visualpython-users

[Visualpython-users] event driven programming

[Mr G. K. <s40...@st...>]

Hi, I'm new to using Python and I haven't looked at VPython yet, but I
was just wondering about what it can do. Is it possible to create an
event-driven 3D model, as in it responds to pointing and clicking on the
actual graph itself (for instance, clicking on a ball makes it change
color, or move, or something like that)?

Re: [Visualpython-users] event driven programming

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

This code fragment displays a blue sphere named ball, then enters an 
infinite loop looking for mouse events. If you click on the ball, the 
ball is "picked" and its color is changed to red:

from visual import *
ball=sphere(color=color.blue)
while True:
    if scene.mouse.events:
        m = scene.mouse.getevent()
        if m.pick is ball:
            ball.color = color.red

Mr Gerard Kelly wrote:
> Hi, I'm new to using Python and I haven't looked at VPython yet, but I
> was just wondering about what it can do. Is it possible to create an
> event-driven 3D model, as in it responds to pointing and clicking on the
> actual graph itself (for instance, clicking on a ball makes it change
> color, or move, or something like that)?
>
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