[postgis-devel] short question

[Paul Ramsey]

No, bad idea. Empty geometries have a type. There's 'POLYGON EMPTY',
'LINESTRING EMPTY', etc, etc, etc.

P.

On Sat, Nov 21, 2009 at 2:04 PM, Nicklas Avén
<nicklas.aven at jordogskog.no> wrote:
> is type 0 for LWGEOM occupied by anything or could it be an idea to use it
> for empty geometries.
> Then it would be easy to create any emtpy geometry. Like a generic empty
> geometry.
>
> Or is there another way that I have missed.
>
> When I have identified the empty geometries, in shortestline and it buddies
> I need to communicate that an empty geometry should be returned and the
> datatype is LWLINE and LWPOINT for st_closestpoint. I'm tempted to just make
> an LWGEOM with type 0. Is it a bad idea.
>
> #define EMPTY 0
> #define POINTTYPE 1
> #define LINETYPE 2
> #define POLYGONTYPE 3
> and so on
>
> /Nicklas
> _______________________________________________
> postgis-devel mailing list
> postgis-devel at postgis.refractions.net
> http://postgis.refractions.net/mailman/listinfo/postgis-devel
>
>