4 space indents are common practice
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commit
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@ -10,380 +10,378 @@ from . import version
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class Geom():
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class Geom():
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"""Geometry definition for grid solvers."""
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"""Geometry definition for grid solvers."""
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def __init__(self,microstructure,size,origin=[0.0,0.0,0.0],homogenization=1,comments=[]):
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def __init__(self,microstructure,size,origin=[0.0,0.0,0.0],homogenization=1,comments=[]):
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"""
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"""
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New geometry definition from array of microstructures and size.
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New geometry definition from array of microstructures and size.
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Parameters
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Parameters
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----------
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----------
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microstructure : numpy.ndarray
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microstructure : numpy.ndarray
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microstructure array (3D)
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microstructure array (3D)
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size : list or numpy.ndarray
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size : list or numpy.ndarray
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physical size of the microstructure in meter.
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physical size of the microstructure in meter.
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origin : list or numpy.ndarray, optional
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origin : list or numpy.ndarray, optional
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physical origin of the microstructure in meter.
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physical origin of the microstructure in meter.
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homogenization : integer, optional
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homogenization : integer, optional
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homogenization index.
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homogenization index.
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comments : list of str, optional
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comments : list of str, optional
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comments lines.
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comments lines.
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"""
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"""
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self.__transforms__ = \
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self.__transforms__ = \
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self.set_microstructure(microstructure)
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self.set_microstructure(microstructure)
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self.set_size(size)
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self.set_size(size)
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self.set_origin(origin)
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self.set_origin(origin)
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self.set_homogenization(homogenization)
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self.set_homogenization(homogenization)
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self.set_comments(comments)
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self.set_comments(comments)
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def __repr__(self):
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def __repr__(self):
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"""Basic information on geometry definition."""
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"""Basic information on geometry definition."""
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return util.srepr([
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return util.srepr([
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'grid a b c: {}'.format(' x '.join(map(str,self.get_grid ()))),
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'grid a b c: {}'.format(' x '.join(map(str,self.get_grid ()))),
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'size x y z: {}'.format(' x '.join(map(str,self.get_size ()))),
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'size x y z: {}'.format(' x '.join(map(str,self.get_size ()))),
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'origin x y z: {}'.format(' '.join(map(str,self.get_origin()))),
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'origin x y z: {}'.format(' '.join(map(str,self.get_origin()))),
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'homogenization: {}'.format(self.get_homogenization()),
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'homogenization: {}'.format(self.get_homogenization()),
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'# microstructures: {}'.format(len(np.unique(self.microstructure))),
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'# microstructures: {}'.format(len(np.unique(self.microstructure))),
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'max microstructure: {}'.format(np.nanmax(self.microstructure)),
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'max microstructure: {}'.format(np.nanmax(self.microstructure)),
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])
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])
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def update(self,microstructure=None,size=None,origin=None,rescale=False):
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def update(self,microstructure=None,size=None,origin=None,rescale=False):
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"""
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"""
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Updates microstructure and size.
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Updates microstructure and size.
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Parameters
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Parameters
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----------
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----------
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microstructure : numpy.ndarray, optional
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microstructure : numpy.ndarray, optional
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microstructure array (3D).
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microstructure array (3D).
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size : list or numpy.ndarray, optional
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size : list or numpy.ndarray, optional
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physical size of the microstructure in meter.
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physical size of the microstructure in meter.
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origin : list or numpy.ndarray, optional
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origin : list or numpy.ndarray, optional
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physical origin of the microstructure in meter.
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physical origin of the microstructure in meter.
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rescale : bool, optional
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rescale : bool, optional
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ignore size parameter and rescale according to change of grid points.
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ignore size parameter and rescale according to change of grid points.
