Hi Václav! > > pack.inAlignedBox just works for a box which is aligned to the coordinate > > system. Is there a way to get an arbitrary aligned box (e.g. by > > transforming the aligned box)? > > If you need the sphere packing, you can transform it with > https://www.yade-dem.org/sphinx/yade.pack.html#yade._packSpheres.SpherePack > .rotate . Let me know if that is not enough for your purposes.
Well, use pack.regularHexa(...) with pack.inAlignedBox. Is there a way to create such packings with pack.SpherePack()? Or how can I convert it in a SpherePack()? I tried to pass the regularHexa packing to the SpherePack, dosen't work. If this is going to work somehow it would be enough for my purposes. Example: pred=pack.inAlignedBox((10.,0.,0.),(20,20,1.5)) hexapack = pack.regularHexa(pred,radius=0.5,gap=0.0,color=(0,1,0)) #O.bodies.append(hexapack) sp=pack.SpherePack(hexapack) # not working, what should I use? sp.rotate((0,1,0),-pi/4) O.bodies.append([utils.sphere(c,r) for c,r in sp]) > The reason I did not create general box orientation is that checking > whether particle is inside or outside is more complicated; but now I > have the idea that it could be actually done by keeping corners and box > transformation in the predicate, then transforming points to be checked, > rather than checking points against true (non-aligned) boundaries. Hm, I am a newbie and I still have to understand the difference between the two packing options. By the way, what's the difference? Can't you just use predicates? > > Is there a way to generate particles on a plane (e.g. gts-surface)? > > Probably not directly (though you could create a thin volume for > instance). Can you be more specific as to what usage you have in mind? Thin volume works fine. Thanks Klaus _______________________________________________ Mailing list: https://launchpad.net/~yade-users Post to : [email protected] Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
