Posted by Rallaz on
URL: https://forum.librecad.org/Coordinates-possibility-of-not-using-tp5712525p5712538.html

Hi dxli,

The coordiante use appointed by cusa123 is a keyboard shortcut for polar relative coordinates.

Example to draw a 4 unist square,
In LibeCAD:
line, from point 1,1 to @4<0, to @4<90, @4<180, @4<270 (or close)
In ACAD:
Activate orthogonal mode.
line, from point 1,1 (move cursor to the left) to 4 <enter>(the same as @4<0), (cursor to top) to 4 <enter>,(cursor to right) to 4 <enter>, (cursor to bottom) to 4 <enter>.
That is: line, from point 1,1 to 4, to 4, to 4, to 4 (or close) and movements of mouse

In freehand mode the length are typed and the angle are get from current cursor position relative to "relative zero"