[Paraview] X3DExporter false mesh colouring?

Tue May 31 07:59:08 EDT 2016

Just a quick note that Your fix went into VTK after the newest VTK was synched 
into PV, so I had to do a pull in the VTK subdirectory of PV to get it.
Works like a charm now and together with X3dToX3dom.xslt yields a zoom-able HTML:
http://romangrothausmann.github.io/FacetAnalyser/demos/X3D/8faced-rhombic-dodecahedron_twinned_simp%2Bdef.xhtml

On 24/05/16 14:52, Grothausmann, Roman Dr. wrote:
> Many, many thanks Utkarsh for that quick fix!
> Yes, You are right, my VTK test was using point data, so the problem didn't appear.
> Thanks again for the great support.
>
> On 23/05/16 19:08, Utkarsh Ayachit wrote:
>> Here's a fix for the same:
>>
>> https://gitlab.kitware.com/vtk/vtk/merge_requests/1517
>>
>> Utkarsh
>>
>> On Mon, May 23, 2016 at 11:42 AM, Utkarsh Ayachit
>> <utkarsh.ayachit at kitware.com> wrote:
>>> Ah okay. Looks like there's another bug with cell-data coloring and
>>> x3d. I've spotted the bug (I think) and am working on a fix. Not sure
>>> how this could have worked in VTK example, however. I'll send you a
>>> patch shortly.
>>>
>>> On Mon, May 23, 2016 at 11:15 AM, Grothausmann, Roman Dr.
>>> <grothausmann.roman at mh-hannover.de> wrote:
>>>> Many thanks Utkarsh for Your quick reply.
>>>> Attached is an example VTP (generated by
>>>> https://github.com/romangrothausmann/FacetAnalyser/blob/master/demos/8faced-rhombic-dodecahedron_twinned_simp%2Bdef.pvsm)
>>>>
>>>> coloured with KAAMS cat. on FacetIds (cell data) and then exported as X3D
>>>> from PV5. The PNG is a comparison view of PV and view3dscene.
>>>> The WebGL output (from make test) is great:
>>>> http://htmlpreview.github.io/?https://github.com/romangrothausmann/FacetAnalyser/blob/master/demos/8faced-rhombic-dodecahedron_twinned_simp%2Bdef.html
>>>>
>>>>
>>>>
>>>> On 23/05/16 16:10, Utkarsh Ayachit wrote:
>>>>>
>>>>> And same with categorical colors. I did notice, however, it fails when
>>>>> coloring with "Field Data" arrays. Is that what you're seeing? That
>>>>> I'd expected would fail in VTK too. That's indeed a missing feature in
>>>>> the exporter.
>>>>>
>>>>> On Mon, May 23, 2016 at 10:06 AM, Utkarsh Ayachit
>>>>> <utkarsh.ayachit at kitware.com> wrote:
>>>>>>
>>>>>> Roman,
>>>>>>
>>>>>> Can you post an example? When I tried the same with a simple sphere
>>>>>> color by "Normals X", it seems to work as expected. I used
>>>>>> "view3dscene" to view the X3d file.
>>>>>>
>>>>>> On Mon, May 23, 2016 at 7:26 AM, Grothausmann, Roman Dr.
>>>>>> <grothausmann.roman at mh-hannover.de> wrote:
>>>>>>>
>>>>>>> Dear mailing list members,
>>>>>>>
>>>>>>>
>>>>>>> When I export scenes to X3D then load the mesh into blender or a browser
>>>>>>> the
>>>>>>> mesh is colour wrong. The colours are there but apparently assigned to
>>>>>>> random cells/vertices. This happens with either PV5 or PV4, especially
>>>>>>> for
>>>>>>> category colouring. When using e.g. WebGL exporter all is fine.
>>>>>>> Is there anything to do special for exporting to X3D? When I use plain
>>>>>>> VTK,
>>>>>>> the exported colours seemed OK so far.
