Joystick Examples and Reference

Default Joystick

An example of a default Joystick without any extra properties.

library(dash)
library(dashDaq)
library(dashHtmlComponents)

app <- Dash$new()

app$layout(htmlDiv(list(
  daqJoystick(id = 'my-joystick',
               label = 'Default',
               angle = 0),
  htmlDiv(id = 'joystick-output')
)))

app$callback(
  output(id = "joystick-output", property = "children"),
  params = list(
    input(id = "my-joystick", property = "angle"),
    input(id = "my-joystick", property = "force")
  ),

  update_output <- function(angle, force) {
    return(list(
      sprintf('Angle is %s', angle),
      htmlBr(),
      sprintf('Force is %s', force)
    ))
  }
)

app$run_server()

Label

Change the label and label orientation with label and labelPosition.

library(dashDaq)

daqJoystick(
    label = "Label",
    labelPosition = "bottom",
)

Size

Change the size of the joystick with size.

library(dashDaq)

daqJoystick(
    size = 250
)

Joystick Properties

Our recommended IDE for writing Dash apps is Dash Enterprise’s
Data Science Workspaces,
which has typeahead support for Dash Component Properties.
Find out if your company is using
Dash Enterprise.

id (character; optional):
The ID used to identify the color picker in Dash callbacks.

disabled (logical; optional):
If TRUE, color cannot be picked.

angle (numeric; optional):
Joystick angle in degrees, 0 = right, 90 = up, 180 = left, 270 = down.

force (numeric; optional):
Joystick force: distance between cursor and center in big-circle radii.

size (numeric; default 100):
Size (width) of the component in pixels.

theme (named list; default light):
Theme configuration to be set by a ThemeProvider.

label (named list; optional):
Description to be displayed alongside the control. To control styling,
pass an object with label and style properties.

label is a character | named list with keys:

  • label (character; optional)

  • style (named list; optional)

labelPosition (a value equal to: ‘top’ or ‘bottom’; default 'top'):
Where the indicator label is positioned.

className (character; optional):
Class to apply to the root component element.

style (named list; optional):
Style to apply to the root component element.