Re: [gdal-dev] interpretation of nodata in OGR libraries

2008-10-07 Thread Dylan Beaudette
On Tuesday 07 October 2008, Frank Warmerdam wrote: > Dylan Beaudette wrote: > > Hi, > > > > I am not sure if this is a DBF issue, or something deeper in OGR, but > > there does not appear to be a mechanism for preserving 'nodata' or NULL > > values when exporting from GRASS to vector formats throug

Re: [gdal-dev] interpretation of nodata in OGR libraries

2008-10-07 Thread Frank Warmerdam
Dylan Beaudette wrote: Hi, I am not sure if this is a DBF issue, or something deeper in OGR, but there does not appear to be a mechanism for preserving 'nodata' or NULL values when exporting from GRASS to vector formats through v.out.ogr. ... It seems that on export via OGR there is some kind

[gdal-dev] interpretation of nodata in OGR libraries

2008-10-07 Thread Dylan Beaudette
Hi, I am not sure if this is a DBF issue, or something deeper in OGR, but there does not appear to be a mechanism for preserving 'nodata' or NULL values when exporting from GRASS to vector formats through v.out.ogr. Here is an example using the sample 'Spearfish' data within GRASS: Spearfish e