Figure 12
From: Crystallisation in a two-dimensional granular system at constant temperature
(a) Particle configuration after a digital treatment of a photograph. (b) Particles are joined by lines forming a Delaunay triangulation. (c) Particles are coloured according to the number of neighbours, n. (d) Particles are coloured according to the sixfold orientational order parameter, \(\Psi _{6}\). (e) Particles are coloured according to the number of bounded neighbours, \(n_B\). (f) Particles are coloured according to the sixfold bond orientational order parameter, determined by the use of the bounded neighbours, \(\Psi ^{'}_{6}\).
