[vtkusers] vtkPoints to vtkPolyData

[Syrkina Ekaterina]

thanks for the answers! I also found some old vtk-mail with a program to
create vtkPolyData (to visualize) from a set of point coordinates:
http://www.nabble.com/VTK-Point-Cloud-td14706577.html

best,
katya

> -----Original Message-----
> From: David E DeMarle [mailto:dave.demarle at kitware.com] 
> Sent: Thursday, February 19, 2009 9:26 PM
> To: Amy Squillacote
> Cc: Syrkina Ekaterina; VTK users group
> Subject: Re: [vtkusers] vtkPoints to vtkPolyData
> 
> And one way to do that is to apply a glyph filter.
> 
> On Thu, Feb 19, 2009 at 1:31 PM, Amy Squillacote 
> <amylists at gmail.com> wrote:
> > In order to "see" the points in ParaView, you would need to create a
> > vtkVertex cell for each point. In VTK, a "vertex" is a cell 
> (and will be
> > visible in ParaView); a "point" is just an (x, y, z) coordinate.
> >
> > - Amy
> >
> > On Thu, Feb 19, 2009 at 9:35 AM, Syrkina Ekaterina 
> <syrkinae at ethz.ch> wrote:
> >>
> >> Hello,
> >>
> >> I recently needed to display point cloud in paraview and 
> "converted"
> >> vtkPoints to vtkPolyData this way:
> >>
> >> vtkPolyData *data = vtkPolyData::New();
> >> vtkPoints *points = vtkPoints::New();
> >> // some code to read points from text file into vtkPoints object //
> >> data->SetPoints(points);
> >>
> >> It didn't solve my problem, since paraview displays only points
> >> associated by geometry, so one has to define faces or smth 
> else. But
> >> maybe it solves your problem.
> >>
> >> Best,
> >> Katya
> >>
> >> > -----Original Message-----
> >> > From: vtkusers-bounces at vtk.org
> >> > [mailto:vtkusers-bounces at vtk.org] On Behalf Of kent williams
> >> > Sent: Thursday, February 19, 2009 3:47 PM
> >> > To: VTK users group
> >> > Subject: Re: [vtkusers] vtkPoints to vtkPolyData
> >> >
> >> > I'm not sure what you're asking.  Are you saying you 
> have a set of 3D
> >> > points, and want to convert them into a polygon?  Then 
> Dean's function
> >> > works just fine. It assumes that your points are 
> ordered, and it's up
> >> > to you to make sure they're co-planar, but that function is 3D.
> >> >
> >> > If you're doing something more complicated, you need to be more
> >> > specific about what you're trying.
> >> >
> >> > On Thu, Feb 19, 2009 at 6:10 AM, Daniel Meier
> >> > <daniel.meier at oleco.net> wrote:
> >> > > Hi all,
> >> > >
> >> > > I'm new to vtk. How can I convert vtkPoints to vtkPolydata.
> >> > The points
> >> > > represent an object in 3D. I have found
> >> > ConvertPointSequenceToPolyData (
> >> > >
> >> > http://www.vtk.org/pipermail/vtkusers/2007-November/093317.htm
> >> > l )  from Dean
> >> > > Inglis which works fine in 2D but how can this be done in 3D?
> >> > >
> >> > > Thanks for any suggestions,
> >> > >
> >> > > Daniel
> >> > > ________________________________
> >> > > versendet mit www.oleco.de Mail - Anmeldung und 
> Nutzung kostenlos!
> >> > > Oleco www.netlcr.org - jetzt auch mit Spamschutz.
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> 
> 
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> David E DeMarle
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> R&D Engineer
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