updated geometry.py and onetime.py
updated geometry.py and onetime.py

FrancoisRheaultUS/dipy,FrancoisRheaultUS/dipy,matthieudumont/dipy,villalonreina/dipy,StongeEtienne/dipy,matthieudumont/dipy,StongeEtienne/dipy,nilgoyyou/dipy,nilgoyyou/dipy,villalonreina/dipy