Classes
 ClassDescription
 Cone The Cone class lets you create and display Cones.
 Cube The Cube class lets you create and display flat rectangle objects.
 Cylinder The Cylinder class lets you create and display Cylinders.
 PaperPlane The PaperPlane class lets you create a paper plane object.
 Plane The Plane class lets you create and display flat rectangle objects.
 Sphere The Sphere class lets you create and display spheres.