GEOS integration questions

[Mark Adams]

This is a timely discussion for me. I urgently need to provide support for
a "contains" query specifically in an application I am developing (other
GEOS supported operators would be great, but the contains query is
critical). What would it take to add this functionality into mapserver and
mapscript? (We use PHP Mapscript here.)

Thanks.

------------------------------
Mark Adams
Senior Analyst & Project Manager
Cuesta Systems (DPRA Canada)
5230 South Service Road
Burlington, ON L7L 5K2
Phone: 905-333-4544 x14
Fax: 905-333-0455
Email: mark.adams at dpra.com


On Thu, 19 Jan 2006 10:34:39 -0600, Steve Lime
<steve.lime at DNR.STATE.MN.US> wrote:

>The only GEOS methods exposed are convex hull and a buffer. I didn't
>want to go nuts until I received some feedback about the usefulness of
>that type of functionality. They are not difficult to add. Are there
specific
>operators you are interested in and would be willing to test? Let me know
>if so and we can work in the 4.9 branch.
>
>A full list of operators supported by GEOS is available at
geos.refractions.net.
>
>As for mapfile integration. My idea was to expose a few operators that
>work of a single shape (e.g. buffer, convex hull, etc...) via the
PROCESSING
>block that is currently used for defining raster operations. That way you
>could basically apply a GEOS operator to all features of a particular
layer as
>they are read from the data source- for any data source.
>
>Steve
>
>>>> listuser HH <listuser at HERZSYS.DE> 01/19/06 5:49 AM >>>
>Hello all,
>
>I would like to know how much of the GEOS functions (and which) are
>already available in the MapScript API and in PHP MapScript. I found
>only intersects and cointains for both. The shapeObj in PHP Mapscript
>also has buffer and convexhull.
>
>Can someone tell me what the plans for including more of the GEOS
>functions are?
>
>Are there plans to use some functions (i.e. buffer) directly in the
mapfile?
>
>Are there any docs that give some more information?
>
>Regards
>
>Norbert