>>>>>>>
>>>>>>> Any help or hints are very much appreciated
>>>>>>> Roman
>>>>>>>
>>>>>>>
>>>>>>> On 04/12/14 15:34, Michael Nolde wrote:
>>>>>>>>
>>>>>>>>
>>>>>>>> works perfectly, thank you!
>>>>>>>>
>>>>>>>> On 03.12.2014 19:49, Sebastien Jourdain wrote:
>>>>>>>> View is not valid at the point you get it.
>>>>>>>>
>>>>>>>> from paraview.simple import *
>>>>>>>> exporters=servermanager.createModule("exporters")
>>>>>>>> source=Cone()
>>>>>>>> Show()
>>>>>>>> render=Render()
>>>>>>>> x3dExporter=exporters.X3DExporter(FileName="foo.x3d")
>>>>>>>> x3dExporter.SetView(render)
>>>>>>>> x3dExporter.Write()
>>>>>>>>
>>>>>>>> On Wed, Dec 3, 2014 at 10:01 AM, Michael Nolde <__mnolde at gmx.net__>
>>>>>>>> wrote:
>>>>>>>> Dear mailing list members,
>>>>>>>>
>>>>>>>> I have some trouble exporting a scene to a X3D file via pvpython.
>>>>>>>> I tried to execute to code found in
>>>>>>>> __http://public.kitware.com/pipermail/paraview/2012-May/024924.html__
>>>>>>>> (see below). It is executed without any errors, but no output file is
>>>>>>>> created.
>>>>>>>> My Paraview version is 4.0.1 64-bit (on a Ubuntu 14.04 machine).
>>>>>>>> What I want to achieve is to convert .ply files to .x3d via pvpython.
>>>>>>>> Could someone give me a hint?
>>>>>>>>
>>>>>>>> Thanks in advance,
>>>>>>>> Michael
>>>>>>>>
>>>>>>>> from paraview.simple import *
>>>>>>>> exporters=servermanager.createModule("exporters")
>>>>>>>> source=Cone()
>>>>>>>> view = GetActiveView()
>>>>>>>> Show(view)
>>>>>>>> render=Render()
>>>>>>>> x3dExporter=exporters.X3DExporter(FileName="foo.x3d")
>>>>>>>> x3dExporter.SetView(view)
>>>>>>>> x3dExporter.Write()
>>>>>>>>
>>>>>>>>
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>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> Dr. Roman Grothausmann
>>>>>>>
>>>>>>> Tomographie und Digitale Bildverarbeitung
>>>>>>> Tomography and Digital Image Analysis
>>>>>>>
>>>>>>> Institut für Funktionelle und Angewandte Anatomie, OE 4120
>>>>>>> Medizinische Hochschule Hannover
>>>>>>> Carl-Neuberg-Str. 1
>>>>>>> D-30625 Hannover
>>>>>>>
>>>>>>> Tel. +49 511 532-2900
>>>>>>> _______________________________________________
>>>>>>> Powered by www.kitware.com
>>>>>>>
>>>>>>> Visit other Kitware open-source projects at
>>>>>>> http://www.kitware.com/opensource/opensource.html
>>>>>>>
>>>>>>> Please keep messages on-topic and check the ParaView Wiki at:
>>>>>>> http://paraview.org/Wiki/ParaView
>>>>>>>
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>>>>
>>>> --
>>>> Dr. Roman Grothausmann
>>>>
>>>> Tomographie und Digitale Bildverarbeitung
>>>> Tomography and Digital Image Analysis
>>>>
>>>> Institut für Funktionelle und Angewandte Anatomie, OE 4120
>>>> Medizinische Hochschule Hannover
>>>> Carl-Neuberg-Str. 1
>>>> D-30625 Hannover
>>>>
>>>> Tel. +49 511 532-2900
>

-- 
Dr. Roman Grothausmann

Tomographie und Digitale Bildverarbeitung
Tomography and Digital Image Analysis

Institut für Funktionelle und Angewandte Anatomie, OE 4120
Medizinische Hochschule Hannover
Carl-Neuberg-Str. 1
D-30625 Hannover

Tel. +49 511 532-2900