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"""
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"""
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grid_old = self.get_grid()
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grid_old = self.get_grid()
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size_old = self.get_size()
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size_old = self.get_size()
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origin_old = self.get_origin()
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origin_old = self.get_origin()
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unique_old = len(np.unique(self.microstructure))
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unique_old = len(np.unique(self.microstructure))
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max_old = np.nanmax(self.microstructure)
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max_old = np.nanmax(self.microstructure)
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if size is not None and rescale:
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if size is not None and rescale:
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raise ValueError('Either set size explicitly or rescale automatically')
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raise ValueError('Either set size explicitly or rescale automatically')
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self.set_microstructure(microstructure)
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self.set_microstructure(microstructure)
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self.set_origin(origin)
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self.set_origin(origin)
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if size is not None:
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if size is not None:
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self.set_size(size)
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self.set_size(size)
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elif rescale:
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elif rescale:
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self.set_size(self.get_grid()/grid_old*self.size)
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self.set_size(self.get_grid()/grid_old*self.size)
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message = ['grid a b c: {}'.format(' x '.join(map(str,grid_old)))]
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message = ['grid a b c: {}'.format(' x '.join(map(str,grid_old)))]
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if np.any(grid_old != self.get_grid()):
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if np.any(grid_old != self.get_grid()):
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message[-1] = util.delete(message[-1])
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message[-1] = util.delete(message[-1])
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message.append(util.emph('grid a b c: {}'.format(' x '.join(map(str,self.get_grid())))))
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message.append(util.emph('grid a b c: {}'.format(' x '.join(map(str,self.get_grid())))))
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message.append('size x y z: {}'.format(' x '.join(map(str,size_old))))
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message.append('size x y z: {}'.format(' x '.join(map(str,size_old))))
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if np.any(size_old != self.get_size()):
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if np.any(size_old != self.get_size()):
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message[-1] = util.delete(message[-1])
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message[-1] = util.delete(message[-1])
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message.append(util.emph('size x y z: {}'.format(' x '.join(map(str,self.get_size())))))
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message.append(util.emph('size x y z: {}'.format(' x '.join(map(str,self.get_size())))))
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message.append('origin x y z: {}'.format(' '.join(map(str,origin_old))))
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message.append('origin x y z: {}'.format(' '.join(map(str,origin_old))))
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if np.any(origin_old != self.get_origin()):
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if np.any(origin_old != self.get_origin()):
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message[-1] = util.delete(message[-1])
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message[-1] = util.delete(message[-1])
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message.append(util.emph('origin x y z: {}'.format(' '.join(map(str,self.get_origin())))))
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message.append(util.emph('origin x y z: {}'.format(' '.join(map(str,self.get_origin())))))
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message.append('homogenization: {}'.format(self.get_homogenization()))
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message.append('homogenization: {}'.format(self.get_homogenization()))
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message.append('# microstructures: {}'.format(unique_old))
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message.append('# microstructures: {}'.format(unique_old))
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if unique_old != len(np.unique(self.microstructure)):
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if unique_old != len(np.unique(self.microstructure)):
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message[-1] = util.delete(message[-1])
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message[-1] = util.delete(message[-1])
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message.append(util.emph('# microstructures: {}'.format(len(np.unique(self.microstructure)))))
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message.append(util.emph('# microstructures: {}'.format(len(np.unique(self.microstructure)))))
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message.append('max microstructure: {}'.format(max_old))
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message.append('max microstructure: {}'.format(max_old))
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if max_old != np.nanmax(self.microstructure):
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if max_old != np.nanmax(self.microstructure):
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message[-1] = util.delete(message[-1])
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message[-1] = util.delete(message[-1])
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message.append(util.emph('max microstructure: {}'.format(np.nanmax(self.microstructure))))
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message.append(util.emph('max microstructure: {}'.format(np.nanmax(self.microstructure))))
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return util.return_message(message)
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return util.return_message(message)
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def set_comments(self,comments):
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def set_comments(self,comments):
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"""
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"""
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Replaces all existing comments.
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Replaces all existing comments.
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Parameters
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Parameters
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----------
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----------
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comments : list of str
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comments : list of str
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new comments.
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new comments.
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"""
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"""
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self.comments = []
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self.comments = []
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self.add_comments(comments)
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self.add_comments(comments)
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def add_comments(self,comments):
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def add_comments(self,comments):
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"""
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"""
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Appends comments to existing comments.
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Appends comments to existing comments.
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Parameters
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Parameters
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----------
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----------
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comments : list of str
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comments : list of str
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new comments.
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new comments.
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"""
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"""
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self.comments += [str(c) for c in comments] if isinstance(comments,list) else [str(comments)]
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self.comments += [str(c) for c in comments] if isinstance(comments,list) else [str(comments)]
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def set_microstructure(self,microstructure):
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def set_microstructure(self,microstructure):
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"""
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"""
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Replaces the existing microstructure representation.
