public static void LoadGeoData(AxMapControl axMapControl1, AxMapControl axMapControl2, string strFileN)
{
string strFExtenN = System.IO.Path.GetExtension(strFileN);
switch (strFExtenN)
{
case ".shp":
{
string strPath = System.IO.Path.GetDirectoryName(strFileN);
string strFile = System.IO.Path.GetFileNameWithoutExtension(strFileN);
axMapControl1.AddShapeFile(strPath, strFile);
axMapControl2.ClearLayers();
axMapControl2.AddShapeFile(strPath, strFile);
axMapControl2.Extent = axMapControl2.FullExtent;
break;
}
case ".bmp":
case ".tif":
case ".jpg":
case ".img":
{
IWorkspaceFactory pWSF = new RasterWorkspaceFactoryClass();
string pathName = System.IO.Path.GetDirectoryName(strFileN);
string fileName = System.IO.Path.GetFileName(strFileN);
IWorkspace pWS = pWSF.OpenFromFile(pathName, 0);
IRasterWorkspace pRWS = pWS as IRasterWorkspace;
IRasterDataset pRasterDataSet = pRWS.OpenRasterDataset(fileName);
IRasterPyramid pRasPyramid = pRasterDataSet as IRasterPyramid;
if (pRasPyramid != null)
{
if (!(pRasPyramid.Present))
{
pRasPyramid.Create();
}
}
IRaster pRaster = pRasterDataSet.CreateDefaultRaster();
IRasterLayer pRasterLayer = new RasterLayerClass();
pRasterLayer.CreateFromRaster(pRaster);
ILayer pLayer = pRasterLayer as ILayer;
axMapControl1.AddLayer(pLayer, 0);
axMapControl2.ClearLayers();
axMapControl2.AddLayer(pLayer, 0);
axMapControl2.Extent = axMapControl2.FullExtent;
break;
}
case ".mxd":
{
if (axMapControl1.CheckMxFile(strFExtenN))
{
axMapControl1.LoadMxFile(strFExtenN);
}
else
MessageBox.Show("所选择的文件不是Mxd文件！", "提示信息");
break;
}
default:
break;
}
}
/// <summary>
/// 根据指定的影像路径显示影像
/// </summary>
/// <param name="imgPath">影像路径</param>
public void DisplayImg(string imgPath)
{
if (File.Exists(imgPath))
{
//获取文件路径和文件名
string imgDirectory = Path.GetDirectoryName(imgPath);
string imgFileName = Path.GetFileName(imgPath);
//
IWorkspaceFactory pWorkspaceFactory = new RasterWorkspaceFactoryClass();
IRasterWorkspace pRasterWorkspace = pWorkspaceFactory.OpenFromFile(imgDirectory, 0) as IRasterWorkspace;
if (pRasterWorkspace != null)
{
IRasterDataset pRasterDataset = pRasterWorkspace.OpenRasterDataset(imgFileName);
IRasterPyramid3 prPyramid3 = pRasterDataset as IRasterPyramid3;
if (prPyramid3 != null && !prPyramid3.Present)
{
//进度条怎么写
MessageBox.Show("正在建立金字塔！");
prPyramid3.BuildPyramid(5, rstResamplingTypes.RSP_BilinearInterpolation);
MessageBox.Show("完成建立金字塔！");
}
IRasterLayer rasterLayer = new RasterLayerClass();
rasterLayer.CreateFromDataset(pRasterDataset);
rasterLayer.Name = Path.GetFileNameWithoutExtension(imgPath);
this._pMap.AddLayer(rasterLayer);
}
}
else
{
MessageBox.Show("指定的影像路径" + imgPath + "无效！");
}
}
private void frmSelectBand_Load(object sender, EventArgs e)
{
this.comboBox1.Items.Clear();
IDataLayer2 dataLayer = m_rasLayer as IDataLayer2;
string dataSource = dataLayer.DataSourceName.NameString;
if (dataSource.Contains("RASTER")) //�ļ�
{
string path = dataSource.Substring(dataSource.IndexOf('=') + 1, dataSource.IndexOf(';') - dataSource.IndexOf('=') - 2);
string name = dataSource.Substring(dataSource.LastIndexOf('=') + 1, dataSource.LastIndexOf(';') - dataSource.LastIndexOf('=') - 1);
IWorkspaceFactory m_workspaceFactory = new RasterWorkspaceFactoryClass();
IRasterWorkspace rasterWorkspce = m_workspaceFactory.OpenFromFile(path.Trim(), 0) as IRasterWorkspace;
IRasterDataset rasDataset = rasterWorkspce.OpenRasterDataset(name.Trim());
m_rc = rasDataset as IRasterBandCollection;
for (int i = 0; i < m_rc.Count; i++)
{
this.comboBox1.Items.Add(m_rc.Item(i).Bandname.ToString());
}
}
else
{
string name = dataSource;
IRasterWorkspaceEx rasterWorkspce = m_workSpace as IRasterWorkspaceEx;
IRasterDataset rasDataset = rasterWorkspce.OpenRasterDataset(name);
m_rc = rasDataset as IRasterBandCollection;
for (int i = 0; i < m_rc.Count; i++)
{
this.comboBox1.Items.Add(m_rc.Item(i).Bandname.ToString());
}
}
}
/// <summary>
/// 加载栅格图层
/// </summary>
/// <param name="shpFile"></param>
public IRasterLayer LoadDem(string shpFile)
{
string strFullPath = shpFile;
if (strFullPath == "")
{
return(null);
}
int Index = strFullPath.LastIndexOf("\\");
string filePath = strFullPath.Substring(0, Index);
string fileName = strFullPath.Substring(Index + 1);
IWorkspaceFactory pWSFact = new RasterWorkspaceFactoryClass();
IWorkspace pWS = pWSFact.OpenFromFile(filePath, 0);
IRasterWorkspace pRasterWorkspace1 = pWS as IRasterWorkspace;
IRasterLayer pRasterLayer = new RasterLayerClass();
try
{
IRasterDataset pRasterDataset = (IRasterDataset)pRasterWorkspace1.OpenRasterDataset(fileName);
pRasterLayer.CreateFromDataset(pRasterDataset);
ILayer pLayer = pRasterLayer as ILayer;
pLayer.Name = pRasterLayer.Name;
return(pRasterLayer);
}
catch (Exception err)
{
throw (err);
}
}
/// <summary>
/// 图层切割栅格数据
/// </summary>
/// <param name="rasterLayer">栅格数据图层</param>
/// <param name="clipLayer">切割适量图层</param>
/// <param name="outputFullPath">切割栅格完整路径</param>
public void ClipRasterByLayer(ILayer rasterLayer, ILayer clipLayer, string outputFullPath)
{
string rasterPath = GetLayerPath(rasterLayer);
string clipPath = GetLayerPath(clipLayer);
ExtractByMask clipTool = new ExtractByMask();
clipTool.in_raster = rasterPath;
clipTool.in_mask_data = clipPath;
clipTool.out_raster = outputFullPath;
Geoprocessor processor = new Geoprocessor();
IGPProcess process = null;
processor.OverwriteOutput = true;
process = clipTool;
processor.Validate(process, true);
processor.Execute(process, null);
DirectoryInfo di = new DirectoryInfo(outputFullPath);
string rasterDir = di.Parent.FullName;
string name = di.Name;
IWorkspaceFactory rasterWorkspaceFactory = new RasterWorkspaceFactoryClass();
IRasterWorkspace rasterWorkspace = rasterWorkspaceFactory.OpenFromFile(rasterDir, 0) as IRasterWorkspace;
IRasterDataset rasterDataset = rasterWorkspace.OpenRasterDataset(name);
IRasterLayer rasterLyr = new RasterLayerClass();
rasterLyr.CreateFromDataset(rasterDataset);
m_mapControl.Map.AddLayer(rasterLyr as ILayer);
}
/// <summary>
/// 计算DEM坡向
/// </summary>
/// <param name="rasterLayer">输入DEM图层</param>
/// <param name="outputFullPath">输出坡度图路径，类型为IMAGE，文件名为img</param>
public void CreateRasterAspect(ILayer rasterLayer, string outputFullPath)
{
if (File.Exists(outputFullPath))
{
MessageBox.Show(outputFullPath + "已经存在，请重命名");
return;
}
IRasterLayer rasterLyr = rasterLayer as IRasterLayer;
IRaster raster = rasterLyr.Raster;
RasterSurfaceOpClass rasterOpCls = new RasterSurfaceOpClass();
IGeoDataset geoDataset = raster as IGeoDataset;
IGeoDataset outGeodataset = rasterOpCls.Aspect(geoDataset);
IRaster pRaster = outGeodataset as IRaster;
FileInfo fi = new FileInfo(outputFullPath);
string fileDir = fi.Directory.FullName;
string name = fi.Name;
if (!Directory.Exists(fileDir))
Directory.CreateDirectory(fileDir);
IWorkspaceFactory pWSF = new RasterWorkspaceFactoryClass();
IWorkspace pWS = pWSF.OpenFromFile(fileDir, 0);
ISaveAs pSaveAs = pRaster as ISaveAs;
pSaveAs.SaveAs(name, pWS, "IMAGINE Image");
IRasterLayer rasterLyr2 = new RasterLayerClass();
rasterLyr2.CreateFromRaster(pRaster);
rasterLyr2.Name = name;
m_mapControl.Map.AddLayer(rasterLyr2 as ILayer);
}
//#######################以下函数可配合使用########################
//**************************Load Raster Begin****************************
//函数编号：RasterLoad-01
//函数名：DirToMosaic
//函数功能：把文件夹中的Raster文件合并到新的Raster文件中去
//参数：sDir：栅格文件夹
// pDataset：最后合并的RasterDataset
//备注：pDataset可以使Geodataset中的参数，如果不存在利用函数创建
public void DirToMosaic(string sDir, IRasterDataset pDataset)
{
//load all raster datasets in the input directory to the raster dataset
//the geodatabase raster dataset has to exist,
//if not create it first with proper storage parameters.
