clifford
clifford.cga
clifford.tools
g3c.
val_get_line_intersection
Gets the point of intersection of two orthogonal lines that meet Xdd = Ldd*no*Ldd + no Xddd = L3*Xdd*L3 Pd = 0.5*(Xdd+Xddd) P = -(Pd*ninf*Pd)(1)/(2*(Pd|einf)**2)[0]