerName)
{
IDataset pDataset = pFC as IDataset;
//IFeatureDataset pFD = pWorkSpace.OpenFeatureDataset("test.DBO.ContourDataSet");
DateTime dt = DateTime.Now;
string timestr = "contour" + dt.Year.ToString() + dt.Month.ToString() + dt.Day.ToString() + "_" + dt.Hour + dt.Minute + dt.Second;
IFeatureDataConverter_ConvertFeatureClass(pDataset.Workspace as IWorkspace, pWorkSpace as IWorkspace, LayerName, timestr);
return timestr;
}

public void IFeatureDataConverter_ConvertFeatureClass(IWorkspace sourceWorkspace, IWorkspace targetWorkspace, string nameOfSourceFeatureClass, string nameOfTargetFeatureClass)
{
//create source workspace name
IDataset sourceWorkspaceDataset = (IDataset)sourceWorkspace;
IWorkspaceName sourceWorkspaceName = (IWorkspaceName)sourceWorkspaceDataset.FullName;
//create source dataset name
IFeatureClassName sourceFeatureClassName = new FeatureClassNameClass();
IDatasetName sourceDatasetName = (IDatasetName)sourceFeatureClassName;
sourceDatasetName.WorkspaceName = sourceWorkspaceName;
sourceDatasetName.Name = nameOfSourceFeatureClass;
//create target workspace name
IDataset targetWorkspaceDataset = (IDataset)targetWorkspace;
IWorkspaceName targetWorkspaceName = (IWorkspaceName)targetWorkspaceDataset.FullName;
//create target dataset name
IFeatureClassName targetFeatureClassName = new FeatureClassNameClass();
IDatasetName targetDatasetName = (IDatasetName)targetFeatureClassName;
targetDatasetName.WorkspaceName = targetWorkspaceName;
targetDatasetName.Name = nameOfTargetFeatureClass;
//Open input Featureclass to get field definitions.
ESRI.ArcGIS.esriSystem.IName sourceName = (ESRI.ArcGIS.esriSystem.IName)sourceFeatureClassName;
IFeatureClass sourceFeatureClass = (IFeatureClass)sourceName.Open();
//Validate the field names because you are converting between different workspace types.
IFieldChecker fieldChecker = new FieldCheckerClass();
IFields targetFeatureClassFields;
IFields sourceFeatureClassFields = sourceFeatureClass.Fields;
IEnumFieldError enumFieldError;
// Most importantly set the input and validate workspaces!
fieldChecker.InputWorkspace = sourceWorkspace;
fieldChecker.ValidateWorkspace = targetWorkspace;
fieldChecker.Validate(sourceFeatureClassFields, out enumFieldError, out targetFeatureClassFields);
// Loop through the output fields to find the geomerty field
IField geometryField;
for (int i = 0; i < targetFeatureClassFields.FieldCount; i++)
{
if (targetFeatureClassFields.get_Field(i).Type == esriFieldType.esriFieldTypeGeometry)
{
geometryField = targetFeatureClassFields.get_Field(i);
// Get the geometry field's geometry defenition
IGeometryDef geometryDef = geometryField.GeometryDef;
//Give the geometry definition a spatial index grid count and grid size
IGeometryDefEdit targetFCGeoDefEdit = (IGeometryDefEdit)geometryDef;
targetFCGeoDefEdit.GridCount_2 = 1;
targetFCGeoDefEdit.set_GridSize(0, 0);
//Allow ArcGIS to determine a valid grid size for the data loaded
targetFCGeoDefEdit.SpatialReference_2 = geometryField.GeometryDef.SpatialReference;
// we want to convert all of the features
IQueryFilter queryFilter = new QueryFilterClass();
queryFilter.WhereClause = "";
// Load the feature class
IFeatureDataConverter fctofc = new FeatureDataConverterClass();
IEnumInvalidObject enumErrors = fctofc.ConvertFeatureClass(sourceFeatureClassName, queryFilter, null, targetFeatureClassName, geometryDef, targetFeatureClassFields, "", 1000, 0);
break;
}
}
}
#endregion

}
}