def run():
fets_eval = FETS2D4Q( mats_eval = MATS2DElastic() )
# Discretization
fe_grid = FEGrid( coord_max = ( 10., 4., 0. ),
shape = ( 10, 3 ),
fets_eval = fets_eval )
bcg = BCDofGroup( var = 'u', value = 0., dims = [0],
get_dof_method = fe_grid.get_left_dofs )
bcg.setup( None )
print 'labels', bcg._get_labels()
print 'points', bcg._get_mvpoints()
mf = MFnLineArray( #xdata = arange(10),
ydata = array( [0, 1, 2, 3] ) )
right_dof = 2
tstepper = TS( sdomain = fe_grid,
bcond_list = [ BCDofGroup( var = 'u', value = 0., dims = [0, 1],
get_dof_method = fe_grid.get_left_dofs ),
BCDofGroup( var = 'u', value = .005, dims = [1],
time_function = mf.get_value,
get_dof_method = fe_grid.get_right_dofs ) ],
)
# Add the time-loop control
tloop = TLoop( tstepper = tstepper, KMAX = 300, tolerance = 1e-4,
tline = TLine( min = 0.0, step = 1.0, max = 1.0 ) )
U_k = tloop.eval()
print 'dir', tloop.rtrace_mngr.dir
# RTrace should not contain backward link to RTraceMngr
# The definition should be forward.
#
rt1 = RTraceGraph( sd = tstepper.sdomain,
rmgr = tstepper.rtrace_mngr,
name = 'Fi,right over u_right (iteration)' ,
var_y = 'F_int', idx_y = right_dof,
var_x = 'U_k', idx_x = right_dof,
record_on = 'update' )
print 'dir', rt1.dir
def example_with_new_domain():
from ibvpy.api import \
TStepper as TS, RTraceGraph, RTraceDomainListField, \
RTraceDomainListInteg, TLoop, \
TLine, BCDof, IBVPSolve as IS, DOTSEval
from ibvpy.mats.mats2D.mats2D_elastic.mats2D_elastic import MATS2DElastic
from ibvpy.mats.mats2D.mats2D_sdamage.mats2D_sdamage import MATS2DScalarDamage
from ibvpy.api import BCDofGroup
mats_eval = MATS2DElastic()
fets_eval = FETS2D4Q(mats_eval = mats_eval)
#fets_eval = FETS2D4Q(mats_eval = MATS2DScalarDamage())
print fets_eval.vtk_node_cell_data
from ibvpy.mesh.fe_grid import FEGrid
from ibvpy.mesh.fe_refinement_grid import FERefinementGrid
from ibvpy.mesh.fe_domain import FEDomain
from mathkit.mfn import MFnLineArray
# Discretization
fe_grid = FEGrid(coord_max = (10., 4., 0.),
shape = (10, 3),
fets_eval = fets_eval)
bcg = BCDofGroup(var = 'u', value = 0., dims = [0],
get_dof_method = fe_grid.get_left_dofs)
bcg.setup(None)
print 'labels', bcg._get_labels()
print 'points', bcg._get_mvpoints()
mf = MFnLineArray(#xdata = arange(10),
ydata = array([0, 1, 2, 3]))
right_dof = 2
tstepper = TS(sdomain = fe_grid,
bcond_list = [ BCDofGroup(var = 'u', value = 0., dims = [0, 1],
get_dof_method = fe_grid.get_left_dofs),
# BCDofGroup( var='u', value = 0., dims = [1],
# get_dof_method = fe_grid.get_bottom_dofs ),
BCDofGroup(var = 'u', value = .005, dims = [1],
time_function = mf.get_value,
get_dof_method = fe_grid.get_right_dofs) ],
rtrace_list = [
RTraceGraph(name = 'Fi,right over u_right (iteration)' ,
var_y = 'F_int', idx_y = right_dof,
var_x = 'U_k', idx_x = right_dof,
record_on = 'update'),
RTraceDomainListField(name = 'Stress' ,
var = 'sig_app', idx = 0,
position = 'int_pnts',
record_on = 'update'),
# RTraceDomainListField(name = 'Damage' ,
# var = 'omega', idx = 0,
#
# record_on = 'update',
# warp = True),
RTraceDomainListField(name = 'Displacement' ,
var = 'u', idx = 0,
record_on = 'update',
warp = True),
RTraceDomainListField(name = 'Strain energy' ,
var = 'strain_energy', idx = 0,
record_on = 'update',
warp = False),
RTraceDomainListInteg(name = 'Integ strain energy' ,
var = 'strain_energy', idx = 0,
record_on = 'update',
warp = False),
# RTraceDomainListField(name = 'N0' ,
# var = 'N_mtx', idx = 0,
# record_on = 'update')
]
)
# Add the time-loop control
#global tloop
tloop = TLoop(tstepper = tstepper, KMAX = 300, tolerance = 1e-4,
tline = TLine(min = 0.0, step = 1.0, max = 1.0))
#import cProfile
#cProfile.run('tloop.eval()', 'tloop_prof' )
#print tloop.eval()
#import pstats
#p = pstats.Stats('tloop_prof')
#p.strip_dirs()
#print 'cumulative'
#p.sort_stats('cumulative').print_stats(20)
#print 'time'
#p.sort_stats('time').print_stats(20)
tloop.eval()
