what's the mean of “This is in 1/20th of a point.”? [closed]

StackOverflow https://stackoverflow.com/questions/11572661

Question

this is in the apache POI export Excel document ,I Don't know this sentence mean "This is in 1/20th of a point."; who can help me! I know in this sentence "1/20th" th is length unit,but I Don't know convert this unit;

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Solution

To quote another answer:

In applications, 1pt is equal to exactly 1/72th of an inch; in traditional print technically 72pt is 0.996264 inches, although I think you'll be forgiven for rounding it up!

How many pixels = 1pt depends on the resolution of your image. If your image is 72ppi (pixels per inch), then one point will equal exactly one pixel.

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