[gdal-dev] Re: several No data value

2010-12-10 Thread ludovic
Thanks Frank for these remarks. I work on pds driver (in fact the subdriver ISIS2). I agree with you that some folks would want to distinguish the various kinds of nodata values. And it's the reason i would like the default behaviour is we have various no data value but we can add a flag option

Re: [gdal-dev] Re: several No data value

2010-12-08 Thread Frank Warmerdam
On 10-12-06 09:53 AM, ludovic wrote: Frank, thanks for your response : On 3 déc, 22:05, Frank Warmerdamwarmer...@pobox.com wrote: GDAL only supports single nodata values as part of the data model. You can add arbitrary metadata describing other nodata values, but generally GDAL itself and

[gdal-dev] Re: several No data value

2010-12-06 Thread ludovic
Frank, thanks for your response : On 3 déc, 22:05, Frank Warmerdam warmer...@pobox.com wrote: GDAL only supports single nodata values as part of the data model. You can add arbitrary metadata describing other nodata values, but generally GDAL itself and other client software won't realize