[postgis-devel] length{,2d,3d}

[Martin Daly]

Mark,

> Sorry I obviously didn't ask my question in the right way; 
> what I was looking for was confirmation that GEOS could do 
> this transformation, i.e. does GEOS do the 3D <-> 2.5D 
> conversion according to the spec, or does it only accept 2D 
> coordinates?

I'm no GEOS expert (quite the opposite); so your guess is as good as
mine I'm afraid.

Regards,
Martin