Question #293216 on Yade changed: https://answers.launchpad.net/yade/+question/293216
Jan Stránský proposed the following answer: Hi Mohsen, if you have different question than the original problem, please open a new question. your 2) comes from 1). I always use randomDensePack with spheresInCell parameter, usually with value between 300 and 2000. Then your example (memoizeDb, too) works OK. cheers Jan 2016-05-05 9:17 GMT+02:00 mohsen <[email protected]>: > Question #293216 on Yade changed: > https://answers.launchpad.net/yade/+question/293216 > > mohsen posted a new comment: > Hi Felipe and Jan > Jan i also have some trouble with making a predicate! > generally when i using randomDensePack, i encounter some errors or > warnings that i can not understand their meanings! > Jan can you help us about "memoizeDb"? I think some errors is because of > this. > > in the following is my simple code and warnings: > > ####### > ## construct the predicate first > pred=pack.inCylinder(centerBottom=(0,0,-.1),centerTop=(0,0,.1),radius=.05) > ## alternatively: pack.inHyperboloid((0,0,-.1),(0,0,.1),.05,.03) > > ## pack the predicate with spheres (will be explained later) > spheres=pack.randomDensePack(pred,radius=8.5e-3) > > ## add spheres to simulation > O.bodies.append(spheres) > > ################ > Warnings: > WARN > /build/yadedaily-1.20.0-126-e3271e8~trusty/pkg/dem/SpherePack.cpp:104 > makeCloud: porosity must be >0, changing it for you. It will be ineffective > if rMean>0. > /usr/lib/x86_64-linux-gnu/yadedaily/py/yade/pack.py:296: FutureWarning: > The default behavior will change; specify returnSpherePack=True for the new > behavior, and False to get rid of this warning (your code will break in the > future, however). The returned SpherePack object can be added to the > simulation using SpherePack.toSimulation() > warnings.warn('The default behavior will change; specify > returnSpherePack=True for the new behavior, and False to get rid of this > warning (your code will break in the future, however). The returned > SpherePack object can be added to the simulation using > SpherePack.toSimulation()',category=FutureWarning) > /usr/lib/x86_64-linux-gnu/yadedaily/py/yade/pack.py:301: UserWarning: > Packing's dimension > (Vector3(0.09220547603362886,0.09204759935856582,0.1700020579236124)) > doesn't fully contain dimension of the predicate (Vector3(0.1,0.1,0.2)). > if dimP[0]>dimS[0] or dimP[1]>dimS[1] or dimP[2]>dimS[2]: > warnings.warn("Packing's dimension (%s) doesn't fully contain dimension of > the predicate (%s)."%(dimS,dimP)) > > ############ > > 2- another problem is that the spheres in generated pack have overlap!! > How can we avoid this? ( I know that the over lap is removed if we give a > number to spheresInCell, i.e activating periodic condition. but is there > any other way to have a aperiodic scene without overlap) > Is there another method to construct a cylinder filled with spheres with > no initial overlap? > > -- > 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 : [email protected] > 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 : [email protected] Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