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Replaces the existing microstructure representation.
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Parameters
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Parameters
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----------
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----------
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microstructure : numpy.ndarray
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microstructure : numpy.ndarray
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microstructure array (3D).
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microstructure array (3D).
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"""
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"""
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if microstructure is not None:
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if microstructure is not None:
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if len(microstructure.shape) != 3:
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if len(microstructure.shape) != 3:
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raise ValueError('Invalid microstructure shape {}'.format(*microstructure.shape))
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raise ValueError('Invalid microstructure shape {}'.format(*microstructure.shape))
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elif microstructure.dtype not in np.sctypes['float'] + np.sctypes['int']:
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elif microstructure.dtype not in np.sctypes['float'] + np.sctypes['int']:
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raise TypeError('Invalid data type {} for microstructure'.format(microstructure.dtype))
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raise TypeError('Invalid data type {} for microstructure'.format(microstructure.dtype))
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else:
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else:
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self.microstructure = np.copy(microstructure)
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self.microstructure = np.copy(microstructure)
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def set_size(self,size):
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def set_size(self,size):
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"""
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"""
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Replaces the existing size information.
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Replaces the existing size information.
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Parameters
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Parameters
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----------
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----------
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size : list or numpy.ndarray
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size : list or numpy.ndarray
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physical size of the microstructure in meter.
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physical size of the microstructure in meter.
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"""
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"""
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if size is None:
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if size is None:
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grid = np.asarray(self.microstructure.shape)
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grid = np.asarray(self.microstructure.shape)
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self.size = grid/np.max(grid)
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self.size = grid/np.max(grid)
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else:
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else:
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if len(size) != 3 or any(np.array(size)<=0):
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if len(size) != 3 or any(np.array(size)<=0):
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raise ValueError('Invalid size {}'.format(*size))
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raise ValueError('Invalid size {}'.format(*size))
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else:
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else:
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self.size = np.array(size)
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self.size = np.array(size)
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def set_origin(self,origin):
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def set_origin(self,origin):
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"""
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"""
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Replaces the existing origin information.
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Replaces the existing origin information.
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Parameters
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Parameters
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----------
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----------
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origin : list or numpy.ndarray
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origin : list or numpy.ndarray
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physical origin of the microstructure in meter
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physical origin of the microstructure in meter
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"""
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"""
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if origin is not None:
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if origin is not None:
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if len(origin) != 3:
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if len(origin) != 3:
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raise ValueError('Invalid origin {}'.format(*origin))
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raise ValueError('Invalid origin {}'.format(*origin))
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else:
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else:
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self.origin = np.array(origin)
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self.origin = np.array(origin)
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def set_homogenization(self,homogenization):
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def set_homogenization(self,homogenization):
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"""
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"""
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Replaces the existing homogenization index.
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Replaces the existing homogenization index.
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Parameters
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Parameters
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----------
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----------
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homogenization : integer
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homogenization : integer
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homogenization index
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homogenization index
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"""
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"""
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if homogenization is not None:
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if homogenization is not None:
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if not isinstance(homogenization,int) or homogenization < 1:
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if not isinstance(homogenization,int) or homogenization < 1:
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raise TypeError('Invalid homogenization {}'.format(homogenization))
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raise TypeError('Invalid homogenization {}'.format(homogenization))
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else:
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else:
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self.homogenization = homogenization
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self.homogenization = homogenization
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def get_microstructure(self):
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def get_microstructure(self):
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"""Return the microstructure representation."""
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"""Return the microstructure representation."""
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return np.copy(self.microstructure)
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return np.copy(self.microstructure)
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def get_size(self):
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def get_size(self):
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"""Return the physical size in meter."""
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"""Return the physical size in meter."""
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return np.copy(self.size)
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return np.copy(self.size)
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def get_origin(self):
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def get_origin(self):
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"""Return the origin in meter."""
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"""Return the origin in meter."""
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return np.copy(self.origin)
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return np.copy(self.origin)
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def get_grid(self):
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def get_grid(self):
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"""Return the grid discretization."""
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"""Return the grid discretization."""
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return np.array(self.microstructure.shape)
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return np.array(self.microstructure.shape)
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def get_homogenization(self):
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def get_homogenization(self):
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"""Return the homogenization index."""
