id summary reporter owner description type status priority milestone component version severity resolution keywords cc 3057 Add ability to set NullCellValue for .ers files using ERMapper driver dougc warmerdam "The .ers NullCellValue header field can be read but not written by GDAL. Our application needed a way to set this. Since the GDAL NoDataValue methods are implemented per band and not by the driver, it seems like a driver option might be a good way to enable this capability. I implemented the code below in a private build and would like to suggest it for inclusion in GDAL. Based on existing .ers files written elsewhere that have NullCellValue set, I think it's best placed in ersdata.cpp after the CellType field written at line 1148 of rev 17119. Thanks for considering this. {{{ /* -------------------------------------------------------------------- */ /* Write the null cell value if supplied. */ /* -------------------------------------------------------------------- */ const char * pszNullCellValue = CSLFetchNameValue( papszOptions, ""NULLCELLVALUE"" ); if( pszNullCellValue ) { VSIFPrintfL( fpERS, ""\tNullCellValue\t= %s\n"", pszNullCellValue ); } }}} " enhancement closed normal default svn-trunk normal fixed