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DAMASK_EICMD
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simplified

This commit is contained in:
Martin Diehl 2021-01-13 11:33:28 +01:00
parent 196902948f
commit 4c35da8627
1 changed files with 9 additions and 14 deletions
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21
python/damask/_grid.py
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@ -763,24 +763,19 @@ class Grid:
if fill is None: fill = np.nanmax(self.material) + 1
dtype = float if np.isnan(fill) or int(fill) != fill or self.material.dtype==np.float else int
Eulers = R.as_Euler_angles(degrees=True)
material_in = self.material.copy()
material = self.material
# These rotations are always applied in the reference coordinate system, i.e. (z,x,z) not (z,x',z'')
# see https://www.cs.utexas.edu/~theshark/courses/cs354/lectures/cs354-14.pdf
for angle,axes in zip(Eulers[::-1], [(0,1),(1,2),(0,1)]):
material_out = ndimage.rotate(material_in,angle,axes,order=0,
prefilter=False,output=dtype,cval=fill)
if np.prod(material_in.shape) == np.prod(material_out.shape):
for angle,axes in zip(R.as_Euler_angles(degrees=True)[::-1], [(0,1),(1,2),(0,1)]):
material_temp = ndimage.rotate(material,angle,axes,order=0,prefilter=False,output=dtype,cval=fill)
# avoid scipy interpolation errors for rotations close to multiples of 90°
material_in = np.rot90(material_in,k=np.rint(angle/90.).astype(int),axes=axes)
else:
material_in = material_out
material = material_temp if np.prod(material_temp.shape) != np.prod(material.shape) else \
np.rot90(material,k=np.rint(angle/90.).astype(int),axes=axes)
origin = self.origin-(np.asarray(material_in.shape)-self.cells)*.5 * self.size/self.cells
origin = self.origin-(np.asarray(material.shape)-self.cells)*.5 * self.size/self.cells
return Grid(material = material_in,
size = self.size/self.cells*np.asarray(material_in.shape),
return Grid(material = material,
size = self.size/self.cells*np.asarray(material.shape),
origin = origin,
comments = self.comments+[util.execution_stamp('Grid','rotate')],
)