[postgis-users] Features and SRIDs

[Nicolas Ribot]

> Hi list,
>
> I am using PostGIS with my Desktop Client GIS OpenJUMP and receive the
> following message:
>
> java.lang.RuntimeException: org.postgresql.util.PSQLException: ERROR:
> Operation on two geometries with different SRIDs
>
> Could someone tell me what is occurring ?
>
> Sincerely...
>

As far as I remember, the Jump postgis driver considers that
geometries' SRID are always -1 (meaning no Spatial Reference System).

If your postgis geometries do have a SRID other than -1, then this error occurs.
To circumvent this problem, you could set geometries SRID to -1 before
working with jump, and restoring them to their actual value after the
work.
setSRID (geometry) will do the trick.

(I may be completely wrong :-)

Nicolas