axis.m: restore plotbox and data aspect ratios with 'axis normal' (bug #41581). Use manual plotboxaspectratio for 'axis equal' for Matlab compatibility. * axis.m: Use a manual plotboxaspectration of [5 4 4] for 'axis equal' for Matlab compatibility. For 'axis normal', first set an arbitrary plotboxaspectratio and then set plotboxaspectratio and dataaspectratio to "auto" such that a re-calculation is forced.