[Geomoose-users] Question about polygon queries

[Brent Fraser]

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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