# Put the whole thing into the simulation-framework to map the
# individual pieces of definition into the user interface.
#
from ibvpy.plugins.ibvpy_app import IBVPyApp
app = IBVPyApp(ibv_resource = tloop)
app.main()
def peval(self):
'''Evaluation procedure.
'''
#mv = MATS1DDamageView( model = mats_eval )
#mv.configure_traits()
right_dof_m = self.fe_grid_m[-1, -1].dofs[0, 0, 0]
right_dof_fb = self.fe_grid_fb[-1, -1, -1, -1].dofs[0, 0, 0]
# Response tracers
A = self.A_m + self.A_f
self.sig_eps_m = RTraceGraph(name='F_u_m',
var_y='F_int',
idx_y=right_dof_m,
var_x='U_k',
idx_x=right_dof_m,
transform_y='y / %g' % A)
# Response tracers
self.sig_eps_f = RTraceGraph(name='F_u_f',
var_y='F_int',
idx_y=right_dof_fb,
var_x='U_k',
idx_x=right_dof_fb,
transform_y='y / %g' % A)
self.eps_m_field = RTraceDomainListField(name='eps_m',
position='int_pnts',
var='eps_app',
warp=False)
self.eps_f_field = RTraceDomainListField(name='eps_f',
position='int_pnts',
var='mats_phase2_eps_app',
warp=False)
# Response tracers
self.sig_m_field = RTraceDomainListField(name='sig_m',
position='int_pnts',
var='sig_app')
self.sig_f_field = RTraceDomainListField(name='sig_f',
position='int_pnts',
var='mats_phase2_sig_app')
self.omega_m_field = RTraceDomainListField(name='omega_m',
position='int_pnts',
var='omega',
warp=False)
self.shear_flow_field = RTraceDomainListField(name='shear flow',
position='int_pnts',
var='shear_flow',
warp=False)
self.slip_field = RTraceDomainListField(name='slip',
position='int_pnts',
var='slip',
warp=False)
avg_processor = None
if self.avg_radius > 0.0:
n_dofs = self.fe_domain.n_dofs
avg_processor = RTUAvg(sd=self.fe_m_level,
n_dofs=n_dofs,
avg_fn=QuarticAF(radius=self.avg_radius))
ts = TStepper(
u_processor=avg_processor,
dof_resultants=True,
sdomain=self.fe_domain,
bcond_list=[ # define the left clamping
BCSlice(var='u',
value=0.,
dims=[0],
slice=self.fe_grid_fb[0, 0, 0, :]),
# BCSlice( var = 'u', value = 0., dims = [0], slice = self.fe_grid_m[ 0, 0 ] ),
# loading at the right edge
# BCSlice( var = 'f', value = 1, dims = [0], slice = domain[-1, -1, -1, 0],
# time_function = ls ),
BCSlice(var='u',
value=self.final_displ,
dims=[0],
slice=self.fe_grid_fb[-1, -1, -1, :],
time_function=self.time_function),
# BCSlice( var = 'u', value = self.final_displ, dims = [0], slice = self.fe_grid_m[-1, -1],
# time_function = self.time_function ),
# fix horizontal displacement in the top layer
# BCSlice( var = 'u', value = 0., dims = [0], slice = domain[:, -1, :, -1] ),
# fix the vertical displacement all over the domain
BCSlice(var='u',
value=0.,
dims=[1],
slice=self.fe_grid_fb[:, :, :, :]),
# # Connect bond and matrix domains
BCDofGroup(var='u',
value=0.,
dims=[0],
get_link_dof_method=self.fe_grid_fb.get_bottom_dofs,
get_dof_method=self.fe_grid_m.get_all_dofs,
link_coeffs=[1.])
