[Paraview] RE : [paraview] using with python to read file VTK in 3.7 and to show a volume representation

[Utkarsh Ayachit]

Jona,

Ah, there was an issue running in client-server mode. I've just committed a
fix.

/cvsroot/ParaView3/ParaView3/Servers/ServerManager/vtkSMProxy.cxx,v  <--
Servers/ServerManager/vtkSMProxy.cxx
new revision: 1.114; previous revision: 1.113
/cvsroot/ParaView3/ParaView3/Servers/ServerManager/Resources/utilities.xml,v
<--  Servers/ServerManager/Resources/utilities.xml
new revision: 1.174; previous revision: 1.173

Please update and try again.

Thanks
Utkarsh


On Wed, May 27, 2009 at 5:18 AM, BOUSSOIR Jonathan 167706 <
Jonathan.BOUSSOIR at cea.fr> wrote:

> Hi Utkarsh,
> Thank you for your script but I have been a error when I excute this line :
> dp.ScalarOpacityFunction = opacity_func
> Thanks in advance for your kind help.
> Regards,
> Jona
>
> dp.ScalarOpacityFunction = opacity_func
> ERROR: In
> /home/myrrha/Desktop/paraview/paraview3.7/ParaView3/Servers/Common/vtkProcessModule.cxx,
> line 1045
> vtkProcessModule (0xef5150): Object type: vtkVolumeProperty, could not find
> requested method: "SetScalarOpacity"
> or the method was called with incorrect arguments.
>
> while processing
> Message 0 = Invoke
>  Argument 0 = id_value {78}
>  Argument 1 = string_value {SetScalarOpacity}
>  Argument 2 = id_value {662}
>
>
> ERROR: In
> /home/myrrha/Desktop/paraview/paraview3.6/ParaView3/Servers/Common/vtkProcessModule.cxx,
> line 1046
> vtkProcessModule (0xef5150): Aborting execution for debugging purposes.
>
> Abandon
>
>
> My script
>
> from paraview.simple import *
> Connect('localhost')
>
> reader = servermanager.sources.LegacyVTKReader(FileNames='wavelet.vtk')
>
> Show(reader)
>
> dp = GetDisplayProperties(reader)
>
> # Create LUT
> dp.LookupTable = MakeBlueToRedLT(37.35, 276)
>
> # Set array to color by
> dp.ColorAttributeType = 'POINT_DATA'
> dp.ColorArrayName = 'RTData'
>
> #dp.Representation = 'Volume'
> #Render()
>
> # Register PiecewiseFunction if not already available.
> if not "PiecewiseFunction" in dir(servermanager.rendering):
>  servermanager.createModule("piecewise_functions", servermanager.rendering)
>
> # Setup opacity function
> opacity_func = servermanager.rendering.PiecewiseFunction()
> opacity_func.Points = [37.35, 0, 276.82, 0.5]
> dp.ScalarOpacityFunction = opacity_func
>
> dp.Representation = 'Volume'
> Render()
>
>
>
>
>
>
> -------- Message d'origine--------
> De: Utkarsh Ayachit [mailto:utkarsh.ayachit at kitware.com]
> Date: lun. 25/05/2009 16:09
> À: BOUSSOIR Jonathan 167706
> Cc: paraview at paraview.org
> Objet : Re: [Paraview] [paraview] using with python to read file VTK in 3.7
> and to show a volume representation
>
> Jona,
>
> Look at the attached script.
> For volume rendering you need to specify the scalar to use for volume
> rendering as well as the color lookup table as well as the scalar opacity
> function. The attached script illustrates how to do the same.
>
> Utkarsh
>
> On Mon, May 25, 2009 at 8:08 AM, BOUSSOIR Jonathan 167706 <
> Jonathan.BOUSSOIR at cea.fr> wrote:
>
> >
> > Hi all,
> >
> > I am new to paraview, I am using Linux. I read a lot of paraview emails
> > this morning. I see you have been work hard last days on python script.
> > I download last version and compile.
> > Now I can read a file VTK surface sphere. But, I have still one error
> when
> > I want to show my volume VTK file. I read a file then I tried to change
> the
> > representation and I execute Render(), I have a problem : Cell Scalars
> not
> > supported.
> >
> > I link my VTK file in my email.
> > Thanks in advance for your kind help.
> >
> > Regards,
> > Jona
> >
> >
> > #!/usr/bin/python
> > # -*- coding: latin-1 -*-
> >
> > from paraview.simple import *
> > connection = servermanager.Connect('localhost')
> >
> > # Create the reader and set the filename.
> > reader = servermanager.sources.LegacyVTKReader(FileNames='wavelet.vtk')
> >
> > Show(reader)
> > Render()
> >
> > dp = GetDisplayProperties(reader)
> > dp.Representation
> > #>>> : 'Slice'
> >
> > dp.GetProperty("Representation").Available
> > #>>> : ['Outline', 'Points', 'Wireframe', 'Surface', 'Surface With
> Edges',
> > 'Volume', 'Slice']
> >
> > dp.Representation = 'Volume'
> >
> > Show(reader)
> > Render()
> >
> > ERROR: In
> >
> /home/myrrha/Desktop/paraview/paraview3.7/ParaView3/VTK/VolumeRendering/vtkFixedPointVolumeRayCastMapper.cxx,
> > line 1467
> > vtkFixedPointVolumeRayCastMapper (0x2d7d650): Cell Scalars not supported
> >
> > Erreur de segmentation
> >
> > "When I excute this last line "Render()", I have a error, I don't
> > understand"
> >
> >
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