Interactive representation of Euler angles for crystallography
The small code helps to illustrate the Euler angles used in crystallography. It displays a lattice in a reference frame (usually given by the sample) with respect to the Bunge Euler angles and the corresponding pole figure.
This code was initially developed for educational purpose.
Simply run 3D_Euler.py in Python, and the interactive plot will open. It illustrates the subsequents Euler rotations used for representing the orientation of a crystal. Then, you can play around with some options, such as the crystal symmetry.
The projection used for pole figure can be set to stereographic (default) or Lambert (sometimes called equal-area).
If you use Spyder, you should configure it so that figures open in seperate windows. See here for details.