'Collect params related to our various axes (x, y, right-hand).'

def _GetAxisParams(self, chart):

    axis_types = []
    axis_ranges = []
    axis_labels = []
    axis_label_positions = []
    axis_label_gridlines = []
    mark_length = max(self._width, self._height)
    for (i, axis_pair) in enumerate((a for a in chart._GetAxes() if a[1].labels)):
        (axis_type_code, axis) = axis_pair
        axis_types.append(axis_type_code)
        if ((axis.min is not None) or (axis.max is not None)):
            assert (axis.min is not None)
            assert (axis.max is not None)
            axis_ranges.append(('%s,%s,%s' % (i, axis.min, axis.max)))
        (labels, positions) = self._GetAxisLabelsAndPositions(axis, chart)
        if labels:
            axis_labels.append(('%s:' % i))
            axis_labels.extend(labels)
        if positions:
            positions = ([i] + list(positions))
            axis_label_positions.append(','.join((str(x) for x in positions)))
        if axis.label_gridlines:
            axis_label_gridlines.append(('%d,%d' % (i, (- mark_length))))
    return util.JoinLists(axis_type=axis_types, axis_range=axis_ranges, axis_label=axis_labels, axis_position=axis_label_positions, axis_tick_marks=axis_label_gridlines)
