def test_pcomp_02(self):
"""
symmetrical, nsm=0.0 and nsm=1.0
"""
model = BDF()
pid = 1
z0 = 0.
nsm = 0.
sb = 0.
ft = 'HOFF'
TRef = 0.
ge = 0.
lam = 'SYM' # isSymmetrical SYM
Mid = [1,2,3]
Theta = [0.,10.,20.]
T = [.1,.2,.3]
Sout = ['YES', 'YES', 'NO'] # 0-NO, 1-YES
card = ['PCOMP', pid, z0, nsm, sb, ft, TRef, ge, lam,
Mid[0], T[0], Theta[0], Sout[0],
Mid[1], T[1], Theta[1], Sout[1],
Mid[2], T[2], Theta[2], Sout[2]]
card = BDFCard(card)
p = PCOMP(model)
p.add(card)
p.build()
self.assertTrue(p.is_symmetrical_by_property_id())
self.assertTrue(p.is_symmetrical_by_property_index())
self.assertEqual(p.get_nplies_by_property_id(), 6)
self.assertAlmostEqual(p.get_thickness_by_property_id(), 1.2)
self.assertAlmostEqual(p.get_thickness_by_property_id_ply(pid, 0), 0.1)
self.assertAlmostEqual(p.get_thickness_by_property_id_ply(pid, 1), 0.2)
self.assertAlmostEqual(p.get_thickness_by_property_id_ply(pid, 2), 0.3)
self.assertAlmostEqual(p.get_thickness_by_property_id_ply(pid, 3), 0.1)
self.assertAlmostEqual(p.get_thickness_by_property_id_ply(pid, 4), 0.2)
self.assertAlmostEqual(p.get_thickness_by_property_id_ply(pid, 5), 0.3)
with self.assertRaises(IndexError):
p.Thickness(6)
self.assertAlmostEqual(p.get_theta_by_property_id_ply(pid, 0), 0.)
self.assertAlmostEqual(p.get_theta_by_property_id_ply(pid, 1), 10.)
self.assertAlmostEqual(p.get_theta_by_property_id_ply(pid, 2), 20.)
self.assertAlmostEqual(p.get_theta_by_property_id_ply(pid, 3), 0.)
self.assertAlmostEqual(p.get_theta_by_property_id_ply(pid, 4), 10.)
self.assertAlmostEqual(p.get_theta_by_property_id_ply(pid, 5), 20.)
with self.assertRaises(IndexError):
p.get_theta_by_property_id_ply(pid, 6)
self.assertEqual(p.get_material_id_by_property_id_ply(pid, 0), 1)
self.assertEqual(p.get_material_id_by_property_id_ply(pid, 1), 2)
self.assertEqual(p.get_material_id_by_property_id_ply(pid, 2), 3)
self.assertEqual(p.get_material_id_by_property_id_ply(pid, 3), 1)
self.assertEqual(p.get_material_id_by_property_id_ply(pid, 4), 2)
self.assertEqual(p.get_material_id_by_property_id_ply(pid, 5), 3)
with self.assertRaises(IndexError):
p.get_material_id_by_property_id_ply(pid, 6)
self.assertEqual(p.get_material_ids_by_property_id(), [1,2,3,1,2,3])
self.assertEqual(p.get_sout_by_property_id_ply(pid, 0), 'YES')
self.assertEqual(p.get_sout_by_property_id_ply(pid, 1), 'YES')
self.assertEqual(p.get_sout_by_property_id_ply(pid, 2), 'NO')
self.assertEqual(p.get_sout_by_property_id_ply(pid, 3), 'YES')
self.assertEqual(p.get_sout_by_property_id_ply(pid, 4), 'YES')
self.assertEqual(p.get_sout_by_property_id_ply(pid, 5), 'NO')
with self.assertRaises(IndexError):
p.get_sout_by_property_id_ply(pid, 6)
mid = 1
E = None
G = None
nu = None
rho = 1.0
a = None
St = None
Sc = None
Ss = None
Mcsid = None
mat1 = [mid,E,G,nu,rho,a,TRef, ge, St, Sc, Ss, Mcsid]
m = MAT1(data=mat1)
for iply in range(len(p.plies)):
