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DAMASK_EICMD
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polishing and slightly stricter tolerances

This commit is contained in:
Martin Diehl 2020-04-11 23:27:25 +02:00
parent c0c37fe6a5
commit f41a47ce8b
1 changed files with 17 additions and 17 deletions
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34
python/damask/_rotation.py
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@ -473,9 +473,9 @@ class Rotation:
q03 = qu[0]**2+qu[3]**2
q12 = qu[1]**2+qu[2]**2
chi = np.sqrt(q03*q12)
if np.abs(q12) < 1.e-6:
if np.abs(q12) < 1.e-8:
eu = np.array([np.arctan2(-P*2.0*qu[0]*qu[3],qu[0]**2-qu[3]**2), 0.0, 0.0])
elif np.abs(q03) < 1.e-6:
elif np.abs(q03) < 1.e-8:
eu = np.array([np.arctan2( 2.0*qu[1]*qu[2],qu[1]**2-qu[2]**2), np.pi, 0.0])
else:
eu = np.array([np.arctan2((-P*qu[0]*qu[2]+qu[1]*qu[3])*chi, (-P*qu[0]*qu[1]-qu[2]*qu[3])*chi ),
@ -490,18 +490,18 @@ class Rotation:
q12_s = qu[...,1:2]**2+qu[...,2:3]**2
chi = np.sqrt(q03_s*q12_s)
eu = np.where(np.abs(q12_s) < 1.0e-6,
np.block([np.arctan2(-P*2.0*qu[...,0:1]*qu[...,3:4],qu[...,0:1]**2-qu[...,3:4]**2),
np.zeros(qu.shape[:-1]+(2,))]),
np.block([np.arctan2((-P*q02+q13)*chi, (-P*q01-q23)*chi),
np.arctan2( 2.0*chi, q03_s-q12_s ),
np.arctan2(( P*q02+q13)*chi, (-P*q01+q23)*chi)])
eu = np.where(np.abs(q12_s) < 1.0e-8,
np.block([np.arctan2(-P*2.0*qu[...,0:1]*qu[...,3:4],qu[...,0:1]**2-qu[...,3:4]**2),
np.zeros(qu.shape[:-1]+(2,))]),
np.where(np.abs(q03_s) < 1.0e-8,
np.block([np.arctan2( 2.0*qu[...,1:2]*qu[...,2:3],qu[...,1:2]**2-qu[...,2:3]**2),
np.broadcast_to(np.pi,qu.shape[:-1]+(1,)),
np.zeros(qu.shape[:-1]+(1,))]),
np.block([np.arctan2((-P*q02+q13)*chi, (-P*q01-q23)*chi),
np.arctan2( 2.0*chi, q03_s-q12_s ),
np.arctan2(( P*q02+q13)*chi, (-P*q01+q23)*chi)])
)
)
eu = np.where(np.logical_and(np.abs(q03_s) < 1.0e-6, np.abs(q12_s) >= 1.0e-6),
np.block([np.arctan2( 2.0*qu[...,1:2]*qu[...,2:3],qu[...,1:2]**2-qu[...,2:3]**2),
np.ones( qu.shape[:-1]+(1,))*np.pi,
np.zeros(qu.shape[:-1]+(1,))]),
eu) # TODO: Where can be nested
# reduce Euler angles to definition range
eu[np.abs(eu)<1.e-6] = 0.0
eu = np.where(eu<0, (eu+2.0*np.pi)%np.array([2.0*np.pi,np.pi,2.0*np.pi]),eu)
@ -528,7 +528,7 @@ class Rotation:
s = np.sign(qu[...,0:1])/np.sqrt(qu[...,1:2]**2+qu[...,2:3]**2+qu[...,3:4]**2)
omega = 2.0 * np.arccos(np.clip(qu[...,0:1],-1.0,1.0))
ax = np.where(np.broadcast_to(qu[...,0:1] < 1.0e-6,qu.shape),
np.block([qu[...,1:4],np.ones(qu.shape[:-1]+(1,))*np.pi]),
np.block([qu[...,1:4],np.broadcast_to(np.pi,qu.shape[:-1]+(1,))]),
np.block([qu[...,1:4]*s,omega]))
ax[np.sum(np.abs(qu[...,1:4])**2,axis=-1) < 1.0e-6,] = [0.0, 0.0, 1.0, 0.0]
return ax
@ -547,7 +547,7 @@ class Rotation:
with np.errstate(invalid='ignore',divide='ignore'):
s = np.linalg.norm(qu[...,1:4],axis=-1,keepdims=True)
ro = np.where(np.broadcast_to(np.abs(qu[...,0:1]) < 1.0e-12,qu.shape),
np.block([qu[...,1:2], qu[...,2:3], qu[...,3:4], np.ones(qu.shape[:-1]+(1,))*np.inf]),
np.block([qu[...,1:2], qu[...,2:3], qu[...,3:4], np.broadcast_to(np.inf,qu.shape[:-1]+(1,))]),
np.block([qu[...,1:2]/s,qu[...,2:3]/s,qu[...,3:4]/s,
np.tan(np.arccos(np.clip(qu[...,0:1],-1.0,1.0)))
])
@ -805,7 +805,7 @@ class Rotation:
else:
c = np.cos(ax[...,3:4]*.5)
s = np.sin(ax[...,3:4]*.5)
qu = np.where(np.abs(ax[...,3:4])<1.e-12,[1.0, 0.0, 0.0, 0.0],np.block([c, ax[...,:3]*s]))
qu = np.where(np.abs(ax[...,3:4])<1.e-6,[1.0, 0.0, 0.0, 0.0],np.block([c, ax[...,:3]*s]))
return qu
@staticmethod
@ -988,7 +988,7 @@ class Rotation:
s += tfit[i] * hm
with np.errstate(invalid='ignore'):
ax = np.where(np.broadcast_to(np.abs(hmag_squared)<1.e-6,ho.shape[:-1]+(4,)),
np.array([ 0.0, 0.0, 1.0, 0.0 ]),
[ 0.0, 0.0, 1.0, 0.0 ],
np.block([ho/np.sqrt(hmag_squared),2.0*np.arccos(np.clip(s,-1.0,1.0))]))
return ax