|  | Home If you're new to Python and VPython: Introduction A VPython tutorial Pictures of 3D objects What's new Classic VPython web site VPython license Python web site |  | # Convenient Defaults Objects can be specified with convenient defaults: arrow() is equivalent to arrow(pos=vector(0,0,0), axis=vector(1,0,0), radius=1) box() is equivalent to box(pos=vector(0,0,0), size=vector(1,1,1)) cone() is equivalent to cone(pos=vector(0,0,0), axis=vector(1,0,0), radius=1) curve() establishes an "empty" curve to which points can be appended cylinder() is equivalent to cylinder(pos=vector(0,0,0), axis=vector(1,0,0), radius=1) ellipsoid() is equivalent to ellipsoid(pos=vector(0,0,0), size=vector(1,1,1)) frame() establishes a frame with pos=vector(0,0,0) and axis=vector(1,0,0) helix() is equivalent to helix(pos=vector(0,0,0), axis=vector(1,0,0), radius=1, thickness=0.05, coils=5) pyramid() is equivalent to pyramid(pos=vector(0,0,0), size=vector(1,1,1), axis=vector(1,0,0)) ring() is equivalent to ring(pos=vector(0,0,0), axis=vector(1,0,0), radius=1) sphere() is equivalent to sphere(pos=vector(0,0,0), radius=1 )