[Paraview] camera commands hang in python script

[Utkarsh Ayachit]

Ah ok. Yea, 3.2's GUI python shell had issues with camera. We were not 
using python interpretors/threads correctly, which resulted in callback 
deadlocks. It should be fixed in CVS.

Utkarsh

Iain Bethune wrote:
> 3.2.1, not the CVS version.
> 
> --
> Iain Bethune
> Applications Consultant, EPCC
> 
> Email: ibethune at epcc.ed.ac.uk
> Tel/Fax: +44 (0)131 650 5201/6555
> Addr: 2404 JCMB, King's Buildings, Mayfield Road, Edinburgh, EH9 3JZ
> 
> The University of Edinburgh is a charitable body, registered in Scotland,
> with registration number SC005336.
> 
>  
> 
> -----Original Message-----
> From: Utkarsh Ayachit [mailto:utkarsh.ayachit at kitware.com] 
> Sent: 04 April 2008 14:26
> To: Iain Bethune
> Cc: paraview at paraview.org
> Subject: Re: [Paraview] camera commands hang in python script
> 
> Using camera through the python shell in the GUI had issues in ParaView 
> 3.2. However, those issues should be fixed on the CVS head. Are you 
> using 3.2 or CVS Paraview?
> 
> Utkarsh
> 
> Iain Bethune wrote:
>> Interestingly, I tried today executing the same script using pvbatch and
> it
>> works fine, it just seems to hang when using the python shell in the GUI.
>>
>> --
>> Iain Bethune
>> Applications Consultant, EPCC
>>
>> Email: ibethune at epcc.ed.ac.uk
>> Tel/Fax: +44 (0)131 650 5201/6555
>> Addr: 2404 JCMB, King's Buildings, Mayfield Road, Edinburgh, EH9 3JZ
>>
>> The University of Edinburgh is a charitable body, registered in Scotland,
>> with registration number SC005336.
>>
>>  
>>
>> -----Original Message-----
>> From: paraview-bounces at paraview.org [mailto:paraview-bounces at paraview.org]
>> On Behalf Of Sylvester Gerardson
>> Sent: 04 April 2008 10:01
>> To: paraview at paraview.org
>> Subject: Re: [Paraview] camera commands hang in python script
>>
>> I'm experiencing the same problem, both on Windows and Linux. Has anyone
>> been able to use python scripting to manipulate the camera?
>>
>> Thanks!
>> Sylvester
>>
>>> -----Original Message-----
>>> From: paraview-bounces at paraview.org 
>>> [mailto:paraview-bounces at paraview.org] On Behalf Of Iain Bethune
>>> Sent: Thursday, April 03, 2008 10:52 AM
>>> To: paraview at paraview.org
>>> Subject: [Paraview] camera commands hang in python script
>>>
>>> I've got a python script when runs OK, but hangs whenever I 
>>> do any camera
>>> manipulation commands e.g. camera.Roll(x) or camera.Elevation(x).  I'm
>>> running PV 3.2.1 (downloaded binary) on Windows.  Any ideas 
>>> what I'm doing
>>> wrong?
>>>
>>> The script is:
>>>
>>> import time
>>>
>>> # Setup
>>>
>>> if servermanager.ActiveConnection :
>>> 	connection = servermanager.ActiveConnection
>>> else:
>>> 	connection = servermanager.Connect()
>>>
>>> # Get ready to read a file
>>>
>>> reader = servermanager.sources.ImageReader()
>>> reader.FilePrefix = 
>>> "Z:\\hpcx\\tera\\visualisation\\test_data\\32x32x32"
>>> reader.DataExtent = [0, 31, 0, 31, 0, 31]
>>> reader.DataScalarType = 10
>>>
>>> # Read the file
>>>
>>> view = servermanager.CreateRenderView()
>>> rep = servermanager.CreateRepresentation(reader, view)
>>>
>>> # Set up how to draw the data
>>>
>>> ai =
>>> reader.GetDataInformation().GetPointDataInformation().GetArray
>>> Information(0)
>>> lt = servermanager.rendering.PVLookupTable()
>>> rep.LookupTable = lt
>>> rep.ColorAttributeType = 0
>>> rep.ColorArrayName = "ImageFile"
>>> lt.RGBPoints = [ai.GetComponentRange(0)[0], 0, 0, 1,
>>> ai.GetComponentRange(0)[1], 1, 0, 0]
>>> lt.ColorSpace = 1
>>>
>>> # Draw
>>>
>>> print "Setup, now rendering..."
>>> print time.clock()
>>>
>>>
>>>
>>> view.StillRender()
>>> view.ResetCamera()
>>> camera = view.GetActiveCamera()
>>> camera.Elevation(45.0)   <--- HANGS HERE
>>> view.StillRender()
>>>
>>> print time.clock()
>>>
>>> print"Finished rendering"
>>>
>>> # Save the file
>>>
>>> view.WriteImage("Z:\\hpcx\\tera\\visualisation\\testimg.png",
>>> "vtkPNGWriter", 1)
>>>
>>> print time.clock()
>>> print "Finished saving file"
>>>
>>> Cheers
>>>
>>> - Iain
>>>
>>> --
>>> Iain Bethune
>>> Applications Consultant, EPCC
>>>
>>> Email: ibethune at epcc.ed.ac.uk
>>> Tel/Fax: +44 (0)131 650 5201/6555
>>> Addr: 2404 JCMB, King's Buildings, Mayfield Road, Edinburgh, EH9 3JZ
>>>
>>> The University of Edinburgh is a charitable body, registered 
>>> in Scotland,
>>> with registration number SC005336.
>>>
>>>  
>>>
>>>
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