Visual 5.12 released for Windows (Python 2.6), Mac (Python 2.6, Intel, OSX 10.4
and 10.5), and Linux.
As far as I can tell, you can install Visual 5.12 without uninstalling Visual 5.11.
New: frame_to_world and world_to_frame functions for converting between frame
and "world" coordinates, stimulated by a suggestion of Robert Xiao. See the
documentation on frames.
Fixes: bug in frame manipulations (pointed out by Robert Xiao), and a bug in
helix that didn't permit creating additional attributes when creating a helix.
There are significant improvements to VIDLE thanks to Guilherme Polo working in
a 2009 Google Summer of Code project, including the ability to edit and test
without first having to save a file (you're warned about whether to save the
file when you exit), and the shell window coming forward when there is an error,
to alert you.
The VIDLE startup icon on the Mac (in /Applications/VPython) has been simplified
and is probably more robust.
The attentive reader will note that I haven't built installers for Python 2.5
nor PowerPC Macs, for which older installers are still available. Please let me
know whether this is a problem, and/or whether you would be willing to take
responsibility for building installers for these lesser-used configurations (I
could teach you what's involved).
Bruce Sherwood
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