[Paraview] Paraview 4.3.1 Python - Screenshot of specific size and ratio

[Dan Lipsa]

Ruggiero,
The following script saves a 100x100 sphere.
I created it using the trace option in ParaView.


On Thu, Sep 10, 2015 at 5:07 AM, Ruggiero Guida <ruggiero.guida at gmail.com>
wrote:

> I am trying to create a screenshot of a specific size from a [VTK file][1].
> This is the code I am using
>
>     from paraview.simple import *
>     paraview.simple._DisableFirstRenderCameraReset()
>     rad_map = LegacyVTKReader(FileNames=['test.vtk'])
>
>     # get active view
>     renderView1 = GetActiveViewOrCreate('RenderView')
>     dpi = 70
>     heigth = 24.39846235421442
>     width = 24.398462354214413
>     width_p = int(width * dpi)
>     heigth_p = int(heigth * dpi)
>     renderView1.ViewSize = [width_p, heigth_p]
>
>     # reset view to fit data
>     #renderView1.ResetCamera()
>
>     # current camera placement for renderView1
>     renderView1.CameraParallelProjection = 1
>     renderView1.CameraPosition = [5, 5, 1000]
>     renderView1.CameraFocalPoint = [5, 5, 0.0]
>     renderView1.CameraViewUp = [0.0, 1.0, 0.0]
>     scale = (heigth) / 2.0
>     renderView1.CameraParallelScale = scale
>
>     Render()
>     SaveScreenshot("/Users/ruggiero/dev/test.png", magnification=1)
>
> The problem is that the `ViewSize` seems to be ignored and I keep having
> images of fixed size 1707 × 855. The height 855 seems to be a kind of
> limit; the only way to get what I want is to limit the `ViewSize` to
> 855x855.
>
> I have checked [this][2] question and [this][3] question, but with no
> success.
>
> Any idea? I am not very confident in the settings for the camera. Could
> this be the issue?
>
>
>   [1]: https://dl.dropboxusercontent.com/u/1342856/test.vtk
>   [2]:
> http://stackoverflow.com/questions/31930448/in-python-script-for-paraview-can-i-specify-the-resolution-when-i-do-a-savescre
>   [3]:
> http://stackoverflow.com/questions/27430588/paraview-python-command-to-save-picture-of-defined-size
>
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