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<div class="moz-cite-prefix">On 07/20/2015 05:43 PM, Berk Geveci
wrote:<br>
</div>
<blockquote
cite="mid:CAE32kpW9LoazpP6Xu_3WUmVMqE8FoA0kiw5TRAXrwwms0OBOQg@mail.gmail.com"
type="cite">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<div dir="ltr">You probably need to update vtkImageExport and
shallow copy its output to the programmable source's output. You
also need to add something to the RequestInformation setting the
whole extent. You need something like:
<div><br>
</div>
<div>
<div>from paraview import util</div>
<div> </div>
<div>util.SetOutputWholeExtent(self, [0,nx-1,0,ny-1,0,nz-1])<br>
</div>
</div>
<div><br>
</div>
<div>By the way, there are better ways of getting numpy arrays
into VTK than the image import stuff. See some of the earlier
blogs here:</div>
</div>
</blockquote>
<br>
Right. I found the RequestInformation info above from searching the
web. Then I was able to follow the instructions in the ParaView
Guide section 13.2.4 Reading binary 2D image. I basically replaced
the image import stuff with code analogous to the output
assignment,<br>
<br>
Thanks for your help.<br>
<br>
-jeff<br>
<br>
<blockquote
cite="mid:CAE32kpW9LoazpP6Xu_3WUmVMqE8FoA0kiw5TRAXrwwms0OBOQg@mail.gmail.com"
type="cite">
<div dir="ltr">
<div><br>
</div>
<div><a moz-do-not-send="true"
href="http://www.kitware.com/blog/home/user/53/2">http://www.kitware.com/blog/home/user/53/2</a><br>
</div>
<div><br>
</div>
<div>Best,</div>
<div>-berk</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Mon, Jul 20, 2015 at 2:08 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">
<div bgcolor="#FFFFFF" text="#000000">
<div>Hi,<span class=""><br>
<br>
On 07/18/2015 05:17 PM, Berk Geveci wrote:<br>
</span></div>
<span class="">
<blockquote type="cite">
<div dir="ltr">To elaborate on what Andy said, you can
stick your entire VTK script in side the
programmable source. Which you can use in batch mode
as well. If you want to keep your VTK script as a
reusable code, I recommend making it a module that
you import from the programmable source.</div>
</blockquote>
<br>
</span> So if the last thing my VTK script does is set up
a vtkImageImport object should that work as a programmable
source (I tried but ParaView didn't get any bounds or
scalar field name even though I set them up)? If not, what
else do I need to do? Thanks.<span class="HOEnZb"><font
color="#888888"><br>
<br>
-jeff</font></span>
<div>
<div class="h5"><br>
<br>
<blockquote type="cite">
<div dir="ltr">
<div><br>
</div>
<div>Best,</div>
<div>-berk</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Tue, Jul 14, 2015 at
3:43 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">
<div bgcolor="#FFFFFF" text="#000000"><span>
<div>On 07/14/2015 12:20 PM, Andy Bauer
wrote:<br>
</div>
<blockquote type="cite">
<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"
target="_blank">http://www.paraview.org/Wiki/Python_Programmable_Filter</a>.<br>
</div>
</blockquote>
<br>
</span> 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.<span><font
color="#888888"><br>
<br>
-jeff</font></span>
<div>
<div><br>
<blockquote 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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