Re: [Visualpython-users] Mouse events with multiple windows

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

Puzzling and unfamiliar. Works fine for me on a MacBook with VPython 
5.11, MacPython 2.6.2, OSX 10.5.7. There shouldn't be any difference in 
this area between VPython 5.1 and 5.11.

Could you please post a small test routine that fails for you? I 
successfully ran the following:

from visual.graph import *
scene.x = 0
scene.y = 400
scene.range = 4
b = box()
y = gcurve(color=color.cyan)
pick = None
while 1:
    rate(50)
    if scene.mouse.events:
        m = scene.mouse.getevent()
        if m.drag:
            dragpos = m.pickpos
            pick = m.pick
        elif m.drop:
            pick = None
    if pick:
        newpos = scene.mouse.pos
        if newpos != dragpos:
            pick.pos += newpos-dragpos
            dragpos = newpos
            y.plot(pos=(newpos.x,newpos.y))

Independent of the graph issue, I did notice that on Windows I didn't 
need the "rate(50)" but I did on the Mac, where otherwise dragging was 
sluggish.

Bruce Sherwood

Craig A. Struble, Ph.D. wrote:
> Hello,
>
> I'm trying to develop an interactive application with two windows: one  
> in which a user drags a sphere around; another which plots a graph  
> (using gdisplay and gcurve).
>
> When I use only the display, I can drag the sphere around fine, using  
> code similar to the toroid_drag.py example. When I add the graph  
> display, my first window doesn't receive left mouse button events  
> anymore and the sphere doesn't move. The order of window creation  
> doesn't change anything.
>
> How can I have two windows and interactivity? I'm using VPython 5.1,  
> MacPython 2.6.2, on OS X 10.5.7.
>
>     Craig
> --
> Craig A. Struble, Ph.D. | 369 Cudahy Hall  | Marquette University
> Associate Professor of Computer Science    | (414)288-3783
> Director, Master of Bioinformatics Program | (414)288-5472 (fax)
> http://www.mscs.mu.edu/~cstruble | cra...@ma...
>
>
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