class IgorThread(QtCore.QThread):
_newRequest = QtCore.Signal(object)
def __init__(self, useZMQ=False):
QtCore.QThread.__init__(self)
self.moveToThread(self)
if useZMQ:
self.igor = ZMQIgorBridge()
else:
self.igor = IgorBridge()
self._newRequest.connect(self._processRequest)
self.start()
atexit.register(self.quit)
def __call__(self, *args, **kwds):
return self._sendRequest('__call__', args, kwds)
def getWave(self, *args, **kwds):
return self._sendRequest('getWave', args, kwds)
def getVariable(self, *args, **kwds):
return self._sendRequest('getVariable', args, kwds)
def _sendRequest(self, req, args, kwds):
if isinstance(self.igor, ZMQIgorBridge):
return getattr(self.igor, req)(*args)
else:
fut = concurrent.futures.Future()
self._newRequest.emit((fut, req, args, kwds))
return fut
def _processRequest(self, req):
fut, method, args, kwds = req
try:
result = getattr(self.igor, method)(*args, **kwds)
fut.set_result(result)
except Exception as exc:
fut.set_exception(exc)
def run(self):
pythoncom.CoInitialize()
QtCore.QThread.run(self)
class ScanProgramCtrlGroup(pTypes.GroupParameter):
"""
Parameter tree used for generating ScanProgram
"""
sigAddNewRequested = QtCore.Signal(object, object)
def __init__(self):
opts = {
'name': 'Program Controls',
'type': 'group',
'addText': "Add Control..",
'addList': COMPONENTS.keys(),
'autoIncrementName': True,
}
pTypes.GroupParameter.__init__(self, **opts)
def addNew(self, typ):
self.sigAddNewRequested.emit(self, typ)
class LineScanControl(QtCore.QObject):
sigStateChanged = QtCore.Signal(object)
def __init__(self, component):
QtCore.QObject.__init__(self)
self.name = component.name
### These need to be initialized before the ROI is initialized because they are included in stateCopy(), which is called by ROI initialization.
self.params = pTypes.SimpleParameter(name=self.name,
type='bool',
value=True,
removable=True,
renamable=True,
children=[
dict(name='Length',
type='float',
value=1e-5,
suffix='m',
siPrefix=True,
bounds=[1e-6, None],
step=1e-6),
dict(name='startTime',
type='float',
value=5e-2,
suffix='s',
siPrefix=True,
bounds=[0., None],
step=1e-2),
dict(name='sweepSpeed',
type='float',
value=1e-6,
suffix='m/ms',
siPrefix=True,
bounds=[1e-8, None],
minStep=5e-7,
step=0.5,
dec=True),
dict(name='interSweepSpeed',
type='float',
value=5e-6,
suffix='m/ms',
siPrefix=True,
bounds=[1e-8, None],
minStep=5e-7,
step=0.5,
dec=True),
dict(name='nScans',
type='int',
value=100,
bounds=[1, None]),
dict(name='endTime',
type='float',
value=5.5e-1,
suffix='s',
siPrefix=True,
bounds=[0., None],
step=1e-2,
readonly=True),
])
self.params.component = weakref.ref(component)
self.roi = MultiLineScanROI(
[[0.0, 0.0], [self.params['Length'], self.params['Length']]])
self.roi.sigRegionChangeFinished.connect(self.updateFromROI)
self.params.sigTreeStateChanged.connect(self.update)
def getGraphicsItems(self):
return [self.roi]
def isActive(self):
return self.params.value()
def setVisible(self, vis):
if vis:
self.roi.setOpacity(
1.0
) ## have to hide this way since we still want the children to be visible
for h in self.roi.handles:
h['item'].setOpacity(1.0)
else:
self.roi.setOpacity(0.0)
for h in self.roi.handles:
h['item'].setOpacity(0.0)
def parameters(self):
return self.params
def update(self):
pts = self.roi.listPoints()
scanTime = 0.
