public static IEnumerable <IPixelBlock> PixelBlocks(this IRaster raster)
{
var cursor = raster.CreateCursor();
while (cursor.Next())
{
yield return(cursor.PixelBlock);
}
}
public void CanGetRasterFromMosaicDataset()
{
IWorkspace workspace = TestUtils.OpenUserWorkspaceOracle();
IMosaicDataset dataset = DatasetUtils.OpenMosaicDataset(workspace,
"TOPGIS_TLM.TLM_DTM_MOSAIC");
IRaster raster = ((IMosaicDataset3)dataset).GetRaster(string.Empty);
Assert.NotNull(dataset);
IRasterCursor rasterCursor = raster.CreateCursor();
IPixelBlock rasterCursorPixelBlock = rasterCursor.PixelBlock;
Assert.NotNull(rasterCursorPixelBlock);
}
void GetRasterCursorDefault(IRaster pRaster)
{
IRasterCursor pRasterCursor = pRaster.CreateCursor();
while (pRasterCursor.Next())
{
IPixelBlock pPixBlock = pRasterCursor.PixelBlock;
int W = pPixBlock.Width;
//这个W也就是整个栅格数据记得宽度
int H = pPixBlock.Height;
}
}