8000 Faster Text drawing needed · Issue #347 · matplotlib/matplotlib · GitHub
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Faster Text drawing needed #347
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@ddale

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@ddale

Original report at SourceForge, opened Wed Mar 21 08:03:30 2007

Drawing of plots with multiple matplotlib.Text instances is so slow as to be unusable for some applications, such as realtime multiple sequence alignment rendering/viewing (see attachment for a pylab example, resize plot window to see effect).

Some layman's thoughts:

  • Would it be possible to speed things up by implementing some kind of Text Collection?
  • Is antialiasing involved? An option to turn it off would be nice in that case.

SourceForge Comments

On Thu Sep 6 16:07:54 2007, mdboom wrote:

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It appears that the text is re-rendered to a newly allocated buffer each time the text is drawn. Perhaps some caching of text elements would help.

(Mostly just making a note of it for someone else to work this through, or until I have the time.)

SourceForge History

  • On Wed Mar 21 08:03:30 2007, by yohell: File Added: 221568: test.py

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