Figure 21
(a) The 3V24V1 (2×1, 4×21) a chain graph and the corresponding unit-distance graph in which nt:ng = 1:2; (b) the 3V24V1 (4×1, 3×2) chain graph and the corresponding unit-distance graph in which nt:ng = 1:1. Green dashed lines show the repeat unit of each unit-distance graph. Legend as in Fig. 18. |