[Paraview] vtkPVTrivialProducer issues

[Utkarsh Ayachit]

You may want to check the Wiki:
http://www.paraview.org/Wiki/ParaView/Python_Scripting

Utkarsh

On Wed, Apr 28, 2010 at 6:22 PM,  <wastrel at gmail.com> wrote:
> Thanks. I just tired it and it seems to work. But how does the writer figure
> out the input object?
>
> Is there any detailed documentation on pvpython?
>
> Thanks,
>
> Ken
>
>
>
> On Sun, Apr 25, 2010 at 6:37 AM, Utkarsh Ayachit
> <utkarsh.ayachit at kitware.com> wrote:
>>
>> Here's a modified version of the script, using the updated python
>> scripting style (since ParaView 3.6)
>>
>>
>> from paraview.simple import *
>> from paraview.simple import servermanager as sm
>> from paraview import vtk
>>
>> # Set the pvpython path
>> INPUTFILE="test.vtu"
>> OUTPUTFILE="tested.vtu"
>>
>> # create a reader
>> reader=XMLUnstructuredGridReader(FileName=INPUTFILE)
>>
>> # get the data i.e moves data from the server to the client
>> data=sm.Fetch(reader)
>>
>> tp=TrivialProducer()
>> obj=tp.GetClientSideObject()
>> obj.SetOutput(data)
>>
>> writer=XMLUnstructuredGridWriter(DataMode=2,FileName=OUTPUTFILE)
>> writer.UpdatePipeline()
>>
>>
>> Utkarsh
>>
>> On Sat, Apr 24, 2010 at 3:24 PM,  <wastrel at gmail.com> wrote:
>> > I simplified the code and tried it on Paraview3.8.0. It reads in a vtu
>> > file,
>> > fetch the data and then write it back to a new file. But still got
>> > errors as
>> > follow.
>> >
>> > Script:
>> >
>> > from paraview.simple import *
>> > from paraview.simple import servermanager as sm
>> > from paraview import vtk
>> >
>> > # connect internally
>> > connection=sm.Connect()
>> >
>> > # Set the pvpython path
>> > INPUTFILE="test.vtu"
>> > OUTPUTFILE="tested.vtu"
>> >
>> > # create a reader
>> > reader=sm.sources.XMLUnstructuredGridReader(FileName=INPUTFILE)
>> >
>> > # get the data i.e moves data from the server to the client
>> > data=sm.Fetch(reader)
>> >
>> > tp=sm.sources.TrivialProducer()
>> > obj=tp.GetClientSideObject()
>> > obj.SetOutput(data)
>> >
>> >
>> > writer=sm.writers.XMLUnstructuredGridWriter(DataMode=2,FileName=OUTPUTFILE,Input=obj)
>> >
>> > writer.UpdatePipeline()
>> >
>> >
>> > Errors:
>> >
>> > getting appended
>> > vtkReductionFilter : [ ...........]
>> > Traceback (most recent call last):
>> >   File "convert.py", line 88, in <module>
>> >
>> >
>> > writer=sm.writers.XMLUnstructuredGridWriter(DataMode=2,FileName=OUTPUTFILE,Input=obj)
>> >   File
>> >
>> > "/home/kitware/ParaView-3-8/ParaView-3.8/ParaView3Bin/Utilities/VTKPythonWrapping/paraview/servermanager.py",
>> > line 186, in __init__
>> >   File
>> >
>> > "/home/kitware/ParaView-3-8/ParaView-3.8/ParaView3Bin/Utilities/VTKPythonWrapping/paraview/servermanager.py",
>> > line 204, in __setattr__
>> >   File
>> >
>> > "/home/kitware/ParaView-3-8/ParaView-3.8/ParaView3Bin/Utilities/VTKPythonWrapping/paraview/servermanager.py",
>> > line 2361, in setProperty
>> >   File
>> >
