def FE_scan_prepare():

    FE_centerX_ini = BML_FE_centerX.read()
    FE_centerY_ini = BML_FE_centerY.read()
    BML_FE_centerX.setSpeed(1.5)
    BML_FE_centerY.setSpeed(1.5)

    FE_centerX = 0.0
    FE_centerY = 0.0
    
    FE_sizeX = 0.1
    FE_sizeY = 0.1

    x_range = 4.0
    y_range = 4.0
    
    x_steps = 0.2
    y_steps = 0.2
    
    xmin = FE_centerX - x_range/2
    xmax = FE_centerX + x_range/2
    
    ymin = FE_centerY - y_range/2
    ymax = FE_centerY + y_range/2

    xsteps = x_steps
    ysteps = y_steps

    BML_FE_centerX.update()
    BML_FE_centerY.update()
    
    #started = time.strftime("%H:%M:%S", time.localtime())


    BML_FE_centerX.move(xmin)
    BML_FE_centerY.move(ymin)

def FE_scan_move():

    BML_FE_centerY.setSpeed(0.05)
    BML_FE_centerY.moveAsync(2.0)

    for i in range(0,10):
        BML_FE_centerX.move(2.0)
        BML_FE_centerX.move(-2.0)
        print(i)

def time_scan_2DFE(samples=850, interval=0.1):    
    try:
        sensors = [SR_current, "ca://X11MA-FE-SL1:TRXR-VelAct", 'ca://X11MA-FE-SL1:TRXW-VelAct', 'ca://X11MA-FE-SL1:TRXR-PosAct', 'ca://X11MA-FE-SL1:TRXW-PosAct', 'ca://X11MA-FE-SL1:TRYB-VelAct', 'ca://X11MA-FE-SL1:TRYT-VelAct', 'ca://X11MA-FE-SL1:TRYB-PosAct', 'ca://X11MA-FE-SL1:TRYT-PosAct']
                       #85 * PASSES
        tscan(sensors, samples, interval, auto_range=(samples<0))
    except ScanAbortedException as ex:
        print "Stop Scan"

def run_parallel_scan(fixed=True):
    FE_scan_prepare()
    if fixed:
        parallelize(FE_scan_move, time_scan_2DFE)
    else:
        task = fork((time_scan_2DFE,(-1,)))
        try:
            FE_scan_move()        
        except:
            print sys.exc_info()
        finally:
            abort()

run_parallel_scan()