Tetrahedral Gray Code for Visualization of Genome Information
Figure 7
Development of a TGC (ABC) and its half turn (CDA) (a) and movements of the generator (b).
(a) The positions of identical cells have point symmetry around M as shown by dotted lines. (b) The generator AEM successively moves to FME, MFC, and CGM by half turns at X, X
, and X
, respectively. Each arrow inside the generator indicates its orientation. The initial triangle AEM and the last triangle CGM have point symmetry at M.