Schlegel diagram

In geometry a Schlegel diagram is a projection of a polytope through a point just outside one of its facets. The diagram is named for Victor Schlegel, who in 1886 introduced this tool for studying combinatorial and topological properties of polytopes. In dimension 3, a Schlegel diagram is a projection of a polyhedron into a plane figure

Exaples of Schlegel diagrams

Exaples of Schlegel diagrams