draw_key_hextile: Hexagon key glyph for legends

In gghexsize: Make Hexagonal Heatmaps with Varying Hexagon Sizes

Hexagon key glyph for legends

Description

Each geom has an associated function that draws the key when the geom needs to be displayed in a legend. These functions are called ⁠draw_key_*()⁠, where * stands for the name of the respective key glyph. The key glyphs can be customized for individual geoms by providing a geom with the key_glyph argument (see ggplot2::layer() or examples below.)

Usage

draw_key_hextile(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.

Value

A grid grob.

See Also

ggplot2::draw_key, geom_hextile().

Examples

library(ggplot2)

d <- ggplot(diamonds, aes(carat, price, linewidth = after_stat(count))) +
  scale_linewidth(trans = "log10")
d + geom_hex(colour = "black")

# key glyphs can be specified by their name
d + geom_hex(colour = "black", key_glyph = "hextile")

# key glyphs can be specified via their drawing function
d + geom_hex(colour = "black", key_glyph = draw_key_hextile)

gghexsize documentation built on June 8, 2025, 11:49 a.m.