mid = p.plies[iply][0]
p.plies[iply][0] = m # MAT1
#Rho
self.assertAlmostEqual(p.Rho(0), 1.0)
self.assertAlmostEqual(p.Rho(1), 1.0)
self.assertAlmostEqual(p.Rho(2), 1.0)
self.assertAlmostEqual(p.Rho(3), 1.0)
self.assertAlmostEqual(p.Rho(4), 1.0)
self.assertAlmostEqual(p.Rho(5), 1.0)
with self.assertRaises(IndexError):
p.Rho(6)
# MassPerArea
self.assertAlmostEqual(p.MassPerArea(), 1.2)
self.assertAlmostEqual(p.MassPerArea(0), 0.1)
self.assertAlmostEqual(p.MassPerArea(1), 0.2)
self.assertAlmostEqual(p.MassPerArea(2), 0.3)
self.assertAlmostEqual(p.MassPerArea(3), 0.1)
self.assertAlmostEqual(p.MassPerArea(4), 0.2)
self.assertAlmostEqual(p.MassPerArea(5), 0.3)
with self.assertRaises(IndexError):
p.MassPerArea(6)
self.assertEqual(p.Nsm(), 0.0)
#----------------------
# change the nsm to 1.0
p.nsm = 1.0
self.assertEqual(p.Nsm(), 1.0)
# MassPerArea
self.assertAlmostEqual(p.MassPerArea(), 2.2)
self.assertAlmostEqual(p.MassPerArea(0, method='nplies'), 0.1+1/6.)
self.assertAlmostEqual(p.MassPerArea(1, method='nplies'), 0.2+1/6.)
self.assertAlmostEqual(p.MassPerArea(2, method='nplies'), 0.3+1/6.)
self.assertAlmostEqual(p.MassPerArea(3, method='nplies'), 0.1+1/6.)
self.assertAlmostEqual(p.MassPerArea(4, method='nplies'), 0.2+1/6.)
self.assertAlmostEqual(p.MassPerArea(5, method='nplies'), 0.3+1/6.)
with self.assertRaises(IndexError):
p.MassPerArea(6)
def test_pcomp_02(self):
"""
symmetrical, nsm=0.0 and nsm=1.0
"""
model = BDF()
pid = 1
z0 = 0.
nsm = 0.
sb = 0.
ft = 'HOFF'
TRef = 0.
ge = 0.
lam = 'SYM' # isSymmetrical SYM
Mid = [1, 2, 3]
Theta = [0., 10., 20.]
T = [.1, .2, .3]
Sout = ['YES', 'YES', 'NO'] # 0-NO, 1-YES
card = [
'PCOMP', pid, z0, nsm, sb, ft, TRef, ge, lam, Mid[0], T[0],
Theta[0], Sout[0], Mid[1], T[1], Theta[1], Sout[1], Mid[2], T[2],
Theta[2], Sout[2]
]
card = BDFCard(card)
p = PCOMP(model)
p.add(card)
p.build()
self.assertTrue(p.is_symmetrical_by_property_id())
self.assertTrue(p.is_symmetrical_by_property_index())
self.assertEqual(p.get_nplies_by_property_id(), 6)
self.assertAlmostEqual(p.get_thickness_by_property_id(), 1.2)
self.assertAlmostEqual(p.get_thickness_by_property_id_ply(pid, 0), 0.1)
self.assertAlmostEqual(p.get_thickness_by_property_id_ply(pid, 1), 0.2)
self.assertAlmostEqual(p.get_thickness_by_property_id_ply(pid, 2), 0.3)
self.assertAlmostEqual(p.get_thickness_by_property_id_ply(pid, 3), 0.1)
self.assertAlmostEqual(p.get_thickness_by_property_id_ply(pid, 4), 0.2)
self.assertAlmostEqual(p.get_thickness_by_property_id_ply(pid, 5), 0.3)
with self.assertRaises(IndexError):
p.Thickness(6)
self.assertAlmostEqual(p.get_theta_by_property_id_ply(pid, 0), 0.)
self.assertAlmostEqual(p.get_theta_by_property_id_ply(pid, 1), 10.)
self.assertAlmostEqual(p.get_theta_by_property_id_ply(pid, 2), 20.)
self.assertAlmostEqual(p.get_theta_by_property_id_ply(pid, 3), 0.)
self.assertAlmostEqual(p.get_theta_by_property_id_ply(pid, 4), 10.)
