[Geomoose-users] Question about polygon queries

[Dan Little]

Is this just a type of select query using a drawn polygon? If so, I thought that was demonstrated in the demo...


----- Original Message ----
> From: Brent Fraser <bfraser at geoanalytic.com>
> To: Sacha Black <sacha.black at gmail.com>
> Cc: geomoose-users at lists.sourceforge.net
> Sent: Sun, March 14, 2010 8:58:37 PM
> Subject: Re: [Geomoose-users] Question about polygon queries
> 
> Sacha,

  As far as I know, Geomoose has no capability to do 
> this.  While there
are some tools in Geomoose to draw a polygon, you 
> would need to write
some server-side scripting (for example, in PHP) to take 
> the drawn
polygon and do an Intersection on the soils layer, possibly using 
> the
OGR_G_Intersection function in GDAL's OGR API (although I'm not 
> sure
that function is available through MS4W's OGR PHP library).

Best 
> Regards,
Brent Fraser

> I have a soils layer and I can use Geomoose 
> information tool to query
> (by point or rectangle) a soil polygon or 
> polygons to get the soil
> types. I would like to find out if it is 
> possible to draw an arbitrary
> (non-rectangular) polygon and use that 
> polygon to get a list of the
> sail types, and the area of each type that 
> falss inside my custom
> polygon.
>
> I know how to construct 
> the queries I need to run in PostGIS, but what
> I don't know how to do is 
> how to draw & pass the custom query area
> from GeoMoose to PostGIS. 
> Is this currently possible? Where would I
> look if I were trying to add 
> this functionality?
>
> thanks for any suggestions,
>
> 
> Sacha
>
> 
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