User:Tomruen/Quasiregular and isogonal polygons

Quasiregular polygon
Quasiregular polygons alternation two types of edges are constructed as truncations of the regular star polygons. These polygons are isogonal (vertex-transitive).

Some definitions of quasiregular include the isogonal duals, i.e. isotoxal (edge-transitive) polygons with one type of edge, but alternate two types of vertices. Both isogonal and isotoxal variations have half the symmetry of the regular polygon, but the lines symmetry are on the edges in the first, and the vertices on the second.

A truncated regular polygon, t{p}, is geometrically the same as a regular {2p}.

A truncated regular star polygon, t{p/q}, is geometrically the same as a regular {2p/q} with odd q. Some others can be construcated as quasitruncated regular star polygon by reverse the orientation, expressed as {p/(p-q)}. The quasitruncation t'{p/q} is the same as the truncation {p/(p-q)}, and again is same as the regular {2p/(p-q)}, except with two types of edges, again reqiring (p-q) odd.

Isogonal star polygons
The quasiregular star polygon t{p/q} has a continuous isogonal transformation to t{p/(p-q)}. Some of the positions have overlapping vertices which can be seen as degenerate edges, or double-wound polygons.