Definition
The file data structure of the Arc entity is as follows, consisting of only the three cartesian points defining the arc.
[TArc]
StartPoint=(x1,y1,z1)
MidPoint=(x2,y2,z2)
EndPoint=(x3,y3,z3)
Example
[TArc]
StartPoint=(0,0,-1)
MidPoint=(1,1,1)
EndPoint=(1.707,-0.707,0)