Re: [Visualpython-users] Experimental 64-bit VPython for Windows based on wxPython

[Bruce S. <Bru...@nc...>]

In response to a question, I expect to build a version for 32-bit Python.

Bruce Sherwood


On Tue, Dec 25, 2012 at 11:45 PM, Bruce Sherwood <Bru...@nc...>wrote:

> On the Windows download page at vpython.org is an experimental VPython
> based on the cross-platform library wxPython. It requires the 64-bit
> version of Python 2.7 (link provided).
>
> This experimental version differs from the older VPython (5.74 and before)
> by eliminating nearly all platform-dependent code and by eliminating the
> threading associated with rendering. This makes it possible for the first
> time to run on 64-bit Python on the Mac and will simplify maintenance and
> further development of VPython. It is also likely to make possible adding
> standard buttons, menus, etc. to a window that contains a VPython scene.
>
> The new version makes one essential change to the syntax of VPython
> programs. Now, an animation loop MUST contain a rate statement, which
> limits the number of loop iterations per second as before but also when
> appropriate (about 30 times per second) updates the 3D scene and handles
> mouse and keyboard events. Without a rate statement, the scene will not be
> updated until and unless the loop is completed.
>
> The heart of the user-interface code (creating windows and handling
> events) is the file site-packages/visual_common/create_display.py. It is
> imported by visual/__init__.py and by /vis/__init__.py; the difference is
> that for convenience visual imports math and numpy, whereas vis doesn't.
>
> Please report issues to the Github repository
> https://github.com/BruceSherwood/vpython-wx, or to the VPython mailing
> list.
>
> Steve Spicklemire is developing simplified installers for all platforms,
> including Mac and Linux, which should be available in the near future. I've
> posted a Windows installer using older tools, to offer people an early look
> at the new VPython. A Python 3 version of wxPython has not yet been
> released, so we can't yet produce a Python 3 version of VPython based on
> wxPython.
>
> Bruce Sherwood
>