def setStageSpeed(self, value):
"""Value be 0 - 1"""
if value > 1 or value < 0:
raise FEIValueError(
f'setStageSpeed value must be between 0 and 1. Input: {value}')
self.tom.Stage.Speed = value
def getApertureSize(self, aperture):
if aperture == 'C1':
return self.tom.Illumination.C1ApertureSize * 1e3
elif aperture == 'C2':
return self.tom.Illumination.C2ApertureSize * 1e3
else:
raise FEIValueError("aperture must be specified as 'C1' or 'C2'.")
def setFunctionMode(self, value):
"""{1:'LM',2:'Mi',3:'SA',4:'Mh',5:'LAD',6:'D'}"""
if isinstance(value, str):
try:
value = FUNCTION_MODES.index(value)
except ValueError:
raise FEIValueError(f'Unrecognized function mode: {value}')
self.FunctionMode_value = value
def setBeamTilt(self, x, y):
"""rotation center in FEI."""
bt = self.tom.Illumination.BeamAlignmentTilt
if x is not None:
if abs(x) > 1:
raise FEIValueError(
f'BeamTilt x must be a floating number between -1 an 1. Input: x={x}'
)
bt.X = x
if y is not None:
if abs(y) > 1:
raise FEIValueError(
f'BeamTilt y must be a floating number between -1 an 1. Input: y={y}'
)
bt.Y = y
self.tom.Illumination.BeamAlignmentTilt = bt
def setImageShift1(self, x, y):
is1 = self.tom.Projection.ImageShift
if abs(x) > 1 or abs(y) > 1:
raise FEIValueError(
f'ImageShift1 x/y must be a floating number between -1 an 1. Input: x={x}, y={y}'
)
if x is not None:
is1.X = x
if y is not None:
is1.Y = y
self.tom.Projection.ImageShift = is1
def setBeamAlignShift(self, x, y):
"""Align Shift."""
bs = self.tom.Illumination.BeamAlignShift
if abs(x) > 1 or abs(y) > 1:
raise FEIValueError(
f'BeamAlignShift x/y must be a floating number between -1 an 1. Input: x={x}, y={y}'
)
if x is not None:
bs.X = x
if y is not None:
bs.Y = y
self.tom.Illumination.BeamAlignShift = bs
def setGunTilt(self, x, y):
gt = self.tecnai.Gun.Tilt
if abs(x) > 1 or abs(y) > 1:
raise FEIValueError(
f'GunTilt x/y must be a floating number between -1 an 1. Input: x={x}, y={y}'
)
if x is not None:
gt.X = x
if y is not None:
gt.Y = y
self.tecnai.Gun.Tilt = gt
def setGunShift(self, x, y):
"""x y can only be float numbers between -1 and 1."""
gs = self.tem.GUN.Shift
if abs(x) > 1 or abs(y) > 1:
raise FEIValueError(
f'GunShift x/y must be a floating number between -1 an 1. Input: x={x}, y={y}'
)
if x is not None:
gs.X = x
if y is not None:
gs.Y = y
self.tem.GUN.Shift = gs
def setStagePosition(self,
x=None,
y=None,
z=None,
a=None,
b=None,
wait=True,
speed=1):
"""x, y, z in the system are in unit of meters, angles in radians."""
pos = self.stage.Position
axis = 0
if speed > 1 or speed < 0:
raise FEIValueError(
f'setStageSpeed value must be between 0 and 1. Input: {speed}')
self.tom.Stage.Speed = speed
goniospeed = self.tom.Stage.Speed
if x is not None:
pos.X = x * 1e-6
axis += 1
if y is not None:
pos.Y = y * 1e-6
axis += 2
if z is not None:
pos.Z = z * 1e-6
axis += 4
if a is not None:
pos.A = a / 180 * pi
axis += 8
if b is not None:
pos.B = b / 180 * pi
axis += 16
if speed == 1:
self.stage.Goto(pos, axis)
else:
if x is not None:
self.stage.GotoWithSpeed(pos, 1, goniospeed)
if y is not None:
self.stage.GotoWithSpeed(pos, 2, goniospeed)
if z is not None:
self.stage.GotoWithSpeed(pos, 4, goniospeed)
if a is not None:
self.stage.GotoWithSpeed(pos, 8, goniospeed)
if b is not None:
self.stage.GotoWithSpeed(pos, 16, goniospeed)