IWorkspaceFactory pWsFact = new RasterWorkspaceFactoryClass();;
IWorkspace pFileWs = pWsFact.OpenFromFile(sDir, 0);
IRasterDatasetEdit pSDEDs = pDataset as IRasterDatasetEdit;
IRasterDataset2 pRasterDs;
// load raster datasets from the dir
IEnumDataset pEunmDatasets = pFileWs.get_Datasets(esriDatasetType.esriDTRasterDataset);
pEunmDatasets.Reset();
pRasterDs = pEunmDatasets.Next() as IRasterDataset2;
while (!(pRasterDs == null))
{
//!!!pRasterDs.CompleteName;
pSDEDs.Mosaic(pRasterDs.CreateFullRaster(), 0.5);
//!!!注意IRasterDataset2::CreateFullRaster()方法可以简单实现从RasterDataset到Raster的转换
pRasterDs = pEunmDatasets.Next() as IRasterDataset2;
}
//cleanup
pEunmDatasets = null;
pRasterDs = null;
pWsFact = null;
pSDEDs = null;
pFileWs = null;
}
private void ConvertRasterToRsDataset(String sPath, ref IRaster pRaster, String sOutName)
{
try
{
IWorkspaceFactory pWSF = new RasterWorkspaceFactoryClass();
if (pWSF.IsWorkspace(sPath) == false)
{
return;
}
IWorkspace pRWS = pWSF.OpenFromFile(sPath, 0);
if (System.IO.File.Exists(sPath + "\\" + sOutName + ".img") == true)
{
System.IO.File.Delete(sPath + "\\" + sOutName + ".img");
}
IRasterBandCollection pRasBandCol = (IRasterBandCollection)pRaster;
IDataset pDS = pRasBandCol.SaveAs(sOutName + ".img", pRWS, "IMAGINE Image");
ITemporaryDataset pRsGeo = (ITemporaryDataset)pDS;
if (pRsGeo.IsTemporary())
{
pRsGeo.MakePermanent();
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
private IInterpolationOp SetRasterInterpolationAnalysisEnv(String rasterpath, double cellsize, IFeatureLayer pFeatLayer)
{
object Missing = Type.Missing;
IWorkspaceFactory pWSF;
pWSF = new RasterWorkspaceFactoryClass();
IWorkspace pWorkspace = pWSF.OpenFromFile(rasterpath, 0);
IInterpolationOp pInterpolationOp = new RasterInterpolationOpClass();
IRasterAnalysisEnvironment pRsEnv = (IRasterAnalysisEnvironment)pInterpolationOp;
pRsEnv.OutWorkspace = pWorkspace;
//装箱操作
object objCellSize = cellsize;
pRsEnv.SetCellSize(esriRasterEnvSettingEnum.esriRasterEnvValue, ref objCellSize);
IEnvelope pEnv = new EnvelopeClass();
pEnv.XMin = pFeatLayer.AreaOfInterest.XMin;
pEnv.XMax = pFeatLayer.AreaOfInterest.XMax;
pEnv.YMin = pFeatLayer.AreaOfInterest.YMin;
pEnv.YMax = pFeatLayer.AreaOfInterest.YMax;
object objExtent = pEnv;
pRsEnv.SetExtent(esriRasterEnvSettingEnum.esriRasterEnvValue, ref objExtent, ref Missing);
return(pInterpolationOp);
}
/// <summary>
/// 转换
/// </summary>
/// <param name="pFeatureClass">要素类</param>
/// <param name="fieldName">栅格采用的字段</param>
/// <param name="rasterWorkSpace">输出栅格的工作空间</param>
/// <param name="newRasterName">新的栅格名称</param>
public void Convert(IFeatureClass pFeatureClass,
string fieldName,
string rasterWorkSpace,
string newRasterName)
{
FileHelper.DeleteFile(rasterWorkSpace, newRasterName, ".tif", ".tfw",".tif.aux");
IFeatureClassDescriptor featureClassDescriptor = new FeatureClassDescriptorClass();
featureClassDescriptor.Create(pFeatureClass, null, fieldName);
IGeoDataset geoDataset = (IGeoDataset)featureClassDescriptor;
IWorkspaceFactory workspaceFactory = new RasterWorkspaceFactoryClass();
IWorkspace workspace = workspaceFactory.OpenFromFile(rasterWorkSpace, 0);
IConversionOp conversionOp = new RasterConversionOpClass();
IRasterAnalysisEnvironment rasterAnalysisEnvironment = (IRasterAnalysisEnvironment)conversionOp;
rasterAnalysisEnvironment.OutWorkspace = workspace;
//set cell size
rasterAnalysisEnvironment.SetCellSize(esriRasterEnvSettingEnum.esriRasterEnvValue, ref _cellSize);
//set output extent
object objectMissing = Type.Missing;
rasterAnalysisEnvironment.SetExtent(esriRasterEnvSettingEnum.esriRasterEnvValue, ref _extentEnvelope, ref objectMissing);
//set output spatial reference
rasterAnalysisEnvironment.OutSpatialReference = ((IGeoDataset)pFeatureClass).SpatialReference;
//convertion
conversionOp.ToRasterDataset(geoDataset, _rasterType, workspace, newRasterName);
}
public static void exportRasterData(string parth, IRasterLayer rasterLayer, float[,] rasterMat) //输出栅格数据
{
string directory = parth.Substring(0, parth.LastIndexOf("\\"));
string name = parth.Substring(parth.LastIndexOf("\\") + 1);
IWorkspaceFactory workspaceFac = new RasterWorkspaceFactoryClass();
IRasterWorkspace2 rasterWorkspace2 = workspaceFac.OpenFromFile(directory, 0) as IRasterWorkspace2;
IRasterInfo rasterInfo = (rasterLayer.Raster as IRawBlocks).RasterInfo;
IPoint originPoint = new Point();
originPoint.PutCoords(rasterInfo.Origin.X, rasterInfo.Origin.Y - (rasterLayer.Raster as IRasterProps).Height * (rasterLayer.Raster as IRasterProps).MeanCellSize().Y);
IRasterProps rasterProps = rasterLayer.Raster as IRasterProps;
IRasterDataset rasterDataSet = rasterWorkspace2.CreateRasterDataset(name, "IMAGINE Image", originPoint, rasterProps.Width, rasterProps.Height,
rasterProps.MeanCellSize().X, rasterProps.MeanCellSize().Y, 1, rstPixelType.PT_FLOAT, rasterProps.SpatialReference, true) as IRasterDataset2;
IRaster2 raster2 = rasterDataSet.CreateDefaultRaster() as IRaster2;
IPnt pntClass = new Pnt();
pntClass.X = rasterProps.Width;
pntClass.Y = rasterProps.Height;
IRasterCursor rasterCursor = raster2.CreateCursorEx(pntClass);
IRasterCursor inRasterCursor = (rasterLayer.Raster as IRaster2).CreateCursorEx(pntClass);
IRasterEdit rasterEdit = raster2 as IRasterEdit;
if (rasterEdit.CanEdit())
{
IPixelBlock3 pixelBlock3 = rasterCursor.PixelBlock as IPixelBlock3;
IPixelBlock3 inPixelBlock3 = inRasterCursor.PixelBlock as IPixelBlock3;
System.Array pixels = (System.Array)rasterMat;
pixelBlock3.set_PixelData(0, (System.Array)pixels);
rasterEdit.Write(rasterCursor.TopLeft, (IPixelBlock)pixelBlock3);
System.Runtime.InteropServices.Marshal.ReleaseComObject(pixelBlock3);
}
rasterEdit.Refresh();
IGeoDataset inDataset = rasterLayer.Raster as IGeoDataset;
IGeoDataset outDataset = rasterDataSet as IGeoDataset;
IExtractionOp op = new RasterExtractionOpClass();
var outDataset1 = op.Raster(outDataset, inDataset);
var clipRaster = (IRaster)outDataset1;
ISaveAs pSaveAs = clipRaster as ISaveAs;
System.Runtime.InteropServices.Marshal.ReleaseComObject(rasterCursor);
