[vtkusers] How to use vtkinteraction in Python

[Prabhu Ramachandran]

>>>>> "yqtan" == "yqtan" <yqtan at msn.com> writes:

    yqtan> I want to write a "Mace.py" in python. When I "import
    yqtan> vtkinteractor", the python interpreter reprorts
    yqtan> "ImportError: No module named vtkinteraction". But "import
    yqtan> vtk" is OK.

    yqtan> I am using Python 2.0, vtk 4.0. "Mace.tcl" could be find at
    yqtan> "vtk_src\examples\GUI\Tcl\Mace.tcl" in vtk source code.

There is no module called vtkinteraction.  To use an interactor with
Python you need to first pick a GUI toolkit -- lets say you choose
Tkinter.  If you want to use a vtkTkRenderWindowInteractor then import
vtk.tk.vtkTkRenderWindowInteractor.  This should be inside the
Wrapping/Python/vtk/tk/ directory.  If this directory/file does not
exist under VTK 4.0 you should consider using a recent CVS version or
a nightly.  You can also use VTK's standard vtkRenderWindowInteractor.
In order to use this you dont need to have Tkinter etc.  Simply try
this:

import vtk

rw = vtk.vtkRenderWindowInteractor()

# etc. etc.

cheers,
prabhu