def after_read(rec,scan):
    print rec[energy],  rec[sin]



#r = mscan(energy, sin.cache, after_read=after_read)


#Execute the scan: sample undefined number of samples until a condition is met, with auto range
scan_completed=False
def after_read(record, scan):
    global scan_completed
    print  record[sin]
    if motor.isReady():
        scan_completed=True
        scan.abort()

motor.move(0.0)
motor.moveAsync(3.0)
try:
    r = mscan(motor.readback, [motor.readback, sin.cache], after_read=after_read, range=[0.0, 3.0], domain_axis=motor.readback.name)
except ScanAbortedException as ex:
    if not scan_completed: raise
motor.moveAsync(0.0)    

print r[sin]

#print r[0][sin]
print r[0][motor.readback]