[Gdal-dev] [newbie] ogr projection or proj.4?

Frank Warmerdam warmerdam at pobox.com
Tue Nov 8 15:38:40 EST 2005


On 11/8/05, Tore Halset <halset at pvv.ntnu.no> wrote:
> Hello.
>
> I am creating a simple map viewer using gdal and ogr. I have also
> created another vector layer that does not use gdal or ogr.
>
> I am currently using proj.4 for my projection class, but consider
> moving to ogr. I guess ogr projection are build upon proj.4. Will
> things be less complicated if I use ogr projection? And will I get
> more features that I might need? What do you gurus think?

Tore,

The major benefit of moving to the OGRCoordinateTransformation
and OGRSpatialReference instead of direct use of PROJ.4 is all
the options the OGRSpatialReference provides to translate
coordinate system between different formats.

Best regards,
--
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I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | Geospatial Programmer for Rent




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