[PyOpenGL-Users] Request for help for updating OpenGL view

[Douglas S. B. <db...@br...>]

PyOpenGL-users,

I was wondering if someone could point me to some example code, or give me
some hints. Here's what I need to do:

I have a GUI that has one Python thread updating some values (a robot's
sensors actually), and I'd like to have an OpenGL view of the robot updated as
often as possible without stressing the computer too much. The OpenGL should
draw the robot and sensors, but also allow rotating/zooming/etc the view of
the robot via the mouse, or programmatically.

I have a hacky version working that uses the do_AutoSpin method, but sets
xspin and yspin to 0 so that it doesn't really spin it, but it does update the
window:

   def refresh(self):
      self.win.autospin = 1
      self.win.xspin = 0
      self.win.yspin = 0
      self.win.after(500, self.win.do_AutoSpin)

Besides being hacky, this has some problems:

 1. it uses about 98% of a CPU
 2. If you change the view (rotate/zoom the robot) in the OpenGL window, you
have to run the above refresh() method again

Can any help point me to the proper way of having this functionality?

Thanks in advance!

-Doug

-- 
Douglas S. Blank,       Assistant Professor         
db...@br...,          (610)526-6501
Bryn Mawr College,  Computer Science Program
101 North Merion Ave,  Park Science Building
Bryn Mawr, PA 19010 dangermouse.brynmawr.edu