interScanFlag = False
for k in xrange(len(pts)): # loop through the list of points
k2 = k + 1
if k2 > len(pts) - 1:
k2 = 0
dist = (pts[k] - pts[k2]).length()
if interScanFlag is False:
scanTime += dist / (self.params['sweepSpeed'] * 1000.)
else:
scanTime += dist / (self.params['interSweepSpeed'] * 1000.)
interScanFlag = not interScanFlag
self.params['endTime'] = self.params['startTime'] + (
self.params['nScans'] * scanTime)
self.setVisible(self.params.value())
def updateFromROI(self):
self.update()
def generateTask(self):
points = self.roi.listPoints() # in local coordinates local to roi.
points = [self.roi.mapToView(p) for p in points
] # convert to view points (as needed for scanner)
points = [(p.x(), p.y()) for p in points
] ## make sure we can write this data to HDF5 eventually..
return {
'type': self.name,
'active': self.isActive(),
'points': points,
'startTime': self.params['startTime'],
'sweepSpeed': self.params['sweepSpeed'],
'endTime': self.params['endTime'],
'interSweepSpeed': self.params['interSweepSpeed'],
'nScans': self.params['nScans']
}
class RectScanControl(QtCore.QObject):
sigStateChanged = QtCore.Signal(object)
def __init__(self, component):
QtCore.QObject.__init__(self)
### These need to be initialized before the ROI is initialized because they are included in stateCopy(), which is called by ROI initialization.
self.blockUpdate = False
self.component = weakref.ref(component)
self.params = RectScanParameter()
self.params.component = self.component
self.roi = RectScanROI(
size=[self.params['width'], self.params['height']], pos=[0.0, 0.0])
self.params.sigTreeStateChanged.connect(self.paramsChanged)
self.roi.sigRegionChangeFinished.connect(self.roiChanged)
self.paramsChanged()
def getGraphicsItems(self):
return [self.roi]
def isActive(self):
return self.params.value()
# def setVisible(self, vis):
# if vis:
# self.roi.setOpacity(1.0) ## have to hide this way since we still want the children to be visible
# for h in self.roi.handles:
# h['item'].setOpacity(1.0)
# else:
# self.roi.setOpacity(0.0)
# for h in self.roi.handles:
# h['item'].setOpacity(0.0)
def updateVisibility(self):
v = self.params.value() and self.component().program().isVisible()
self.roi.setVisible(v)
def parameters(self):
return self.params
def paramsChanged(self, param=None, changes=None):
self.update()
def update(self):
try:
self.params.sigTreeStateChanged.disconnect(self.paramsChanged)
reconnect = True
except TypeError:
reconnect = False
try:
self.params.system.sampleRate = self.component().program(
).sampleRate
self.params.system.downsample = self.component().program(
).downsample
self.params.updateSystem()
try:
oswidth = np.linalg.norm(self.params.system.osVector)
self.roi.setOverScan(oswidth)
except RuntimeError:
self.roi.setOverScan(0)
self.updateVisibility()
finally:
if reconnect:
self.params.sigTreeStateChanged.connect(self.paramsChanged)
def roiChanged(self):
""" read the ROI rectangle width and height and repost
in the parameter tree """
state = self.roi.getState()
w, h = state['size']
# Remember: ROI origin is in bottom-left because camera module has +y pointing upward.
self.params.system.p0 = pg.Point(self.roi.mapToView(pg.Point(
0, h))) # top-left
self.params.system.p1 = pg.Point(self.roi.mapToView(pg.Point(
w, h))) # rop-right
self.params.system.p2 = pg.Point(self.roi.mapToView(pg.Point(
0, 0))) # bottom-left
self.params.updateSystem()
def saveState(self):
task = {
'name': self.params.name(),
'active': self.isActive(),
'roi': self.roi.saveState(),
'scanInfo': self.params.saveState(),
}
return task
def restoreState(self, state):
state = state.copy()
try:
self.params.sigTreeStateChanged.disconnect(self.paramsChanged)
self.params.setName(state['name'])
self.params.setValue(state['active'])
self.params.restoreState(state['scanInfo'])
finally:
self.params.sigTreeStateChanged.connect(self.paramsChanged)
self.roi.setState(state['roi'])