querybyshape and contain

FX GAMOY fx.gamoy at GEOMATIKA.FR
Wed Dec 14 13:41:20 EST 2005


Thanks steve.

i think the better and easiest way to get this is to use postgis with geos..
i am going to install postgis in the next day.

This solution seems to be more powerfull to enable spatial queries..
so i would like to pursue... of course :-)

fx 



Le Mercredi 14 Décembre 2005 03:30, Steve Lime a écrit :
> This is not possible with the given code. PostGIS gives you this
> functionality. It is pretty easy to add though- if using MapScript. All
> we'd need to do would be to expose a couple of additional GEOS operators
> (like contains) and you could do something like:
>
> Step 1: query by rect (using the query shape extent)
> Step 2: for each result feature actually test using the contains operator
>
> Let me know if you'd like to pursue...
>
> Steve
>
> >>> Fx Gamoy <fx.gamoy at GEOMATIKA.FR> 12/13/05 11:20 AM >>>
>
> Hello everybody
> i would like to query a layer with a shape in order to get all the objs
> contained in the shape
>
> When i use querybyshape, i get all the objs intersected by the shape.
> So some objs are not selected.
>
> Is it a way to get a spatial contain query instead of an intersect one?
>
> thanks for your help
> fx
>
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