def modifyLayer():
if O.iter < thres:
return
if O.iter > thres:
O.pause()
for i in s:
if O.bodies[i].state.pos[1] > box_height or O.bodies[i].state.pos[0]>box_length:
#delete spheres that are above the target height
O.bodies.erase(i)
#also,delete the corresponding ids in the id list
s.remove(i)
export.text('sample.txt')
def checkHeight():
global lastDens
M = 0
for i in spheres:
if O.bodies[i].state.pos[2] > sample_h:
O.bodies.erase(i)
spheres.remove(i)
else:
M += O.bodies[i].state.mass
dens = M / (l * d * sample_h)
print "Density: %.3f" % dens
print "Sample Height: %.3f" % max(
[O.bodies[i].state.pos[2] for i in spheres])
if dens == lastDens: #if the density doesn't change anymore, export the file
export.text('dens%dYoung%.1fGPaL%dH%d.txt' %
(dens, young / 1e9, l, sample_h))
else:
lastDens = dens
minDim = min(dim[0], dim[1], dim[2])
# define discretisation
radius = minDim / (2 * sizeRatio)
print center, dim, ' | minDim=', minDim, ' | diameter=', 2 * radius
### regular packing
#O.bodies.append(pack.regularHexa(pred,radius=radius,gap=0.,color=(0.9,0.8,0.6)))
#O.bodies.append(pack.regularOrtho(pred,radius=radius,gap=0.,color=(0.9,0.8,0.6)))
sp = SpherePack()
# random packing
sp = pack.randomDensePack(
pred,
radius=radius,
rRelFuzz=0.3,
useOBB=True,
memoizeDb='/tmp/gts-triax-packings.sqlite',
returnSpherePack=True) # cropLayers=5 (not to use)
# periodic random packing
#sp=pack.randomDensePack(pred,radius=radius,rRelFuzz=0.3,useOBB=True,spheresInCell=2000,memoizeDb='/tmp/gts-triax-packings.sqlite',returnSpherePack=True) # cropLayers=5 (not to use)
sp.toSimulation(color=(0.9, 0.8, 0.6))
#### import mesh
O.bodies.append(
pack.gtsSurface2Facets(surface, color=(0.8, 0.8, 0.8), wire=True))
#### export packing
export.text(mesh + '_' + str(int(sizeRatio)) + '.spheres')
#### VIEW
from yade import qt
qt.View()
maxCorner = (10, 10, 10)
center = (5, 5, 5)
normal = (1, 1, 1)
from yade import pack, export
pred = pack.inAlignedBox(Vector3.Zero, maxCorner)
O.bodies.append(
pack.randomDensePack(pred, radius=1., rRelFuzz=.5, spheresInCell=500))
export.text('/tmp/test.txt')
# text2vtk and text2vtkSection function can be copy-pasted from yade/py/export.py into separate py file to avoid executing yade or to use pure python
export.text2vtk('/tmp/test.txt', '/tmp/test.vtk')
export.text2vtkSection('/tmp/test.txt',
'/tmp/testSection.vtk',
point=center,
normal=normal)
# now open paraview, click "Tools" menu -> "Python Shell", click "Run Script", choose "pv_section.py" from this directiory
# or just run python pv_section.py
# and enjoy :-)
O.bodies[n.id1].state.jointNormal1=-jointNormalRef
#### for visualization:
#bj=0
#vert=(0.,1.,0.)
#hor=(0.,1.,1.)
#for o in O.bodies:
#if o.state.onJoint==True : # or o.shape.name=='Facet':
##if o.shape.name=='Facet':
##o.shape.wire=True
##o.state.pos+=(0,50,0)
##bj+=1
#if o.state.jointNormal1.dot(hor)>0 :
##o.state.pos+=(0,50,0)
#o.shape.color=jointcolor1
#elif o.state.jointNormal1.dot(hor)<0 :
##o.state.pos+=(0,55,0)
#o.shape.color=jointcolor2
#if o.mat.type>2 :
#bj+=1
#o.shape.color=jointcolor5
##print o.state.jointNormal.dot(vert)
#### Save text file with informations on each sphere
export.text(packing+'_'+DFN+'.spheres')
export.textExt(packing+'_'+DFN+'_jointedPM.spheres',format='jointedPM')
O.wait()
O.bodies[n.id1].state.jointNormal1=-jointNormalRef
#### for visualization:
#bj=0
#vert=(0.,1.,0.)
#hor=(0.,1.,1.)
