DRY_RUN = False

POSITIONERS =  [dummy_x, dummy_y] if DRY_RUN else [sample_x, sample_y]
SENSORS = [current, ccd.dataMatrix]
RANGE_X = [-10.0,10.0]
RANGE_Y = [-10.0,10.0]
EXPOSURES = [0.1, 0.5, 1.0]
STEPS = [5, 5] #Integers = number of steps, Float =  stepoSize
SETTLING_TIME = 0.1
RELATIVE = True
ZIGZAG = True

START = [RANGE_X[0], RANGE_Y[0]]
STOP = [RANGE_X[1], RANGE_Y[1]]

COMPRESSION = False
ENABLED_PLOTS= [current, ccd.dataMatrix]
CUSTOM_PLOT_TYPES = {ccd.dataMatrix:"ch.psi.pshell.plot.MatrixPlotRenderer"}


if EXPOSURES:
    class exposure_index (Writable, Readable):
        def __init__(self):            
            self.pos=0.0
                      
        def read(self):
            return self.pos
    
        def write(self, value): 
            ccd.setExposure(EXPOSURES[int(value)])
            self.pos = value
            
    class exposure (Readable):            
        def read(self):
            return ccd.exposure
    
    POSITIONERS = POSITIONERS + [exposure_index()]
    SENSORS = SENSORS  + [exposure()]
    START = START + [0.0]
    STOP = STOP + [float(len(POSITIONERS)-1)]   
    STEPS = STEPS + [1.0]


    
try:
    r = ascan(POSITIONERS, SENSORS , START, STOP, STEPS, \ 
          SETTLING_TIME, RELATIVE, zigzag = ZIGZAG, \
          before_read=before_readout, after_read = after_readout, \
          compression = COMPRESSION, enabled_plots=ENABLED_PLOTS, \
          keep=False, check_positions=False, plot_types=CUSTOM_PLOT_TYPES)    
finally:
    after_scan()