Re: [Visualpython-users] Visual 5.0 release candidate now available

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

I wasn't even aware of there being routines in Visual 3 called 
scene.show() and scene.hide(). I can't find them mentioned in the Visual 
3 documentation. Where are they discussed?

The documented way to hide and show a window is by setting scene.visible.

I can't reproduce any errors with picking an object. The following 
routine correctly picks the appropriate object, no matter how I rotate 
the scene:

b = box(pos=(-1,0,0))
c = cylinder(pos=(1,0,0), axis=(0,1,0))
d = pyramid()
while 1:
     if scene.mouse.clicked:
         click = scene.mouse.getclick()
         print click.pick

Please post a complete routine that fails, since I can't see any failure.

One way to keep both Visual 3 and Visual 5 around on Windows is to 
install Python 2.4 and Visual 3 for it, in parallel to Python 2.5 with 
Visual 5. There aren't sizable differences between Visual 3 for Python 
2.4 and Python 2.5.

Alternatively, save the relevant contents of 
c:\Python25\Lib\site-packages (for Visual 3, numeric and numarray and 
Numeric.pth and visual; for Visual 5, numpy and 
numpy-1.2.1-py2.5.egg-info and visual). Then just swap them in or out.

Bruce Sherwood

Stef Mientki wrote:
> thanks for the great job Bruce.
> 
> A few problems:
> - left-mouse click only seems to work on a box. When you click on 
> "nothing" it returns None. When you click on something like a cylinder, 
> you get a box returned, probably the box under the cyclinder, tested with
>   if scene.mouse.clicked :
>     click = scene.mouse.getclick ()
>     print 'click',click.pick
> - scene.show is not available (I only read that scene.cursor.visible was 
> not available) and
> because I embed VPython, I also can't close my program, because 
> scene.hide doesn't work.
> 
> btw,
> when you want / need to go back from VPython 5 to VPython 3,
> what's the best way to achieve that ?
> Or is it even better to make a copy of Python, before installing VPython 5 ?
> 
> cheers,
> Stef
> 
> Bruce Sherwood wrote:
>> At vpython.org there is now available the Visual 5.0 release candidate 
>> for Windows, Intel Mac 10.5, and Linux. A version for PowerPC Mac is 
>> forthcoming. The Mac version does not use X11 nor depend on Fink.
>>
>> This new version has been tested against a sizable suite of existing 
>> programs, but it is likely that wider use will identify bugs to be 
>> fixed, so please report problems you may encounter.
>>
>> There remains a major component to be completed, which David Scherer is 
>> working on. There are various significant problems with IDLE, with 
>> particularly serious issues on the Mac (in fact, the MacPython IDLE has 
>> major mouse handling problems, which you can sometimes overcome by 
>> clicking in the title bar, and it doesn't even offer a configuration 
>> menu option for IDLE). If you find problems with IDLE, as you will at 
>> the very least on the Mac, you need not report them, as this is being 
>> worked on.
>>
>> Visual 5.0 was created by David Scherer and Bruce Sherwood. Jonathan 
>> Brandmeyer provided support in Visual 4beta for opacity, local lighting, 
>> and textures, and made some important architectural changes, but had to 
>> stop work on the project before it was completed.  Further development 
>> has led to API changes which are incompatible with the Visual 4beta 
>> release, so this release is called version 5 instead of 4.
>>
>> The late Arthur Siegel implemented dependence on the currently supported 
>> numpy library in place of Numeric, which is no longer supported. Hugh 
>> Fisher provided a big start on the native-mode Mac version. Michael 
>> Temkine fixed some bugs and implemented keyboard handling for Windows.
>>
>> Previous to Visual 4beta, Jonathan Brandmeyer made several major 
>> contributions to Visual 3, including changing the connection between 
>> Python and C++ from CXX, which was no longer supported, to the Boost C++ 
>> libraries, and implementing auto-configurable installations for Linux.
>>
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