FloatSlider#

Download this notebook from GitHub (right-click to download).

import panel as pn
import panel_material_ui as pmui

pn.extension()

The FloatSlider widget allows selecting selecting a numeric floating-point value within a set bounds using a slider.


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 customization guides.




Core#


    

  • disabled (boolean): Whether the widget is editable
    • 

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

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

  • step (float): The interval between values
    • 

  • value (float): The selected value as a float type
    • 

  • value_throttled (float): The selected value as a float type 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’).
    • 

  • format (string): The datetime’s format
    • 

  • label (str): The title of the widget.
    • 

  • marks (boolean | list[dict]):  Marks indicate predetermined values to which the user can move the slider. If True the options are shown as marks. If a list, it should contain dicts with ‘value’ and an optional ‘label’ keys.
    • 

  • orientation (Literal["horizonta", "vertical"]): Whether the slider should be displayed in a ‘horizontal’ or ‘vertical’ orientation.
    • 

  • show_value (boolean): Whether to show the widget value as a label or not.
    • 

  • tooltips (boolean | Literal["auto"]): Whether to display tooltips on the slider handle.
    • 

  • track (Literal["normal", "inverted"]): Whether to display ‘normal’ or ‘inverted’.
    • 







Styling#


    

  • sx (dict): Component level styling API.
    • 

  • theme_config (dict): Theming API.
    • 







Aliases#


For compatibility with Panel certain parameters are allowed as aliases:


    

  • name: Alias for label
    • 





float_slider = pmui.FloatSlider(label='Float Slider', start=0, end=3.141, step=0.01, value=1.57)

float_slider







            
            
The FloatSlider value is returned as a float and can be accessed and set like any other widget:


float_slider.value





1.57








Format#


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


from bokeh.models.formatters import PrintfTickFormatter

str_format = pmui.FloatSlider(label='Distance', format='1[.]00')

tick_format = pmui.FloatSlider(label='Distance', format=PrintfTickFormatter(format='%.3f m'))

pmui.Column(str_format, tick_format)







            
            




Label#


You may remove the label/ name by not setting it.


pmui.FloatSlider()







            
            




Show Value#


You may remove the value label by setting show_value=False.


pmui.FloatSlider(show_value=False)







            
            




Disabled#


The widget can be disabled with disabled=True.


pmui.FloatSlider(label='Float Slider (disabled)', disabled=True)







            
            




Color#


You can specify a color.


pmui.FlexBox(*(
    pmui.FloatSlider(label=f'Float Slider ({color})', color=color)
    for color in pmui.FloatSlider.param.color.objects
))







            
            




Sizes#


For smaller slider, use the parameter size="small".


pmui.Row(
    pmui.FloatSlider(label='Length Slider', size="small"),
    pmui.FloatSlider(label='Length Slider', size="medium"),
)







            
            




Custom Marks#


You can have custom marks by providing a rich list to the marks parameter. Note that unlike continuous sliders the value of the marks should be the integer index of the option.


marks = [
  {
    "value": 0,
    "label": '0°C',
  },
  {
    "value": 30,
    "label": '30°C',
  },
  {
    "value": 60,
    "label": '60°C',
  },
  {
    "value": 100,
    "label": '100°C',
  },
]

pmui.FloatSlider(marks=marks)







            
            




Tooltip always visible#


You can force the thumb label to be always visible with tooltips=True.


pmui.FloatSlider(label='Length', tooltips=True, value=42)







            
            




Tracks#


The track can be inverted or removed with track="inverted" and track=False respectively:


pmui.Row(
    pmui.FloatSlider(label='Length Slider', value=42, track=False),
    pmui.FloatSlider(label='Length Slider', value=42, track="inverted")
)







            
            




Vertical Sliders#


The orientation of a slider may be “vertical”:


pmui.FloatSlider(label='Length Slider', value=42, orientation="vertical")







            
            




Controls#


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


pmui.Row(float_slider.api(jslink=True), float_slider)







            
            




References#


Discover more on using widgets to add interactivity to your applications in the how-to guides on interactivity.


Learn how to set up callbacks and (JS-)links between parameters or how to use them as part of declarative UIs with Param.


See also the Material UI FloatSlider Reference and API documentation for inspiration.




Download this notebook from GitHub (right-click to download).