[Gvsig_english] Question about Geoprocess toolbox: Topology errors correction in line vector layer

[Alvaro Zabala]

Could you send me the problematic layer (if its file based)

Im not sure if self-intersecting lines are corrected by this geoprocess
(topology project will do that sure).

Best regards!

2008/1/18, Luigi Castro Cardeles <luigi.cardeles at gmail.com>:
>
> hello,
>
> topology errors correction in line vector layer. added gvsig 1.1.1 i
> think.
>
> i want to break a line segment every time it intersect with another line.
> the problem is that line self intersect at some point and i want to break it
> at that point.
> is the normal behavior of that geoprocess does nothing when a unique line
> is self-intersect?
> []'s and thanks
>
>
> 2008/1/18, Alvaro Zabala < azabala at gmail.com>:
> >
> > What geoprocess are you running?
> >
> > gvSIG uses JTS to do primitive topology and computational geometry
> > operations.
> >
> > JTS data model allows self-intersecting polylines, so its not a problem.
> > Self-intersecting polygons are not allowed, so geoprocesses ignores these
> > ocurrences.
> >
> > In current gvSIG versions, overlay geoprocesses only works with polygon
> > layers. In next gvSIG version, overlay geoprocesses also works with polygon
> > layers.
> >
> > Finally, this year (second or third quarter) a new gvsig' s topology
> > extension will be released. This extension allows to ensure correctness of
> > spatial data by applying topology rules constraints.
> >
> > Best regards.
> >
> > 2008/1/18, Luigi Castro Cardeles <luigi.cardeles at gmail.com >:
> > >
> > > Hi List,
> > > first of all sorry about the poor english, so please be patience :D
> > >
> > > i am doing some tests and i see that if a unique line is
> > > self-intersect the geoprocess does nothing. Is that right?
> > >
> > >
> > > --
> > > Luigi Castro Cardeles
> > > _______________________________________________
> > > Gvsig_internacional mailing list
> > > Gvsig_internacional at runas.cap.gva.es
> > > http://runas.cap.gva.es/mailman/listinfo/gvsig_internacional
> > >
> > >
> >
> >
> > --
> > Alvaro Zabala Ordóñez
> > Tlf: 657235082
> > _______________________________________________
> > Gvsig_internacional mailing list
> > Gvsig_internacional at runas.cap.gva.es
> > http://runas.cap.gva.es/mailman/listinfo/gvsig_internacional
> >
> >
>
>
> --
> Luigi Castro Cardeles
> _______________________________________________
> Gvsig_internacional mailing list
> Gvsig_internacional at runas.cap.gva.es
> http://runas.cap.gva.es/mailman/listinfo/gvsig_internacional
>
>


-- 
Alvaro Zabala Ordóñez
Tlf: 657235082
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