Format distance tool label to centimeter.

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Muong
Muong on 10 Nov 2011
Can anyone tell me how to format the text in distance tool's label to centimeter?
Thanks
  2 Comments
Sven
Sven on 12 Nov 2011
The distance tool reports in pixels for a very good reason:
An image doesn't have *physical* distance by itself. Real-world distance is only applied after you answer this question:
"How big (in cm, for example) is each pixel in my image"?
This answer will be very different depending on the image. Take a picture of your house. How many cm in each pixel? Take a satellite picture of your neighbourhood. How many cm in each pixel?
What I suggest you do is determine the "scale" of your pixels, ie, that each pixel represents 0.1cm, then multiply that number by what the distance tool reports.
Jan
Jan on 13 Nov 2011
If this is posted as an asnwer, I'd vote for it.

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Answers (1)

Ashish Uthama
Ashish Uthama on 17 Sep 2012
" The distance tool reports in pixels for a very good reason:
An image doesn't have physical distance by itself. Real-world distance is only applied after you answer this question:
"How big (in cm, for example) is each pixel in my image"?
This answer will be very different depending on the image. Take a picture of your house. How many cm in each pixel? Take a satellite picture of your neighbourhood. How many cm in each pixel?
What I suggest you do is determine the "scale" of your pixels, ie, that each pixel represents 0.1cm, then multiply that number by what the distance tool reports. "

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