[Gvsig_english] problems with spatial selection

[Sergio Clark]

With both layers loaded in the ToC, follow these steps:

1. Put Active your Polygon layer. Open its atribute table and select all 
the elements inside (Shift button could help you). Close the table. You 
should see all the polygons selected in the view.
2. Select (put active) in the ToC your Points layer.
3. Open tool "Select by layer" (in View menu). Here, choose elements 
from your Active layer (points) which *"are contained in"* SELECTED 
elements of the layer: *"your polygon layer"* (if you've not selected 
previously any polygonal element (step 1), no point will be selected at 
the end).
4. Press New set. After a few moments (depending your layers weight) you 
should see in the View the points you are looking for, with a different 
color.

Please, tell us if it works,

Regards!

Sergio.


G. Allegri escribió:
> This is the procedure I've done:
>
>  - Made the polygon and the point layers active
>  - Selected the polygon layer (the "mask" of my selection)
>  - Opened the selection tool, set "contained in" and selected the 
> polygon layer
>
> As I push the New set, Add set, etc. the tool window remains open and 
> nothing happens...
>
> 2007/12/17, Sergio Clark <sergio.clark at iver.es 
> <mailto:sergio.clark at iver.es>>:
>
>     Hi Giovanni,
>
>     I think the problem is that you have not selected any element of the
>     polygon layer. You should do that (in the view or using the shp table)
>     before using the "Selection by layer", because it works with the
>     "selected elements of the layer..".
>
>     So, first select all the geometries (or those that interest you)
>     in your
>     polygon layer. After that use the "Selection by layer" as you have
>     done.
>
>     I hope this helps you.
>
>     Regards,
>
>     Sergio.
>
>     --
>
>     Sergio Clark
>     Equipo gvSIG
>     IVER T.I., S.A.
>     www.iver.es <http://www.iver.es>
>     www.gvsig.com <http://www.gvsig.com>
>
>
>
>
>     G. Allegri escribió:
>     > Hello everyone.
>     > I'm using gvSIG 1.1. I need to make a spatial selection of a
>     layer of
>     > points falling inside a certain polygon layer. I've used the
>     > "Selection by layer", having previously selected the point layer and
>     > made it active. The I've choosed "are contained in" (translating
>     from
>     > italian) and I've selected the polygon layer... and nothing
>     seems to
>     > happen neither with "Add set" nor all the other options.
>     > Am I using a wrong procedure?
>     >
>     > Thanks for the support,
>     > Giovanni
>     >
>     ------------------------------------------------------------------------
>
>     >
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-- 

Sergio Clark
Equipo gvSIG
IVER T.I., S.A.
www.iver.es
www.gvsig.com


Este mensaje y sus archivos son confidenciales. No está permitida su reproducción o distribución sin la autorización expresa de "IVER Tecnologías de la Información". Si usted no es el destinatario previsto, queda desautorizado cualquier uso, acceso o copia de este mensaje. Si ha recibido este mensaje por error, por favor bórrelo e infórmenos por esta misma vía.