8.13.2 iterMap(self,chanList=[],phase=0,flag=0,sizeX=[],sizeY=[]):

iterMap $<$ Point(BoaMapping.Map): $<$ BoaPointing.py

	DES: reconstruct a map in (Az,El) coordinates combining bolometers
		and using varying scale to zoom on signal
        INP: (int list) chanList = channels to consider
             (int) phase = phase to plot
             (int) flag  = flag values to consider
             (list float) sizeX = limits in Az of the map
             (list float) sizeY = limits in El of the map