New question #697874 on Yade:
https://answers.launchpad.net/yade/+question/697874
Hi, I am learning Yade-tutorial "setting up a simulation". I was trying to
run the "Gravity deposition" script in batch mode according to the
Yade-tutorial. However, an error occurred in this line of code "
utils.saveDataTxt(O.tags['d.id']+'.data.bz2') ".
The error message is as follows：
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "02-gravity-deposition-batchMode-3-queation.py", line 34, in
checkUnbalanced
utils.saveDataTxt(O.tags['d.id']+'.data.bz2')
AttributeError: 'module' object has no attribute 'saveDataTxt'
It seems that in my simulation, utils' object has no attribute 'saveDataTxt',
while in Yade-tutorial "setting up a simulation", the expression
"utils.saveDataTxt(O.tags['d.id']+'.data.bz2') " was used.
could you please help me with this problem.
Thank you very much！
My operating system is Ubuntu 16.04.
My codes are as follows:
############################## code #############################
# gravity deposition in box, showing how to plot and save history of data,
# and how to control the simulation while it is running by calling
# python functions from within the simulation loop
from yade import pack, plot
utils.readParamsFromTable(damping=.2)
from yade.params import table
O.bodies.append(geom.facetBox((.5,.5,.5),(.5,.5,.5),wallMask=31))
sp=pack.SpherePack()
sp.makeCloud((0,0,0),(1,1,1),rMean=.05,rRelFuzz=.5)
sp.toSimulation()
O.engines=[
ForceResetter(),
InsertionSortCollider([Bo1_Sphere_Aabb(),Bo1_Facet_Aabb()]),
InteractionLoop(
[Ig2_Sphere_Sphere_ScGeom(),Ig2_Facet_Sphere_ScGeom()],
[Ip2_FrictMat_FrictMat_FrictPhys()],
[Law2_ScGeom_FrictPhys_CundallStrack()]
),
NewtonIntegrator(gravity=(0,0,-9.81),damping=table.damping),
PyRunner(command='checkUnbalanced()',iterPeriod=1000),
PyRunner(command='addPlotData()',iterPeriod=100)
]
O.dt=.5*PWaveTimeStep()
O.trackEnergy=True
def checkUnbalanced():
if utils.unbalancedForce()<.05:
utils.saveDataTxt(O.tags['d.id']+'.data.bz2')
import sys
sys.exit(0)
def addPlotData():
plot.addData(i=O.iter,unbalanced=unbalancedForce(),**O.energy)
plot.plots={'i':('unbalanced',None,O.energy.keys)}
plot.plot()
O.run()
utils.waitIfBatch()
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