>> > "/home/kitware/ParaView-3-8/ParaView-3.8/ParaView3Bin/Utilities/VTKPythonWrapping/paraview/servermanager.py",
>> > line 253, in SetPropertyWithName
>> >   File
>> >
>> > "/home/kitware/ParaView-3-8/ParaView-3.8/ParaView3Bin/Utilities/VTKPythonWrapping/paraview/servermanager.py",
>> > line 1162, in SetData
>> > AttributeError: SMProxy
>> >
>> >
>> >
>> > Any clues?
>> >
>> >
>> > On Sat, Apr 24, 2010 at 9:41 AM, Utkarsh Ayachit
>> > <utkarsh.ayachit at kitware.com> wrote:
>> >>
>> >> Here are my results from 3.7 (consequently 3.8 or git master should
>> >> work as well).
>> >>
>> >> >>> from paraview.simple import *
>> >> paraview version 3.7.0, Date: 2010-03-27
>> >> >>> TrivialProducer()
>> >> <paraview.servermanager.TrivialProducer object at 0x121587e90>
>> >> >>> servermanager.sources.TrivialProducer()
>> >> <paraview.servermanager.TrivialProducer object at 0x121587d50>
>> >>
>> >> Utkarsh
>> >>
>> >> On Fri, Apr 23, 2010 at 5:44 PM, Utkarsh Ayachit
>> >> <utkarsh.ayachit at kitware.com> wrote:
>> >> > You no longer need the initial part for loading the XML. You can
>> >> > directly use:
>> >> >
>> >> >  tp = sm.sources.TrivialProducer()
>> >> >
>> >> > and that should work.
>> >> >
>> >> > Utkarsh
>> >> >
>> >> > On Fri, Apr 23, 2010 at 5:09 PM,  <wastrel at gmail.com> wrote:
>> >> >> I used the the following snippet to generate data on the client side
>> >> >> but
>> >> >> ended up with errors:
>> >> >>
>> >> >> Code:
>> >> >> sm = servermanager
>> >> >> f = open('trivialproducer.xml', 'r')
>> >> >> parser = sm.vtkSMXMLParser()
>> >> >> parser.Parse(f.read())
>> >> >> parser.ProcessConfiguration(sm.vtkSMObject.GetProxyManager())
>> >> >> # Update the modules
>> >> >> sm._updateModules()
>> >> >>
>> >> >> tp = sm.sources.TrivialProducer()
>> >> >> obj = tp.GetClientSideObject()
>> >> >> obj.SetOutput(pd)
>> >> >>
>> >> >> # use tp as any other source proxy
>> >> >>
>> >> >>
>> >> >> trivialproducer.xml:
>> >> >>
>> >> >> <ServerManagerConfiguration>
>> >> >> <ProxyGroup name="sources">
>> >> >>
>> >> >> <SourceProxy name="TrivialProducer"
>> >> >> class="vtkPVTrivialProducer">
>> >> >> </SourceProxy>
>> >> >> </ProxyGroup>
>> >> >>
>> >> >>
>> >> >> Errors:
>> >> >> ERROR: In
>> >> >>
>> >> >>
>> >> >> /home/berk/Work/ReleaseBuilds/ParaView3/Servers/Common/vtkProcessModule.cxx,
>> >> >> line 1001
>> >> >> vtkProcessModule (0x807b790): Cannot create object of type
>> >> >> "vtkPVTrivialProducer".
>> >> >> while processing
>> >> >> Message 0 = New
>> >> >>   Argument 0 = string_value {vtkPVTrivialProducer}
>> >> >>   Argument 1 = id_value {40}
>> >> >>
>> >> >>
>> >> >> ERROR: In
>> >> >>
>> >> >>
>> >> >> /home/berk/Work/ReleaseBuilds/ParaView3/Servers/Common/vtkProcessModule.cxx,
>> >> >> line 1002
>> >> >> vtkProcessModule (0x807b790): Aborting execution for debugging
>> >> >> purposes.
>> >> >>
>> >> >> Abort
>> >> >>
>> >> >>
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>
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