Vectorial MFP Interpolation

Next step is to perform vectorial MFP interpolation, as documented here. For systems with translational symmetry along the z axis, you can use

from openbte import RTA2DSym

rta_data = RTA2DSym(rta_data,**kwargs)

where options include n_mfp and n_phi, i.e. the number of MFP (default = 50) and polar angle bins (default = 48). If you are simulating a 3D material (not yet fully supported), you can use

from openbte import RTA3D

mat = RTA3D(rta_data,**kwargs)

where options now include n_theta as well, i.e. the azimuthal angular bins.