[gdal-dev] question with field name read from ogrinfo

[Frank Warmerdam]

Randy wrote:
> Hi Frank and list,
> 
>  I have a question about field name in OGR:
> 
> I read the “IHO transfer standard for digital hydrographic data 
> publication S-57 Edition 3.1-November 2000”,and it tells me that one 
> spatial record should have a “Record name” and its field name is 
> [RCNM].But in ogrinfo ,it gives me a field name-“NAME_RCNM”.
> 
> Then, I’d like to know if the ogrinfo’s writer change the field name or 
> it means the [NAME_RCNM] is on the new S-57 version while [RCNM] is just 
> on the old version(3.1 edition)?

Randy,

I always called this field NAME_RCNM so it isn't about what edition it is
from.  I believe it is named this because it is the RCNM extracted from
the NAME field of the feature (FSPT).  I presume it is used to lookup
the RCNM and RCID in the set of spatial records when composing the geometry
for the feature.

Best regards,
-- 
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I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
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and watch the world go round - Rush    | Geospatial Programmer for Rent