[postgis-users] What is SRID 999155

[Paul Norman]

SRIDs above 999000 are reserved by PostGIS. The main use I've seen for 
them is with _ST_BestSRID as part of area or length calculations. Most 
of them are equivalent to EPSG codes that are normally in 
spatial_ref_sys. For example, 999000 is equivalent to EPSG:3395, but the 
latter may not be present on a system. You can see what they are in 
https://git.osgeo.org/gitea/postgis/postgis/src/branch/master/libpgcommon/lwgeom_transform.h 
and the proj4 text is in 
https://git.osgeo.org/gitea/postgis/postgis/src/branch/master/libpgcommon/lwgeom_transform.c.


On 2020-10-02 6:17 a.m., Imre Samu wrote:
> >> PostGIS references SRID 999155.
> > That feels like a bug.  File and line number?
>
> As I see the "not public"  _ST_BestSRID  return this.
>
> select _ST_BestSRID(ST_Point(147,-60));
>  _st_bestsrid
> --------------
>        999155
> (1 row)
>
> ( via https://github.com/postgis/postgis/search?q=999155 )
>
> Imre
>
>
>
> Greg Troxel <gdt at lexort.com <mailto:gdt at lexort.com>> ezt írta 
> (időpont: 2020. okt. 2., P, 13:22):
>
>
>     Simon G Greener <simon at spatialdbadvisor.com
>     <mailto:simon at spatialdbadvisor.com>> writes:
>
>     >
>     > PostGIS references SRID 999155.
>
>     That feels like a bug.  File and line number?
>
>     > What is it? It is not listed on reference.org
>     <http://reference.org>.
>
>     I find no trace of it.
>     _______________________________________________
>     postgis-users mailing list
>     postgis-users at lists.osgeo.org <mailto:postgis-users at lists.osgeo.org>
>     https://lists.osgeo.org/mailman/listinfo/postgis-users
>
>
> _______________________________________________
> postgis-users mailing list
> postgis-users at lists.osgeo.org
> https://lists.osgeo.org/mailman/listinfo/postgis-users
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/postgis-users/attachments/20201002/da8c206a/attachment.html>