Peter Pearson wrote:
I'm trying to get started with pyvtk, the Python interface
to the Visualization Toolkit, but there's obviously
something important that I haven't figured out after an
embarrassingly long morning of googling around. When I run
sample pyvtk code (example1.py, from
http://cens.ioc.ee/cgi-bin/viewcvs.cgi/python/pyvtk/examples/example1.py),
nothing graphical happens, but some text files appear named
example1.vtk and example1b.vtk. Guessing that I need to
feed one of these to vtk, I tried "vtk <example1.vtk" and
"vtk example1.vtk", but those result in (different) error
messages that I think mean example1.vtk is not the language
that vtk expects. Simply running "vtk" (apparently 4.0)
gets a prompt that has no help command, and "man vtk" just
tells me it's like "wish", and "man wish" doesn't address
what to do with a vtk file.
What key piece am I missing?
pyvtk is not the Python interface to VTK. It is for the creation of VTK files.
The vtk(1) command is a Tcl shell with the VTK libraries loaded (I believe).
Read the VTK documentation for information on the Tcl interface if you really
want to use it. The Python interface is also included in the VTK sources,
although it might not have been built on your machine. You have to enable it
when you build VTK itself. The Python interface is essentially the same as the
C++ interface. There are Python examples in the VTK source tree.
--
Robert Kern
"I have come to believe that the whole world is an enigma, a harmless enigma
that is made terrible by our own mad attempt to interpret it as though it had
an underlying truth."
-- Umberto Eco
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