],
rtrace_list=[
self.sig_eps_m,
self.sig_eps_f,
self.eps_m_field,
self.eps_f_field,
self.sig_m_field,
self.sig_f_field,
self.omega_m_field,
self.shear_flow_field,
self.slip_field,
])
# Add the time-loop control
tloop = TLoop(tstepper=ts,
KMAX=300,
tolerance=1e-5,
debug=False,
verbose_iteration=True,
verbose_time=False,
tline=TLine(min=0.0, step=self.step_size, max=1.0))
tloop.on_accept_time_step = self.plot
U = tloop.eval()
self.sig_eps_f.refresh()
max_sig_m = max(self.sig_eps_m.trace.ydata)
return array([U[right_dof_m], max_sig_m], dtype='float_')
shape=(3, 3, 3),
fets_eval=fets_eval)
# Put the tseval (time-stepper) into the spatial context of the
# discretization and specify the response tracers to evaluate there.
#
right_dof = 2
ts = TS(
sdomain=domain,
# conversion to list (square brackets) is only necessary for slicing of
# single dofs, e.g "get_left_dofs()[0,1]" which elsewise retuns an
# integer only
bcond_list=[
BCDofGroup(var='u',
value=0.,
dims=[0],
get_dof_method=domain.get_left_dofs),
BCDofGroup(var='u',
value=0.,
dims=[1, 2],
get_dof_method=domain.get_bottom_left_dofs),
BCDofGroup(var='u',
value=0.002,
dims=[1],
get_dof_method=domain.get_right_dofs)
],
rtrace_list=[
# RTraceGraph(name = 'Fi,right over u_right (iteration)' ,
# var_y = 'F_int', idx_y = right_dof,
# var_x = 'U_k', idx_x = right_dof,
# record_on = 'update'),
def example_with_new_domain():
from ibvpy.api import \
TStepper as TS, RTDofGraph, RTraceDomainListField, \
RTraceDomainListInteg, TLoop, \
TLine, BCDof, DOTSEval
from ibvpy.mats.mats2D.mats2D_elastic.mats2D_elastic import MATS2DElastic
from ibvpy.mats.mats2D.mats2D_sdamage.mats2D_sdamage import MATS2DScalarDamage
from ibvpy.api import BCDofGroup
mats_eval = MATS2DElastic()
fets_eval = FETS2D4Q(mats_eval=mats_eval)
#fets_eval = FETS2D4Q(mats_eval = MATS2DScalarDamage())
print(fets_eval.vtk_node_cell_data)
from ibvpy.mesh.fe_grid import FEGrid
from ibvpy.mesh.fe_refinement_grid import FERefinementGrid
from ibvpy.mesh.fe_domain import FEDomain
from mathkit.mfn import MFnLineArray
# Discretization
fe_grid = FEGrid(coord_max=(10., 4., 0.),
shape=(10, 3),
fets_eval=fets_eval)
bcg = BCDofGroup(var='u',
value=0.,
dims=[0],
get_dof_method=fe_grid.get_left_dofs)
bcg.setup(None)
print('labels', bcg._get_labels())
print('points', bcg._get_mvpoints())
mf = MFnLineArray( # xdata = arange(10),
ydata=np.array([0, 1, 2, 3]))
right_dof = 2
tstepper = TS(
sdomain=fe_grid,
bcond_list=[
BCDofGroup(var='u',
value=0.,
dims=[0, 1],
get_dof_method=fe_grid.get_left_dofs),
# BCDofGroup( var='u', value = 0., dims = [1],
# get_dof_method = fe_grid.get_bottom_dofs ),
BCDofGroup(var='u',
value=.005,
dims=[1],
time_function=mf.get_value,
get_dof_method=fe_grid.get_right_dofs)
],
rtrace_list=[
RTDofGraph(name='Fi,right over u_right (iteration)',
var_y='F_int',
idx_y=right_dof,
var_x='U_k',
idx_x=right_dof,
record_on='update'),
RTraceDomainListField(name='Stress',
var='sig_app',
idx=0,
position='int_pnts',
record_on='update'),
# RTraceDomainListField(name = 'Damage' ,
# var = 'omega', idx = 0,
#
# record_on = 'update',
# warp = True),
RTraceDomainListField(name='Displacement',
