- only allow geometrically possible values for the different parameters - this way also fix a crash - fix a typo see https://forum.freecadweb.org/viewtopic.php?f=3&t=44467
- only allow geometrically possible values for the different parameters - this way also fix a crash - fix a typo see https://forum.freecadweb.org/viewtopic.php?f=3&t=44467