Computed from aerial images acquired by UAV using Agisoft PhotoScan (digital photogrammetry software package). For details on the workflow read Vollgger & Cruden 2016.
Vollgger, S.A., Cruden, A.R., 2016. Mapping folds and fractures in
basement and cover rocks using UAV photogrammetry, Cape Liptrap and Cape
Paterson, Victoria, Australia. Journal of Structural Geology 85,
168–187. https://doi.org/10.1016/j.jsg.2016.02.012