System.Runtime.InteropServices.Marshal.ReleaseComObject(rasterEdit);
System.Runtime.InteropServices.Marshal.ReleaseComObject(raster2);
System.Runtime.InteropServices.Marshal.ReleaseComObject(rasterDataSet);
System.Runtime.InteropServices.Marshal.ReleaseComObject(rasterWorkspace2);
System.Runtime.InteropServices.Marshal.ReleaseComObject(workspaceFac);
if (File.Exists(parth))
{
File.Delete(parth);
}
workspaceFac = new RasterWorkspaceFactoryClass();
IDataset outdataset = pSaveAs.SaveAs(name, workspaceFac.OpenFromFile(directory, 0), "IMAGINE Image");
System.Runtime.InteropServices.Marshal.ReleaseComObject(outdataset);
return;
}
//设置实验结果矢量数据保存路径
public static IFeatureWorkspace setFeatureWorkspace(string path)
{
IWorkspaceFactory pWorkspaceFactory = new RasterWorkspaceFactoryClass();
IWorkspace pWorkspace = pWorkspaceFactory.OpenFromFile(path, 0);
IFeatureWorkspace pFeatureWorkspace = pWorkspace as IFeatureWorkspace;
return(pFeatureWorkspace);
}
private void btnSure_Click(object sender, EventArgs e)
{
SysCommon.CProgress vProgress = new SysCommon.CProgress("进度条");
try
{
if (txtSave.Text == "" || comboBoxOpenfeatures.Text == "" || comboBoxOpenraster.Text == "")
{
MessageBox.Show("参数未设置完全！", "提示");
return;
}
vProgress.EnableCancel = false;//设置进度条
vProgress.ShowDescription = true;
vProgress.FakeProgress = true;
vProgress.TopMost = true;
vProgress.ShowProgress();
vProgress.SetProgress("正在进行通视分析");
string Unit;
if (checkBox1.Checked)
{
Unit = "CURVED_EARTH";
}
else
{
Unit = "FLAT_EARTH";
}
double Z = Convert.ToDouble(txtZFactor.Text.ToString());
string SavName = System.IO.Path.GetDirectoryName(txtSave.Text);
ClsGPTool pClsGPTool = new ClsGPTool();
pClsGPTool.ViewshedAnalyseGP(filePath_features, filePath_raster, txtSave.Text, Unit, Z);//进行通视分析
vProgress.Close();
if (MessageBox.Show("通视分析成功，是否加载分析结果", "提示！", MessageBoxButtons.YesNo, MessageBoxIcon.Information) == DialogResult.Yes)
{
IWorkspaceFactory pWorkspaceFactory = new RasterWorkspaceFactoryClass(); // 张琪 20110611
IRasterWorkspace pRasterWorkspace = pWorkspaceFactory.OpenFromFile(SavName, 0) as IRasterWorkspace;
IRasterDataset pRasterDataset = pRasterWorkspace.OpenRasterDataset(System.IO.Path.GetFileName(txtSave.Text)); //包含扩展名的表面数据集
IRasterLayer pRasterLayer = new RasterLayerClass();
pRasterLayer.CreateFromDataset(pRasterDataset);
ILayer pLayer = pRasterLayer as ILayer;
m_pCurrentSceneControl.Scene.AddLayer(pLayer, true);
m_pCurrentSceneControl.SceneGraph.RefreshViewers();
if (this.WriteLog)
{
Plugin.LogTable.Writelog("通视分析,表面集为" + comboBoxOpenraster.Text + "，观测点为" + comboBoxOpenfeatures.Text);
Plugin.LogTable.Writelog("输出栅格路径为:" + txtSave.Text);
}
vProgress.Close();
}
this.Close();
}
catch
{
vProgress.Close();
this.Close();
MessageBox.Show("很抱歉，操作失败！", "提示！");
return;
}
}
private void button4_Click(object sender, EventArgs e)
{
this.Cursor = Cursors.WaitCursor;
DateTime fechaProcesamiento = sigpi.FechaProcesamiento;
IWorkspaceFactory pWF = new RasterWorkspaceFactoryClass();
IWorkspace pWorkspace = pWF.OpenFromFile(sigpi.Parametros.RutaSIGPI + "\\" + sigpi.Parametros.Raster, 0);
IEnumDataset pEnumDS = pWorkspace.get_Datasets(esriDatasetType.esriDTRasterDataset);
IDataset pDS = pEnumDS.Next();
List <string> capas = new List <string>();
while (pDS != null)
{
if (!pDS.Name.ToUpper().Contains("RASTER"))
{
capas.Add(pDS.Name.ToUpper());
}
pDS = pEnumDS.Next();
}
FrmProbabilidadCalculada frmProbabilidad = new FrmProbabilidadCalculada(capas.ToArray());
this.Cursor = Cursors.Default;
if (frmProbabilidad.ShowDialog() == System.Windows.Forms.DialogResult.Cancel)
{
return;
}
int iNumDias = frmProbabilidad.NumeroDeDias;
IProgressDialogFactory pProDiaFac = new ProgressDialogFactoryClass();
IStepProgressor pStepPro = pProDiaFac.Create(null, 0);
pStepPro.MinRange = 1;
pStepPro.MaxRange = 2;
pStepPro.StepValue = 1;
IProgressDialog2 pProDia = (IProgressDialog2)pStepPro;
pProDia.Animation = esriProgressAnimationTypes.esriProgressGlobe;
pProDia.Title = "Calcular Probabilidad";
pProDia.ShowDialog();
pStepPro.Step();
pStepPro.Message = "Calculando Probabilidad...";
try
{
procesamiento.ProbabilidadCalculada(frmProbabilidad.ModeloBase, iNumDias, sigpi, frmProbabilidad.OpcionDeGuardar);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
pProDia.HideDialog();
MessageBox.Show("Se ha calculado el modelo y la probabilidad para el dia:\n" + sigpi.FechaProcesamiento);
txtFechaUltimoModelo.Text = sigpi.FechaProcesamiento.ToLongDateString();
}
public void ExportRaster(IRasterDataset rasterDataset, string path, string sFormat, string sName)
{
IWorkspaceFactory wsF = new RasterWorkspaceFactoryClass();
IWorkspace ws = wsF.OpenFromFile(path, 0);
ISaveAs saveAs = rasterDataset as ISaveAs;
saveAs.SaveAs(sName, ws, sFormat);
}
public IRasterBand GetBand(IRasterLayer rasterlayer)
{
string fullpath = rasterlayer.FilePath;
string filePath = System.IO.Path.GetDirectoryName(fullpath);
string fileName = System.IO.Path.GetFileName(fullpath);
IWorkspaceFactory wsf = new RasterWorkspaceFactoryClass();
IWorkspace ws = wsf.OpenFromFile(filePath, 0);
IRasterWorkspace rasterws = ws as IRasterWorkspace;
IRasterDataset rastdataset = rasterws.OpenRasterDataset(fileName);
IRasterBandCollection bandcoll = rastdataset as IRasterBandCollection;
return bandcoll.Item(0);
}
public static List<string> getBandName(IRasterLayer rasterlayer)
{
string fullpath = rasterlayer.FilePath;
string filePath = System.IO.Path.GetDirectoryName(fullpath);
string fileName = System.IO.Path.GetFileName(fullpath);
IWorkspaceFactory wsf = new RasterWorkspaceFactoryClass();
IWorkspace ws = wsf.OpenFromFile(filePath, 0);
IRasterWorkspace rasterws = ws as IRasterWorkspace;
IRasterDataset rastdataset = rasterws.OpenRasterDataset(fileName);
IRasterBandCollection bandcoll = rastdataset as IRasterBandCollection;
List<string> itemband = new List<string>();
for (int i = 0; i < bandcoll.Count; i++)
{
itemband.Add(bandcoll.Item(i).Bandname);
}
return itemband;
}
/// <summary>
/// 获取该栅格图像的相关数据
/// <remarks>
/// <list type="bullet">
/// <item>
/// <term>
/// 初始化_pDataset
/// </term>
/// <item>
