Add a rule (reference line) mark — mark_rule • glyph

Add a rule (reference line) mark

Usage

mark_rule(
  spec,
  ...,
  data = NULL,
  style = list(),
  x_intercept = NULL,
  y_intercept = NULL
)

Arguments

spec: A glyph_spec
...: Aesthetic mappings (x, y, color, size, shape, alpha, tooltip)
data: Optional per-mark data override
style: Named list of fixed visual properties
x_intercept: Fixed x position for vertical rule
y_intercept: Fixed y position for horizontal rule

Value

Modified glyph_spec object with the rule mark added