[Qgis-user] Invalid geometry

[Sergio A Estay]

Hi Everybody and Ramon,

 From the last actualization from QGIS 1.7.4 to 1.8.0 all my shp files 
have "invalid geometry". For that reason now I can't make intersection 
between vector layers. Previous to the actualization everything works 
fine (using the same vector files).

As a polygons shp files I use this cover:

http://www.mappinghacks.com/data/TM_WORLD_BORDERS_SIMPL-0.2.zip

As a points vector layer I use the attached shp file.

If I try to make the intersection from Qgis/vectorial/geoprocess menu I 
obtain "invalid geometry", but If I install the sextante python 
complement, open the Toolbox and run intersection from the ftools 
submenu everything is OK.

Any advice will be very useful

Thanks

Sergio

-- 
Sergio A. Estay
Inst. Ciencias Ambientales y Evolutivas
Universidad Austral de Chile
Casilla 567, Valdivia, Chile
Phone: 5663-293913
http://www.ciencias.uach.cl/instituto/ciencias_ambientales_evolutivas/academicos/sergio-estay.php

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