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

[Berk Geveci]

> I am still interested in the original question though, is it possible to
> package polydata and a texture map in a single file so when it is opened you
> see textured mapped geometry, rather than having to import the polydata with
> texture coords and then apply a texture through the display tab?

I am afraid not. You can file a feature request at
http://paraview.org/Bug but to be honest, this would be a low priority
for us.

-berk

On Tue, Dec 16, 2008 at 2:29 AM, James Matthews
<james.matthews at earthling.net> wrote:
> I feel rather stupid for not realising that, thanks for the advice. Ideally
> I'd like to turn off this default behaviour open it in a 3D window.
>
> I am still interested in the original question though, is it possible to
> package polydata and a texture map in a single file so when it is opened you
> see textured mapped geometry, rather than having to import the polydata with
> texture coords and then apply a texture through the display tab?
>
> On Monday 15 December 2008 22:04:23 Moreland, Kenneth wrote:
>> 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
>> > >
>> > >
>> > > _______________________________________________
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>> > > 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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