/// 获取栅格的Height和Width
/// </item>
/// </item>
/// </list>
/// </remarks>
/// </summary>
/// <returns></returns>
private void Open()
{
//Open
IWorkspaceFactory pRFactory = new RasterWorkspaceFactoryClass();
IRasterWorkspace2 rasterWorkspace = pRFactory.OpenFromFile(_rasterWorkSapce, 0) as IRasterWorkspace2;
if (rasterWorkspace == null)
throw new ArgumentException("栅格文件无法打开");
_pDataset= rasterWorkspace.OpenRasterDataset(_rasterName);
//set height and width
IRasterProps pRasterProps = (IRasterProps)GetRaster();
RasterInfo = new RasterInformation()
{
Width = pRasterProps.Width,
Height = pRasterProps.Height,
XCellSize = pRasterProps.MeanCellSize().X,
YCellSize = pRasterProps.MeanCellSize().Y,
OriginPoint = new PointClass() { X = pRasterProps.Extent.XMin, Y = pRasterProps.Extent.YMin },
SpatialReference = ((IGeoDataset) _pDataset).SpatialReference
};
}
//定义栅格打开函数
public static void OpenRaster(string rasterFileName, AxMapControl _MapControl)
{
if (!File.Exists(rasterFileName))
{
return;
}
try
{
//文件名处理
string ws = System.IO.Path.GetDirectoryName(rasterFileName);
string fbs = System.IO.Path.GetFileName(rasterFileName);
//创建工作空间
IWorkspaceFactory pWork = new RasterWorkspaceFactoryClass();
//打开工作空间路径，工作空间的参数是目录，不是具体的文件名
IRasterWorkspace pRasterWS = (IRasterWorkspace)pWork.OpenFromFile(ws, 0);
//打开工作空间下的文件，
IRasterDataset pRasterDataset = pRasterWS.OpenRasterDataset(fbs);
IRasterLayer pRasterLayer = new RasterLayerClass();
pRasterLayer.CreateFromDataset(pRasterDataset);
//添加到图层控制中
_MapControl.Map.AddLayer(pRasterLayer as ILayer);
}
catch { }
}
/// <summary>
///
/// </summary>
/// <param name="workSpaceName"></param>
/// <param name="rasterName"></param>
public void CopyTo(string workSpaceName, string rasterName)
{
IWorkspaceFactory pFactory=new RasterWorkspaceFactoryClass();
IWorkspace pWorkspace = pFactory.OpenFromFile(workSpaceName, 0);
if (_pDataset != null)
{
_pDataset.Copy(rasterName, pWorkspace);
}
}
public static void OpenFileRasterDataset(string inFolderName, string inRasterDatasetName, string inFeatureName, string inFieldName, double outCellSize, string outSummaryFile)
{
EnableEsriLiscences();
//Get feature raster from feature shp
string outTempRasterName = "tempZoneRasterFromESRI.tif";
string outZoneRater = inFolderName + "\\" + outTempRasterName;
int rasterBlockSize = 1024;
RasterizeEsri.Rasterize(inFeatureName, outZoneRater, inFieldName, outCellSize);
//Open raster file workspace
IWorkspaceFactory workspaceFactory = new RasterWorkspaceFactoryClass();
IRasterWorkspace rasterWorkspace = (IRasterWorkspace)workspaceFactory.OpenFromFile(inFolderName, 0);
//Align raster
string inValueRaster = inFolderName + "\\" + inRasterDatasetName;
string inClipFeature = inFeatureName;
string outClippedRasterName = "tempValueRasterFromESRI.tif";
string outClippedValueRaster = inFolderName + "\\" + outClippedRasterName;
ClipRasterBoundaryEsri.ClipRaster(inValueRaster, inClipFeature, outClippedValueRaster);
//Open zone raster dataset
IRasterDataset zoneRasterDataset = rasterWorkspace.OpenRasterDataset(outTempRasterName);
IRasterDataset2 zoneRasterDataset2 = zoneRasterDataset as IRasterDataset2;
IRaster2 zoneRs2 = zoneRasterDataset2.CreateFullRaster() as IRaster2;
//Open value raster dataset
IRasterDataset valueRasterDataset = rasterWorkspace.OpenRasterDataset(outClippedRasterName);
IRasterDataset2 valueRasterDataset2 = valueRasterDataset as IRasterDataset2;
IRaster2 valueRs2 = valueRasterDataset2.CreateFullRaster() as IRaster2;
//Extract bands from the raster
IRasterBandCollection valueRasterPlanes = valueRasterDataset as IRasterBandCollection;
//create raster cursor to read block by block
IPnt blockSize = new PntClass();
blockSize.SetCoords(rasterBlockSize, rasterBlockSize);
IRasterCursor valueRasterCursor = valueRs2.CreateCursorEx(blockSize);
IRasterCursor zoneRasterCursor = zoneRs2.CreateCursorEx(blockSize);
if (valueRasterPlanes != null)
{
Dictionary<int, StatisticsInfo>[] rasInfoDict = new Dictionary<int, StatisticsInfo>[valueRasterPlanes.Count];
int zoneRasterBandId = 0;
for (int b = 0; b < valueRasterPlanes.Count; b++)
{
rasInfoDict[b] = new Dictionary<int, StatisticsInfo>();
}
do
{
IPixelBlock3 valueRasterPixelBlock3 = valueRasterCursor.PixelBlock as IPixelBlock3;
IPixelBlock3 zoneRasterPixelBlock3 = zoneRasterCursor.PixelBlock as IPixelBlock3;
//No Idea how esri cursor fills the raster gap if zone is greater than value, so quick and fix using smallest extent
int blockWidth = valueRasterPixelBlock3.Width < zoneRasterPixelBlock3.Width ? valueRasterPixelBlock3.Width : zoneRasterPixelBlock3.Width;
int blockHeight = valueRasterPixelBlock3.Height < zoneRasterPixelBlock3.Height ? valueRasterPixelBlock3.Height : zoneRasterPixelBlock3.Height;
//Console.WriteLine(zoneRasterPixelBlock3.Width);
//Console.WriteLine(blockWidth);
try
{
System.Array zoneRasterPixels = (System.Array)zoneRasterPixelBlock3.get_PixelData(zoneRasterBandId);
for (int b = 0; b < valueRasterPlanes.Count; b++)
{
//Console.WriteLine(b);
//Get pixel array
System.Array valueRasterPixels = (System.Array)valueRasterPixelBlock3.get_PixelData(b);
for (int i = 0; i < blockWidth; i++)
{
for (int j = 0; j < blockHeight; j++)
{
//Get pixel value
object pixelValueFromValue = null;
object pixelValueFromZone = null;
try
{
pixelValueFromValue = valueRasterPixels.GetValue(i, j);
pixelValueFromZone = zoneRasterPixels.GetValue(i, j);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
//process each pixel value
try
{
if (rasInfoDict[b].ContainsKey(Convert.ToInt32(pixelValueFromZone)))
{
StatisticsInfo rastStatistics = rasInfoDict[b][Convert.ToInt32(pixelValueFromZone)];
rastStatistics.Count++;
rastStatistics.Sum = rastStatistics.Sum + Convert.ToDouble(pixelValueFromValue);
rasInfoDict[b][Convert.ToInt32(pixelValueFromZone)] = rastStatistics;
}
else
{
rasInfoDict[b][Convert.ToInt32(pixelValueFromZone)] = new StatisticsInfo() { Count = 1, Sum = Convert.ToDouble(pixelValueFromValue) };
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
//Console.WriteLine(i +"-"+j);
//Console.WriteLine(pixelValueFromValue + "-" + pixelValueFromZone);
