def __set_g(self, g):
self.__g = array(g)
self.gnorm = Physics.norm(g)
self.gnormalized = Physics.normalize(g)
# angular coordinates (azimuth and colatitude) of the g versor
self.gtheta = math.acos(self.gnormalized[2])
self.gphi = Physics.atan2(g[1], g[0])
def __set_k(self, k):
self.__k = array(k)
self.knorm=Physics.norm(k)
self.knormalized = Physics.normalize(k)
# Calculates wavelength and energy of the photon
if self.knorm==0.:
self.__e, self.__lam=0., '+inf'
else:
self.__lam=2.*pi/self.knorm
self.__e=Booklet.hc/self.__lam
def __set_g(self, g):
self.__g = array(g)
self.gnorm = Physics.norm(g)
self.gnormalized = Physics.normalize(g)
# angular coordinates of the reciprocal lattice vector g
# gtheta is the polar angle (the angle between z axis and g vector)
# gphi is the azimuthal angle (in the plane xy, from the x axis)
self.gtheta = math.acos(self.gnormalized[2])
self.gphi = Physics.atan2(g[1], g[0])