TODO:
Quadrics
-
circle -> circle, circle_ - [-] hyperbola -> hyperbola_upper
-
linepair -
interline -
cline -
parabola -
sphere !568 (closed) -
hyperboloid_one_sheeted -
hyperboloid_two_sheeted -
paraboloid_elliptic -
paraboloid_hyperbolic -> hyperbolic_paraboloid -
cylinder_elliptic -
cylinder_hyperbolic -
cylinder_paraboloic -
cone !568 (closed) -
line for later -
planes_intersecting -
planes_parallel -
plane
Miscellaneous
-
cylinder !568 (closed)