Additional Status Codes for Arcs must have direction control.
For example how to control the direction for "Arc using centerpoint and point on the final radius"? It's not written in GDL Manual the algorithms for Additional Status Codes, but I discovred that they are just drawn in long arc way. So and how if angle=180? In such cases I have no way, as just using EPS=0.0000001 script.
Example:
delta=0.5*(h^2+a^2/4-b^2)/(h-b)
r=b-delta
EPS=0.00001
h=h+eps
!Arched
WALLNICHE 6, 1, 2+16,
0,0,1, dep,
-a/2,0,1+2+16+64,
a/2,0,1+2+16+64,
a/2,h,1+2+16+64,
0, delta, 900+1+2+16+64,
-a/2,h,3000+1+2+16+64,
-a/2,0,-1
