Function _update_axes

xarray/plot/utils.py:786–832

Update axes with provided parameters

(
    ax: Axes,
    xincrease: bool | None,
    yincrease: bool | None,
    xscale: ScaleOptions = None,
    yscale: ScaleOptions = None,
    xticks: ArrayLike | None = None,
    yticks: ArrayLike | None = None,
    xlim: tuple[float, float] | None = None,
    ylim: tuple[float, float] | None = None,
)

def _update_axes(
    ax: Axes,
    xincrease: bool | None,
    yincrease: bool | None,
    xscale: ScaleOptions = None,
    yscale: ScaleOptions = None,
    xticks: ArrayLike | None = None,
    yticks: ArrayLike | None = None,
    xlim: tuple[float, float] | None = None,
    ylim: tuple[float, float] | None = None,
) -> None:
    """
    Update axes with provided parameters
    """
    if xincrease is None:
        pass
    elif (xincrease and ax.xaxis_inverted()) or (
        not xincrease and not ax.xaxis_inverted()
    ):
        ax.invert_xaxis()

    if yincrease is None:
        pass
    elif (yincrease and ax.yaxis_inverted()) or (
        not yincrease and not ax.yaxis_inverted()
    ):
        ax.invert_yaxis()

    # The default xscale, yscale needs to be None.
    # If we set a scale it resets the axes formatters,
    # This means that set_xscale('linear') on a datetime axis
    # will remove the date labels. So only set the scale when explicitly
    # asked to. https://github.com/matplotlib/matplotlib/issues/8740
    if xscale is not None:
        ax.set_xscale(xscale)
    if yscale is not None:
        ax.set_yscale(yscale)

    if xticks is not None:
        ax.set_xticks(xticks)
    if yticks is not None:
        ax.set_yticks(yticks)

    if xlim is not None:
        ax.set_xlim(xlim)
    if ylim is not None:
        ax.set_ylim(ylim)


def _is_monotonic(coord, axis=0):