Question #688818 on Yade changed:
https://answers.launchpad.net/yade/+question/688818
Status: Needs information => Open
Paolo gave more information on the question:
Let's suppose to define the second roller "rullo1" after deleting the
previous one "rullo" as follows. After the deleting, the simulation
generates 2 rollers in the position(0,0,0): one remains fixed and the
other one moves correctly. I don't know why it generates 2 rollers.
def updateRoller():
transEngine.velocity = vel
rotEngine.angularVelocity = angVel
rotEngine.zeroPoint += Vector3(0,1,0)*vel*O.dt
if rotEngine.zeroPoint[1]>l3-r:
for t in range(min(idsr),max(idsr)+1):
rotEngine.zeroPoint *= 0
transEngine.velocity = 0
rotEngine.angularVelocity = 0
O.bodies.erase(t)
rullo1 =
geom.facetCylinder((0,0,0),radius=r,height=d,orientation=Quaternion((0,1,0),pi/2),wallMask=7,segmentsNumber=50,material=Mat1)
O.bodies.append(rullo1)
global idsr1
idsr1 = [r2.id for r2 in rullo1]
checker.command='step2()'
def step2():
combEngine.ids=idsr1
transEngine.velocity = vel
rotEngine.angularVelocity = angVel
rotEngine.zeroPoint += Vector3(0,1,0)*vel*O.dt
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