Posted by Rallaz on Jan 20, 2012; 5:06pm
URL: https://forum.librecad.org/Where-I-can-find-LFF-specification-arcs-tp5158044p5161097.html

You have edited your post and he had not read all.
many people read these messages as mailing list and the editions are not sent

> A1 always means 180 degrees?
Yes

> How are denoted full circles? 360 degrees -  tangent of 1/4 of the arc is tangent 90 degrees, it is infinity
Yes, is infinite
My opinion is do not exist an arc of 360 degrees because a arc with 360 degrees is a circle and not an arc.

Circles are not supported, you can write 2 arcs with 180 dregrees.
To write a glyph with only a circle with radius 5:

[UTF8 code here]
0,5;10,5,A1;0,5,A1

What is your interest in the LFF fonts? if I may ask