I added the following to the end of the Create method in
frmts/northwood/grddataset.cpp:
vsi_l_offset nFileSize = 1024 + nXSize * nYSize * 2;
if (VSIFTruncateL(poDS->fp, nFileSize) != 0) {
CPLError(CE_Failure, CPLE_FileIO,
"Failed to allocate space for GRD file");
delete poDS;
return NULL;
}
poDS->FlushCache(); // Write the header to disk.
Unfortunately still receiving the error. I wonder if it would be better if I
explicitly write the zeros with VSIFWriteL?
--
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