#for o in O.bodies:
#if o.state.onJoint==True : # or o.shape.name=='Facet':
##if o.shape.name=='Facet':
##o.shape.wire=True
##o.state.pos+=(0,50,0)
##bj+=1
#if o.state.jointNormal1.dot(hor)>0 :
##o.state.pos+=(0,50,0)
#o.shape.color=jointcolor1
#elif o.state.jointNormal1.dot(hor)<0 :
##o.state.pos+=(0,55,0)
#o.shape.color=jointcolor2
#if o.mat.type>2 :
#bj+=1
#o.shape.color=jointcolor5
##print o.state.jointNormal.dot(vert)
#### Save text file with informations on each sphere
export.text(packing+'_'+DFN+'.spheres')
export.textExt(packing+'_'+DFN+'_jointedPM.spheres',format='jointedPM')
O.wait()
def write():
export.text('randomPacking'+str(int(2000*Rsreal))+'mm'+str(amount))
O.pause()
maxCorner = (10,10,10)
center = (5,5,5)
normal = (1,1,1)
from yade import pack, export
pred = pack.inAlignedBox(Vector3.Zero,maxCorner)
O.bodies.append(pack.randomDensePack(pred,radius=1.,rRelFuzz=.5,spheresInCell=500))
export.text('/tmp/test.txt')
# text2vtk and text2vtkSection function can be copy-pasted from yade/py/export.py into separate py file to avoid executing yade or to use pure python
export.text2vtk('/tmp/test.txt','/tmp/test.vtk')
export.text2vtkSection('/tmp/test.txt','/tmp/testSection.vtk',point=center,normal=normal)
# now open paraview, click "Tools" menu -> "Python Shell", click "Run Script", choose "pv_section.py" from this directiory
# or just run python pv_section.py
# and enjoy :-)
if surface.is_closed(): pred=pack.inGtsSurface(surface) # get characteristic dimensions aabb=pred.aabb() dim=pred.dim() center=pred.center() minDim=min(dim[0],dim[1],dim[2]) # define discretisation radius=minDim/(2*sizeRatio) print center, dim, ' | minDim=', minDim, ' | diameter=', 2*radius ### regular packing #O.bodies.append(pack.regularHexa(pred,radius=radius,gap=0.,color=(0.9,0.8,0.6))) #O.bodies.append(pack.regularOrtho(pred,radius=radius,gap=0.,color=(0.9,0.8,0.6))) sp=SpherePack() # random packing sp=pack.randomDensePack(pred,radius=radius,rRelFuzz=0.3,useOBB=True,memoizeDb='/tmp/gts-triax-packings.sqlite',returnSpherePack=True) # cropLayers=5 (not to use) # periodic random packing #sp=pack.randomDensePack(pred,radius=radius,rRelFuzz=0.3,useOBB=True,spheresInCell=2000,memoizeDb='/tmp/gts-triax-packings.sqlite',returnSpherePack=True) # cropLayers=5 (not to use) sp.toSimulation(color=(0.9,0.8,0.6)) #### import mesh O.bodies.append(pack.gtsSurface2Facets(surface,color=(0.8,0.8,0.8),wire=True)) #### export packing export.text(mesh+'_'+str(int(sizeRatio))+'.spheres') #### VIEW from yade import qt qt.View()
######################################################################
# A script for prepare loose packing of macro particles
######################################################################
from yade import export
dim = (15, 15, 15) # dimensions for makeCloud
radius = 1
fuzz = 0.2
# use of makeCloud function
sp = pack.SpherePack()
sp.makeCloud((0, 0, 0), dim, rMean=radius, rRelFuzz=fuzz, seed=1)
sp.toSimulation()
# save the result
export.text('/tmp/cloud.txt')
try:
from yade import qt
qt.View()
except:
pass
def write():
export.text('randomPacking' + str(int(2000 * Rsreal)) + 'mm' + str(amount))
O.pause()
def position():
export.text(OUT + '_' + str(O.iter))
######################################################################
# A script for prepare loose packing of macro particles
######################################################################
from yade import export
dim = (15,15,15) # dimensions for makeCloud
radius = 1
fuzz = 0.2
# use of makeCloud function
sp = pack.SpherePack()
sp.makeCloud((0,0,0), dim, rMean=radius, rRelFuzz=fuzz, seed=1)
sp.toSimulation()
# save the result
export.text('/tmp/cloud.txt')
try:
from yade import qt
qt.View()
except:
pass
