Class Slider

lib/matplotlib/widgets.py:382–649

A slider representing a floating point range. Create a slider from *valmin* to *valmax* in Axes *ax*. For the slider to remain responsive you must maintain a reference to it. Call :meth:`on_changed` to connect to the slider event. Attributes ---------- val : float

class Slider(SliderBase):
    """
    A slider representing a floating point range.

    Create a slider from *valmin* to *valmax* in Axes *ax*. For the slider to
    remain responsive you must maintain a reference to it. Call
    :meth:`on_changed` to connect to the slider event.

    Attributes
    ----------
    val : float
        Slider value.
    """

    def __init__(self, ax, label, valmin, valmax, *, valinit=0.5, valfmt=None,
                 closedmin=True, closedmax=True, slidermin=None,
                 slidermax=None, dragging=True, valstep=None,
                 orientation='horizontal', initcolor='r',
                 track_color='lightgrey', handle_style=None, **kwargs):
        """
        Parameters
        ----------
        ax : Axes
            The Axes to put the slider in.

        label : str
            Slider label.

        valmin : float
            The minimum value of the slider.

        valmax : float
            The maximum value of the slider.

        valinit : float, default: 0.5
            The slider initial position.

        valfmt : str, default: None
            The way to format the slider value. If a string, it must be in %-format.
            If a callable, it must have the signature ``valfmt(val: float) -> str``.
            If None, a `.ScalarFormatter` is used.

        closedmin : bool, default: True
            Whether the slider interval is closed on the bottom.

        closedmax : bool, default: True
            Whether the slider interval is closed on the top.

        slidermin : Slider, default: None
            Do not allow the current slider to have a value less than
            the value of the Slider *slidermin*.

        slidermax : Slider, default: None
            Do not allow the current slider to have a value greater than
            the value of the Slider *slidermax*.

        dragging : bool, default: True
            If True the slider can be dragged by the mouse.