self.assertAlmostEqual(p.get_theta_by_property_id_ply(pid, 5), 20.)
with self.assertRaises(IndexError):
p.get_theta_by_property_id_ply(pid, 6)
self.assertEqual(p.get_material_id_by_property_id_ply(pid, 0), 1)
self.assertEqual(p.get_material_id_by_property_id_ply(pid, 1), 2)
self.assertEqual(p.get_material_id_by_property_id_ply(pid, 2), 3)
self.assertEqual(p.get_material_id_by_property_id_ply(pid, 3), 1)
self.assertEqual(p.get_material_id_by_property_id_ply(pid, 4), 2)
self.assertEqual(p.get_material_id_by_property_id_ply(pid, 5), 3)
with self.assertRaises(IndexError):
p.get_material_id_by_property_id_ply(pid, 6)
self.assertEqual(p.get_material_ids_by_property_id(),
[1, 2, 3, 1, 2, 3])
self.assertEqual(p.get_sout_by_property_id_ply(pid, 0), 'YES')
self.assertEqual(p.get_sout_by_property_id_ply(pid, 1), 'YES')
self.assertEqual(p.get_sout_by_property_id_ply(pid, 2), 'NO')
self.assertEqual(p.get_sout_by_property_id_ply(pid, 3), 'YES')
self.assertEqual(p.get_sout_by_property_id_ply(pid, 4), 'YES')
self.assertEqual(p.get_sout_by_property_id_ply(pid, 5), 'NO')
with self.assertRaises(IndexError):
p.get_sout_by_property_id_ply(pid, 6)
mid = 1
E = None
G = None
nu = None
rho = 1.0
a = None
St = None
Sc = None
Ss = None
Mcsid = None
mat1 = [mid, E, G, nu, rho, a, TRef, ge, St, Sc, Ss, Mcsid]
m = MAT1(data=mat1)
for iply in range(len(p.plies)):
mid = p.plies[iply][0]
p.plies[iply][0] = m # MAT1
#Rho
self.assertAlmostEqual(p.Rho(0), 1.0)
self.assertAlmostEqual(p.Rho(1), 1.0)
self.assertAlmostEqual(p.Rho(2), 1.0)
self.assertAlmostEqual(p.Rho(3), 1.0)
self.assertAlmostEqual(p.Rho(4), 1.0)
self.assertAlmostEqual(p.Rho(5), 1.0)
with self.assertRaises(IndexError):
p.Rho(6)
# MassPerArea
self.assertAlmostEqual(p.MassPerArea(), 1.2)
self.assertAlmostEqual(p.MassPerArea(0), 0.1)
self.assertAlmostEqual(p.MassPerArea(1), 0.2)
self.assertAlmostEqual(p.MassPerArea(2), 0.3)
self.assertAlmostEqual(p.MassPerArea(3), 0.1)
self.assertAlmostEqual(p.MassPerArea(4), 0.2)
self.assertAlmostEqual(p.MassPerArea(5), 0.3)
with self.assertRaises(IndexError):
p.MassPerArea(6)
self.assertEqual(p.Nsm(), 0.0)
#----------------------
# change the nsm to 1.0
p.nsm = 1.0
self.assertEqual(p.Nsm(), 1.0)
# MassPerArea
self.assertAlmostEqual(p.MassPerArea(), 2.2)
self.assertAlmostEqual(p.MassPerArea(0, method='nplies'), 0.1 + 1 / 6.)
self.assertAlmostEqual(p.MassPerArea(1, method='nplies'), 0.2 + 1 / 6.)
self.assertAlmostEqual(p.MassPerArea(2, method='nplies'), 0.3 + 1 / 6.)
self.assertAlmostEqual(p.MassPerArea(3, method='nplies'), 0.1 + 1 / 6.)
self.assertAlmostEqual(p.MassPerArea(4, method='nplies'), 0.2 + 1 / 6.)
self.assertAlmostEqual(p.MassPerArea(5, method='nplies'), 0.3 + 1 / 6.)
with self.assertRaises(IndexError):
p.MassPerArea(6)
def test_pcomp_01(self):
"""
asymmetrical, nsm=0.0 and nsm=1.0
"""
#self.pid = data[0]
#self.z0 = data[1]
#self.nsm = data[2]
#self.sb = data[3]
#self.ft = data[4]
#self.TRef = data[5]
#self.ge = data[6]
#self.lam = data[7]
#Mid = data[8]
#T = data[9]
#Theta = data[10]
#Sout = data[11]
pid = 1
z0 = 0.
nsm = 0.
sb = 0.
ft = 'HILL'
TRef = 0.
ge = 0.