}
}
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
} while (zoneRasterCursor.Next() == true);
//Export results
StatisticsExport writer = new StatisticsExport(outSummaryFile);
writer.ExportZonalStatistics(ref rasInfoDict, outCellSize);
}
else
{
Console.WriteLine("No band available in the Value Raster");
}
}
public void ExportRaster(IRasterDataset rasterDataset, string path, string sFormat, string sName)
{
IWorkspaceFactory wsF = new RasterWorkspaceFactoryClass();
IWorkspace ws = wsF.OpenFromFile(path,0);
ISaveAs saveAs = rasterDataset as ISaveAs;
saveAs.SaveAs(sName, ws, sFormat);
}
private static IRasterDataset OpenFileRasterDataset(string fullpath)
{
try
{
IWorkspaceFactory WorkspaceFactory = new RasterWorkspaceFactoryClass();
string filePath = System.IO.Path.GetDirectoryName(fullpath);
string fileName = System.IO.Path.GetFileName(fullpath);
IWorkspace Workspace = WorkspaceFactory.OpenFromFile(filePath, 0);
IRasterWorkspace rasterWorkspace = (IRasterWorkspace)Workspace;
IRasterDataset rasterSet = (IRasterDataset)rasterWorkspace.OpenRasterDataset(fileName);
return rasterSet;
}
catch
{
return null;
}
}
//Ϊդ��ͼ�����ݽ���ͨ�ӷ�����ɫ
public static IRasterLayer SetViewShedRenderer(IRaster pInRaster, string sField, string sPath)
{
IRasterDescriptor pRD = new RasterDescriptorClass();
pRD.Create(pInRaster, new QueryFilterClass(), sField);
IReclassOp pReclassOp = new RasterReclassOpClass();
IGeoDataset pGeodataset = pInRaster as IGeoDataset;
IRasterAnalysisEnvironment pEnv = pReclassOp as IRasterAnalysisEnvironment;
IWorkspaceFactory pWSF = new RasterWorkspaceFactoryClass();
IWorkspace pWS = pWSF.OpenFromFile(sPath, 0);
pEnv.OutWorkspace = pWS;
object objSnap = null;
object objExtent = pGeodataset.Extent;
pEnv.SetExtent(esriRasterEnvSettingEnum.esriRasterEnvValue, ref objExtent, ref objSnap);
pEnv.OutSpatialReference = pGeodataset.SpatialReference;
IRasterLayer pRLayer = new RasterLayerClass();
IRasterBandCollection pRsBandCol = pGeodataset as IRasterBandCollection;
IRasterBand pRasterBand = pRsBandCol.Item(0);
pRasterBand.ComputeStatsAndHist();
IRasterStatistics pRasterStatistic = pRasterBand.Statistics;
double dMaxValue = pRasterStatistic.Maximum;
double dMinValue = pRasterStatistic.Minimum;
INumberRemap pNumRemap = new NumberRemapClass();
pNumRemap.MapRange(dMinValue, 0, 0);
pNumRemap.MapRange(0, dMaxValue, 1);
IRemap pRemap = pNumRemap as IRemap;
IRaster pOutRaster = pReclassOp.ReclassByRemap(pGeodataset, pRemap, false) as IRaster;
pRLayer.CreateFromRaster(pOutRaster);
return pRLayer;
}
//
//
//
public static IGeoDataset openRasterfromFile(string fullPath)
{
string pathToWorkspace = System.IO.Path.GetDirectoryName(fullPath);
string rasterfileName = System.IO.Path.GetFileName(fullPath);
IRasterWorkspace pRWS;//=new ESRI.ArcGIS.DataSourcesRaster.RasterWorkspaceClass();
IWorkspaceFactory pWSF;//=new ESRI.ArcGIS.DataSourcesRaster.WorkspaceFactoryClass()
IWorkspace pWS;
IRasterDataset pRasterDataset;
IRaster pRaster;
IRasterLayer pRasterLayer = new RasterLayerClass();
//pRWS=new RasterWorkspaceClass();
pWSF = new RasterWorkspaceFactoryClass();
pWS = pWSF.OpenFromFile(pathToWorkspace, 0);
pRWS = pWS as IRasterWorkspace;
pRasterDataset = pRWS.OpenRasterDataset(rasterfileName);
pRaster = pRasterDataset.CreateDefaultRaster();
//pRasterLayer.CreateFromRaster(pRaster);
return pRaster as IGeoDataset;
}
private IRasterLayer calWSCons(string _outPath)
{
//��դ�� pMapAlgebraOp
try
{
if (pMapAlgebraOp==null)
{
pMapAlgebraOp = new RasterMapAlgebraOpClass();
}
string strExp = "";
string sRainPath = "";
//��ֱ���ý�����ʴ�����ݻ��ǽ������ݼ���
IRaster pRasterR = null;
if (rbtnR.Checked)
{
pRasterR = (pMap.get_Layer(LayerOprate.getLayerIndexByName(pMap, this.cmbR.Text)) as IRasterLayer).Raster;
pMapAlgebraOp.BindRaster(pRasterR as IGeoDataset, "R");
}
else
{
sRainPath = this.txtPcpPath.Text;
//
IWorkspaceFactory pWsF = new RasterWorkspaceFactoryClass();
IRasterWorkspace pRWs;
IRasterDataset pRDs = new RasterDatasetClass();
IRasterLayer pRLyr = new RasterLayerClass();
pRWs = pWsF.OpenFromFile(sRainPath, 0) as IRasterWorkspace;
string sFileName="";
for (int i = 1; i < 13; i++)
{
sFileName = this.txtPcpPrefix.Text + i.ToString() + this.txtPcpSuffix.Text;
pRDs = pRWs.OpenRasterDataset(sFileName);
pMapAlgebraOp.BindRaster(pRDs as IGeoDataset, sFileName);
strExp = strExp + "[" + sFileName + "] + ";
}
//cal total pcp
strExp = strExp.TrimEnd("+ ".ToCharArray());
IGeoDataset pGeoDsPcp = pMapAlgebraOp.Execute(strExp);
pMapAlgebraOp.BindRaster(pGeoDsPcp, "Pcp");
//cal Ri
strExp = "";
string sFileNameE = "",sDsName="",strExpR="";
for (int i = 1; i < 13; i++)
{
sFileName = this.txtPcpPrefix.Text + i.ToString() + this.txtPcpSuffix.Text;
sFileNameE="["+sFileName+"]";
strExp = "1.735 * pow(10,1.5 * log10((" + sFileNameE + " * " + sFileNameE + ") / [Pcp]) - 0.08188)";
IGeoDataset pGeoDsRi = pMapAlgebraOp.Execute(strExp);
sDsName = "Pcp" + i.ToString();
pMapAlgebraOp.BindRaster(pGeoDsRi, sDsName);
pMapAlgebraOp.UnbindRaster(sFileName);
strExpR = strExpR + "[" + sDsName + "] + ";
}
//cal R
strExpR = strExpR.TrimEnd("+ ".ToCharArray());
IGeoDataset pGeoDsR = pMapAlgebraOp.Execute(strExpR);
pMapAlgebraOp.BindRaster(pGeoDsR, "R");
for (int i = 1; i < 13; i++)
{
sDsName = "Pcp" + i.ToString();
pMapAlgebraOp.UnbindRaster(sDsName);
}
}
//����K����
IRaster pRasterSclay = (pMap.get_Layer(LayerOprate.getLayerIndexByName(pMap, this.cmbSoilClay.Text)) as IRasterLayer).Raster;
pMapAlgebraOp.BindRaster(pRasterSclay as IGeoDataset, "clay");
IRaster pRasterSsand = (pMap.get_Layer(LayerOprate.getLayerIndexByName(pMap, this.cmbSoilSand.Text)) as IRasterLayer).Raster;
pMapAlgebraOp.BindRaster(pRasterSsand as IGeoDataset, "sand");
IRaster pRasterSslit = (pMap.get_Layer(LayerOprate.getLayerIndexByName(pMap, this.cmbSoilSlit.Text)) as IRasterLayer).Raster;
pMapAlgebraOp.BindRaster(pRasterSslit as IGeoDataset, "slit");
IRaster pRasterSOrg = (pMap.get_Layer(LayerOprate.getLayerIndexByName(pMap, this.cmbSoilOrganic.Text)) as IRasterLayer).Raster;
pMapAlgebraOp.BindRaster(pRasterSOrg as IGeoDataset, "org");
