Question #688485 on Yade changed: https://answers.launchpad.net/yade/+question/688485
Status: Needs information => Open Zoheir Khademian gave more information on the question: Hi Jan, Thanks for the quick reply. My Yade version is 20191220-2907 and Ubuntu version is 18.04.3 and Python version is 2.7.17 Here is the MWE, which is only a "O.run()" different from the trunk example. from __future__ import print_function from builtins import range from yade import pack,export,qt #define material for all bodies: #define engines: O.engines=[ ForceResetter(), InsertionSortCollider([Bo1_Sphere_Aabb(),Bo1_Box_Aabb()]), InteractionLoop( [Ig2_Sphere_Sphere_ScGeom(),Ig2_Box_Sphere_ScGeom()], [Ip2_FrictMat_FrictMat_FrictPhys()], [Law2_ScGeom_FrictPhys_CundallStrack()] ), NewtonIntegrator(damping=0.7,gravity=[0,0,-10]) ] #create a box: id_box = O.bodies.append(box((0,0,0),(2,2,.1),fixed=True)) #### show how to use appendClumped(): #create 2 clumps: clump1=O.bodies.appendClumped([\ sphere([0,0,1], radius=0.5),\ sphere([0.2,0,1], radius=0.5)\ ]) clump2=O.bodies.appendClumped([\ sphere([3,1,2], radius=0.5),\ sphere([3.2,1,2], radius=0.5)\ ]) #get clump ids: id_clump1 = clump1[0] id_clump2 = clump2[0] #definition for getting informations from all clumps: def getClumpInfo(): for b in O.bodies: if b.isClump: print('Clump ',b.id,' has following members:') keys = list(b.shape.members.keys()) for ii in range(0,len(keys)): print('- Body ',keys[ii]) print('inertia:',b.state.inertia) print('mass:',b.state.mass,'\n') #### show how to use addToClump(): #create a new sphere: id_new=O.bodies.append(sphere([0,0.2,1], radius=0.5)) print('\nSTATE before adding sphere to clump ------------') getClumpInfo() #add a sphere to the clump: O.bodies.addToClump([id_new],id_clump1) print('\nSTATE after adding sphere to clump ------------') getClumpInfo() #add a clump to a clump: O.bodies.addToClump([id_clump2],id_clump1) print('\nSTATE after adding the second clump to clump ------------') getClumpInfo() #try to add clump member to a clump (should give error message): #O.bodies.addToClump(1,id_clump1) #try to add clump to the same clump (should give error message): #O.bodies.addToClump(id_clump1,id_clump1) O.dt=1e-6 print('\nPress Play button ... ') renderer = qt.Renderer() qt.View() O.run() -- 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