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Groups > comp.lang.python > #73216

Re: Lines on a tkinter.Canvas

From Gregory Ewing <greg.ewing@canterbury.ac.nz>
Newsgroups comp.lang.python
Subject Re: Lines on a tkinter.Canvas
Date 2014-06-12 23:38 +1200
Message-ID <bvthovFg8ldU1@mid.individual.net> (permalink)
References <mailman.11027.1402548495.18130.python-list@python.org>

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Pedro Izecksohn wrote:
> The Canvas' method create_line turns on at least 2 pixels. But I want to turn
> on many single pixels on a Canvas.

You could try using a 1x1 rectangle instead.

However, be aware that either of these will use quite a
lot of memory per pixel. If you are drawing a very large
number of pixels, this could cause performance problems.
In that case, you might want to use a different approach,
such as creating an image and telling the canvas to display
the image.

-- 
Greg

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Thread

Lines on a tkinter.Canvas Pedro Izecksohn <izecksohn@yahoo.com> - 2014-06-11 18:57 -0700
  Re: Lines on a tkinter.Canvas Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2014-06-12 23:38 +1200
    Re: Lines on a tkinter.Canvas Terry Reedy <tjreedy@udel.edu> - 2014-06-12 13:44 -0400
    Re: Lines on a tkinter.Canvas Pedro Izecksohn <izecksohn@yahoo.com> - 2014-06-12 13:33 -0700
    Re: Lines on a tkinter.Canvas Pedro Izecksohn <izecksohn@yahoo.com> - 2014-06-12 16:11 -0700
      Re: Lines on a tkinter.Canvas Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2014-06-13 12:31 +1200

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