Comments on: Python 2.5 enabled VTK 5.4 Windows binaries

By: Germán Larraín

Germán Larraín — Tue, 13 Mar 2012 02:40:02 +0000

Awesome! Thanks a lot.

I did have some trouble though. For those not expert (like me), you may enter this line in the python interpreter to solve the PYTHONPATH issues:
base_dir = 'C:\\VTK-5.4.2-with-python\\' sys.path.append(os.path.dirname(base_dir + 'bin\\')) sys.path.append(os.path.dirname(base_dir + 'lib\\site-packages\\'))
Just replace “base_dir” with whatever you used to extract the provided zip file. Remember, use double slashes! And the path to a directory must end with slashes! Silly mistakes that could make you suffer :)

Good luck

By: cpbotha

cpbotha — Wed, 13 Oct 2010 11:18:10 +0000

Could be that infovis is not built in this release. Have you tried the Python 2.6 VTK 5.4 binaries? You could also try Christoph Gohlke’s brilliant repository of libraries: http://www.lfd.uci.edu/~gohlke/pythonlibs/

By: Henry Heberle

Henry Heberle — Wed, 13 Oct 2010 00:29:13 +0000

I can’t use vtkParallelCoordinatesRepresentation. Why? =\

By: Henry Heberle

Henry Heberle — Tue, 12 Oct 2010 23:57:40 +0000

Your tips didn’t work for me. So I thought and did this:

import sys
sys.path.append(“C:\Program Files\VTK\bin”)
sys.path.append(“C:\Program Files\VTK\lib\site-packages”)

By: Kadir

Kadir — Sun, 07 Mar 2010 18:16:12 +0000

Thanks for the quick response.

Multiple checks with paths, no chance.

Simple import error message: ImportError: No module named vtk

I’ll see what I can do with DRE.

Kadir

By: cpbotha

cpbotha — Sun, 07 Mar 2010 17:44:16 +0000

That’s correct, no compilation required.

If it’s not working, there must be something wrong with your environment setup. Double and triple check all your paths. What error messages are you seeing?

Have you considered trying the DRE (DeVIDE Runtime Environment)? It’s much easier to get going, as it automatically sets the environment up every time. See this youtube clip: http://www.youtube.com/watch?v=xEbYw73y3pM

By: Kadir

Kadir — Sun, 07 Mar 2010 16:21:03 +0000

Hi there,

After doing all what you have said above, I still can not import vtk with Python 2.5

When you say binaries for windows, I understand no build, or make, or cmake necessary, correct?

All path, pythonpath updates are done, additional .pth file points to VTK (which is already under Python\lib\site-packages), even the vcredist_x86 package installed…

What could be missing? Where should I start looking at?

Thanks

Kadir

By: Peter

Peter — Fri, 04 Dec 2009 08:59:41 +0000

VTK guru here. But not really, because I have no experience with overriding base VTK classes in Python. C++ is your way to go, I guess. If you want access to protected variables it’s just a matter of making a new class that exposes them… Unfortunately, because a pure-Python solution to this problem would be great!

By: cpbotha

cpbotha — Fri, 04 Dec 2009 08:01:42 +0000

@Dave:

That’s a good question. :) We have a number of own small VTK C++ extensions where we can also override base VTK classes, for example vtktudoss.googlecode.com. With the new DRE you can easily add these to the existing VTK Python support (see http://code.google.com/p/devide/wiki/AddingVTKLibsToBinaryDeVIDE ).

I know another VTK guru that might have another pure-Python approach for deriving new widgets. I’ll get him to look at your comment as well!

By: Dave

Dave — Fri, 04 Dec 2009 00:21:04 +0000

Thanks a lot for these binaries. I’ve been using them for a while, but I’ve recently felt the need to alter/expand on the base actors (such as adding dimension extension lines to vtkLeaderActor2D).

Can you provide any tips on accessing protected variables of a base class when inheriting and overriding methods (such as RenderOpaqueGeometry in actor classes)?

Or, is adding additional actors to base vtkActor classes not something that can be done at the Python level?