From 890a6cf42fb708140068c1a810caaec2018aed00 Mon Sep 17 00:00:00 2001 From: Martin Diehl Date: Fri, 13 Sep 2019 06:40:41 -0700 Subject: [PATCH] avoid floating point comparison and simply play it safe --- processing/post/addStrainTensors.py | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/processing/post/addStrainTensors.py b/processing/post/addStrainTensors.py index 44b3841b4..c210291d9 100755 --- a/processing/post/addStrainTensors.py +++ b/processing/post/addStrainTensors.py @@ -147,9 +147,8 @@ for name in filenames: D[neg] *= -1. # ... flip value ... V[:,neg] *= -1. # ... and vector for i in [0,1,2]: - if np.dot(V[:,i],V[:,(i+1)%3]) != 0.0: # check each vector for orthogonality - V[:,(i+1)%3] = np.cross(V[:,(i+2)%3],V[:,i]) # correct next vector - V[:,(i+1)%3] /= np.linalg.norm(V[:,(i+1)%3]) # and renormalize (hyperphobic?) + V[:,(i+1)%3] = np.cross(V[:,(i+2)%3],V[:,i]) # correct next vector + V[:,(i+1)%3] /= np.linalg.norm(V[:,(i+1)%3]) # and renormalize (hyperphobic?) for theStrain in strains: d = operator(theStretch,theStrain,D) # operate on eigenvalues of U or V eps = np.dot(V,np.dot(np.diag(d),V.T)).reshape(9) # build tensor back from eigenvalue/vector basis