//cal K
//K =(0.2 + 0.3 * exp(-0.0256 * soil_sand * (1.0 - soil_silt / 100.0))) * pow((soil_silt * 1.0 / (soil_clay * 1.0 + soil_silt * 1.0)),0.3) * (1.0 - 0.25 * soil_oc / (soil_oc * 1.0 + exp(3.72 - 2.95 * soil_oc))) * (1.0 - (0.7 * ksd) / (ksd + exp(-5.51 + 22.9 * ksd)))
strExp = "(0.2 + 0.3 * Exp(-0.0256 * [sand] * (1.0 - [slit] / 100.0))) * Pow(([slit] * 1.0 / ([clay] * 1.0 + [slit] * 1.0)), 0.3) * (1.0 - 0.25 * [org] * 0.58 / ([org] * 0.58 + Exp(3.72 - 2.95 * [org] * 0.58))) * (1.0 - (0.7 * (1.0 - [sand] / 100.0)) / ((1.0 - [sand] / 100.0) + Exp(-5.51 + 22.9 * (1.0 - [sand] / 100.0))))";
IGeoDataset pGeoDsK = pMapAlgebraOp.Execute(strExp);
pMapAlgebraOp.BindRaster(pGeoDsK, "K");
pMapAlgebraOp.UnbindRaster("clay");
pMapAlgebraOp.UnbindRaster("sand");
pMapAlgebraOp.UnbindRaster("slit");
pMapAlgebraOp.UnbindRaster("org");
//cal L*S
IHydrologyOp pHydrologyOp = new RasterHydrologyOpClass();
object objZLimit = System.Type.Missing;
IRaster pRasterDem = (pMap.get_Layer(LayerOprate.getLayerIndexByName(pMap, this.cmbDem.Text)) as IRasterLayer).Raster;
//Fill Dem
IGeoDataset pGeoDsDemFill =pHydrologyOp.Fill(pRasterDem as IGeoDataset,ref objZLimit);
// cal FlowDirection
IGeoDataset pGeoDsFlowDir = pHydrologyOp.Fill(pGeoDsDemFill, ref objZLimit);
//cal FlowAccumulation
IGeoDataset pGeoDsFlowAcc = pHydrologyOp.Fill(pGeoDsFlowDir, ref objZLimit);
pMapAlgebraOp.BindRaster(pGeoDsFlowAcc, "FlowAcc");
//cal Slope with Deg
ISurfaceOp pSurfaceOp = new RasterSurfaceOpClass();
object objZFactor = System.Type.Missing;
IGeoDataset pGeoDsSlope = pSurfaceOp.Slope(pGeoDsDemFill, esriGeoAnalysisSlopeEnum.esriGeoAnalysisSlopeDegrees, ref objZFactor);
// bind raster data "Slope"
pMapAlgebraOp.BindRaster(pGeoDsSlope, "Slope");
//cal S
strExp = "Con([Slope] < 5,10.8 * Sin([Slope] * 3.14 / 180) + 0.03,[Slope] >= 10,21.9 * Sin([Slope] * 3.14 / 180) - 0.96,16.8 * Sin([Slope] * 3.14 / 180) - 0.5)";
IGeoDataset pGeoDsS = pMapAlgebraOp.Execute(strExp);
pMapAlgebraOp.BindRaster(pGeoDsS, "S");
//cal m
strExp = "Con([Slope] <= 1,0.2,([Slope] > 1 & [Slope] <= 3),0.3,[Slope] >= 5,0.5,0.4)";
IGeoDataset pGeoDsM = pMapAlgebraOp.Execute(strExp);
pMapAlgebraOp.BindRaster(pGeoDsM, "m");
//cal ls
strExp = "[S] * Pow(([FlowAcc] * "+this.txtCellSize.Text+" / 22.1),[m])";
IGeoDataset pGeoDsLS = pMapAlgebraOp.Execute(strExp);
pMapAlgebraOp.BindRaster(pGeoDsLS, "LS");
pMapAlgebraOp.UnbindRaster("m");
pMapAlgebraOp.UnbindRaster("S");
pMapAlgebraOp.UnbindRaster("Slope");
pMapAlgebraOp.UnbindRaster("FlowAcc");
IRaster pRasterC = null;
if (rbtnVegCover.Checked)
{
pRasterC = (pMap.get_Layer(LayerOprate.getLayerIndexByName(pMap, this.cmbC.Text)) as IRasterLayer).Raster;
pMapAlgebraOp.BindRaster(pRasterC as IGeoDataset, "C");
}
else
{
//cal vegetation cover
IRaster pRasterNDVI = (pMap.get_Layer(LayerOprate.getLayerIndexByName(pMap, this.cmbC.Text)) as IRasterLayer).Raster;
IRasterBandCollection pRasterBandCollection = pRasterNDVI as IRasterBandCollection;
IRasterBand pRasterBand = pRasterBandCollection.Item(0);
pRasterBand.ComputeStatsAndHist();
IRasterStatistics pRasterStatistics = pRasterBand.Statistics;
double dMax = pRasterStatistics.Maximum;
double dMin = pRasterStatistics.Minimum;
pMapAlgebraOp.BindRaster(pRasterNDVI as IGeoDataset, "NDVI");
if (dMin < 0)
{
dMin = 0;
}
//veg%yr% = (ndvi%yr% - ndvi%yr%min) / (ndvi%yr%max - ndvi%yr%min)
strExp = "([NDVI] - "+dMin+") / ("+dMax +" - "+dMin+")";
IGeoDataset pGeoDsC = pMapAlgebraOp.Execute(strExp);
pMapAlgebraOp.BindRaster(pGeoDsC, "C");
pMapAlgebraOp.UnbindRaster("NDVI");
}
//����P����
IRaster pRasterP = (pMap.get_Layer(LayerOprate.getLayerIndexByName(pMap, this.cmbP.Text)) as IRasterLayer).Raster;
pMapAlgebraOp.BindRaster(pRasterP as IGeoDataset, "P");
if (_outPath != "")
{
strExp = _outPath + " = [R] * [K] * [LS] * (1 - [C]) * [P]";
}
else
{
strExp = "[R] * [K] * [LS] * (1 - [C]) * [P]";
}
IGeoDataset pGeoDsSr = pMapAlgebraOp.Execute(strExp);
IRaster pOutRaster = pGeoDsSr as IRaster;
IRasterLayer pOutRasterLayer = new RasterLayerClass();
pOutRasterLayer.CreateFromRaster(pOutRaster);
//��������
//string strOutDir = _outPath.Substring(0, _outPath.LastIndexOf("\\"));
int startX = _outPath.LastIndexOf("\\");
int endX = _outPath.Length;
string sRLyrName = _outPath.Substring(startX + 1, endX - startX - 1);
pOutRasterLayer.Name = sRLyrName;
pMapAlgebraOp = null;
return pOutRasterLayer;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message.ToString());
return null;
}
}
//获取栅格数据集的目录
IRasterWorkspace GetRasterWorkspace(string pWsName)
{
try
{
IWorkspaceFactory pWorkFact = new RasterWorkspaceFactoryClass();
return pWorkFact.OpenFromFile(pWsName, 0) as IRasterWorkspace;
}
catch (Exception ex)
{
return null;
}
}
public IRasterDataset OpenFileRasterDataset(string pFolderName, string pDatasetName)
{
IWorkspaceFactory pWorkspaceFactory = new RasterWorkspaceFactoryClass();
IRasterWorkspace pRasterWorkspace = (IRasterWorkspace)pWorkspaceFactory.OpenFromFile(pFolderName, 0);
IRasterDataset pRasterDataset = pRasterWorkspace.OpenRasterDataset(pDatasetName);
return pRasterDataset;
}
/// <summary>
/// Raster图层导入到数据库
/// </summary>
/// <params name="dbWorkspace">数据库</params>
/// <params name="strRasterFileDir">本地栅格图层路径</params>
/// <params name="strRasterFileName">本地栅格图层名称</params>
/// <params name="strOutName">数据库栅格图层名称</params>
/// <returns></returns>
public IRasterDataset RasterFileIntoGDB(IWorkspace dbWorkspace,string strRasterFileDir,
string strRasterFileName,string strOutName)
{
IWorkspace pSdeWorkSpace = dbWorkspace;
try
{
//判断是否有重名现象
IWorkspace2 pWS2 = pSdeWorkSpace as IWorkspace2;
//如果名称已存在
if (pWS2.get_NameExists(esriDatasetType.esriDTRasterDataset, strOutName))
{
DialogResult result;
result = MessageBox.Show("栅格文件名 " + strOutName + " 在数据库中已存在!" +
"\r是否覆盖?", "相同文件名", MessageBoxButtons.YesNo,
MessageBoxIcon.Information, MessageBoxDefaultButton.Button1);
//覆盖原栅格要素
if (result == DialogResult.Yes)
{
IRasterWorkspaceEx pRWs = pSdeWorkSpace as IRasterWorkspaceEx;
IDataset pDataset = pRWs.OpenRasterDataset(strOutName) as IDataset;
pDataset.Delete();
