[Paraview] Export polydata and texture map in vtk file for viewing in paraview

[Moreland, Kenneth]

You can view a 2D image in a 3D view by simply selecting the 3D view (clicking on it so that the red boarder is around it) and then clicking the eyeball next to the image data.  You can get rid of the 2D view by clicking the X just above and at the right side of the 2D view.

-Ken


On 12/14/08 1:24 PM, "James Matthews" <james.matthews at earthling.net> wrote:

Thanks for the quick reply. I am not quite sure what you mean.

I have written out my image data from a vtkImageData object using
vtkXMLImageDataWriter to a .vti file.

I have written my polydata out using vtkXMLPolyDataWriter to a .vtp file.

The image data is orientated and locate such that it is a plane through the
centre of the polydata model (which is a vehicle).

If I open the files in Paraview (v3.4) it opens the image data in a separate
window to the polydata. The image data cannot by rotated, just panned in 2D. I
see options for 'slices' but not sure what I can do with them to solve this
problem.

Hopefully I've explained the problem reasonably well.

<Apologies if this is a duplicate reply, I have had some email problems and my
last reply doesn't seem to appear on the list>

On Wednesday 10 December 2008 21:08:46 you wrote:
> In 3.4, if you load a 2D image and show it using the Slice
> representation, ParaView will use texture map automatically. So you
> shouldn't need to do anything but load the image data directly.
>
> -berk
>
> On Wed, Dec 10, 2008 at 2:34 PM, James Matthews
>
> <james.matthews at earthling.net> wrote:
> > Hi, I would like some advice regarding displaying a 2D slice of scalar
> > data on a structured grid in a 3D scene containing polydata using
> > Paraview.
> >
> > I have a 2D slice of data from an FE analysis which with I want to view
> > in Paraview. I want to view it on a 2D plane within a 3D 'scene'
> > consisting of 3D polydata. For example I have a vehicle placed in the
> > center of the scene which is imported from a .vtp file I have created. I
> > have analysis results on a plane through the centre of the vehicle. This
> > is scalar data on a 2D structured grid. I want to be able to import the
> > vehicle model in .vtp format and import the analysis results in a
> > standard vtk format and view both.
> >
> > The analysis data I have in an vtkimagedata object. One solution is to
> > use the geometry filter and create polydata and write this to a .vtp
> > file. e.g. (assuming the image data is stored in *id);
> >
> > vtkImageDataGeometryFilter *idf = vtkImageDataGeometryFilter::New();
> > idf->SetInput(id);
> >
> > vtkXMLPolyDataWriter *writer = vtkXMLPolyDataWriter::New();
> > writer->SetInput(idf->GetOutput());
> > writer->SetFileName(fname.c_str());
> > writer->Write();
> >
> > For large data sets the visualisation is slow. What I really want to do
> > is create a plane and texture map the analysis data onto it. I can create
> > a plane with texture coords and export this separately as a .vtp file. I
> > can also export the image data as an image file (png/jpeg etc.). In
> > paraview I can then open the .vtp file containing the plane with texture
> > coords and then apply the texture by reading in the image.
> >
> > However, can I do this using a single file? Is there a way to have the
> > texture mapped polydata and texture in one file so that when it is opened
> > you see the texture mapped polydata? Have I gone  about this all wrong?
> > Any better ideas as to how I do this?
> >
> > Many Thanks,
> >
> > JM
> >
> >
> > _______________________________________________
> > ParaView mailing list
> > ParaView at paraview.org
> > http://www.paraview.org/mailman/listinfo/paraview

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   ****      Kenneth Moreland
    ***      Sandia National Laboratories
***********
*** *** ***  email: kmorel at sandia.gov
**  ***  **  phone: (505) 844-8919
    ***      web:   http://www.cs.unm.edu/~kmorel

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