Posted by Fran_iii on Aug 19, 2022; 9:18pm
URL: https://forum.librecad.org/Three-Questions-about-Dimensions-tp5721990p5721991.html

OK, I think I have this figured out... after some experimentation.

Options > Drawing Preference > Length Factor should be set to 1.
So if you paper is 8.5x11 inches...

And you draw a rectangle 8.5x11...

And you set Options > Drawing Preference > Length Factor = 1
And you draw a horizontal dimension along the top from the left corner to the right corner
The Dimension will read 8.5000 ... aka the width in inches

If you change the Options > Drawing Preference > Length Factor to be 2
The Dimension will read 17 ... 2 times 8.5

Wasn't obvious to me by inspection... until I experimented some with Dimension options.
I'm sure it is clear somewhere in the doc's but after an hour+ of reading & Googling I just decided to start experimenting over and over... and after awhile I got it.

Regarding... Question 3:

Under Drawing Preferences
What is X & Y Spacing?
When I change it I see no visible change on the drawing

I still haven't had any luck finding out what that does... but I'll bang on it some more until I get or until some kind soul gives me a tip.