draw.Drawing.radius
draw.Drawing: D = radius (D, C, R)
draw.Drawing: D = radius (…, ANG, LABEL)
Append a radius dimension from a centre out to an arc.
The arguments are those of diam, and ANG is the direction
the leader runs in. The label is otherwise the letter R and the figure.
Use it for a fillet or any arc that is less than a full circle, where there is no diameter to measure across.
See also: diam, angdim, centremark
Source Code: draw.Drawing