Line based graphic in canvas (vectorgraphic?) scale incorrectly on HDMI monitor.

[jonas.thornvall at gmail.com]

Den lördagen den 21:e december 2013 kl. 20:56:54 UTC+1 skrev Ned Batchelder:
> On 12/21/13 2:12 PM, jonas.thornvall at gmail.com wrote:
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> > Den l�rdagen den 21:e december 2013 kl. 20:03:17 UTC+1 skrev Ned Batchelder:
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> >> On 12/21/13 1:30 PM, jonas.thornvall at gmail.com wrote:
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> >>> Is there a way to make linebased graphic used in canvas scale correct on any monitor?
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> >>> I run in 1920*1080 on a Philips TV used as monitor does it matter, lines tend to get longer vertical then horizontal?
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> >>> Strange is i really do not see it writing out recangles.
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> >> I'm not sure how we can help without seeing any code.  There's no
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> >> information here that we can use to make a concrete suggestion.
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> >> --
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> >> Ned Batchelder, http://nedbatchelder.com
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> > A vertical and horisontal line of same length will be plottet out like this.
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> > There is really no code to show yet, i just write out some lines and noted that writing out a verital line of length 400 is longer then a horisontal line of same length e.g.
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> > line(100,100,500,100); is shorter
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> > line(300,100,300,500); is longer
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> > __________
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> Sounds like you don't have square pixels.  Either use a monitor which 
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> does, or adjust your coordinates to take the shape of the pixel into 
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> account, or try different resolution settings to see if one of them does 
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> have square pixels.  Also, the settings on the monitor matter also, you 
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> may be able to adjust them to correct the shape of the pixel.
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> -- 
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> Ned Batchelder, http://nedbatchelder.com

It is weird because it seem to be compensated writing out rectangles, but not for linegraphics.