Hi Michał, In addition to Jukka's key point: nBufXSize=1, nBufYSize=691, appears to be backwards wrt: -outsize 691 1 Rob :) -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osgeo.org/pipermail/gdal-dev/attachments/20240829/b3f2bcf5/attachment.htm>