def testHkl001(self):
pos = YouPos(mu=-90,
delta=60,
nu=0,
eta=0,
chi=90 + 30,
phi=-90,
unit='DEG')
self._check((0, 0, 1), pos, {'alpha': 30, 'beta': 30})
def testHkl011(self):
# raise SkipTest()
# skipped because we can't calculate values to check against by hand
pos = YouPos(mu=-90,
delta=90,
nu=0,
eta=0,
chi=90 + 90,
phi=-90,
unit='DEG')
self._check((0, 1, 1), pos, {'alpha': 45, 'beta': 45})
def willmott_to_you_fixed_mu_chi(pos):
pos = YouPos(mu=-0,
delta=pos.delta,
nu=pos.gamma,
eta=pos.omegah,
chi=90,
phi=-pos.phi)
if pos.phi > 180:
pos.phi -= 360
elif pos.phi < -180:
pos.phi += 360
return pos
def willmott_to_you_fixed_eta_chi(pos):
pos = YouPos(mu=pos.omegah,
delta=-pos.gamma,
nu=pos.delta,
eta=0,
chi=0,
phi=-pos.phi,
unit='DEG')
if pos.phi > 180:
pos.phi -= 360
elif pos.phi < -180:
pos.phi += 360
return pos