def doTest(self, M_file, H_file, epsilon):
# load ref
M = readOMF(M_file)
H_ref = readOMF(H_file)
H = VectorField(M.mesh)
axis = VectorField(M.mesh); axis.fill((1.0/math.sqrt(3.0), 1.0/math.sqrt(3.0), 1.0/math.sqrt(3.0)))
k = Field(M.mesh); k.fill(520e3)
Ms = Field(M.mesh); Ms.fill(8e5)
# calculate
magneto.uniaxial_anisotropy(axis, k, Ms, M, H)
# compare
self.assertVectorFieldEqual(H_ref, H, epsilon)
def doTest(self, M_file, H_file, epsilon):
# load ref
M = readOMF(M_file)
H_ref = readOMF(H_file)
H = VectorField(H_ref.mesh)
# setup
stray = StrayFieldCalculator(M.mesh)
H.fill((1.0, 2.0, 3.0))
# calculate
for t in range(1):
stray.calculate(M, H)
# compare
self.assertVectorFieldEqual(H_ref, H, epsilon)
def do_test(self, M_file, H_file, epsilon):
# load ref
M = readOMF(M_file)
H_ref = readOMF(H_file)
H = VectorField(M.mesh)
A = Field(M.mesh); A.fill(Material.Py().A)
Ms = Field(M.mesh); Ms.fill(Material.Py().Ms)
# calculate
mesh = M.mesh
nx, ny, nz = mesh.num_nodes
dx, dy, dz = mesh.delta
bcx, bcy, bcz = False, False, False
magneto.exchange(nx, ny, nz, dx, dy, dz, bcx, bcy, bcz, Ms, A, M, H)
# compare
self.assertVectorFieldEqual(H_ref, H, epsilon)
def doTest(self, M_file, H_file, epsilon):
# load ref
M = readOMF(M_file)
H_ref = readOMF(H_file)
H = VectorField(M.mesh)
axis = VectorField(M.mesh)
axis.fill(
(1.0 / math.sqrt(3.0), 1.0 / math.sqrt(3.0), 1.0 / math.sqrt(3.0)))
k = Field(M.mesh)
k.fill(520e3)
Ms = Field(M.mesh)
Ms.fill(8e5)
# calculate
magneto.uniaxial_anisotropy(axis, k, Ms, M, H)
# compare
self.assertVectorFieldEqual(H_ref, H, epsilon)
#!/usr/bin/python
import sys
import os
import math
from magnum import readOMF, writeImage
if len(sys.argv) != 2:
print "Usage: %s <input.omf>" % sys.argv[0]
sys.exit(-1)
omf_file = sys.argv[1]
base, ext = os.path.splitext(omf_file)
M = readOMF(omf_file)
Ms = M.absMax()
writeImage(base + "-x.png", M, "x", color_range=(-Ms, +Ms))
writeImage(base + "-y.png", M, "y", color_range=(-Ms, +Ms))
writeImage(base + "-z.png", M, "z", color_range=(-Ms, +Ms))
writeImage(base + "-xy-angle.png", M, "xy-angle", color_range=(-math.pi, +math.pi))
writeImage(base + "-mag.png", M, "mag", color_range=(0, Ms))