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"""Return the homogenization index."""
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return self.homogenization
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return self.homogenization
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def get_comments(self):
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def get_comments(self):
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"""Return the comments."""
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"""Return the comments."""
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return self.comments[:]
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return self.comments[:]
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def get_header(self):
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def get_header(self):
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"""Return the full header (grid, size, origin, homogenization, comments)."""
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"""Return the full header (grid, size, origin, homogenization, comments)."""
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header = ['{} header'.format(len(self.comments)+4)] + self.comments
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header = ['{} header'.format(len(self.comments)+4)] + self.comments
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header.append('grid a {} b {} c {}'.format(*self.get_grid()))
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header.append('grid a {} b {} c {}'.format(*self.get_grid()))
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header.append('size x {} y {} z {}'.format(*self.get_size()))
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header.append('size x {} y {} z {}'.format(*self.get_size()))
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header.append('origin x {} y {} z {}'.format(*self.get_origin()))
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header.append('origin x {} y {} z {}'.format(*self.get_origin()))
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header.append('homogenization {}'.format(self.get_homogenization()))
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header.append('homogenization {}'.format(self.get_homogenization()))
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return header
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return header
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@classmethod
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@classmethod
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def from_file(cls,fname):
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def from_file(cls,fname):
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"""
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"""
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Reads a geom file.
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Reads a geom file.
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Parameters
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Parameters
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----------
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----------
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fname : str or file handle
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fname : str or file handle
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geometry file to read.
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geometry file to read.
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"""
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"""
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with (open(fname) if isinstance(fname,str) else fname) as f:
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with (open(fname) if isinstance(fname,str) else fname) as f:
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f.seek(0)
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f.seek(0)
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header_length,keyword = f.readline().split()[:2]
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header_length,keyword = f.readline().split()[:2]
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header_length = int(header_length)
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header_length = int(header_length)
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content = f.readlines()
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content = f.readlines()
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if not keyword.startswith('head') or header_length < 3:
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if not keyword.startswith('head') or header_length < 3:
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raise TypeError('Header length information missing or invalid')
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raise TypeError('Header length information missing or invalid')
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comments = []
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comments = []
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for i,line in enumerate(content[:header_length]):
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for i,line in enumerate(content[:header_length]):
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items = line.lower().strip().split()
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items = line.lower().strip().split()
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key = items[0] if len(items) > 0 else ''
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key = items[0] if len(items) > 0 else ''
