def getHandlers(self):
asource = self.config.get('analogsource', None)
aline = self.config.get('analogline', None)
aHandler = depot.getHandler(asource, depot.EXECUTOR)
if aHandler is None:
raise Exception('No control source.')
axis = AXIS_MAP[self.config.get('axis', 2)]
offset = self.config.get('offset', 0)
gain = self.config.get('gain', 1)
posMin = self.config.get('min', None)
posMax = self.config.get('max', None)
posRange = self.config.get('range', None)
haveMin, haveMax, haveRange = [
v is not None for v in [posMin, posMax, posRange]
]
if haveMin and haveMax:
pass
elif (haveMin, haveMax, haveRange) == (True, False, True):
posMax = posMin + posRange
elif (haveMin, haveMax, haveRange) == (False, True, True):
posMin = posMax - posRange
elif (haveMin, haveMax, haveRange) == (False, False, True):
# Assume range starts from zero.
posMin = 0
posMax = posRange
else:
raise Exception('No min, max or range specified for stage %s.' %
self.name)
# TODO - consider moving stepSizes creation to the handler.
stepSizes = [self.config.get('minstep', (posMax - posMin) * 1e-5)]
m = 5
while True:
next = m * stepSizes[-1]
if next > (posMax - posMin) / 10.:
break
stepSizes.append(next)
m = [2, 5][m == 2]
result = []
# Create handler without movement callbacks.
handler = stagePositioner.PositionerHandler(
"%d %s" % (axis, self.name), "%d stage motion" % axis, True, {
'getMovementTime':
lambda x, start, delta: (Decimal(0.05), Decimal(0.05)),
'cleanupAfterExperiment':
None,
'setSafety':
self.setSafety
}, axis, stepSizes, min(4, len(stepSizes)), (posMin, posMax),
(posMin, posMax))
# Connect handler to analogue source to populate movement callbacks.
handler.connectToAnalogSource(aHandler, aline, offset, gain)
result.append(handler)
return result
def getHandlers(self):
asource = self.config.get('analogsource', None)
aline = self.config.get('analogline', None)
aHandler = depot.getHandler(asource, depot.EXECUTOR)
if aHandler is None:
raise Exception('No control source.')
axis = AXIS_MAP[self.config.get('axis', 2)]
offset = self.config.get('offset', 0)
gain = self.config.get('gain', 1)
posMin = self.config.get('min', None)
posMax = self.config.get('max', None)
posRange = self.config.get('range', None)
haveMin, haveMax, haveRange = [
v is not None for v in [posMin, posMax, posRange]
]
if haveMin and haveMax:
pass
elif (haveMin, haveMax, haveRange) == (True, False, True):
posMax = posMin + posRange
elif (haveMin, haveMax, haveRange) == (False, True, True):
posMin = posMax - posRange
elif (haveMin, haveMax, haveRange) == (False, False, True):
# Assume range starts from zero.
posMin = 0
posMax = posRange
else:
raise Exception('No min, max or range specified for stage %s.' %
self.name)
result = []
# Create handler without movement callbacks.
handler = stagePositioner.PositionerHandler(
"%d %s" % (axis, self.name), "%d stage motion" % axis, True, {
'getMovementTime':
lambda x, start, delta: (Decimal(0.05), Decimal(0.05))
}, axis, (posMin, posMax), (posMin, posMax))
# Connect handler to analogue source to populate movement callbacks.
handler.connectToAnalogSource(aHandler, aline, offset, gain)
result.append(handler)
return result