Re: [Yade-users] [Question #275973]: Mannually Update Location of Components of Clumps
Question #275973 on Yade changed: https://answers.launchpad.net/yade/+question/275973 Christian Jakob proposed the following answer: If you really need to modify your clumps, I think O.bodies.releaseFromClump(0,3) O.bodies.addToClump([0],3) is the only way I know. -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #275973]: Mannually Update Location of Components of Clumps
Question #275973 on Yade changed: https://answers.launchpad.net/yade/+question/275973 Status: Answered => Solved MikeZhao confirmed that the question is solved: Thank you for your work~ -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #275973]: Mannually Update Location of Components of Clumps
Question #275973 on Yade changed: https://answers.launchpad.net/yade/+question/275973 Christian Jakob posted a new comment: Hi, I do not understand the reason this: > ## here is the example: > a = utils.sphere([0,0,0],1) > b = utils.sphere([0,0,1],1) > c = utils.sphere([0,0,2],1) > O.bodies.appendClumped([a,b,c]); > > ##Now, I want to mannually change the position of 'a': > a.state.pos = Vector3(0,0,100) Why dont you do the following? a = utils.sphere([0,0,100],1) b = utils.sphere([0,0,1],1) c = utils.sphere([0,0,2],1) O.bodies.appendClumped([a,b,c]) -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #275973]: Mannually Update Location of Components of Clumps
Question #275973 on Yade changed: https://answers.launchpad.net/yade/+question/275973 MikeZhao gave more information on the question: Actually I just tried to use the simplest example to describe the problem I've encountered: I am working on FEM-DEM coupling now, and I want to use DEM to build a contact detector for different FE meshes. So I first transferred elements of FEM into utils.tetraPoly in DEM. To make calculation more efficient, I made tetraPoly that belongs to the same FE mesh a clump. And I need to update the positions of those tetraPoly in DEM using the positions of FEM's elements, so I need to change the positions of those tetraPoly mannually.. -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #275973]: Mannually Update Location of Components of Clumps
Question #275973 on Yade changed: https://answers.launchpad.net/yade/+question/275973 Status: Open => Answered Hongyang Alex Cheng proposed the following answer: HI, It looks you are doing FEM/DEM modeling pioneered by Munjiza‘s (FEs within DEM). I am guessing the so-called PFacet element in Yade [1] would work in this case, but It seems you have to wait until it is ready in trunk. [1] https://www.researchgate.net/publication/281203746_Geotextiles_and_Geomembranes Cheers, Alex On Tue, Dec 1, 2015 at 4:07 AM, MikeZhao < question275...@answers.launchpad.net> wrote: > Question #275973 on Yade changed: > https://answers.launchpad.net/yade/+question/275973 > > MikeZhao gave more information on the question: > Actually I just tried to use the simplest example to describe the > problem I've encountered: > > I am working on FEM-DEM coupling now, and I want to use DEM to build a > contact detector for different FE meshes. So I first transferred > elements of FEM into utils.tetraPoly in DEM. To make calculation more > efficient, I made tetraPoly that belongs to the same FE mesh a clump. > And I need to update the positions of those tetraPoly in DEM using the > positions of FEM's elements, so I need to change the positions of those > tetraPoly mannually.. > > -- > You received this question notification because your team yade-users is > an answer contact for Yade. > > ___ > Mailing list: https://launchpad.net/~yade-users > Post to : yade-users@lists.launchpad.net > Unsubscribe : https://launchpad.net/~yade-users > More help : https://help.launchpad.net/ListHelp > -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
[Yade-users] [Question #275973]: Mannually Update Location of Components of Clumps
New question #275973 on Yade: https://answers.launchpad.net/yade/+question/275973 I did a test about mannually updating location of one clump's components: ## here is the example: a = utils.sphere([0,0,0],1) b = utils.sphere([0,0,1],1) c = utils.sphere([0,0,2],1) O.bodies.appendClumped([a,b,c]); ##Now, I want to mannually change the position of 'a': a.state.pos = Vector3(0,0,100) ##However I don't know what information of the clump that contains 'a' should be changed. ##If I use O.step(), then the clump will set the location of 'a' back. O.step() a.state.pos ##Output:Vector3(-8.529034726309396e-18,4.7316020007752715e-17,-1.1102230246251565e-16) ##According to those examples about Clump, I figured out one solution: That is to remove a from the clump and then add it back: O.bodies.releaseFromClump(0,3) O.bodies.addToClump([0],3) O.step() a.state.pos ##Output:Vector3(9.525366606588648e-15,1.6515434853037192e-14,100) ##This is doable, but it will make the calculation really slow when there are many components. So I want to know if you can figure out some better solution? Thanks for your precious time, and I'm looking forward to hearing from you! -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
