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>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 > http://lists.osgeo.org/mailman/listinfo/gdal-dev > -- Best regards, Chaitanya kumar CH. +91-9494447584 17.2416N 80.1426E
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