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VPSC Texture

The Los Alamos Visco-plastic Self Consistent code (VPSC) uses texture files, consisting of a discrete set of crystal orientations, defined by their associated Euler angles and volume fractions.

They look like this:

TEXTURE AT STRAIN =    0.5000
 1.555     1.000     0.630  <-- axes length of macro ellipsoid
90.00     90.00      0.00  <-- Euler angles of macro ellipsoid (deg)
B       500 
   -107.05    105.24    -41.51     0.0020000
   -145.57     41.09     64.31     0.0020000
     62.21    127.40   -116.27     0.0020000
    -58.49    123.53    -52.69     0.0020000
    -58.36     73.80    109.54     0.0020000
	---	---	---	---

• Line 1, 2, and 3 are reminders.
• Line 4 indicate the angle convention for Euler angles (B for Bunge, R for Roe, K for Kocks) and the number of orientations to be read from the file.
• Starting line 5, and to end: the three Euler angles defining each orientation, and the associated volume

fraction. They are read using free format. For Bunge angles, entre phi1, PHI, phi2.