From: aa8vb at vislab.epa.gov (Randall Hopper)
Date: Tue, 20 Apr 1999 15:28:37 GMT
Subject: Tkinter performance
In-Reply-To: <19990420083759.A133486@vislab.epa.gov>; from Randall Hopper on Tue, Apr 20, 1999 at 08:37:59AM -0400
References: <371B4B39.8B78BC7A@foreman.ac.rwth-aachen.de> <19990420083759.A133486@vislab.epa.gov>
Message-ID: <19990420112837.A136681@vislab.epa.gov>
X-UID: 473                                                  

Randall Hopper:
 |Greg Landrum:
 | |Suppose I need to draw a couple hundred circles and several
 | |thousand line segments (these are mostly connected, so I can
...
 | |1) Can Tkinter on a "typical" PC (say a P200) deliver a 
 | |"reasonable" update rate (a couple of frames per second 
 | |would probably cut it)? 
...
 |The plus for OpenGL is of course the use of its display lists which makes
 |redraws much faster.  Hopefully TkGS will take off in the Tk world and
 |OpenGL-accelerate the canvas by default when OpenGL is available.

A correction.  I assumed TkGS's plan to use OpenGL when available implied
it would use OpenGL display lists.  That's not the case.  I just swapped
mail with Frederic BONNET of TkGS and he said current plans don't call for
using OpenGL display lists in TkGS.

(I asked him to reconsider this design choice.)

Randall





