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rotated geometry maintains center of gravity

This commit is contained in:
Philip Eisenlohr 2019-06-03 13:30:14 -04:00
parent dff690611e
commit 7ea417d585
1 changed files with 6 additions and 4 deletions
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10
processing/pre/geom_rotate.py
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@ -35,7 +35,7 @@ parser.add_option('-e', '--eulers',
parser.add_option('-d', '--degrees',
dest = 'degrees',
action = 'store_true',
help = 'Angles (Euler angles/axis angle) are given in degrees [%default]')
help = 'Euler angles/axis angle are given in degrees')
parser.add_option('-m', '--matrix',
dest = 'matrix',
type = 'float', nargs = 9, metavar = ' '.join(['float']*9),
@ -61,7 +61,7 @@ if [options.rotation,options.eulers,options.matrix,options.quaternion].count(Non
if options.quaternion is not None:
rot = damask.Rotation.fromQuaternion(np.array(options.quaternion)) # we might need P=+1 here, too...
if options.rotation is not None:
rot = damask.Rotation.fromAxisAngle(np.array(options.rotation),degrees=options.degrees,P=+1)
rot = damask.Rotation.fromAxisAngle(np.array(options.rotation),degrees=options.degrees,normalise=True,P=+1)
if options.matrix is not None:
rot = damask.Rotation.fromMatrix(np.array(options.Matrix))
if options.eulers is not None:
@ -76,7 +76,9 @@ for name in filenames:
damask.util.report(scriptName,name)
geom = damask.Geom.from_file(StringIO(''.join(sys.stdin.read())) if name is None else name)
size = geom.get_size()
grid = geom.get_grid()
origin = geom.get_origin()
microstructure = geom.get_microstructure()
fill = np.nanmax(microstructure)+1 if options.fill is None else options.fill
dtype = float if np.isnan(fill) or int(fill) != fill or microstructure.dtype==np.float else int
@ -90,7 +92,7 @@ for name in filenames:
microstructure = ndimage.rotate(microstructure,eulers[0],(0,1),order=0,
prefilter=False,output=dtype,cval=fill) # rotation around z
damask.util.croak(geom.update(microstructure,rescale=True))
damask.util.croak(geom.update(microstructure,origin=origin-(np.asarray(microstructure.shape)-grid)/2*size/grid,rescale=True))
geom.add_comments(scriptID + ' ' + ' '.join(sys.argv[1:]))
if name is None: