"""
parallel photon energy and manipulator scan
"""
import math
global VECTOR, SENSORS

MODE = "swept"
LATENCY = 0.0
SENSORS = [Counts, Scienta.dataMatrix, SampleCurrent, RefCurrent, MachineCurrent]

Scienta.setAcquisitionMode(ch.psi.pshell.epics.Scienta.AcquisitionMode.Swept)
writables = (Eph, Scienta.lowEnergy, Scienta.highEnergy)

adjust_sensors()
set_adc_averaging()
set_preference(Preference.PLOT_TYPES, {'Scienta spectrum':1})

n = 41
step=-0.5

try:
    eph = [172.0 + i * step for i in range(n)]
    elo = [132.5 + i * step for i in range(n)]
    ehi = [151.5 + i * step for i in range(n)]
    VECTOR = [[eph[i], elo[i], ehi[i]] for i in range(len(eph))]
    vscan(writables, SENSORS, VECTOR, True, LATENCY, False, before_read=before_readout, after_read = after_readout)
finally:
    after_scan()