(sorry for previous message, I didnt see the full discussion) As Anton says, a clump is a collection of bodies (not only spheres), and each of them have a material. At the clump's scale, material properties would be useless.
Bruno On 19/01/12 11:56, Klaus Thoeni wrote: > I just creeated a clump in a "real" simulation , and indeed, material gives > 'None'. So clumps have no material. Anyone knows why? Makes no sense to me. > > Klaus > > On Thu, 19 Jan 2012 09:51:38 PM Anton Gladky wrote: >> Hmm, good question. >> Maybe not. They consist of "real" spheres and those spheres should >> have a material, I think. >> >> Anton >> >> On Thu, Jan 19, 2012 at 11:35 AM, Klaus Thoeni <[email protected]> > wrote: >>> Hi Anton, >>> >>> actually it is the third body and it's a clump (isClump=True). Clumps >>> should have a material too, shouldn't they? >>> >>> Klaus >>> >>> On Thu, 19 Jan 2012 06:31:09 PM Anton Gladky wrote: >>>> > Real getDampCoeff() { return material->damping; }; >>>> >>>> Can you check here a material existence? >>>> >>>> Anton >>>> >>>> On Thu, Jan 19, 2012 at 8:14 AM, Klaus Thoeni <[email protected]> >>> wrote: >>>>> Hi guys, >>>>> >>>>> can anyone help me on this? >>>>> >>>>> Klaus >>>>> >>>>> On Thu, 12 Jan 2012 06:03:16 PM Klaus Thoeni wrote: >>>>>> Hi guys, >>>>>> >>>>>> as discussed with Bruno in Barcelona I need different non-viscous >>>>>> damping coefficients for different materials. I introduced this >>>>>> capability by adding a variable damping to the base class material >>>>>> which is initialised with NaN. The body class has a function >>>>>> getDampCoeff() and in >>>>>> NewtonIntegrator I use this function in order to change the damping >>>>>> coefficients. When running some examples it seems that everything >>>>>> works fine. However, I just run 'yade --test' and it gives me a seg >>>>>> fault: >>>>>> >>>>>> testVelocity (yade.TestSimpleClump) >>>>>> Clump: velocities of member assigned by NewtonIntegrator ... >>>>>> Segmentation fault >>>>>> >>>>>> I think I now where the problem is. In NewtonIntegrator I call >>>>>> something like: >>>>>> >>>>>> if(!isnan(b->getDampCoeff())) dampcoeff=b->getDampCoeff(); >>>>>> >>>>>> where getDampCoeff() is defined in body.hpp as: >>>>>> >>>>>> Real getDampCoeff() { return material->damping; }; >>>>>> >>>>>> I think the test doesn't have a material and therefore I get the seg >>>>>> fault. Right? How can we fix this so that I can commit the code? >>>>>> >>>>>> Klaus >>>>> _______________________________________________ >>>>> Mailing list: https://launchpad.net/~yade-dev >>>>> Post to : [email protected] >>>>> Unsubscribe : https://launchpad.net/~yade-dev >>>>> More help : https://help.launchpad.net/ListHelp >>>> _______________________________________________ >>>> Mailing list: https://launchpad.net/~yade-dev >>>> Post to : [email protected] >>>> Unsubscribe : https://launchpad.net/~yade-dev >>>> More help : https://help.launchpad.net/ListHelp >>> _______________________________________________ >>> Mailing list: https://launchpad.net/~yade-dev >>> Post to : [email protected] >>> Unsubscribe : https://launchpad.net/~yade-dev >>> More help : https://help.launchpad.net/ListHelp >> _______________________________________________ >> Mailing list: https://launchpad.net/~yade-dev >> Post to : [email protected] >> Unsubscribe : https://launchpad.net/~yade-dev >> More help : https://help.launchpad.net/ListHelp > _______________________________________________ > Mailing list: https://launchpad.net/~yade-dev > Post to : [email protected] > Unsubscribe : https://launchpad.net/~yade-dev > More help : https://help.launchpad.net/ListHelp > -- _______________ Bruno Chareyre Associate Professor ENSE³ - Grenoble INP 11, rue des Mathématiques BP 46 38402 St Martin d'Hères, France Tél : +33 4 56 52 86 21 Fax : +33 4 76 82 70 43 ________________ _______________________________________________ Mailing list: https://launchpad.net/~yade-dev Post to : [email protected] Unsubscribe : https://launchpad.net/~yade-dev More help : https://help.launchpad.net/ListHelp
