[Paraview] CellDataToPointData in paraview script

[Berk Geveci]

To easily diagnose such mistakes (which I make ALL the time), I made
changes to cvs ParaView such that you cannot add arbitrary attributes
to proxy objects. When we release the next version, this script will
produce an exception.

-berk

On Thu, Mar 5, 2009 at 3:16 AM, Luc Bordier <luc.bordier at sirehna.com> wrote:
> Hi,
>
> I forgot the "e" for ColorAttributeType (and not ColorAttributType)
>
> stupid mistake.
>
> thanks anyway
>
> _________________________
> Luc Bordier
> R&D Engineer
> luc.bordier at sirehna.com
> http://www.sirehna.com
> SIREHNA
> 1, rue de la Noe
> BP 42105
> 44321 NANTES CEDEX 3
> FRANCE
> Tel: +33 2 51 86 02 80
> Fax: +33 2 40 74 17 36
> _________________________
>
>
> Peter Brady a écrit :
>>
>> Hi,
>>
>> I had a similar problem a while back.  Try applying the
>> CellDataToPointData filter before the cut filter.
>>
>> Hope it works,
>> Peter.
>>
>> On Mon, Mar 2, 2009 at 3:06 AM, Luc Bordier <luc.bordier at sirehna.com>
>> wrote:
>>
>>>
>>> Hello,
>>>
>>> I'm starting to use paraview in script mode using pvpython.
>>>
>>> I succeeded to load my data and to make a representation of my U CellData
>>> fields using a Cut() filters.
>>> This works fine.
>>>
>>> But now I would like to have the magnitude of my U field for PointData
>>> and
>>> I'm stuck in the use of CellDataToPointData filter.
>>> The following script only give me a blank field for my Cut() when passing
>>> trough the CellDataToPointData filter.
>>>
>>> Surely I forgot something (interpolation, choice of component of field),
>>> but
>>> even by looking at the dir() and help() I didn't manage to have my field
>>> interpolated at points and represented in colors.
>>>
>>> Thanks for anyone who could give me hints to solve this problem.
>>>
>>> python script :
>>>
>>> con = servermanager.Connect()
>>> vtkf =
>>>
>>> servermanager.sources.LegacyVTKFileReader(FileNames="VTK\\design71_1.vtk")
>>> vtkf.UpdatePipeline()
>>>
>>> implicit_functions = servermanager.createModule("implicit_functions")
>>> plane = implicit_functions.Plane()
>>> plane.Origin = [0,0,-0.5]
>>> plane.Normal = [0,0,1]
>>>
>>> zcut = servermanager.filters.Cut()
>>> zcut.Input = vtkf
>>> zcut.CutFunction = plane
>>> zcut.ContourValues = [0]
>>> zcut.UpdatePipeline()
>>>
>>> pdata = servermanager.filters.CellDataToPointData(Input=zcut)
>>> pdata.UpdatePipeline()
>>>
>>> view = servermanager.CreateRenderView()
>>> view.ViewSize = [1440, 900]
>>> rep = servermanager.CreateRepresentation(pdata,view)
>>>
>>> lt = servermanager.rendering.PVLookupTable()
>>> rep.LookupTable = lt
>>> rep.ColorAttributType = 0
>>> rep.ColorArrayName = 'U'
>>> lt.RGBPoints = [0, 0, 0, 1, 15.0, 1, 0, 0]
>>> lt.ColorSpace = 1
>>>
>>> view.ResetCamera()
>>> camera = view.GetActiveCamera()
>>> camera.SetPosition(0.85, 0, 8.55)
>>> camera.SetFocalPoint(0.85, 0 , -0.5)
>>>
>>> view.StillRender()
>>> view.WriteImage("test.png","vtkPNGWriter", 1)
>>>
>>> --
>>> _________________________
>>> Luc Bordier
>>> R&D Engineer
>>> luc.bordier at sirehna.com
>>> http://www.sirehna.com
>>> SIREHNA
>>> 1, rue de la Noe
>>> BP 42105
>>> 44321 NANTES CEDEX 3
>>> FRANCE
>>> Tel: +33 2 51 86 02 80
>>> Fax: +33 2 40 74 17 36
>>> _________________________
>>>
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>>>
>>
>>
>>
>
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