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Drawing scaled lines

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Drawing scaled lines

Subject: Drawing scaled lines
From: Mark Dawson <email@hidden>
Date: Fri, 7 Jan 2005 11:41:52 -0800

I want to draw line figures (lines, rects, etc) that are correctly scaled (i.e., 1" on screen is 1' in real life). I haven't quite figured out the question to ask to find the correct documentation…

I've found that NSSize is the basic size, which contains floats. From what I can tell, they are in "point" units. Do I just use the 72.0 points/inch constant, or is there a system call that I should use? Give than NSize uses floats, what does it mean to have 1.01 points--i.e., do fractional points show up?

Thanks,

mark
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