89 lines
2.4 KiB
Python
89 lines
2.4 KiB
Python
is_panel = get_exec_pars().source != CommandSource.ui #Must be checked before callin "run"
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run("Devices/Elements")
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run("Devices/WireScanner")
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if is_panel:
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prefix = args[0]
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sel = args[1]
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start = args[2]
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end = args[3]
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cycles = args[4]
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velocity = args[5]
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bpm3 = args[6]
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else:
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prefix = "SINDI01-DWSC090" #"SARCL02-DWSC270"
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sel = WireScanner.W1X
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start = -200
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end = 200
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cycles = 5
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velocity = 200
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bpm3 = None
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#Creating WireScanner object
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if prefix not in get_wire_scans():
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raise Exception("Invalid wire scan: " + prefix)
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scanner = WireScanner(prefix, sel, start, end, cycles, velocity, True)
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#Stream channels
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bs_position = scanner.motor_bs_readback.get_name()
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bpms = get_wire_scans_bpms(prefix)
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if bpms is None:
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raise Exception("Cannot determine wire scan bpms: " + prefix)
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channels = [("w_pos", bs_position)]
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if bpm3 is not None:
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bpms.append(bpm3)
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for i in range (len(bpms)):
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channels.append (("bpm" + str(i+1) + "_x", bpms[i] + ":X1"))
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channels.append (("bpm" + str(i) + "_y", bpms[i] + ":Y1"))
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channels.append (("bpm" + str(i) + "_q", bpms[i] + ":Q1"))
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#Stream creation
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st = Stream("pulse_id", dispatcher)
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for c in channels:
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st.addScalar(c[0], c[1], 10, 0)
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st.initialize()
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st.start()
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st.waitCacheChange(10000)
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scanner.scan()
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scanner.waitState(State.Busy, 60000)
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#End of scan checking
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scan_complete=False
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def check_end_scan(record, scan):
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global scan_complete
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if scanner.isReady():
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print "Abort Scan"
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scan_complete=True
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scan.abort()
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#Metadata
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def write_metadata(path):
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try:
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set_attribute(path, "Wire Scan", prefix)
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set_attribute(path, "Selection", sel)
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set_attribute(path, "Range", scaner.scan_range)
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set_attribute(path, "Cycles", scanner.cycles )
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set_attribute(path, "Velocity", scanner.velocity )
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except:
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pass
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#Scan
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try:
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mscan (st, st.getReadables() +[scanner.curr_cycl] , -1, scanner.get_total_time() * 2.0, after_read =check_end_scan) # *2.0 to account for accelerations an dother delays
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except:
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if not scanner.isReady():
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print "Aborting Wire Scan"
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scanner.abort()
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if not scan_complete:
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raise
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finally:
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write_metadata(get_exec_pars().scanPath)
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print "Closing scanner"
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scanner.close()
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st.close()
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