'Construct a BaseChart object.'

def __init__(self):

    self.data = []
    self._axes = {}
    for code in self._POSITION_CODES:
        self._axes[code] = [Axis()]
    self._legend_labels = []
    self._show_legend = False
    self.auto_color = formatters.AutoColor()
    self.auto_scale = formatters.AutoScale()
    self.auto_legend = formatters.AutoLegend
    self.formatters = [self.auto_color, self.auto_scale, self.auto_legend]
    self.display = None