var='u',
idx=0,
record_on='update',
warp=True),
RTraceDomainListField(name='Strain energy',
var='strain_energy',
idx=0,
record_on='update',
warp=False),
RTraceDomainListInteg(name='Integ strain energy',
var='strain_energy',
idx=0,
record_on='update',
warp=False),
# RTraceDomainListField(name = 'N0' ,
# var = 'N_mtx', idx = 0,
# record_on = 'update')
])
# Add the time-loop control
#global tloop
tloop = TLoop(tstepper=tstepper,
KMAX=300,
tolerance=1e-4,
tline=TLine(min=0.0, step=1.0, max=1.0))
#import cProfile
#cProfile.run('tloop.eval()', 'tloop_prof' )
# print tloop.eval()
#import pstats
#p = pstats.Stats('tloop_prof')
# p.strip_dirs()
# print 'cumulative'
# p.sort_stats('cumulative').print_stats(20)
# print 'time'
# p.sort_stats('time').print_stats(20)
tloop.eval()
# Put the whole thing into the simulation-framework to map the
# individual pieces of definition into the user interface.
#
from ibvpy.plugins.ibvpy_app import IBVPyApp
app = IBVPyApp(ibv_resource=tloop)
app.main()
def example_2d():
from ibvpy.mats.mats2D.mats2D_elastic.mats2D_elastic import MATS2DElastic
from ibvpy.fets.fets2D.fets2D4q import FETS2D4Q
from ibvpy.fets.fets2D.fets2D4q8u import FETS2D4Q8U
from ibvpy.fets.fets2D.fets2D4q9u import FETS2D4Q9U
from ibvpy.fets.fets2D.fets2D9q import FETS2D9Q
fets_eval = FETS2D4Q(mats_eval=MATS2DElastic(E=1., nu=0.))
xfets_eval = FETSBimaterial(parent_fets=fets_eval, int_order=3 ,
mats_eval=MATS2DElastic(E=1., nu=0.),
mats_eval2=MATS2DElastic(E=5., nu=0.))
# Discretization
fe_domain = FEDomain()
fe_level1 = FERefinementGrid(domain=fe_domain, fets_eval=fets_eval)
fe_grid1 = FEGrid(coord_max=(3., 1., 0.),
shape=(3, 1),
fets_eval=fets_eval,
level=fe_level1)
fe_xdomain = XFESubDomain(domain=fe_domain,
fets_eval=xfets_eval,
# fe_grid_idx_slice = fe_grid1[1,0],
fe_grid_slice=fe_grid1['X - 1.5'])
ts = TS(dof_resultants=True,
sdomain=fe_domain,
bcond_list=[BCDofGroup(var='u', value=1., dims=[0],
get_dof_method=fe_grid1.get_right_dofs),
BCDofGroup(var='u', value=0., dims=[1],
get_dof_method=fe_grid1.get_right_dofs),
BCDofGroup(var='u', value=0., dims=[0, 1],
get_dof_method=fe_grid1.get_left_dofs),
],
rtrace_list=[
# RTDofGraph(name = 'Fi,right over u_right (iteration)' ,
# var_y = 'F_int', idx_y = 0,
# var_x = 'U_k', idx_x = 1),
# RTraceDomainListField(name = 'Stress' ,
# var = 'sig_app', idx = 0, warp = True ),
RTraceDomainListField(name='Displacement' ,
var='u', idx=0,
warp=True),
RTraceDomainListField(name='Strain' ,
var='eps', idx=0,
warp=True),
# RTraceDomainField(name = 'N0' ,
# var = 'N_mtx', idx = 0,
# record_on = 'update')
]
)
#
# # Add the time-loop control
tloop = TLoop(tstepper=ts,
# tolerance = 1e-4, KMAX = 4,
# debug = True, RESETMAX = 2,
tline=TLine(min=0.0, step=1., max=1.0))
# print "elements ",fe_xdomain.elements[0]
fe_xdomain.deactivate_sliced_elems()
print('parent elems ', fe_xdomain.fe_grid_slice.elems)
print('parent dofs ', fe_xdomain.fe_grid_slice.dofs)
print("dofmap ", fe_xdomain.elem_dof_map)
print("ls_values ", fe_xdomain.dots.dof_node_ls_values)
