Combining Polygons

[Dylan Beaudette]

Actually, I would be interested in knowing if there is some way to do with
opensource software, what the ESRI world calls a "Dissolve". i.e. merge all
contiguous polygons with a common key into a single polygon...

any ideas?

Thanks,

Dylan

On Tuesday 19 October 2004 02:32 pm, Eric Katherman wrote:
> Please disregard this, although it would be a nice thing to know, my speed
> problem was solved with the previous post (Speeding Up Queries).
>
> Thanks Paul!
>
> Eric
>
> > As a possible solution to my previous speed post, it would seem to make
> > sense if I could take say all of the parcels in one city block area and
> > combine them into one parcel.  Does anybody have a suggestion as to how I
> > could approach that, the adjacent polygons surely have some common "key"
> > which could be used.
> >
> > Eric