#lam = 'NO' # isSymmetrical YES/NO
lam = 'BEND' # isSymmetrical YES/NO
Mid = [1,2,3]
Theta = [0.,10.,20.]
T = [.1,.2,.3]
Sout = ['YES', 'YES', 'NO'] # 0-NO, 1-YES
data = ['PCOMP', pid, z0, nsm, sb, ft, TRef, ge, lam,
Mid[0], T[0], Theta[0], Sout[0],
Mid[1], T[1], Theta[1], Sout[1],
Mid[2], T[2], Theta[2], Sout[2],]
model = BDF()
card = BDFCard(data)
p = PCOMP(model)
#p = model.properties.pcomp
p.add(card)
p.build()
#self.assertFalse(p.is_symmetrical())
self.assertEqual(p.get_nplies_by_property_id(), 3)
self.assertAlmostEqual(p.get_thickness_by_property_id(pid), 0.6)
self.assertAlmostEqual(p.get_thickness_by_property_id_ply(pid, 0), 0.1)
self.assertAlmostEqual(p.get_thickness_by_property_id_ply(pid, 1), 0.2)
self.assertAlmostEqual(p.get_thickness_by_property_id_ply(pid, 2), 0.3)
with self.assertRaises(IndexError):
p.get_thickness_by_property_id_ply(pid, 3)
self.assertAlmostEqual(p.get_theta_by_property_id_ply(pid, 0), 0.)
self.assertAlmostEqual(p.get_theta_by_property_id_ply(pid, 1), 10.)
self.assertAlmostEqual(p.get_theta_by_property_id_ply(pid, 2), 20.)
with self.assertRaises(IndexError):
p.get_theta_by_property_id_ply(pid, 3)
self.assertEqual(p.get_material_id_by_property_id_ply(pid, 0), 1)
self.assertEqual(p.get_material_id_by_property_id_ply(pid, 1), 2)
self.assertEqual(p.get_material_id_by_property_id_ply(pid, 2), 3)
with self.assertRaises(IndexError):
p.get_material_id_by_property_id_ply(pid, 3)
print('get_material_ids_by_property_id = ', p.get_material_ids_by_property_id(pid))
self.assertEqual(p.get_material_ids_by_property_id(pid)[0][0], 1)
self.assertEqual(p.get_material_ids_by_property_id(pid)[0][0], 1)
self.assertEqual(p.get_material_ids_by_property_id(pid)[0][1], 2)
self.assertEqual(p.get_material_ids_by_property_id(pid)[0][2], 3)
self.assertEqual(p.get_sout_by_property_id_ply(pid, 0), 'YES')
self.assertEqual(p.get_sout_by_property_id_ply(pid, 1), 'YES')
self.assertEqual(p.get_sout_by_property_id_ply(pid, 2), 'NO')
with self.assertRaises(IndexError):
p.get_sout_by_property_id_ply(pid, 3)
# material...
mid = 1
E = 1e7
G = None
nu = None
rho = 1.0
a = None
St = None
Sc = None
Ss = None
Mcsid = None
mat1 = ['MAT1', mid, E, G, nu, rho, a, TRef, ge, St, Sc, Ss, Mcsid]
card = BDFCard(mat1)
m = MAT1(model)
m.allocate(1)
m.add(card)
m.build()
#for iply in range(len(p.plies)):
#mid = p.plies[iply][0]
#p.plies[iply][0] = m # MAT1
##p.mids = [m, m, m]
#Rho
self.assertAlmostEqual(p.get_density_by_property_id_ply(pid, 0), 1.0)
self.assertAlmostEqual(p.get_density_by_property_id_ply(pid, 1), 1.0)
self.assertAlmostEqual(p.get_density_by_property_id_ply(pid, 2), 1.0)
with self.assertRaises(IndexError):
p.get_density_by_property_id_ply(pid, 3)
# MassPerArea
self.assertAlmostEqual(p.get_mass_per_area_by_property_id(), 0.6)
self.assertAlmostEqual(p.get_mass_per_area_by_property_id_iply(pid, 0), 0.1)
self.assertAlmostEqual(p.get_mass_per_area_by_property_id_iply(pid, 1), 0.2)
self.assertAlmostEqual(p.get_mass_per_area_by_property_id_iply(pid, 2), 0.3)
with self.assertRaises(IndexError):
p.MassPerArea(3)
#----------------------
# change the nsm to 1.0
p.nsm = 1.0
self.assertEqual(p.Nsm(), 1.0)
# MassPerArea
self.assertAlmostEqual(p.MassPerArea(), 1.6)
self.assertAlmostEqual(p.MassPerArea(0, method='nplies'), 0.1+1/3.)