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if key == 'grid':
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if key == 'grid':
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grid = np.array([ int(dict(zip(items[1::2],items[2::2]))[i]) for i in ['a','b','c']])
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grid = np.array([ int(dict(zip(items[1::2],items[2::2]))[i]) for i in ['a','b','c']])
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elif key == 'size':
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elif key == 'size':
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size = np.array([float(dict(zip(items[1::2],items[2::2]))[i]) for i in ['x','y','z']])
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size = np.array([float(dict(zip(items[1::2],items[2::2]))[i]) for i in ['x','y','z']])
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elif key == 'origin':
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elif key == 'origin':
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origin = np.array([float(dict(zip(items[1::2],items[2::2]))[i]) for i in ['x','y','z']])
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origin = np.array([float(dict(zip(items[1::2],items[2::2]))[i]) for i in ['x','y','z']])
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elif key == 'homogenization':
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elif key == 'homogenization':
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homogenization = int(items[1])
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homogenization = int(items[1])
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else:
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else:
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comments.append(line.strip())
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comments.append(line.strip())
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microstructure = np.empty(grid.prod()) # initialize as flat array
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microstructure = np.empty(grid.prod()) # initialize as flat array
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i = 0
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i = 0
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for line in content[header_length:]:
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for line in content[header_length:]:
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items = line.split()
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items = line.split()
|
||||||
if len(items) == 3:
|
if len(items) == 3:
|
||||||
if items[1].lower() == 'of':
|
if items[1].lower() == 'of':
|
||||||
items = np.ones(int(items[0]))*float(items[2])
|
items = np.ones(int(items[0]))*float(items[2])
|
||||||
elif items[1].lower() == 'to':
|
elif items[1].lower() == 'to':
|
||||||
items = np.linspace(int(items[0]),int(items[2]),
|
items = np.linspace(int(items[0]),int(items[2]),
|
||||||
abs(int(items[2])-int(items[0]))+1,dtype=float)
|
abs(int(items[2])-int(items[0]))+1,dtype=float)
|
||||||
else: items = list(map(float,items))
|
else: items = list(map(float,items))
|
||||||
else: items = list(map(float,items))
|
else: items = list(map(float,items))
|
||||||
|
microstructure[i:i+len(items)] = items
|
||||||
microstructure[i:i+len(items)] = items
|
i += len(items)
|
||||||
i += len(items)
|
|
||||||
|
if i != grid.prod():
|
||||||
if i != grid.prod():
|
raise TypeError('Invalid file: expected {} entries,found {}'.format(grid.prod(),i))
|
||||||
raise TypeError('Invalid file: expected {} entries,found {}'.format(grid.prod(),i))
|
|
||||||
|
microstructure = microstructure.reshape(grid,order='F')
|
||||||
microstructure = microstructure.reshape(grid,order='F')
|
if not np.any(np.mod(microstructure.flatten(),1) != 0.0): # no float present
|
||||||
if not np.any(np.mod(microstructure.flatten(),1) != 0.0): # no float present
|
microstructure = microstructure.astype('int')
|
||||||
microstructure = microstructure.astype('int')
|
|
||||||
|
return cls(microstructure.reshape(grid),size,origin,homogenization,comments)
|
||||||
return cls(microstructure.reshape(grid),size,origin,homogenization,comments)
|
|
||||||
|
|
||||||
def to_file(self,fname):
|
def to_file(self,fname):
|
||||||
"""
|
"""
|
||||||
Writes a geom file.
|
Writes a geom file.
|
||||||
|
|
||||||
Parameters
|
Parameters
|
||||||
----------
|
----------
|
||||||
fname : str or file handle
|
fname : str or file handle
|
||||||
geometry file to write.
|
geometry file to write.
|
||||||
|
|
||||||
"""
|
"""
|
||||||
header = self.get_header()
|
header = self.get_header()
|
||||||
grid = self.get_grid()
|
grid = self.get_grid()
|
||||||
format_string = '%{}i'.format(1+int(np.floor(np.log10(np.nanmax(self.microstructure))))) if self.microstructure.dtype == int \
|
format_string = '%{}i'.format(1+int(np.floor(np.log10(np.nanmax(self.microstructure))))) if self.microstructure.dtype == int \
|
||||||
else '%g'
|
else '%g'
|
||||||
np.savetxt(fname,
|
np.savetxt(fname,
|
||||||
self.microstructure.reshape([grid[0],np.prod(grid[1:])],order='F').T,
|
self.microstructure.reshape([grid[0],np.prod(grid[1:])],order='F').T,
|
||||||
header='\n'.join(header), fmt=format_string, comments='')
|
header='\n'.join(header), fmt=format_string, comments='')
|
||||||
|
|
||||||
|
def to_vtk(self,fname=None):
|
||||||
|
"""
|
||||||
def to_vtk(self,fname=None):
|
Generates vtk file.
|
||||||
"""
|
|
||||||
Generates vtk file.
|
Parameters
|
||||||
|
----------
|
||||||
Parameters
|
fname : str, optional
|
||||||
----------
|
vtk file to write. If no file is given, a string is returned.
|
||||||
fname : str, optional
|
|
||||||
vtk file to write. If no file is given, a string is returned.