print('intersection points ', fe_xdomain.fe_grid_slice.r_i)
print("triangles ", fe_xdomain.dots.rt_triangles)
print("vtk points ", fe_xdomain.dots.vtk_X)
print("vtk data ", fe_xdomain.dots.get_vtk_cell_data('blabla', 0, 0))
print('ip_triangles', fe_xdomain.dots.int_division)
print('ip_coords', fe_xdomain.dots.ip_coords)
print('ip_weigths', fe_xdomain.dots.ip_weights)
print('ip_offset', fe_xdomain.dots.ip_offset)
print('ip_X_coords', fe_xdomain.dots.ip_X)
print('ip_ls', fe_xdomain.dots.ip_ls_values)
print('vtk_ls', fe_xdomain.dots.vtk_ls_values)
print('J_det ', fe_xdomain.dots.J_det_grid)
print(tloop.eval())
# #ts.setup()
from ibvpy.plugins.ibvpy_app import IBVPyApp
ibvpy_app = IBVPyApp(ibv_resource=ts)
ibvpy_app.main()
fe_grid5 = FEGrid( name = 'fe_grid5', coord_min = (0, 0, 2.),
coord_max = (2., 6.,2.),
shape = (1,3),
fets_eval = fets_eval_4u,
level = fe_rgrid3 )
fe_grid6 = FEGrid( name = 'fe_grid6', coord_min = (2., 6, 2.),
coord_max = (10, 15, 2.),
shape = (1,3),
fets_eval = fets_eval_4u,
level = fe_rgrid3 )
ts = TS( dof_resultants = True,
sdomain = fe_domain,
bcond_list = [BCDofGroup(var='f', value = 1., dims = [0],
get_dof_method = fe_grid1.get_top_dofs ),
BCDofGroup(var='u', value = 0., dims = [0,1],
get_dof_method = fe_grid1.get_bottom_dofs ),
],
rtrace_list = [ RTDofGraph(name = 'Fi,right over u_right (iteration)' ,
var_y = 'F_int', idx_y = 0,
var_x = 'U_k', idx_x = 1),
RTraceDomainListField(name = 'Stress',
var = 'sig_app', idx = 0, warp = False ),
# RTraceDomainField(name = 'Displacement' ,
# var = 'u', idx = 0),
# RTraceDomainField(name = 'N0' ,
# var = 'N_mtx', idx = 0,
# record_on = 'update')
]
)
def _get_bc_list(self):
specmn = self.specmn_fe_grid
mid_specmn = self.mid_specmn_fe_grid
if self.elstmr_flag:
elstmr = self.elstmr_fe_grid
#--------------------------------------------------------------
# boundary conditions for the symmetry
#--------------------------------------------------------------
# the x-axis corresponds to the axis of symmetry along the longitudinal axis of the beam:
bc_symplane_xz = BCSlice(var='u',
value=0.,
dims=[1],
slice=specmn[:, 0, :, :, 0, :])
bc_mid_symplane_xz = BCSlice(var='u',
value=0.,
dims=[1],
slice=mid_specmn[:, 0, :, :, 0, :])
bc_mid_symplane_yz = BCSlice(var='u',
value=0.,
dims=[0],
slice=mid_specmn[0, :, :, 0, :, :])
if self.elstmr_flag:
bc_el_symplane_xz = BCSlice(var='u',
value=0.,
dims=[1],
slice=elstmr[:, 0, :, :, 0, :])
bc_el_symplane_yz = BCSlice(var='u',
value=0.,
dims=[0],
slice=elstmr[0, :, :, 0, :, :])
#--------------------------------------------------------------
# boundary conditions for the support
#--------------------------------------------------------------
bc_support_0y0 = BCSlice(var='u',
value=0.,
dims=[2],
slice=specmn[-1, :, 0, -1, :, 0])
#--------------------------------------------------------------
# link domains
#--------------------------------------------------------------
link_msp_sp = BCDofGroup(var='u',
value=0.,
dims=[0, 1, 2],
get_dof_method=mid_specmn.get_right_dofs,
get_link_dof_method=specmn.get_left_dofs,
link_coeffs=[1.])
