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[Daniela <question163736@xxxxxxxxxxxxxxxxxxxxx>]

Question #163736 on Yade changed:
https://answers.launchpad.net/yade/+question/163736

    Status: Solved => Open

Daniela is still having a problem:
Hi Anton,
I took a look in the example that you sent me and tried to change it. My goal is that I can change for example the angular velocity of the RotationEngine at each iterPeriod. I tried it:

rotvel=0
O.engines=[
	#SubdomainBalancer(colorize=True,initRun=True,iterPeriod=100),
	ForceResetter(),
	InsertionSortCollider([Bo1_Sphere_Aabb(),Bo1_Facet_Aabb(),Bo1_Wall_Aabb()],label='collider'),
	InteractionLoop(
		[Ig2_Sphere_Sphere_ScGeom(),Ig2_Facet_Sphere_ScGeom(),Ig2_Wall_Sphere_ScGeom()],
		[Ip2_FrictMat_FrictMat_FrictPhys()],
		[Law2_ScGeom_FrictPhys_CundallStrack()],
	),
	GravityEngine(gravity=(1e-2,1e-2,-1000)),
	NewtonIntegrator(damping=.1,exactAsphericalRot=True),
	RotationEngine(
		ids=rotateIDs,
		angularVelocity=rotvel,
		rotationAxis=[0,-1,0],
		rotateAroundZero=1,
		zeroPoint=[-7.0,-6.0,-5.0]),
	HarmonicMotionEngine(A=[0,0,0.5], f=[0,0,20.0], fi = [0.0,0.0,pi], ids = vibrationPlate),
	HarmonicRotationEngine(A=0.2, f=100.0, fi = pi, rotationAxis=[1.0,0.0,0.0], rotateAroundZero = True, zeroPoint = [-15.0,3.0,-7.0], ids = vibrationRotationPlate), 
     PyRunner(command='rotation()',iterPeriod=100) 
]
def rotation():
    global rotvel 
    rotvel = 100

but the value of rotvel seems to be always 0. How can I change then a variable located inside of the Engine?
Thanks, Daniela

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