[Paraview] Python Scripting - Acess vtkOpenGL cameras from .pvx files information

[Utkarsh Ayachit]

Leo,

You can't access it in Python since the Python script is not run on the
server side. If your goal is to debug what thet camera is set to, you can
put cout's to print the camera in
`vtkCaveSynchronizedRenderers::HandleStartRender`. That's where the local
camera on each rank is "prepped" for rendering a frame.

Utkarsh

On Mon, Oct 23, 2017 at 9:20 AM, Léo Pessanha <leonardopessanha74 at gmail.com>
wrote:

> Hi!
>
> I would like to know if there's a way to acess the information/attributes
> of the cameras there are created trough a .pvx file
>
> To acess the attributes in the camera of the active Layout/RenderView  I
> do:
>
> 1 - Open Python Shell
> 2 - camera = GetActiveCamera()
> 3 - print(camera)
>
> And the output is:
>
> vtkOpenGLCamera (0x4a45e80)
>
> Debug: Off
>
> Modified Time: 405029
>
> Reference Count: 5
>
> Registered Events:
>
> Registered Observers:
>
> (none)
>
> ClippingRange: (1.63277, 5.56498)
>
> DirectionOfProjection: (0.526409, 0.492965, -0.692733)
>
> Distance: 3.37001
>
> EyeAngle: 2
>
> FocalDisk: 1
>
> FocalPoint: (0, 0, 0)
>
> ViewShear: (0, 0, 1)
>
> ParallelProjection: Off
>
> ParallelScale: 0.872667
>
> Position: (-1.77401, -1.6613, 2.33452)
>
> Stereo: Off
>
> Left Eye: 1
>
> Thickness: 3.93221
>
> ViewAngle: 30
>
> UseHorizontalViewAngle: 0
>
> UserTransform: (none)
>
> (none)
>
> FreezeFocalPoint: (none)
>
> ViewPlaneNormal: (-0.526409, -0.492965, 0.692733)
>
> ViewUp: (-0.0865543, 0.841596, 0.533127)
>
> WindowCenter: (0, 0)
>
> UseOffAxisProjection: (0)
>
> ScreenBottomLeft: (-0.5, -0.5, -0.5)
>
> ScreenBottomRight: (0.5, -0.5, -0.5)
>
> ScreenTopRight: (0.5, 0.5, -0.5)
>
> EyeSeparation: (0.06)
>
> WorldToScreenMatrix: (0x4a457c0
>
> Debug: Off
>
> Modified Time: 155883
>
> Reference Count: 1
>
> Registered Events: (none)
>
> Elements:
>
> 1 0 0 0
>
> 0 1 0 0
>
> 0 0 1 0
>
> 0 0 0 1
>
> )
>
> EyeTransformMatrix: (0x4a458b0
>
> Debug: Off
>
> Modified Time: 155885
>
> Reference Count: 1
>
> Registered Events: (none)
>
> Elements:
>
> 1 0 0 0
>
> 0 1 0 0
>
> 0 0 1 0
>
> 0 0 0 1
>
> )
>
> ModelTransformMatrix: (0x4a459a0
>
> Debug: Off
>
> Modified Time: 155887
>
> Reference Count: 1
>
> Registered Events: (none)
>
> Elements:
>
> 1 0 0 0
>
> 0 1 0 0
>
> 0 0 1 0
>
> 0 0 0 1
>
> )
>
> ProjectionTransform: (0x4a46280
>
> Debug: Off
>
> Modified Time: 405415
>
> Reference Count: 1
>
> Registered Events: (none)
>
> Inverse: (0)
>
> Matrix: (0x4a46330)
>
> Debug: Off
>
> Modified Time: 405416
>
> Reference Count: 1
>
> Registered Events: (none)
>
> Elements:
>
> 3.76067 0 0 0
>
> 0 3.73205 0 0
>
> 0 0 -1.83046 -4.62147
>
> 0 0 -1 0
>
> Input: (0)
>
> InverseFlag: 0
>
> NumberOfConcatenatedTransforms: 1
>
> 0: vtkSimpleTransform at 0x6ecdae0
>
> )
>
>
> *How to get these informations of the cameras created from a .pvx file?*
>
>
>
> Thanks in advance,
> Leonardo Pessanha
> Laboratory of Computational Methods in Engineering
> Federal University of Rio de Janeiro - COPPE
> Rio de Janeiro, RJ, Brasil
>
>
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