[postgis-users] ST_Mapalgebraexpr requires same alignment

Paul Ramsey pramsey at opengeo.org
Fri Mar 23 09:12:44 PDT 2012

On Fri, Mar 23, 2012 at 8:16 AM, Jose Carlos Martinez
<jomarlla at cgf.upv.es> wrote:

> ummm...there is some plans about future releases to work with not alignment
> rasters? to be honest I think this is a limitation in order to to carry out
> a normal raster spatial analysis. :-(. I will try to use postgis raster
> without this feature though.

I don't think it's unreasonable to expect that inputs to mapalgebras
be on the same alignment. I do thing that utilities for re-sampling
whole tables need to exist to that it's possible to run full analyses
inside the database, but I think requiring alignment for mapalgebra
will solve more problems (in terms of people getting the results they
"expect") than trying to plaster over it with automagical code.


More information about the postgis-users mailing list