pDataset = null;
}
else if (result == DialogResult.No)
{
//不覆盖,则退出for循环,忽略这个要素,转入下一个要素的导入
return null;
}
}
IWorkspaceFactory pRasterWsFac = new RasterWorkspaceFactoryClass();
IWorkspace pWs = pRasterWsFac.OpenFromFile(strRasterFileDir, 0);
IRasterDataset pRasterDs = null;
IRasterWorkspace pRasterWs;
if (!(pWs is IRasterWorkspace))
{
MessageBox.Show("错误信息：" + strRasterFileDir + "不是栅格工作空间。");
return null;
}
pRasterWs = pWs as IRasterWorkspace;
pRasterDs = pRasterWs.OpenRasterDataset(strRasterFileName);
ISaveAs2 saveAs2 = (ISaveAs2)pRasterDs;
IRasterStorageDef rasterStorageDef = new RasterStorageDefClass();
IRasterStorageDef2 rasterStorageDef2 = (IRasterStorageDef2)rasterStorageDef;
rasterStorageDef2.CompressionType =
esriRasterCompressionType.esriRasterCompressionJPEG2000;
rasterStorageDef2.CompressionQuality = 50;
rasterStorageDef2.Tiled = true;
rasterStorageDef2.TileHeight = 128;
rasterStorageDef2.TileWidth = 128;
saveAs2.SaveAsRasterDataset(strOutName, pSdeWorkSpace, "JP2", rasterStorageDef2);
return pRasterDs;
}
catch (Exception ex)
{
MessageBox.Show("错误信息：" + ex.Message);
return null;
}
}
private void btnCalculator_Click(object sender, EventArgs e)
{
if (this.lstLayer.Items.Count == 0)
{
MessageBox.Show("请先在地图中加载要操作的栅格图像.");
}
try
{
string strOutFileName="";
if (this.txtExpression.Text.IndexOf(" = ")>0)
strOutFileName = this.txtExpression.Text.Substring(0, this.txtExpression.Text.IndexOf(" = "));
IGeoDataset pGeoDs = pMapAlgebraOp.Execute(this.txtExpression.Text.Trim());
IRaster pOutRaster = pGeoDs as IRaster;
IRasterLayer pOutRasterLayer = new RasterLayerClass();
if(strOutFileName.Trim()!="")
{
IWorkspaceFactory pWSF = new RasterWorkspaceFactoryClass();
IWorkspace pRWS = pWSF.OpenFromFile(strAnalysisPath, 0);
IRasterBandCollection pRasBandCol = (IRasterBandCollection)pGeoDs;
pRasBandCol.SaveAs(strOutFileName, pRWS, "GRID");//"IMAGINE Image"
pOutRasterLayer = UtilityFunction.SetStretchRenderer(pOutRaster);
pOutRasterLayer.Name = strOutFileName;
pMap.AddLayer(pOutRasterLayer);
}
else
{
pOutRasterLayer = UtilityFunction.SetStretchRenderer(pOutRaster);
pMap.AddLayer(pOutRaster as IRasterLayer);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message.ToString());
}
}
private void AddRasterData()
{
try
{
IRasterLayer pRasterLayer;
pRasterLayer = new RasterLayerClass();
String rasterFileName, rasterDirName;
IRasterWorkspace pRWS;//=new ESRI.ArcGIS.DataSourcesRaster.RasterWorkspaceClass();
IWorkspaceFactory pWSF;//=new ESRI.ArcGIS.DataSourcesRaster.WorkspaceFactoryClass();
IRaster pRaster;
IRasterDataset pRasterDataset;
IWorkspace pWS;
String rawFileName;
int startX, endX;
//IRasterLayer pRasterLayer;
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
rasterFileName = openFileDialog1.FileName;
statusBar1.Text = rasterFileName;
rasterDirName = rasterFileName.Substring(0, rasterFileName.LastIndexOf("\\"));
startX = rasterFileName.LastIndexOf("\\");
endX = rasterFileName.Length;
rawFileName = rasterFileName.Substring(startX + 1, endX - startX - 1);
//sDirName =sRequest.Substring(sRequest.IndexOf("/"), sRequest.LastIndexOf("/")-3);
//pRWS=new RasterWorkspaceClass();
pWSF = new RasterWorkspaceFactoryClass();
pWS = pWSF.OpenFromFile(rasterDirName, 0);
pRWS = pWS as IRasterWorkspace;
pRasterDataset = pRWS.OpenRasterDataset(rawFileName);
pRaster = pRasterDataset.CreateDefaultRaster();
pRasterLayer.CreateFromRaster(pRaster);
axMapControl1.AddLayer(pRasterLayer as ILayer, 0);
}
}
catch (Exception e)
{
}
}
private void AddPic()
{
System.Windows.Forms.OpenFileDialog ofd = new OpenFileDialog();
ofd.Filter = "*.bmp|*.bmp|*.jpg|*.jpg|*.tif|*.tif";
ofd.ShowDialog();
string filePath = ofd.FileName;
//此两个路径和文件名作为参数：
string pathName = System.IO.Path.GetDirectoryName(filePath);
string fileName = System.IO.Path.GetFileName(filePath);
//定义工作空间工厂并实例化：
IWorkspaceFactory pWSF;
pWSF = new RasterWorkspaceFactoryClass();
//
IWorkspace pWS;
pWS = pWSF.OpenFromFile(pathName, 0);
IRasterWorkspace pRWS;
pRWS = pWS as IRasterWorkspace;
IRasterDataset pRasterDataset;
pRasterDataset = pRWS.OpenRasterDataset(fileName);
//影像金字塔的判断与创建
IRasterPyramid pRasPyrmid;
pRasPyrmid = pRasterDataset as IRasterPyramid;
if (pRasPyrmid != null)
{
if (!(pRasPyrmid.Present))
{
pRasPyrmid.Create();
}
}
IRaster pRaster;
pRaster = pRasterDataset.CreateDefaultRaster();
IRasterLayer pRasterLayer;
pRasterLayer = new RasterLayerClass();
pRasterLayer.CreateFromRaster(pRaster);
ILayer pLayer = pRasterLayer as ILayer;
Global.mainmap.AddLayer(pLayer, 0);
}
private IRasterLayer SetViewShedRenderer(IRaster pInRaster, string sField, string sPath,double[,] dValue)
{
try
{
if (dValue == null)
return null;
if (sField.Trim() == "")
return null;
string path="";
string fileName="";
int iPath=sPath.LastIndexOf('\\');
path=sPath.Substring(0,iPath);
fileName=sPath.Substring(iPath+1,sPath.Length-iPath-1);
IRasterDescriptor pRD = new RasterDescriptorClass();
pRD.Create(pInRaster, null, sField);
IReclassOp pReclassOp = new RasterReclassOpClass();
IGeoDataset pGeodataset = pInRaster as IGeoDataset;
IRasterAnalysisEnvironment pEnv = pReclassOp as IRasterAnalysisEnvironment;
IWorkspaceFactory pWSF = new RasterWorkspaceFactoryClass();
IWorkspace pWS = pWSF.OpenFromFile(path, 0);
//pEnv.OutWorkspace = pWS;
//object objSnap = null;
//object objExtent = pGeodataset.Extent;
//pEnv.SetExtent(esriRasterEnvSettingEnum.esriRasterEnvValue, ref objExtent, ref objSnap);
//pEnv.OutSpatialReference = pGeodataset.SpatialReference;
IRasterBandCollection pRsBandCol = pGeodataset as IRasterBandCollection;
IRasterBand pRasterBand = pRsBandCol.Item(0);
pRasterBand.ComputeStatsAndHist();
IRasterStatistics pRasterStatistic = pRasterBand.Statistics;
double dMaxValue = pRasterStatistic.Maximum;
double dMinValue = pRasterStatistic.Minimum;
INumberRemap pNumRemap = new NumberRemapClass();
for (int i = 0; i < (dValue.Length/3); i++)
{
pNumRemap.MapRange(dValue[i, 0], dValue[i, 1], (Int32)dValue[i, 2]);
}
IRemap pRemap = pNumRemap as IRemap;
IGeoDataset pGeoDs = new RasterDatasetClass();
pGeoDs=pReclassOp.ReclassByRemap(pGeodataset, pRemap, false);
