[postgis-users] View area

Sean M. Montague smontague at ATSDenver.com
Tue Feb 15 12:42:35 PST 2005


I'm using postgreSQL 8.0.1 win32 version and whichever postGIS comes
with it, 0.9.1 I think.  My input geometries are multi-part polygons
imported from a shape file.  Every state is its own multi-part poly,
regardless of the number of individual polys, at least as a shape file,
not sure how postGIS handles this.  I'm also not sure what GEOS I'm
using.  Is this an add-on installed separately?

--Sean

-----Original Message-----
From: postgis-users-bounces at postgis.refractions.net
[mailto:postgis-users-bounces at postgis.refractions.net] On Behalf Of
strk at refractions.net
Sent: Tuesday, February 15, 2005 1:33 PM
To: PostGIS Users Discussion
Subject: Re: [postgis-users] View area

On Tue, Feb 15, 2005 at 12:37:25PM -0700, Sean M. Montague wrote:
> I've investigated what the relationship of the points is to the
original
> poly layer, and they are not the vertices, at least not all of them.
> The original layer is the coast of south east Alaska with about 25
> islands.  The points may be some of the vertices perhaps, they do lie
on
> the coasts.  The summary() returns 556 "Object 0 is a POINT()" and 1
> "Object 0 is a LINESTRING() with 2 points".  The up side is, they at
> least lie within my bounding box.

It sounds as a bug to me. Which GEOS version are you using ?
What types are input geometries ?
Which postgis version ? postgresql ?
--strk;
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