Fig. 4From: Potential path volume (PPV): a geometric estimator for space use in 3DPPV around a 3D CRW. The random walk consists of 40 uniform time steps, shown from red (time = 0) to blue (time = 39). The PPV is shown with a mesh isosurface and volumetric rendering. Note narrower and wider ellipsoids on segments with higher and lower speed respectivelyBack to article page