# coding: utf-8
# 2009 © Václav Šmilauer <eudoxos@arcig.cz>
"Test and demonstrate use of PeriTriaxController."
from woo import *
from woo import pack,log,qt
log.setLevel('PeriTriaxController',log.TRACE)
O.periodic=True
O.cell.refSize=(.1,.1,.1)
#O.cell.Hsize=Matrix3(0.1,0,0, 0,0.1,0, 0,0,0.1)
sp=pack.SpherePack()
radius=5e-3
num=sp.makeCloud(Vector3.Zero,O.cell.refSize,radius,.2,500,periodic=True) # min,max,radius,rRelFuzz,spheresInCell,periodic
O.bodies.append([utils.sphere(s[0],s[1]) for s in sp])


O.engines=[
	ForceResetter(),
	InsertionSortCollider([Bo1_Sphere_Aabb()],nBins=5,sweepLength=.05*radius),
	InteractionLoop(
		[Ig2_Sphere_Sphere_Dem3DofGeom()],
		[Ip2_FrictMat_FrictMat_FrictPhys()],
		[Law2_Dem3DofGeom_FrictPhys_CundallStrack()]
	),
	PeriTriaxController(dynCell=True,mass=0.2,maxUnbalanced=0.01,relStressTol=0.02,goal=[-1e4,-1e4,0],stressMask=3,globUpdate=5,maxStrainRate=[1.,1.,1.],doneHook='triaxDone()',label='triax'),
	NewtonIntegrator(damping=.2),
]

phase=0
def triaxDone():
	global phase
	if phase==0:
		print 'Here we are: stress',triax['stress'],'strain',triax['strain'],'stiffness',triax['stiff']
		print 'Now shearing.'
		O.cell.velGrad[1,2]=6.0
		triax.stressMask=7
		triax['goal']=[-1e4,-1e4,-1e4]
		phase+=1
	elif phase==1:
		print 'Here we are: stress',triax['stress'],'strain',triax['strain'],'stiffness',triax['stiff']
		#print 'Done, pausing now.'
		#O.pause()
		
O.dt=utils.PWaveTimeStep()
O.run(7000);
qt.View()
#r=qt.Renderer()
#r.bgColor=1,1,1
O.wait()

O.cell.velGrad[1,2]=0
O.cell.velGrad[2,1]=-6
O.run(5000);
O.wait()

O.cell.velGrad[1,2]=6
O.cell.velGrad[2,1]=0
O.run(5000);
