polytope: SchlegelDiagram Properties
A reference to the polytope being visualized.
As soon as the object hierarchy is properly implemented, this property becomes the
regular 'parent' link.
The facet number in the original polytope, giving the projection plane.
Zoom factor.
The intersection point of the projection facet and the view ray.
The center point of the projection, lying outside the polytope.
A point on the view ray lying inside the polytope.
Matrix of a projective transformation mapping the whole polytope into the
FACET
The points belonging to this facet stay fixed.
Coordinates in affine 3-space of the vertices which
correspond to a 3-dimensional (Schlegel-) projection of a 4-polytope.