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<div class="moz-cite-prefix">On 07/14/2015 12:20 PM, Andy Bauer
wrote:<br>
</div>
<blockquote
cite="mid:CAMaOp+GaBL5wqsU4YiQ5-VpZWqzDjPF8=oc6p950Oums+01+Zg@mail.gmail.com"
type="cite">
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<div dir="ltr">ParaView's Python Programmable Filter and Python
Programmable Source use VTK Python wrapping to do the work while
making it available in Paraview. Check out <a
moz-do-not-send="true"
href="http://www.paraview.org/Wiki/Python_Programmable_Filter">http://www.paraview.org/Wiki/Python_Programmable_Filter</a>.<br>
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<br>
Thanks. That's pretty neat, but what I'd really like is a standalone
script I can run in batch mode (no interaction) to generate one png
file per timestep for all the timesteps in the data set. Essentially
I'd like a way to construct a pipeline between the
vtk.vtkImageImport() object and the ParaView renderView1.<br>
<br>
-jeff<br>
<blockquote
cite="mid:CAMaOp+GaBL5wqsU4YiQ5-VpZWqzDjPF8=oc6p950Oums+01+Zg@mail.gmail.com"
type="cite">
<div class="gmail_extra"><br>
<div class="gmail_quote">On Tue, Jul 14, 2015 at 2:59 PM, Jeff
Becker <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:jeffrey.c.becker@nasa.gov" target="_blank">jeffrey.c.becker@nasa.gov</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">Hi.<br>
<br>
As a proof of concept, I have a vtk script that reads some
binary data, and produces a vti file. I then have a second
script that I generated using ParaView's tracing facility
while viewing the data. Now I'd like to combine them, so as
to eliminate the intermediate file, i.e., go from binary
data directly to rendering. To be specific, my vtk script
ends like this:<br>
<br>
steinbmag = steinbmag.reshape(nx,ny,nz).T<br>
<br>
vtkImporter = vtk.vtkImageImport()<br>
vtkImporter.CopyImportVoidPointer(steinbmag,
steinbmag.nbytes)<br>
<br>
vtkImporter.SetDataScalarTypeToFloat()<br>
vtkImporter.SetNumberOfScalarComponents(1)<br>
vtkImporter.SetDataExtent(0, nx-1, 0, ny-1, 0, nz-1)<br>
vtkImporter.SetWholeExtent(0, nx-1, 0, ny-1, 0, nz-1)<br>
vtkImporter.SetScalarArrayName('B field magnitude')<br>
<br>
writer=vtk.vtkXMLImageDataWriter()<br>
writer.SetFileName(out_fname)<br>
writer.SetInputConnection(vtkImporter.GetOutputPort())<br>
writer.Write()<br>
<br>
and the ParaView script starts like this:<br>
<br>
from paraview.simple import *<br>
<br>
paraview.simple._DisableFirstRenderCameraReset()<br>
<br>
filepfx = '/nobackup/jcbecker/steinBmag_0'<br>
infile = filepfx+'.vti'<br>
# create a new 'XML Image Data Reader'<br>
steinBmag_ = XMLImageDataReader(FileName=infile)<br>
steinBmag_.CellArrayStatus = []<br>
steinBmag_.PointArrayStatus = ['B field magnitude']<br>
<br>
# get animation scene<br>
animationScene1 = GetAnimationScene()<br>
<br>
# update animation scene based on data timesteps<br>
animationScene1.UpdateAnimationUsingDataTimeSteps()<br>
<br>
# get active view<br>
renderView1 = GetActiveViewOrCreate('RenderView')<br>
# uncomment following to set a specific view size<br>
renderView1.ViewSize = [1090, 761]<br>
<br>
I'm looking at the VTK examples and pvpython documentation,
but any help is appreciated.<br>
<br>
Thanks.<br>
<br>
-jeff<br>
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