self.assertAlmostEqual(p.MassPerArea(1, method='nplies'), 0.2+1/3.)
self.assertAlmostEqual(p.MassPerArea(2, method='nplies'), 0.3+1/3.)
self.assertAlmostEqual(p.MassPerArea(0, method='rho*t'), 0.1+1/6.)
self.assertAlmostEqual(p.MassPerArea(1, method='rho*t'), 0.2+2/6.)
self.assertAlmostEqual(p.MassPerArea(2, method='rho*t'), 0.3+3/6.)
self.assertAlmostEqual(p.MassPerArea(0, method='t'), 0.1+1/6.)
self.assertAlmostEqual(p.MassPerArea(1, method='t'), 0.2+2/6.)
self.assertAlmostEqual(p.MassPerArea(2, method='t'), 0.3+3/6.)
with self.assertRaises(IndexError):
p.MassPerArea(3, method='nplies')
z = p.get_z_locations()
z_expected = array([0., T[0], T[0]+T[1], T[0]+T[1]+T[2]])
for za, ze in zip(z, z_expected):
self.assertAlmostEqual(za, ze)
#z0 =
p.z0 = 1.0
z_expected = 1.0 + z_expected
z = p.get_z_locations()
for za, ze in zip(z, z_expected):
self.assertAlmostEqual(za, ze)
def test_pcomp_01(self):
"""
asymmetrical, nsm=0.0 and nsm=1.0
"""
#self.pid = data[0]
#self.z0 = data[1]
#self.nsm = data[2]
#self.sb = data[3]
#self.ft = data[4]
#self.TRef = data[5]
#self.ge = data[6]
#self.lam = data[7]
#Mid = data[8]
#T = data[9]
#Theta = data[10]
#Sout = data[11]
pid = 1
z0 = 0.
nsm = 0.
sb = 0.
ft = 'HILL'
TRef = 0.
ge = 0.
#lam = 'NO' # isSymmetrical YES/NO
lam = 'BEND' # isSymmetrical YES/NO
Mid = [1, 2, 3]
Theta = [0., 10., 20.]
T = [.1, .2, .3]
Sout = ['YES', 'YES', 'NO'] # 0-NO, 1-YES
data = [
'PCOMP',
pid,
z0,
nsm,
sb,
ft,
TRef,
ge,
lam,
Mid[0],
T[0],
Theta[0],
Sout[0],
Mid[1],
T[1],
Theta[1],
Sout[1],
Mid[2],
T[2],
Theta[2],
Sout[2],
]
model = BDF()
card = BDFCard(data)
p = PCOMP(model)
#p = model.properties.pcomp
p.add(card)
p.build()
#self.assertFalse(p.is_symmetrical())
self.assertEqual(p.get_nplies_by_property_id(), 3)
self.assertAlmostEqual(p.get_thickness_by_property_id(pid), 0.6)
self.assertAlmostEqual(p.get_thickness_by_property_id_ply(pid, 0), 0.1)
self.assertAlmostEqual(p.get_thickness_by_property_id_ply(pid, 1), 0.2)
self.assertAlmostEqual(p.get_thickness_by_property_id_ply(pid, 2), 0.3)
with self.assertRaises(IndexError):
p.get_thickness_by_property_id_ply(pid, 3)
self.assertAlmostEqual(p.get_theta_by_property_id_ply(pid, 0), 0.)
self.assertAlmostEqual(p.get_theta_by_property_id_ply(pid, 1), 10.)
self.assertAlmostEqual(p.get_theta_by_property_id_ply(pid, 2), 20.)