|
"""
|
||||||
|
grid = self.get_grid() + np.ones(3,dtype=int)
|
||||||
"""
|
size = self.get_size()
|
||||||
grid = self.get_grid() + np.ones(3,dtype=int)
|
origin = self.get_origin()
|
||||||
size = self.get_size()
|
|
||||||
origin = self.get_origin()
|
coords = [
|
||||||
|
np.linspace(0,size[0],grid[0]) + origin[0],
|
||||||
coords = [
|
np.linspace(0,size[1],grid[1]) + origin[1],
|
||||||
np.linspace(0,size[0],grid[0]) + origin[0],
|
np.linspace(0,size[2],grid[2]) + origin[2]
|
||||||
np.linspace(0,size[1],grid[1]) + origin[1],
|
]
|
||||||
np.linspace(0,size[2],grid[2]) + origin[2]
|
|
||||||
]
|
rGrid = vtk.vtkRectilinearGrid()
|
||||||
|
coordArray = [vtk.vtkDoubleArray(),vtk.vtkDoubleArray(),vtk.vtkDoubleArray()]
|
||||||
rGrid = vtk.vtkRectilinearGrid()
|
|
||||||
coordArray = [vtk.vtkDoubleArray(),vtk.vtkDoubleArray(),vtk.vtkDoubleArray()]
|
rGrid.SetDimensions(*grid)
|
||||||
|
for d,coord in enumerate(coords):
|
||||||
rGrid.SetDimensions(*grid)
|
for c in coord:
|
||||||
for d,coord in enumerate(coords):
|
coordArray[d].InsertNextValue(c)
|
||||||
for c in coord:
|
|
||||||
coordArray[d].InsertNextValue(c)
|
rGrid.SetXCoordinates(coordArray[0])
|
||||||
|
rGrid.SetYCoordinates(coordArray[1])
|
||||||
rGrid.SetXCoordinates(coordArray[0])
|
rGrid.SetZCoordinates(coordArray[2])
|
||||||
rGrid.SetYCoordinates(coordArray[1])
|
|
||||||
rGrid.SetZCoordinates(coordArray[2])
|
ms = numpy_support.numpy_to_vtk(num_array=self.microstructure.flatten(order='F'),
|
||||||
|
array_type=vtk.VTK_INT if self.microstructure.dtype == int else vtk.VTK_FLOAT)
|
||||||
ms = numpy_support.numpy_to_vtk(num_array=self.microstructure.flatten(order='F'),
|
ms.SetName('microstructure')
|
||||||
array_type=vtk.VTK_INT if self.microstructure.dtype == int else vtk.VTK_FLOAT)
|
rGrid.GetCellData().AddArray(ms)
|
||||||
ms.SetName('microstructure')
|
|
||||||
rGrid.GetCellData().AddArray(ms)
|
|
||||||
|
if fname is None:
|
||||||
|
writer = vtk.vtkDataSetWriter()
|
||||||
if fname is None:
|
writer.SetHeader('damask.Geom '+version)
|
||||||
writer = vtk.vtkDataSetWriter()
|
writer.WriteToOutputStringOn()
|
||||||
writer.SetHeader('damask.Geom '+version)
|
else:
|
||||||
writer.WriteToOutputStringOn()
|
writer = vtk.vtkXMLRectilinearGridWriter()
|
||||||
else:
|
writer.SetCompressorTypeToZLib()
|
||||||
writer = vtk.vtkXMLRectilinearGridWriter()
|
writer.SetDataModeToBinary()
|
||||||
writer.SetCompressorTypeToZLib()
|
|
||||||
writer.SetDataModeToBinary()
|
ext = os.path.splitext(fname)[1]
|
||||||
|
if ext == '':
|
||||||
ext = os.path.splitext(fname)[1]
|
name = fname + '.' + writer.GetDefaultFileExtension()
|
||||||
if ext == '':
|
elif ext == writer.GetDefaultFileExtension():
|
||||||
name = fname + '.' + writer.GetDefaultFileExtension()
|
name = fname
|
||||||
elif ext == writer.GetDefaultFileExtension():
|
else:
|
||||||
name = fname
|
raise ValueError("unknown extension {}".format(ext))
|
||||||
else:
|
writer.SetFileName(name)
|
||||||
raise ValueError("unknown extension {}".format(ext))
|
|
||||||
writer.SetFileName(name)
|
writer.SetInputData(rGrid)
|
||||||
|
writer.Write()
|
||||||
writer.SetInputData(rGrid)
|
|
||||||
writer.Write()
|
if fname is None: return writer.GetOutputString()
|
||||||
|
|
||||||
if fname is None: return writer.GetOutputString()
|
|
||||||
|
def show(self):
|
||||||
|
"""Show raw content (as in file)."""
|
||||||
def show(self):
|
f=StringIO()
|
||||||
"""Show raw content (as in file)."""
|
self.to_file(f)
|
||||||
f=StringIO()
|
f.seek(0)
|
||||||
self.to_file(f)
|
return ''.join(f.readlines())
|
||||||
f.seek(0)
|
|
||||||
return ''.join(f.readlines())
|
|
||||||
|
|
Loading…
Reference in New Issue