Fig. 1From: Potential path volume (PPV): a geometric estimator for space use in 3DGeometrical derivation of the Potential Path Volume (PPV). a The Potential Path Area (PPA) is a projection of the Space-Time Prism onto the two-dimensional movement space and can be generated by tracing the outline of all possible paths between the two movement points Pi and Pi + 1. b The Potential Path Volume (PPV) is a generalisation of PPA into a three-dimensional movement space and generated in a similar manner by tracing the outline of all possible paths between the two movement pointsBack to article page