Merge branch 'development' of magit1.mpie.de:damask/DAMASK into development

This commit is contained in:
Martin Diehl 2017-03-05 19:04:13 +01:00
commit e1e528d9a8
1 changed files with 28 additions and 43 deletions

View File

@ -9,8 +9,6 @@ import damask
scriptName = os.path.splitext(os.path.basename(__file__))[0]
scriptID = ' '.join([scriptName,damask.version])
oversampling = 2.
#--------------------------------------------------------------------------------------------------
# MAIN
#--------------------------------------------------------------------------------------------------
@ -124,8 +122,8 @@ for name in filenames:
size = microstructure.shape
if options.periodic: # use padding to achieve periodicity
# change to coordinate space where the primitive is the unit sphere/cube/etc
if options.periodic: # use padding to achieve periodicity
(X, Y, Z) = np.meshgrid(np.arange(-size[0]/2, (3*size[0])/2, dtype=np.float32), # 50% padding on each side
np.arange(-size[1]/2, (3*size[1])/2, dtype=np.float32),
np.arange(-size[2]/2, (3*size[2])/2, dtype=np.float32),
@ -143,6 +141,12 @@ for name in filenames:
-size[0]/2, axis=0),
-size[1]/2, axis=1),
-size[2]/2, axis=2)
else: # nonperiodic, much lighter on resources
# change to coordinate space where the primitive is the unit sphere/cube/etc
(X, Y, Z) = np.meshgrid(np.arange(0, size[0], dtype=np.float32),
np.arange(0, size[1], dtype=np.float32),
np.arange(0, size[2], dtype=np.float32),
indexing='ij')
# first by translating the center onto 0, 0.5 shifts the voxel origin onto the center of the voxel
X -= options.center[0] - 0.5
@ -156,10 +160,12 @@ for name in filenames:
Y /= options.dimension[1] * 0.5
Z /= options.dimension[2] * 0.5
# High exponents can cause underflow & overflow - loss of precision is okay here, we just compare it to 1, so +infinity and 0 are fine
old_settings = np.seterr()
np.seterr(over='ignore', under='ignore')
if options.periodic: # use padding to achieve periodicity
inside = np.zeros(size, dtype=bool)
for i in range(2):
for j in range(2):
@ -176,34 +182,13 @@ for name in filenames:
size[2] * k : size[2] * (k+1)])**options.exponent[2] < 1)
microstructure = np.where(inside, options.fill, microstructure)
np.seterr(**old_settings) # Reset warnings to old state
else: # nonperiodic, much lighter on resources
# change to coordinate space where the primitive is the unit sphere/cube/etc
(X, Y, Z) = np.meshgrid(np.arange(0, size[0], dtype=np.float32),
np.arange(0, size[1], dtype=np.float32),
np.arange(0, size[2], dtype=np.float32),
indexing='ij')
# first by translating the center onto 0, 0.5 shifts the voxel origin onto the center of the voxel
X -= options.center[0] - 0.5
Y -= options.center[1] - 0.5
Z -= options.center[2] - 0.5
# and then by applying the quaternion (the implementation of quat. does q*v*q.conj)
# this should be rotation.conjugate() * (X,Y,Z), but it is this way for backwards compatibility with the older version of this script
(X, Y, Z) = rotation * (X, Y, Z)
# and finally by scaling (we don't worry about options.dimension being negative, np.abs occurs on the microstructure = np.where... line)
X /= options.dimension[0] * 0.5
Y /= options.dimension[1] * 0.5
Z /= options.dimension[2] * 0.5
# High exponents can cause underflow & overflow - loss of precision is okay here, we just compare it to 1, so +infinity and 0 are fine
old_settings = np.seterr()
np.seterr(over='ignore', under='ignore')
microstructure = np.where(np.abs(X)**options.exponent[0] +
np.abs(Y)**options.exponent[1] +
np.abs(Z)**options.exponent[2] < 1, options.fill, microstructure)
np.seterr(**old_settings) # Reset warnings to old state
np.seterr(**old_settings) # Reset warnings to old state
newInfo['microstructures'] = microstructure.max()
# --- report ---------------------------------------------------------------------------------------