53 lines
1.8 KiB
Plaintext
53 lines
1.8 KiB
Plaintext
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From: da at ski.org (David Ascher)
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Date: Mon, 19 Apr 1999 16:24:30 GMT
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Subject: Tkinter performance
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In-Reply-To: <371B4B39.8B78BC7A@foreman.ac.rwth-aachen.de>
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References: <371B4B39.8B78BC7A@foreman.ac.rwth-aachen.de>
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Message-ID: <Pine.WNT.4.04.9904190922260.229-100000@rigoletto.ski.org>
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Content-Length: 1494
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X-UID: 410
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On Mon, 19 Apr 1999, Greg Landrum wrote:
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> While I'm at it, I have a performance question about Tkinter.
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>
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> I am thinking about doing a python/Tkinter port of a program
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> which currently uses C/Xlib (or C/quickdraw on the Mac). I'd
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> love to get this to work because then I would (finally) have
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> a version which could work under Win95/98/NT. But I'm worried
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> about performance issues.
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>
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> The program does 3D graphics (molecular/crystal visualization
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> and orbital plots). I handle all of the perspective/transformation
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> stuff myself, so I don't need any 3D functionality. I do need
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> something which can draw reasonably quickly however.
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>
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> Suppose I need to draw a couple hundred circles and several
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> thousand line segments (these are mostly connected, so I can
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> use things like XDrawLines to cut down function calls) at
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> every update.
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> 1) Can Tkinter on a "typical" PC (say a P200) deliver a
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> "reasonable" update rate (a couple of frames per second
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> would probably cut it)?
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> 2) Is there anyway to do double-buffering to avoid flashing
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> during redraws?
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>
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> I am guessing that the answer to both of these of these questions
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> is "No", but I'd love to hear a contrary opinion.
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I'd suggest using PyOpenGL with the NumPy extension. In combination, it
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can be quite fast, by pushing the loops to C extension modules. The only
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portability problem is to the mac -- there is no Togl widget for the mac
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yet.
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http://starship.python.net/~da/PyOpenGL
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--david ascher
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