IRasterBandCollection pRasBandCol = (IRasterBandCollection)pGeoDs;
pRasBandCol.SaveAs(fileName, pWS, "GRID");//"IMAGINE Image"
IRaster pOutRaster =pGeoDs as IRaster;
IRasterLayer pRLayer = new RasterLayerClass();
pRLayer.CreateFromRaster(pOutRaster);
pRLayer.Name = fileName;
return pRLayer;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message.ToString());
return null;
}
}
//
//��դ�����ݼ�
//
public static IRasterDataset OpenRasterDataset(string sDir, string sName)
{
try
{
IRasterDataset pRSD = null;
IWorkspaceFactory pWSF = new RasterWorkspaceFactoryClass();
if (pWSF.IsWorkspace(sDir))
{
IWorkspace pWS = pWSF.OpenFromFile(sDir, 0);
IRasterWorkspace pRsWs = pWS as IRasterWorkspace;
pRSD = pRsWs.OpenRasterDataset(sName);
}
return pRSD;
}
catch
{
return null;
}
}
//Open file based raster workspace
static IWorkspace OpenWorkspace(string path)
{
IWorkspaceFactory workspaceFactory = new RasterWorkspaceFactoryClass();
IWorkspace rasterWorkspace = workspaceFactory.OpenFromFile(path, 0);
return rasterWorkspace;
}
public static IWorkspace setRasterWorkspace(string sPath)
{
IWorkspaceFactory pWSF;
pWSF = new RasterWorkspaceFactoryClass() as IWorkspaceFactory;
return pWSF.OpenFromFile(sPath, 0) as IWorkspace;
}
public static void AddData_RST(AxMapControl axMapControl1)
{
IWorkspaceFactory pWorkspaceFactory;
IRasterWorkspace pRasterWorkspace;
OpenFileDialog openFileDialog2 = new OpenFileDialog();
openFileDialog2.Filter = "Layer File(*.lyr)|*.jpg;*.bmp;*.tiff";
openFileDialog2.Title = "添加数据";
//获取当前路径和文件名
if (openFileDialog2.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
string strFullPath = openFileDialog2.FileName;
if (strFullPath == "") return;
int Index = strFullPath.LastIndexOf("\\");
string fileName = strFullPath.Substring(Index + 1);
string filePath = strFullPath.Substring(0, Index);
pWorkspaceFactory = new RasterWorkspaceFactoryClass();
pRasterWorkspace = (IRasterWorkspace)pWorkspaceFactory.OpenFromFile(filePath, 0);
IRasterDataset pRasterDataset = (IRasterDataset)pRasterWorkspace.OpenRasterDataset(fileName);
IRasterLayer pRasterLayer = new RasterLayerClass();
pRasterLayer.CreateFromDataset(pRasterDataset);
axMapControl1.Map.AddLayer(pRasterLayer);
ILayer layer = axMapControl1.get_Layer(0);
axMapControl1.Extent = layer.AreaOfInterest;
}
}
//
//
//
public static void ConvertRasterToRsDataset(string sPath, IRaster pRaster, string sOutName)
{
try
{
IWorkspaceFactory pWSF = new RasterWorkspaceFactoryClass();
if (pWSF.IsWorkspace(sPath) == false)
return;
IWorkspace pRWS = pWSF.OpenFromFile(sPath, 0);
if (File.Exists(sPath + "\\" + sOutName + ".img") == true)
File.Delete(sPath + "\\" + sOutName + ".img");
//IRasterDescriptor pRasterDes = new RasterDescriptorClass();
//pRasterDes.Create(pRaster, null, "Value");
IRasterBandCollection pRasBandCol = pRaster as IRasterBandCollection;
//DeleteFile(sPath,sOutName);
IDataset pDS = pRasBandCol.SaveAs(sOutName + ".img", pRWS, "IMAGINE Image");
ITemporaryDataset pRsGeo = pDS as ITemporaryDataset;
if (pRsGeo.IsTemporary())
pRsGeo.MakePermanent();
}
catch (Exception e)
{
MessageBox.Show(e.Message);
}
}
private IRasterWorkspace2 OpenRasterWorkspace()
{
IWorkspaceFactory workspaceFact = new RasterWorkspaceFactoryClass();
return workspaceFact.OpenFromFile(_workSpace, 0) as IRasterWorkspace2;
}
private void btnGO_Click(object sender, EventArgs e)
{
string strInFileName;
string strOutFileName;
int startX, endX;
string strOutDir;
try
{
if (bDataPath == true)
{
strInFileName = txtOutPath.Text;
strOutDir = strInFileName.Substring(0, strInFileName.LastIndexOf("\\"));
startX = strInFileName.LastIndexOf("\\");
endX = strInFileName.Length;
strOutFileName = strInFileName.Substring(startX + 1, endX - startX - 1);
}
else
{
strOutDir = txtOutPath.Text;
strOutFileName = "slope";
}
if (File.Exists(strOutDir + "\\" + strOutFileName + ".aux") == true)
{
MessageBox.Show("�ļ�" + strOutFileName + "�Ѿ����ڣ�������������");
return;
}
if (m_pRasterLyr != null)
{
double dCellSize = Convert.ToDouble(txtCellSize.Text);
ISurfaceOp pRasterSurfaceOp = new RasterSurfaceOpClass();
double dZFactor = Convert.ToDouble(txtZFactor.Text);
object objZFactor = dZFactor;
IRaster pInRaster = m_pRasterLyr.Raster;
IGeoDataset pGeoDs = null;
IRasterLayer pOutRasterLayer = new RasterLayerClass();
pOutRasterLayer.Name = strOutFileName;
if (radioDegree.Checked == true)
{
pGeoDs = pRasterSurfaceOp.Slope(pInRaster as IGeoDataset, esriGeoAnalysisSlopeEnum.esriGeoAnalysisSlopeDegrees, ref objZFactor);
}
else
{
pGeoDs = pRasterSurfaceOp.Slope(pInRaster as IGeoDataset, esriGeoAnalysisSlopeEnum.esriGeoAnalysisSlopePercentrise, ref objZFactor);
}
IRaster pOutRaster = (IRaster)pGeoDs;
pOutRasterLayer.CreateFromRaster(pOutRaster);
pOutRasterLayer.Name = strOutFileName;
IWorkspaceFactory pWSF = new RasterWorkspaceFactoryClass();
IWorkspace pRWS = pWSF.OpenFromFile(strOutDir, 0);
IRasterBandCollection pRasBandCol = (IRasterBandCollection)pGeoDs;
pRasBandCol.SaveAs(strOutFileName, pRWS, "GRID");//"IMAGINE Image"
pOutRasterLayer = UtilityFunction.SetStretchRenderer(pOutRasterLayer.Raster);
pOutRasterLayer.Name = strOutFileName;
pMap.AddLayer(pOutRasterLayer);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
static void Mosaic(IRasterCatalog rasterCatalog)
{
try
{
//Mosaics all rasters in the raster catalog to an output raster dataset
IMosaicRaster mosaicRaster = new MosaicRasterClass();
mosaicRaster.RasterCatalog = rasterCatalog;
//Set mosaicking options, you may not need to set these for your data
mosaicRaster.MosaicColormapMode = rstMosaicColormapMode.MM_MATCH;
mosaicRaster.MosaicOperatorType = rstMosaicOperatorType.MT_LAST;
//Open output workspace
IWorkspaceFactory workspaceFactory = new RasterWorkspaceFactoryClass();
IWorkspace workspace = workspaceFactory.OpenFromFile(outputFolder, 0);
//Save out to a target raster dataset
//It can be saved to TIFF, IMG, GRID, BMP, GIF, JPEG2000, JPEG, Geodatabase, ect.
ISaveAs saveas = (ISaveAs)mosaicRaster;
saveas.SaveAs(outputName, workspace, "TIFF");
}
catch (Exception exc)
{
Console.WriteLine(exc.Message);
}
}
