Hi there, The note: Let me recall that Dem3Dof is unmaintained and links to many known and unfixed bugs (see below). If some of you are using this class without problems, good for them (still, the fact that Yade doesn't crash doesn't mean that the result is correct...). But for long terms development, another geometry class should be preferred, else the old bugs will re-surface one day or the other.
The question: A long standing bug in Yade is the different force sign convention between ScGeom and Dem3Dof. If Dem3Dof is unmaintained, there is no reason to keep its sign convention as the default. Reverting the default will let everybody run simulations using the maintained code without the need to add "revertForce=True" in scripts. The problem is - in turn - those still using Dem3Dof would have to specify "revertForce=False" in their script, so one question is how many users would be affected. I can see Jan impacted by such change. I think Anton is also using Dem3Dof but not periodic BCs (?), which is the only place where revertForce really matters. Is there somebody else using Dem3Dof? Another geometry class is L3Geom, which uses the same sign convention as Dem3Dof, but it is (I think) not used currently. It is still possible to revert the sign in L3 without much risk, so that there would be no more sign conflicts in maintained code (assuming somebody will develop and maintain the L3 framework). What do you all think? Bruno https://bugs.launchpad.net/yade/+bug/585898 (concluding that Dem3Dof is unmaintained and that we stop reporting bugs on it) https://bugs.launchpad.net/yade/+bug/585771 https://bugs.launchpad.net/yade/+bug/399963 https://bugs.launchpad.net/yade/+bug/675955 -- _______________ Bruno Chareyre Associate Professor ENSE³ - Grenoble INP Lab. 3SR BP 53 - 38041, Grenoble cedex 9 - France Tél : +33 4 56 52 86 21 Fax : +33 4 76 82 70 43 ________________ _______________________________________________ Mailing list: https://launchpad.net/~yade-dev Post to : [email protected] Unsubscribe : https://launchpad.net/~yade-dev More help : https://help.launchpad.net/ListHelp
