Question #702750 on Yade changed:
https://answers.launchpad.net/yade/+question/702750
孙灿 posted a new comment:
I tried it and found that the code had no errors, but no z-value output for the
uppermost particles.
My code is as follows:
from yade import pack,plot
O.bodies.append(geom.facetBox((0.05, 9, 10), (0.1, 9, 10), wallMask=63))
sp = pack.SpherePack()
sp.makeCloud(Vector3(0.05,0,0),Vector3(0.05,18,20), rMean=0.1, rRelFuzz=1/3)
sp.toSimulation()
(xdim,ydim,zdim)= aabbDim()
print("Height is ",zdim)
for b in O.bodies:
if isinstance(b.shape,Sphere):
b.state.blockedDOFs='ZxY'
b.shape.color=(3.,2.,1.)
circleRadius=1.5
circleCenter = Vector3(0.05,6,6)
circleRadius1=1.5
circleCenter1 = Vector3(0.05,12,6)
#
O.engines = [
ForceResetter(),
InsertionSortCollider([Bo1_Sphere_Aabb(), Bo1_Facet_Aabb()]),
InteractionLoop(
# handle sphere+sphere and facet+sphere collisions
[Ig2_Sphere_Sphere_ScGeom(), Ig2_Facet_Sphere_ScGeom()],
[Ip2_FrictMat_FrictMat_FrictPhys()],
[Law2_ScGeom_FrictPhys_CundallStrack()]
),
NewtonIntegrator(gravity=(0, 0, -9.81), damping=0.4),
# call the checkUnbalanced function (defined below) every 2 seconds
PyRunner(command='checkUnbalanced()', realPeriod=2),
# call the addPlotData function every 200 steps
PyRunner(command='addPlotData()', iterPeriod=100)
]
O.dt = 0.5 * PWaveTimeStep()
# enable energy tracking; any simulation parts supporting it
# can create and update arbitrary energy types, which can be
# accessed as O.energy['energyName'] subsequently
O.trackEnergy = True
# if the unbalanced forces goes below .05, the packing
# is considered stabilized, therefore we stop collected
# data history and stop
def checkUnbalanced():
if unbalancedForce() < .05:
O.pause()
plot.saveDataTxt('bbb.txt.bz2')
for b in O.bodies:
if isinstance(b.shape,Sphere):
#b.state.blockedDOFs='zxy'
b.state.vel=(0,0,0)
b.state.angVel=(0,0,0)
d = (b.state.pos - circleCenter).norm() # distance of
circleCenter and center of "b"
d1 = (b.state.pos - circleCenter1).norm() # distance of
circleCenter and center of "b"
if d < circleRadius:
O.bodies.erase(b.id)
if d1 < circleRadius1:
O.bodies.erase(b.id)
#coords = [b.state.pos for b in O.bodies]
#print(b.state.pos)
#zMax = max(b.state.pos[2] for b in O.bodies)
O.bodies.append(sphere(center=(0.05,7.38276367683319,6.11900825105632),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,7.33147912281321,6.33262379212493),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,7.24740913386372,6.53558669963537),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,7.13262379212493,6.72289935320946),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,6.98994949366117,6.88994949366117),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,6.82289935320946,7.03262379212493),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,6.63558669963537,7.14740913386372),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,6.43262379212493,7.23147912281322),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,6.21900825105632,7.28276367683319),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,6,7.3), radius=.1019,
fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,5.78099174894368,7.28276367683319),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,5.56737620787507,7.23147912281322),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,5.36441330036463,7.14740913386372),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,5.17710064679054,7.03262379212493),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,5.01005050633883,6.88994949366117),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,4.86737620787507,6.72289935320946),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,4.75259086613629,6.53558669963537),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,4.66852087718679,6.33262379212493),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,4.61723632316681,6.11900825105632),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,4.6,5.9), radius=.1019,
fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,4.61723632316681,5.68099174894368),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,4.66852087718678,5.46737620787507),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,4.75259086613629,5.26441330036464),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,4.86737620787507,5.07710064679054),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,5.01005050633883,4.91005050633883),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,5.17710064679054,4.76737620787507),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,5.36441330036463,4.65259086613629),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,5.56737620787507,4.56852087718679),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,5.78099174894368,4.51723632316681),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,6,4.5), radius=.1019,
fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,6.21900825105632,4.51723632316681),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,6.43262379212493,4.56852087718679),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,6.63558669963537,4.65259086613629),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,6.82289935320946,4.76737620787507),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,6.98994949366117,4.91005050633883),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,7.13262379212493,5.07710064679054),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,7.24740913386372,5.26441330036464),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,7.33147912281321,5.46737620787507),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,7.38276367683319,5.68099174894368),
radius=.1019, fixed=True,color=(1.,1.,1.)))
O.bodies.append(sphere(center=(0.05,7.4,5.9), radius=.1019,
fixed=True,color=(1.,1.,1.)))
zMax = max(b.state.pos[2] for b in O.bodies)
(xdim,ydim,zdim)= aabbDim()
print("Height is ",zdim)
# collect history of data which will be plotted
def addPlotData():
# each item is given a names, by which it can be the unsed in plot.plots
# the **O.energy converts dictionary-like O.energy to plot.addData
arguments
plot.addData(i=O.iter, unbalanced=unbalancedForce(), **O.energy)
# define how to plot data: 'i' (step number) on the x-axis, unbalanced force
# on the left y-axis, all energies on the right y-axis
# (O.energy.keys is function which will be called to get all defined energies)
# None separates left and right y-axis
plot.plots = {'i': ('unbalanced', None, O.energy.keys)}
# show the plot on the screen, and update while the simulation runs
plot.plot()
O.saveTmp()
# to see it
from yade import qt
qt.Controller()
qt.View()
qt.View()
Cheers
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