Arcgis中将栅格数据导出成Txt格式
print?IWorkspaceFactory wf = new RasterWorkspaceFactory();
IWorkspace ws = wf.OpenFromFile(path, 0);
IRasterWorkspace rastWork = (IRasterWorkspace)ws;
IRasterDataset3 rds =(IRasterDataset3) rastWork.OpenRasterDataset(tmp+"2.img");
IRasterBandCollection rasterbands = (IRasterBandCollection)rds;
IRaster raster = rds.CreateFullRaster();
RasterToText2(raster, path + "\\123.txt");
private void RasterToText2(IRaster raster, string txtFile)
{
var datas = RasterArray(raster);
StreamWriter sw = new StreamWriter(txtFile, false, Encoding.UTF8);
for (int i = 0; i < datas.GetLength(0); i++)
{
for (int j = 0; j < datas.GetLength(1); j++)
{
sw.Write(datas.GetValue(i, j).ToString() + " ");
}
sw.WriteLine();
}
sw.Close();
}
public static System.Array RasterArray(IRaster raster)
{
IRasterProps props = (IRasterProps)raster;
//novalue = props.NoDataValue;
IPnt pBlockSize = new PntClass();
pBlockSize.SetCoords((double)props.Width, (double)props.Height);
IRaster2 raster2 = (IRaster2)raster;
IPixelBlock pixelBlock = raster2.CreateCursorEx(pBlockSize).PixelBlock;
pBlockSize.SetCoords(0.0, 0.0);
raster.Read(pBlockSize, pixelBlock);
IPixelBlock3 block2 = (IPixelBlock3)pixelBlock;
return (System.Array)block2.get_PixelData(0);
}
IWorkspaceFactory wf = new RasterWorkspaceFactory();
IWorkspace ws = wf.OpenFromFile(path, 0);
IRasterWorkspace rastWork = (IRasterWorkspace)ws;
IRasterDataset3 rds =(IRasterDataset3) rastWork.OpenRasterDataset(tmp+"2.img");
IRasterBandCollection rasterbands = (IRasterBandCollection)rds;
IRaster raster = rds.CreateFullRaster();
RasterToText2(raster, path + "\\123.txt");
private void RasterToText2(IRaster raster, string txtFile)
{
var datas = RasterArray(raster);
StreamWriter sw = new StreamWriter(txtFile, false, Encoding.UTF8);
for (int i = 0; i < datas.GetLength(0); i++)
{
for (int j = 0; j < datas.GetLength(1); j++)
{
sw.Write(datas.GetValue(i, j).ToString() + " ");
}
sw.WriteLine();
}
sw.Close();
}
public static System.Array RasterArray(IRaster raster)
{
IRasterProps props = (IRasterProps)raster;
//novalue = props.NoDataValue;
IPnt pBlockSize = new PntClass();
pBlockSize.SetCoords((double)props.Width, (double)props.Height);
IRaster2 raster2 = (IRaster2)raster;
IPixelBlock pixelBlock = raster2.CreateCursorEx(pBlockSize).PixelBlock;
pBlockSize.SetCoords(0.0, 0.0);
raster.Read(pBlockSize, pixelBlock);
IPixelBlock3 block2 = (IPixelBlock3)pixelBlock;
return (System.Array)block2.get_PixelData(0);
}
补充:软件开发 , C# ,