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 <[email protected]>
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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#### import the simple module from the paraview
from paraview.simple import *
#### disable automatic camera reset on 'Show'
paraview.simple._DisableFirstRenderCameraReset()
# create a new 'Sphere'
sphere1 = Sphere()
# get active view
renderView1 = GetActiveViewOrCreate('RenderView')
# uncomment following to set a specific view size
renderView1.ViewSize = [100, 100]
# show data in view
sphere1Display = Show(sphere1, renderView1)
# trace defaults for the display properties.
sphere1Display.ColorArrayName = [None, '']
sphere1Display.DiffuseColor = [0.0, 0.65, 1.0]
# reset view to fit data
renderView1.ResetCamera()
# current camera placement for renderView1
renderView1.CameraPosition = [0.0, 0.0, 3.2903743041222895]
renderView1.CameraParallelScale = 0.8516115354228021
# save screenshot
SaveScreenshot('/home/danlipsa/Desktop/a.png', magnification=1, quality=100, view=renderView1)
#### saving camera placements for all active views
# current camera placement for renderView1
renderView1.CameraPosition = [0.0, 0.0, 3.2903743041222895]
renderView1.CameraParallelScale = 0.8516115354228021
#### uncomment the following to render all views
# RenderAllViews()
# alternatively, if you want to write images, you can use SaveScreenshot(...).
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