/// <summary>
/// Occurs when this command is clicked
/// </summary>
public override void OnClick()
{
// TODO: Add CmdRasterResample.OnClick implementation
IMapControl2 pMapCtr = (((IToolbarControl)m_hookHelper.Hook).Buddy) as IMapControl2;
if (pMapCtr != null)
{
m_frmRasterResample = new FrmRasterResample();
IRasterProps pRasterProps = pRasterLayer.Raster as IRasterProps;
m_frmRasterResample.Cellsize = pRasterProps.MeanCellSize().X;
if (m_frmRasterResample.ShowDialog() == DialogResult.OK)
{
IGeoDataset pGeodataset = pRasterLayer.Raster as IGeoDataset;
IRasterGeometryProc pRasterGeometryProc = new RasterGeometryProcClass();
ITransformationOp pTransOP = new RasterTransformationOpClass();
string name = pRasterLayer.Name;
if (m_frmRasterResample.resampleType == 0)
{
IGeoDataset pGeodataset2 = pTransOP.Resample(pGeodataset, m_frmRasterResample.Cellsize, esriGeoAnalysisResampleEnum.esriGeoAnalysisResampleNearest);
pRasterLayer.CreateFromDataset(pGeodataset2 as IRasterDataset);
pRasterLayer.Name = name;
}
if (m_frmRasterResample.resampleType == 1)
{
IGeoDataset pGeodataset2 = pTransOP.Resample(pGeodataset, m_frmRasterResample.Cellsize, esriGeoAnalysisResampleEnum.esriGeoAnalysisResampleBilinear);
pRasterLayer.CreateFromDataset(pGeodataset2 as IRasterDataset);
pRasterLayer.Name = name;
}
if (m_frmRasterResample.resampleType == 2)
{
IGeoDataset pGeodataset2 = pTransOP.Resample(pGeodataset, m_frmRasterResample.Cellsize, esriGeoAnalysisResampleEnum.esriGeoAnalysisResampleCubic);
pRasterLayer.CreateFromDataset(pGeodataset2 as IRasterDataset);
pRasterLayer.Name = name;
}
pMapCtr.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewAll, null, null);
}
}
}
//采用另一种方法实现互换XY，不会改变影像的分辨率
public bool NorthEastToEastNorth(IRasterLayer pRasterLayer, string szFilename)//坐标系x,y变换
{
if (pRasterLayer == null || szFilename == null)
{
return(false);
}
try
{
ITransformationOp dstTrans = new RasterTransformationOpClass();
IRasterAnalysisEnvironment pDstAnalysisEnvironment = dstTrans as IRasterAnalysisEnvironment;
if (pDstAnalysisEnvironment == null)
{
return(false);
}
//设置分辨率
IRaster2 pRaster2 = pRasterLayer.Raster as IRaster2;
IRasterProps pProps = pRaster2 as IRasterProps;
double dbCellSizeX = pProps.MeanCellSize().X;
double dbCellSizeY = pProps.MeanCellSize().Y;
double dbCellSizeMean = (dbCellSizeX + dbCellSizeY) / 2;
//pDstAnalysisEnvironment.SetCellSize(esriRasterEnvSettingEnum.esriRasterEnvValue, dbCellSizeMean);
//定义原始数据集和目标数据集
IGeoDataset pSrcGeoDataset = pRasterLayer.Raster as IGeoDataset;
IGeoDataset pDstGeoDataset = null;
IGeoDataset pTmpGeoDataset = null;
//顺时针旋转90度
IPoint pt = new PointClass();
pt.X = 0;
pt.Y = 0;
pTmpGeoDataset = dstTrans.Rotate(pSrcGeoDataset, esriGeoAnalysisResampleEnum.esriGeoAnalysisResampleCubic, 90, pt);
//pDstGeoDataset = pTmpGeoDataset;
//水平旋转
pSrcGeoDataset = dstTrans.Flip(pTmpGeoDataset);
//由于翻转是以图像中心为界，所以要加上偏移量
IEnvelope pExtent = pSrcGeoDataset.Extent;
double dbCenterY = (pExtent.UpperLeft.Y + pExtent.LowerRight.Y) / 2;
double dbDeltaX = 0;
double dbDeltaY = -dbCenterY * 2;
//pDstGeoDataset = dstTrans.Flip(pTmpGeoDataset);
pDstGeoDataset = dstTrans.Shift(pSrcGeoDataset, dbDeltaX, dbDeltaY, null);
if (pDstGeoDataset == null)
{
return(false);
}
IRasterLayer pLayer = new RasterLayerClass();
pLayer.CreateFromDataset(pDstGeoDataset as IRasterDataset);
IWorkspaceFactory workspaceFactory = new RasterWorkspaceFactoryClass();
IWorkspace inmemWor = workspaceFactory.OpenFromFile(System.IO.Path.GetDirectoryName(szFilename), 0);
ISaveAs2 sa = pDstGeoDataset as ISaveAs2;
//IRaster2 pR2 = ((IRasterDataset3)pDstGeoDataset).CreateDefaultRaster() as IRaster2;
IRaster2 pR2 = pLayer.Raster as IRaster2;
IRasterEdit pRe = pR2 as IRasterEdit;
//pRe.Refresh();
// sa = ((IRasterDataset3)pDstGeoDataset).CreateDefaultRaster() as ISaveAs2;
sa = pRe as ISaveAs2;
if (sa != null)
{
sa.SaveAs(System.IO.Path.GetFileName(szFilename), inmemWor, "TIFF");
//sa.SaveAsRasterDataset()
pRe.Refresh();
System.Runtime.InteropServices.Marshal.ReleaseComObject(pRe);
(pDstGeoDataset as IRasterDataset3).Refresh();
}
IRasterEdit pRasterEdit = pRaster2 as IRasterEdit;
System.Runtime.InteropServices.Marshal.ReleaseComObject(pRasterEdit);
return(true);
}
catch (System.Exception ex)
{
MessageBox.Show(ex.Message);
return(false);
}
}
