[GRASS-user] create 3d plane from vector lines

"Sören Gebbert" soerengebbert at gmx.de
Wed Sep 10 03:54:07 EDT 2008


Hi Carlos,
how about using v.delaunay? 
If you have two lines for each fault, you can triangulate the space in between.
But im not sure if this works with vertical lines. 
If you export those lines to VTK, you can triangulate vertical planes
with the VTK delaunay triangulator in ParaView.

Soeren

-------- Original-Nachricht --------
> Datum: Tue, 9 Sep 2008 23:32:37 -0300
> Von: "Carlos \\"Guâno\\" Grohmann" <carlos.grohmann at gmail.com>
> An: 
> CC: grass-user <grass-user at lists.osgeo.org>
> Betreff: Re: [GRASS-user] create 3d plane from vector lines

> Hello José.
> 
> v.surf.rst is not exactly what I want here, although I could duplicate
> my vector lines with different elevations and then interpolate the
> values to get _raster_ surfaces. I was thinking more in a v.extrude
> way, just that it currently extrude areas to form facets or shifts
> lines, but it doesn't create planes from line (AFAICT).
> 
> cheers
> 
> Carlos
> 
> 
> 
> On Tue, Sep 9, 2008 at 22:59, José María Michia
> <jose.maria.michia at gmail.com> wrote:
> > Hi Carlos. You can use v.surf.rst. Description (from command help):
> >
> > "Spatial approximation and topographic analysis from given ... isoline
> data
> > in vector format to floating point raster format using regularized
> spline
> > with tension."
> >
> > Basic usage (remember to adjust region settings):
> >
> > v.surf.rst input=contour layer=0 elev=surface
> >
> > Where:
> >
> > contour : name of the map containing your vector lines (iso lines or
> level
> > contours).
> > surface : name of the raster map, obtained from interpolation of the
> vector
> > lines.
> >
> > More info here:
> > http://grass.itc.it/grass62/manuals/html62_user/v.surf.rst.html
> >
> > I hope that this help you.
> >
> > José
> > Saludos (sorry for my bad english)
> >
> > 2008/9/9 Carlos Guâno Grohmann <carlos.grohmann at gmail.com>
> >>
> >> Hi all,
> >>
> >> I'm stuck here, trying to create 3d vertical surfaces from 2d vector
> >> lines (to represent faults in nviz). hints?
> >>
> >> TIA
> >>
> >> Carlos
> >>
> >>
> >>
> >> --
> >> +-----------------------------------------------------------+
> >>  Carlos Henrique Grohmann - Guano
> >>  Geologist M.Sc - Doctorate Student at IGc-USP - Brazil
> >> Linux User #89721 - carlos dot grohmann at gmail dot com
> >> +-----------------------------------------------------------+
> >> _________________
> >> "Good morning, doctors. I have taken the liberty of removing Windows
> >> 95 from my hard drive."
> >> --The winning entry in a "What were HAL's first words" contest judged
> >> by 2001: A SPACE ODYSSEY creator Arthur C. Clarke
> >>
> >> Can't stop the signal.
> >> _______________________________________________
> >> grass-user mailing list
> >> grass-user at lists.osgeo.org
> >> http://lists.osgeo.org/mailman/listinfo/grass-user
> >
> >
> 
> 
> 
> -- 
> +-----------------------------------------------------------+
>  Carlos Henrique Grohmann - Guano
>  Geologist M.Sc - Doctorate Student at IGc-USP - Brazil
> Linux User #89721 - carlos dot grohmann at gmail dot com
> +-----------------------------------------------------------+
> _________________
> "Good morning, doctors. I have taken the liberty of removing Windows
> 95 from my hard drive."
> --The winning entry in a "What were HAL's first words" contest judged
> by 2001: A SPACE ODYSSEY creator Arthur C. Clarke
> 
> Can't stop the signal.
> _______________________________________________
> grass-user mailing list
> grass-user at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/grass-user

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