Compute geodesic ball area and perimeter at location defined by geodists for all radii.
geodesic.ballstats(mesh, geodist, sample_at_radii)tmesh3d instance
vector of geodesic distance for current mesh vertex under consideration (no need for the index)
double vector, the different ball radii for which to perform the computation
named list with entries: 'ball_area': vector of double, ball area at each sample radius. 'ball_perimeter': vector of double, ball perimeter at each sample radius.