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[kelaogui <question230986@xxxxxxxxxxxxxxxxxxxxx>]

New question #230986 on Yade:
https://answers.launchpad.net/yade/+question/230986

Hi,

I would like to make some modification to updateProperties function in clump.cpp line 99. First I wonder where the function is called. It seems not in NewtonIntegrator.cpp. 

I guess if this function works, the properties of the clump, including inertia and mass, will be computated in each step based on clump members' (sphere) mass and position. But I found if I assigned the inertia and mass directly to the clump using O.bodies[clumpid].state.inertia=xxx, it keeps constant in later steps, won't be updated via sphere mass and position. Does that mean we can just give a right mass and inertia to the clump and it will be used in the movement computation always?

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