def start(self):
"""Start video capture."""
def validate(node, value):
node.write_once = node.no_write_shot = False
try:
node.record = node.record.setValidation(value)
finally:
node.write_once = node.no_write_shot = True
def store_temp(node, new):
if isinstance(new, (float, )):
node.record = MDSplus.Float64([new])
elif isinstance(new, (int, )):
node.record = MDSplus.Uint32([new])
try:
validate(self.frame_rate,
MDSplus.Float32(self.cygnet4k.frame_rate))
validate(self.exposure,
MDSplus.Float32(self.cygnet4k.exposure))
validate(self.trig_mode,
MDSplus.Uint8(self.cygnet4k.trig_mode))
validate(self.binning, MDSplus.Int8(self.cygnet4k.binning))
validate(self.roi_rect, MDSplus.Int16(self.cygnet4k.roi_rect))
aoi = self._roi_rect
cmos, pcb = self.cygnet4k.start_capture_stream(
self._num_frames, aoi, self._stream, self.copy())
store_temp(self.temp_cmos, cmos)
store_temp(self.temp_pcb, pcb)
except CygnetExcConnect:
raise MDSplus.DevOFFLINE
except CygnetExcValue:
raise MDSplus.DevINV_SETUP
except CygnetExcComm:
raise MDSplus.DevIO_STUCK
def decompile(self):
self.assertEqual(str(m.Uint8(123)), '123BU')
self.assertEqual(str(m.Uint16(123)), '123WU')
self.assertEqual(str(m.Uint32(123)), '123LU')
self.assertEqual(str(m.Uint64(123)), '123QU')
self.assertEqual(str(m.Int8(123)), '123B')
self.assertEqual(str(m.Int16(123)), '123W')
self.assertEqual(str(m.Int32(123)), '123')
self.assertEqual(str(m.Int64(123)), '123Q')
self.assertEqual(
str(m.Signal(m.ZERO(100000, 0).evaluate(), None, 0)),
"Build_Signal(Set_Range(100000,0 /*** etc. ***/), *, 0)")