# link_msp_sp_xyz = BCSlice(var = 'u', value = 0., dims = [0, 1, 2],
# slice = specmn[0, :, :, 0, :, :],
# link_slice = mid_specmn[-1 :, :, -1, :, :],
# link_dims = [0, 1, 2],
# link_coeffs = [1.])
# link_msp_sp_y = BCSlice(var = 'u', value = 0., dims = [1],
# slice = specmn[0, :, :, 0, :, :],
# link_slice = mid_specmn[-1 :, :, -1, :, :],
# link_dims = [1],
# link_coeffs = [1.])
#
# link_msp_sp_z = BCSlice(var = 'u', value = 0., dims = [2],
# slice = specmn[0, :, :, 0, :, :],
# link_slice = mid_specmn[-1 :, :, -1, :, :],
# link_dims = [2],
# link_coeffs = [1.])
# link_msp_sp = [ link_msp_sp_xyz ]
if self.elstmr_flag:
link_el_sp = BCDofGroup(
var='u',
value=0.,
dims=[2],
get_dof_method=elstmr.get_back_dofs,
get_link_dof_method=mid_specmn.get_front_dofs,
link_coeffs=[1.])
#--------------------------------------------------------------
# loading
#--------------------------------------------------------------
w_max = self.w_max
# f_max = -0.010 / 0.10 # [MN/m]
if self.elstmr_flag:
# apply displacement at all top node (surface load)
#
bc_w = BCSlice(var='u',
value=w_max,
dims=[2],
slice=elstmr[:, :, -1, :, :, -1])
# apply a single force at the center of the beam (system origin at top of the elastomer
# and us elastomer-domain as load distribution plate with a high stiffness (e.g. steel)
# F_max = -0.010 #[MN]
# bc_F = BCSlice(var = 'f', value = F_max, dims = [2],
# slice = elstmr[0, 0, -1, 0, 0, -1])
else:
# center top nodes (line load)
#
bc_w = BCSlice(var='u',
value=w_max,
dims=[2],
slice=mid_specmn[0, :, -1, 0, :, -1])
# NOTE: the entire symmetry axis (yz)-plane is moved downwards
# in order to avoid large indentations at the top nodes
#
# bc_center_w = BCSlice( var = 'w', value = w_max, dims = [2], slice = mid_specmn[0, :, :, 0, :, :] )
bc_list = [
bc_symplane_xz, bc_mid_symplane_xz, bc_mid_symplane_yz,
bc_support_0y0, link_msp_sp, bc_w
]
if self.elstmr_flag:
bc_list_elstmr = [link_el_sp, bc_el_symplane_xz, bc_el_symplane_yz]
bc_list += bc_list_elstmr
return bc_list
fe_grid1 = FEGrid( coord_max = ( 1., 1., 0. ),
shape = ( 1, 1 ),
rt_tol = 0.1,
fets_eval = fets_eval,
level = fe_level1 )
# fe_grid1.deactivate( (1,0) )
# fe_grid1.deactivate( (1,1) )
fe_xdomain = XFESubDomain( domain = fe_domain,
fets_eval = xfets_eval,
#fe_grid_idx_slice = fe_grid1[1,0],
fe_grid_slice = fe_grid1['X - 0.5 -0.1*Y'] )
ts = TS( dof_resultants = True,
sdomain = fe_domain,
bcond_list = [BCDofGroup( var = 'u', value = 0., dims = [0, 1],
get_dof_method = fe_grid1.get_right_dofs ),
BCDofGroup( var = 'u', value = 0., dims = [1],
get_dof_method = fe_grid1.get_left_dofs ),
BCDofGroup( var = 'u', value = -1., dims = [0],
get_dof_method = fe_grid1.get_left_dofs ),
],
rtrace_list = [
# RTraceGraph(name = 'Fi,right over u_right (iteration)' ,
# var_y = 'F_int', idx_y = 0,
# var_x = 'U_k', idx_x = 1),
# RTraceDomainListField(name = 'Stress' ,
# var = 'sig_app', idx = 0, warp = True ),
RTraceDomainListField( name = 'Displacement' ,
var = 'u', idx = 0,
warp = True ),
# RTraceDomainField(name = 'N0' ,
