RangeSlider.ipynb

Kernel: Unknown Kernel

import math
import panel as pn
pn.extension()

The RangeSlider widget allows selecting a floating-point range using a slider with two handles.

Discover more on using widgets to add interactivity to your applications in the how-to guides on interactivity. Alternatively, learn how to set up callbacks and (JS-)links between parameters or how to use them as part of declarative UIs with Param.

Parameters:

For details on other options for customizing the component see the layout and styling how-to guides.

Core

• start (float): The range's lower bound

• end (float): The range's upper bound

• step (float): The interval between values

• value (tuple): Tuple of upper and lower bounds of selected range

• value_throttled (tuple): Tuple of upper and lower bounds of selected range throttled until mouseup

Display

• bar_color (color): Color of the slider bar as a hexadecimal RGB value

• direction (str): Whether the slider should go from left to right ('ltr') or right to left ('rtl')

• disabled (boolean): Whether the widget is editable

• format (str, bokeh.models.TickFormatter): Formatter to apply to the slider value

• name (str): The title of the widget

• orientation (str): Whether the slider should be displayed in a 'horizontal' or 'vertical' orientation.

• tooltips (boolean): Whether to display tooltips on the slider handle

---

range_slider = pn.widgets.RangeSlider(
    name='Range Slider', start=0, end=math.pi, value=(math.pi/4., math.pi/2.), step=0.01)

range_slider

RangeSlider.value returns a tuple of float values that can be read out and set like other widgets:

range_slider.value

A custom format string or bokeh TickFormatter may be used to format the slider values:

from bokeh.models.formatters import PrintfTickFormatter

str_format = pn.widgets.RangeSlider(name='Distance', format='0.0a', start=100000, end=1000000)

tick_format = pn.widgets.RangeSlider(name='Distance', format=PrintfTickFormatter(format='%.3f m'))

pn.Column(str_format, tick_format)

Controls

The RangeSlider widget exposes a number of options which can be changed from both Python and Javascript. Try out the effect of these parameters interactively:

pn.Row(range_slider.controls(jslink=True), range_slider)