Figure 3
From: Faceted interfaces: a key feature to quantitative understanding of transformation morphology

Illustration of singular features represented by different regions within a square, rings and circles: D0-circle, zero set of dislocation; D1–ring, one set of dislocations; D>1–ring, more than one set of dislocations; Lf–circle, ledge-free; Kf-ring, kink-free ledges; M-square, matching pattern.