Where can I find this command?
The MarkFoci command places point objects at focus points of elliptic, hyperbolic, and parabolic curves.
Command-line options
DrawAxis
Adds a line that links the foci of ellipses and hyperbolas and connects the parabola focus to the vertex.
See also
Rhinoceros 5 © 2010-2015 Robert McNeel & Associates. 17-Sep-2015
