[Gvsig_english] WFS, Sextante

[Dietrich Schröder]

Agustin,
Yes, I've first had some doubts about my DEM. But then I tested it on some
none OS software, and I got the correct results for my height classes...
Thus I am quite sure that my input data is correct and clean.

Regards

Dietrich

-----Ursprüngliche Nachricht-----
Von: gvsig_internacional-bounces at listserv.gva.es
[mailto:gvsig_internacional-bounces at listserv.gva.es] Im Auftrag von Agustin
Diez Castillo
Gesendet: Mittwoch, 8. Juli 2009 13:08
An: Gvsig_internacional at listserv.gva.es
Betreff: Re: [Gvsig_english] WFS, Sextante

In the past I got some holes instance of overlapping after slope
reclassification, but by now I have decided that the
problem was in the original DTM raster. This is a guess but making some
basics stats on it I realized that the lowest
value was 0 being my DTM for an inland area, so I did a reclassification of
those zero values to null (this can be done
easily in sextante with the new document tab) and I was able to do slope,
slope reclassification and vectorization w/o
further troubles. So check your original dtm just in case.
Agustin


> Dietrich Schröder ha scritto:
> > 3) Using the vectorize tool for polygons from Sextante, I got some
> > problems for complex polygons, i.e. polygons with holes. For instance,
> > if you want to create from a DEM polygons with height classes, the lower
> > height classes of cause will contain the higher ones, so the lower
> > height classes should have holes. But my results don’t have any holes,
> > but they are overlapped by the other polygons. For a map it makes no
> > difference, but you can’t use these data for further analysis

> 
> Dietrich,
> which Sextante version are you using? I have reclassified a DTM in
> reference to some heigth classes and then I applied the Vectorize raster
> layer (polygons) tool: it works fine with the latest Sextante nightly
> build [1]. There's no trace of overlapping polygons.
> 
> Best regards,
> Antonio
> 
> [1] http://forge.osor.eu/plugins/wiki/index.php?Downloads&id=13&type=g
> 
> -- 
> Antonio Falciano
> http://www.linkedin.com/in/antoniofalciano
> 
> 
> 
> 
> 
> _______________________________________________
> Gvsig_internacional mailing list
> Gvsig_internacional at listserv.gva.es
> http://listserv.gva.es/cgi-bin/mailman/listinfo/gvsig_internacional
> 
> 





_______________________________________________
Gvsig_internacional mailing list
Gvsig_internacional at listserv.gva.es
http://listserv.gva.es/cgi-bin/mailman/listinfo/gvsig_internacional