Re: [Yade-dev] Sign convention or name O.energy['gravWork']

2020-04-29 Thread Bruno Chareyre
It's all fine provided that you keep it backward-compatible. Else it's worst than the initial pb in my view. Cheers Bruno Le mer. 29 avr. 2020 09:37, Jerome Duriez a écrit : > Thanks for feedback, what about just a change in name: gravWork -> > gravPotential ? > > There would be no more doubts

Re: [Yade-dev] Sign convention or name O.energy['gravWork']

2020-04-29 Thread Jerome Duriez
Thanks for feedback, what about just a change in name: gravWork -> gravPotential ? There would be no more doubts whether it is work by gravity or work against gravity ; and decrease of that quantity during a fall would seem more logical to me (and others ?) I agree otherwise with your

Re: [Yade-dev] Sign convention or name O.energy['gravWork']

2020-04-28 Thread Bruno Chareyre
Hi Jérôme, I feel like it is a question of perspective, and undecidable overall. Is it work by gravity or work against gravity? You can find the two meanings easily. It's still a work in both cases. OTOH it seems these energies are underdocumented overall. I did not find a list of available

Re: [Yade-dev] Sign convention or name O.energy['gravWork']

2020-04-20 Thread Jerome Duriez
I now think the most logical would be to keep this expression with a minus sign [*], but rename 'gravWork' into 'gravPotential' (like we have 'elastPotential'). It would reconcile for me the name with the coded expression, and be more logical with the existence of O.energy.total() function