def rep_scan_1d(
self, motor="", start=0.0, end=0.0, data_points=0, dwell_time=0.0, relative=True, counters=[], repetitions=1
):
"""Perform a repeated 1D scan of motor in [start, end] of data_points
:param motor: Motor to scan
:param start: Relative scan starting position for motor1
:param end: Relative scan ending position for motor1
:param data_points: Number of data points to acquire
:param dwell_time: Seconds at each point
:param dwell_time: Seconds at each point
"""
try:
motor = AliasedPV(motor)
start = util.check_float(start)
end = util.check_float(end)
data_points = util.check_int(data_points)
dwell_time = util.check_float(dwell_time)
relative = util.check_bool(relative)
repetitions = util.check_int(repetitions)
except Exception as ex:
print("Scan argument check failed: %s" % (ex,))
return False
if relative:
scan_type = "repdscan"
else:
scan_type = "repascan"
m_name = self.core.get_aliased_name(motor)
command = (
"%(scan_type)s %(m_name)s %(start)g %(end)g %(data_points)d %(dwell_time)g %(repetitions)d" % locals()
)
pos0 = ECLIPositioner(motor, label=m_name)
start_pos = pos0.current()
pos0.array = np.linspace(start, end, data_points)
if relative:
pos0.array += start_pos
pos0.array = np.array(list(pos0.array) * repetitions)
print("Scan: %s from %g to %g (%d data points, %d repetitions)" % (motor, start, end, data_points, repetitions))
positioners = [pos0]
counters = list(counters)
counters.insert(0, pos0.get_counter())
return self.scan_run(
positioners,
dwell_time,
command=command,
counters=counters,
detectors=[],
dimensions=(data_points * repetitions,),
)
def scan_2d(
self,
motor1="",
start1=0.0,
end1=0.0,
points1=0,
motor2="",
start2=0.0,
end2=0.0,
points2=0,
dwell_time=0.0,
relative=True,
):
"""Perform a 2D scan of dimension (points1, points2):
motor1 in [start1, end1], with points1 data points (inner loop, fast)
motor2 in [start2, end2], with points2 data points (outer loop, slow)
Scan relative to the starting position (dmesh) or utilizing absolute
positions (amesh)::
for motor2 = start2 to end2, step (end2-start2) / points2:
for motor1 = start1 to end1, step (end1-start1) / points1:
wait for [time] secs
take data point
:param motor1: Motor to scan
:param start1: Relative scan starting position for motor1
:param end1: Relative scan ending position for motor1
:param points1: Number of data points for motor1
:param motor2: Motor 2 to scan
:param start2: Relative scan starting position for motor2
:param points2: Number of data points for motor2
:param end2: Relative scan ending position for motor2
:param data_points: Number of data points to acquire
:param dwell_time: Seconds at each point
:returns: the scan instance
"""
# TODO merge this into scan_nd
try:
motor1 = AliasedPV(motor1)
start1 = util.check_float(start1)
end1 = util.check_float(end1)
points1 = util.check_int(points1)
motor2 = AliasedPV(motor2)
start2 = util.check_float(start2)
end2 = util.check_float(end2)
points2 = util.check_int(points2)
dwell_time = util.check_float(dwell_time)
relative = util.check_bool(relative)
except Exception as ex:
print("Scan argument check failed: %s" % (ex,))
return False
if relative:
scan_type = "dmesh"
else:
scan_type = "amesh"
m1_name = self.core.get_aliased_name(motor1)
m2_name = self.core.get_aliased_name(motor2)
command = (
"%(scan_type)s %(m1_name)s %(start1)g %(end1)g %(points1)d %(m2_name)s %(start2)g %(end2)g %(points2)d %(dwell_time)g"
% locals()
)
# Positioner 1 - 'fast' inner loop
pos1 = ECLIPositioner(motor1, label=m1_name)
pos1.array = np.array(points2 * [np.linspace(start1, end1, points1)]).flatten()
if relative:
pos1.array += pos1.current()
# Positioner 2 - 'slow' outer loop
pos2 = ECLIPositioner(motor2, label=m2_name)
pos2.array = np.array([[i] * points1 for i in np.linspace(start2, end2, points2)]).flatten()
if relative:
pos2.array += pos2.current()
dimensions = (points1, points2)
print("Inner: %s from %g to %g (%d data points)" % (motor1, start1, end1, points1))
print("Outer: %s from %g to %g (%d data points)" % (motor2, start2, end2, points2))
print("Dimensions: %s (total points=%d)" % (dimensions, points1 * points2))
positioners = (pos1, pos2)
counters = [pos.get_counter() for pos in positioners]
return self.scan_run(
positioners, dwell_time, command=command, counters=counters, detectors=[], dimensions=dimensions
)
