draw-key: Key drawing functions for bivariate intervals.

In gggda: A 'ggplot2' Extension for Geometric Data Analysis

Key drawing functions for bivariate intervals.

Description

These key drawing functions supplement those built into ggplot2 for legend glyphs suitable to bivariate line-ranges and point-ranges.

Usage

draw_key_line(data, params, size)

draw_key_crosslines(data, params, size)

draw_key_crosspoint(data, params, size)

Arguments

data	A single row data frame containing the scaled aesthetics to display in this key
params	A list of additional parameters supplied to the geom.
size	Width and height of key in mm.

Details

draw_key_line() is a horizontal counterpart to ggplot2::draw_key_vline(). draw_key_crosslines() superimposes these two keys, and draw_key_crosspoint() additionally superimposes an oversized ggplot2::draw_key_point().

Value

A grid grob.

See Also

ggplot2::draw_key for key glyphs installed with ggplot2.

gggda documentation built on July 18, 2026, 5:07 p.m.