Doh! Thank you, I will fix that and see what happens. I suspect that solves the problem! Stared at it too long I guess!
Thanks, Derek ________________________________ From: Chaitanya kumar CH [chaitanya...@gmail.com] Sent: Tuesday, July 19, 2011 11:30 PM To: Cole, Derek Cc: gdal-dev@lists.osgeo.org Subject: Re: [gdal-dev] Unable to write in subdataset Derek, Why are you trying to write to the dataset after opening it as GA_ReadOnly? On Wed, Jul 20, 2011 at 4:25 AM, Cole, Derek <dc...@integrity-apps.com<mailto:dc...@integrity-apps.com>> wrote: Hello, I have created an image with multiple subdatasets so that I may store two images in my NITF. the way I am getting the data set of the second image is like so: char **papszSubdatasets = GDALGetMetadata(sharpenedDS,"SUBDATASETS"); eraserDS = (GDALDataset *) GDALOpenShared(CSLFetchNameValue(papszSubdatasets, "SUBDATASET_2_NAME") , GA_ReadOnly ); eraserBand = eraserDS->GetRasterBand(1); (this is after checking to make sure that the first DS has more than one subdataset) According to CPL_DEBUG, the GDALOpenShared works correctly and opens the file as NITF. However, at some points in my code, I am getting this thrown to console presumably where I am using the band's RasterIO method to GF_Write. ERROR 3: Unable to write 2097152 byte block from 8302649793. ERROR 1: An error occured while writing a dirty block What do these error messages mean? I mam getting a ton of them. the block is the same number of bytes, but the "from" changes in each instance of the error. _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org<mailto:gdal-dev@lists.osgeo.org> http://lists.osgeo.org/mailman/listinfo/gdal-dev -- Best regards, Chaitanya kumar CH. +91-9494447584 17.2416N 80.1426E
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