Polygon buffer?

[Aaron Koning]

The way I approach this is to use MapServer to get the coordinates (or an id
of a PostGIS feature) interactively and then connect to PostGIS directly
with PHP and pull the information out using their well developed functions,
such as:
  - PolyFromText(...)
  - Buffer(...)
  - Intersect(...)

This is one method, there are many others.

Aaron

On 12/8/06, Sievers, Jason <jsievers at co.linn.or.us> wrote:
>
>  I want to perform a buffer query around a polygon.  I would select a
> polygon, then get features from another layer who are within a specified
> distance of the outside edge of my selected polygon.  The only queries
> involving buffers I see in the documentation are on points.  I have looked
> briefly at PostGIS and GRASS documentation.  Is the solution possible in
> MapServer? or should I investigate PostGIS, GRASS, or other tools?
>
> Thanks for any help.
>
> Jason Sievers
> jsievers at co.linn.or.us
>



-- 
+-------------------------------------------------
|  Aaron Koning
|  Information Technologist
|  Prince George, BC, Canada.
+-------------------------------------------------
|  Flexible Internet Spatial Template:
|       http://fist-mapping.org
+-------------------------------------------------
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