Draw a circle sector given circle center, one arc end point and the angle of the arc.
    
    Parameters:
        center -- center of circle
        point -- arc end point
        beta -- angle of arc (degrees)
        fullSector -- connect arc ends with center

def drawSector(page, center, point, beta, color=None, fill=None,
              dashes=None, fullSector=True, morph=None,
              width=1, closePath=False, roundCap=False, overlay=True):
    """ Draw a circle sector given circle center, one arc end point and the angle of the arc.
    
    Parameters:
        center -- center of circle
        point -- arc end point
        beta -- angle of arc (degrees)
        fullSector -- connect arc ends with center
    """
    img = page.newShape()
    Q = img.drawSector(Point(center), Point(point), beta, fullSector=fullSector)
    img.finish(color=color, fill=fill, dashes=dashes, width=width,
               roundCap=roundCap, morph=morph, closePath=closePath)
    img.commit(overlay)
    
    return Q