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[nobody <question691701@xxxxxxxxxxxxxxxxxxxxx>]

New question #691701 on Yade:
https://answers.launchpad.net/yade/+question/691701

Hi all,

I want to know how to find the reference position of a facet.

I use the following code:
###################################
x0=0.2;y0=0.2;z0=0.4
cylinderIDS= O.bodies.append(geom.facetCylinder((x0,y0,0.4),
	radius=0.0125,height=0.05,orientation=Quaternion((1, 0, 0), 0),wallMask=4,segmentsNumber=6, angleRange=None,material=facetMat))
shaftcheck=O.bodies[-2].id

print("cylinder is :",cylinderIDS)
print("shaft is :   ",shaftcheck)
print("this is x reference: ",O.bodies[shaftcheck].state.refPos[0])
print("this is y reference: ",O.bodies[shaftcheck].state.refPos[1])
print("this is z reference: ",O.bodies[shaftcheck].state.refPos[2])
print("#####################################################################")
the results are:
('cylinder is :', [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11])
('shaft is :   ', 10)
('this is x reference: ', 0.2097597050800552)
('this is y reference: ', 0.19525366997093271)
('this is z reference: ', 0.38048058983988964)
#####################################################################
I don't know how to calculate the reference position.

best,
Yong




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