[Gvsig_english] WFS, Sextante

[Agustin Diez Castillo]

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
> 
> 
> 
> 
> 
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