N=4 2R-Virtual Wheel (Vers.-B)

Exact line symmetry and most orthodox version.

elegant version. exact line symmetry is supported..cf. N=4 2R-Virtual Wheel (original version) Line symmetry tool 2 sets exists. Pink tool: BA (black) and B'A (Blue) are line-symmetry. Green tool: BE (Black) and B'E' (Blue) are line-symmetry. Here, BE // AM', B'E' // AJ' ( Above Green tool Antiparallelogram edge ratio sample is 1 : 2 . )