interact: Add interactive behaviors to a glyph spec

In glyph: A Grammar of Interactive Graphics

Add interactive behaviors to a glyph spec

Description

Add interactive behaviors to a glyph spec

Usage

interact(
  spec,
  tooltip = FALSE,
  zoom = FALSE,
  brush = FALSE,
  hover = NULL,
  click = NULL,
  crossfilter = FALSE,
  nearest = FALSE
)

Arguments

spec	A glyph_spec
tooltip	Show values on hover. TRUE for auto-generated, or a glue-style template string like "{x}: {y} ({color})".
zoom	Enable scroll-to-zoom and pan. The scroll wheel, a trackpad pinch, a two-finger pinch and a double-click/double-tap always zoom; dragging pans (see brush for what happens when both are enabled).
brush	Enable rectangular brush selection. When zoom is also enabled, dragging brushes by default and a small toggle next to the reset-zoom control switches dragging between selecting and panning, so one drag never does both at once.
hover	Highlight mark on hover ("enlarge", "brighten", "outline", or NULL)
click	Action on click: "select", "filter", "url", or a callback name
crossfilter	Link this plot's selections to other plots in a layout
nearest	Snap selection to nearest point (useful for line charts)

Value

Modified glyph_spec

Examples

glyph(mtcars, x = wt, y = mpg) |>
  mark_point(color = cyl) |>
  interact(
    tooltip = "{cyl} cylinders\n{mpg} mpg at {wt} tons",
    zoom = TRUE,
    hover = "enlarge",
    brush = TRUE,
    crossfilter = TRUE
  )

glyph documentation built on Oct. 21, 2026, 5:12 p.m.