Hi, I have few questions regarding GDAL tiling and overviews.
1) Is there any In build direct function in GDAL from where i can set the size of the tiles(raster block size). 2)I an facing an strange situation. I have an TIFF image, and I am trying to read it block by block using ReadBlock(). When i read block from the band of the original dataset(GDALDataset I get when i call GDALOpen() ), I get a tile which is of size Width X 1 but if i create overviews and then call ReadBlock() on the band extracted from the first overview i get square tiles(Blocks). Can any body tell me why is this happening, Is there any way of getting square tiles of same size irrespective of whether i call ReadBlock() on original Dataset or on the overview level. Thanks and regards, Akhy Hückelheim
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