Below is a paper explaining of detect contact between ellipses in 2D: http://www.geometrictools.com/Documentation/IntersectionOfEllipses.pdf
Maybe extents in 3D are possible, or I saw something about the distance between 2 ellipses in 3D in the list below: http://www.geometrictools.com/Documentation/Documentation.html Luc Václav S a écrit : >> the second one is difficult, I think you need to create your own >> element with its correlating constitutive models and a lot of coding >> involved... >> > Yes, that would be quite complicated - think only contact detection of 2 > ellipsoids in 3d. I would suggest in that case using clumps (rigid > aggregates) of 2 or more spheres that would overlap in such a way that > the overall share would more or less approximate what you need. > > For the different particle size: have a look at TriaxialTest, it > generates spheres at random of diameter .5 and 1.5 IIRC. > > Václav > _______________________________________________ > Yade-users mailing list > [email protected] > https://lists.berlios.de/mailman/listinfo/yade-users > -- Luc Sibille, Université de Nantes - Laboratoire GeM, maître de conférence Adresse/address: IUT de Saint Nazaire - Département de Génie-Civil 58, rue Michel-Ange - BP 420 44606 Saint-Nazaire Cedex France Tel: +33 2 40 17 81 78 Fax: +33 2 40 17 81 60 _______________________________________________ Yade-users mailing list [email protected] https://lists.berlios.de/mailman/listinfo/yade-users
