Figure 4
From: Shape analysis of railway ballast stones: curvature-based calculation of particle angularity
Weighted histograms illustrating the different angularity indices for two test bodies: (a) mean curvature \(H\): histogram weighted by vertex area, (b) scaled total curvature: \(\widehat{{t}_{c}}\), (c) scaled Willmore energy: \({\widehat{W}}_{e}\), (d) \({I}_{A}\) angularity index from19.
