[Paraview] 3D vector & contour plots from a set of scattered point

[Nima Emadi]

Thanks a lot Sven,
I could generate vector plots. Still trying to find a way to do 3D contour
plots for my scattered points. As you said I need to have a mesh and to
interpolate my scalar value to nodes of that mesh. Does anyone have an idea
to do that?

Best,
Nima.

On Sat, Nov 28, 2009 at 1:07 PM, Sven Buijssen <sven.buijssen at tu-dortmund.de
> wrote:

> Nima,
>
> Your first question has been discussed last month on this list, have a look
> at
> http://markmail.org/message/36223zg4uleibiyj. David found the time to put
> the
> question in FAQ style into the ParaView wiki. So, you can also look at
>
> http://www.paraview.org/Wiki/Display_points_and_normals_from_a_plain_text_(x_y_z_nx_ny_nz)_file<http://www.paraview.org/Wiki/Display_points_and_normals_from_a_plain_text_%28x_y_z_nx_ny_nz%29_file>
>
> I haven't faced the problem yet you describe in your second question. I'm
> guessing you'll have to import your scattered data into ParaView (e.g. as
> CSV
> data) and somehow come up with a regular grid in ParaView. This might be
> possible using a Programmable Source or Sources - Data Object Generator,
> but I'm
> not sure of that. Maybe someone else can point this out. Once you have a
> regular
> grid, use the Resample with Dataset filter to interpolate your point data
> set(s)
> to the regular grid and apply the Contour filter.
>
> Hope this helps.
>
> Sven
>
>
> Nima Emadi wrote, On 11/28/2009 12:01 PM:
> > Dear all,
> > I would like to generate 3D vector plots from a set of scattered data in
> > space (an ASCII file with x,y,z,u,v,w). I guess this should be rather
> > simple, but later on I want to generate 3D contour plots out of my data
> > (e.g. having contours based on the value of u^2+v^2+w^2 at each point).
> > Since I just have the value on scattered points in space, making those
> > contours will probably require extrapolation of my data to nodes of a
> > (regular) mesh. My question is that, how can I do those plots? with
> > which format should I import my data? Is paraview able to make contour
> > plots with scattered data points in 3D?
> >
> > Thanks,
> > Nima
> >
> >
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