with self.assertRaises(IndexError):
p.get_theta_by_property_id_ply(pid, 3)
self.assertEqual(p.get_material_id_by_property_id_ply(pid, 0), 1)
self.assertEqual(p.get_material_id_by_property_id_ply(pid, 1), 2)
self.assertEqual(p.get_material_id_by_property_id_ply(pid, 2), 3)
with self.assertRaises(IndexError):
p.get_material_id_by_property_id_ply(pid, 3)
print('get_material_ids_by_property_id = ',
p.get_material_ids_by_property_id(pid))
self.assertEqual(p.get_material_ids_by_property_id(pid)[0][0], 1)
self.assertEqual(p.get_material_ids_by_property_id(pid)[0][0], 1)
self.assertEqual(p.get_material_ids_by_property_id(pid)[0][1], 2)
self.assertEqual(p.get_material_ids_by_property_id(pid)[0][2], 3)
self.assertEqual(p.get_sout_by_property_id_ply(pid, 0), 'YES')
self.assertEqual(p.get_sout_by_property_id_ply(pid, 1), 'YES')
self.assertEqual(p.get_sout_by_property_id_ply(pid, 2), 'NO')
with self.assertRaises(IndexError):
p.get_sout_by_property_id_ply(pid, 3)
# material...
mid = 1
E = 1e7
G = None
nu = None
rho = 1.0
a = None
St = None
Sc = None
Ss = None
Mcsid = None
mat1 = ['MAT1', mid, E, G, nu, rho, a, TRef, ge, St, Sc, Ss, Mcsid]
card = BDFCard(mat1)
m = MAT1(model)
m.allocate(1)
m.add(card)
m.build()
#for iply in range(len(p.plies)):
#mid = p.plies[iply][0]
#p.plies[iply][0] = m # MAT1
##p.mids = [m, m, m]
#Rho
self.assertAlmostEqual(p.get_density_by_property_id_ply(pid, 0), 1.0)
self.assertAlmostEqual(p.get_density_by_property_id_ply(pid, 1), 1.0)
self.assertAlmostEqual(p.get_density_by_property_id_ply(pid, 2), 1.0)
with self.assertRaises(IndexError):
p.get_density_by_property_id_ply(pid, 3)
# MassPerArea
self.assertAlmostEqual(p.get_mass_per_area_by_property_id(), 0.6)
self.assertAlmostEqual(p.get_mass_per_area_by_property_id_iply(pid, 0),
0.1)
self.assertAlmostEqual(p.get_mass_per_area_by_property_id_iply(pid, 1),
0.2)
self.assertAlmostEqual(p.get_mass_per_area_by_property_id_iply(pid, 2),
0.3)
with self.assertRaises(IndexError):
p.MassPerArea(3)
#----------------------
# change the nsm to 1.0
p.nsm = 1.0
self.assertEqual(p.Nsm(), 1.0)
# MassPerArea
self.assertAlmostEqual(p.MassPerArea(), 1.6)
self.assertAlmostEqual(p.MassPerArea(0, method='nplies'), 0.1 + 1 / 3.)
self.assertAlmostEqual(p.MassPerArea(1, method='nplies'), 0.2 + 1 / 3.)
self.assertAlmostEqual(p.MassPerArea(2, method='nplies'), 0.3 + 1 / 3.)
self.assertAlmostEqual(p.MassPerArea(0, method='rho*t'), 0.1 + 1 / 6.)
self.assertAlmostEqual(p.MassPerArea(1, method='rho*t'), 0.2 + 2 / 6.)
self.assertAlmostEqual(p.MassPerArea(2, method='rho*t'), 0.3 + 3 / 6.)
self.assertAlmostEqual(p.MassPerArea(0, method='t'), 0.1 + 1 / 6.)
self.assertAlmostEqual(p.MassPerArea(1, method='t'), 0.2 + 2 / 6.)
self.assertAlmostEqual(p.MassPerArea(2, method='t'), 0.3 + 3 / 6.)
with self.assertRaises(IndexError):
p.MassPerArea(3, method='nplies')
z = p.get_z_locations()
z_expected = array([0., T[0], T[0] + T[1], T[0] + T[1] + T[2]])
for za, ze in zip(z, z_expected):
self.assertAlmostEqual(za, ze)
#z0 =
p.z0 = 1.0
z_expected = 1.0 + z_expected
z = p.get_z_locations()
for za, ze in zip(z, z_expected):
self.assertAlmostEqual(za, ze)
