Hi,<br><br>If you look at paraview's vtk/__init__.py, you'll see:<br><br> from libvtkRenderingPython import vtkCamera<br><br>So that is why vtk.vtkGL2PSExporter() doesn't work- the complete vtkRendering kit has not been imported. You could do this:<br>
<br>from libvtkRenderingPython import vtkGL2PSExporter<br>exporter = vtkGL2PSExporter()<br><br>or<br><br>import libvtkRenderingPython as vtkrendering<br>exporter = vtkrendering.vtkGL2PSExporter()<br><br>If you are running this in the paraview gui, you can get the local render window (vtkRenderWindow) by calling:<br>
<br>view = GetActiveView().GetRenderWindow()<br><br><br>You should understand that you are working directly with vtk objects here. The paraview way to handle this is to write a proxy xml definition for the GL2PS exporter. You can see an example by searching for VRMLExporter in Servers/ServerManager/Resources/utilities.xml Then your script might be something like:<br>
<br>exporters = servermanager.createModule("exporters")<br><div id=":xz" class="ii gt">
exp = exporters.GL2PSExporter(FileName="/tmp/<a href="http://foo.ps">foo.ps</a>")<br>
exp.View = GetActiveView()<br>
exp.Write()</div><br><br><br>Pat<br><br><br><div class="gmail_quote">On Thu, Jun 17, 2010 at 2:26 PM, Marcin Sliwowski <span dir="ltr"><<a href="mailto:ms275@duke.edu">ms275@duke.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div text="#000000" bgcolor="#FFFFFF">
Hello Peter, <br>
<br>
I was king of hoping you would reply, I actually saw that post and
your method of instantiating an object on vtkGL2PSExporter does work
after I do a from paraview.vtk import *<br>
<br>
from paraview.vtk import *<br>
exp = vtkInstantiator.CreateInstance("vtkGL2PSExporter")<br>
<br>
I have tried exp.Write() but I get an error indicating:
vtkGL2PSExporter: No render windows provided<br>
<br>
Then I did a couple of stabs in the dark with vtk.vtkRenderWindow()
to try an get a Render Window object but with no success, I get
attribute errors that I think are coming from me mixing up
namespaces. I am doing the import line above and from vtk import *,
I wonder if that is messing me up. I am going to read up on Python
to get to the bottom of this, but a quick hint is also appreciated.<br>
<br>
Thanks,<br>
Marcin<div><div></div><div class="h5"><br>
<br>
<br>
<br>
On 06/17/2010 12:30 PM, Peter Brady wrote:
<blockquote type="cite">Hello Marcin,<br>
<br>
Your question may have already been answered here: <a href="http://markmail.org/message/zd2nwsztxl4xwbhm" target="_blank">http://markmail.org/message/zd2nwsztxl4xwbhm</a>.<br>
<br>
However I think the last time I tried this was in 3.4 so things
may have changed. In my experience the vtkPostScript writer does
a better job although it has been quite a while since I've tried
gl2ps.<br>
<br>
Good luck,<br>
Peter.<br>
<br>
<div class="gmail_quote">On Thu, Jun 17, 2010 at 8:23 AM, Marcin
Sliwowski <span dir="ltr"><<a href="mailto:ms275@duke.edu" target="_blank">ms275@duke.edu</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div text="#000000" bgcolor="#FFFFFF"> Hello,<br>
<br>
I am trying to figure out how to save a visualization in
Paraview directly to ps/eps format.<br>
<br>
I have compiled from source paraview 3.6 with the
configuration option VTK_USE_GL2PS set to ON.<br>
<br>
There are many hits in the mailing list archives regarding
trying to use vtkGL2PSExporter to achieve this but I
couldn't find anything that I could make work.<br>
<br>
I know that I can just use WriteImage("test.eps",
Writer="vtkPostScriptWriter") in the python shell to get
what I am asking for.<br>
<br>
However, I wonder if GL2PS could provide a better looking
eps file, and having spent a couple of hours on this, I
would really like to get to the bottom of this.<br>
<br>
I have looked at the vtkGL2PSExporter class reference at <a href="http://www.vtk.org/doc/nightly/html/classvtkGL2PSExporter.html" target="_blank">http://www.vtk.org/doc/nightly/html/classvtkGL2PSExporter.html</a>
and from there followed the vtkGL2PSExporter (Tests) link
which provides examples of unit testing that is done on the
class. One example is actually titled "test vector EPS
output" <br>
<br>
However, even after doing a: from paraview import vtk in the
python shell, when I try to follow the test example and do
exp = vtk.vtkGL2PSExporter() I get the following error:<br>
<br>
<p style="margin: 0px; text-indent: 0px;"><span style="font-family: 'Courier'; font-size: 9pt; color: rgb(255, 0, 0);">AttributeError: 'module' object has no
attribute 'vtkGL2PSExporter'</span></p>
<br>
Can anyone shine any light on how to actually utilize the
vtkGL2PSExporter in Paraview to export an .eps, my
impression is that it has to be done in the Python Shell,
and I am not very familiar with Python.<br>
<br>
Thank You,<br>
Marcin Sliwowski<br>
</div>
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</div></div><pre cols="72">--
Marcin Sliwowski
Systems Programmer
Duke University - Pratt School of Engineering
Office: 919-660-8450
</pre>
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