in my computer:
xrandr
Screen 0: minimum 320 x 200, current 1280 x 800, maximum 8192 x 8192
LVDS1 connected 1280x800+0+0 (normal left inverted right x axis y axis) 331mm x
207mm
>>> import Tkinter
>>> root=Tkinter.Tk()
>>> k=root.winfo_fpixels('1m')
>>> print k
3.78698224852
>>> print 1280/k
338.0
why it's 338 ,not 331mm??
------------------ 原始邮件 ------------------
发件人: "Martin B"<spooky...@tbs-software.com>;
发送时间: 2011年8月28日(星期天) 下午2:37
收件人: "tkinter-discuss"<tkinter-discuss@python.org>;
主题: Re: [Tkinter-discuss] one pixel=how many mm?
V Sun, 28 Aug 2011 10:10:30 +0800
"守株待兔" <1248283...@qq.com> napsáno:
> in tkinter ,you can express width in cm ,mm,inch,,pixel
> i want to know:
> one pixel=how many mm?
pixels per mm = root.winfo_fpixels('1m')
pixels per point = root.winfo_fpixels('1p')
pixels per inch = root.winfo_fpixels('1i')
pixels per cm = root.winfo_fpixels('1c')
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