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 layer()
or examples below.)
draw_key_point(data, params, size) draw_key_abline(data, params, size) draw_key_rect(data, params, size) draw_key_polygon(data, params, size) draw_key_blank(data, params, size) draw_key_boxplot(data, params, size) draw_key_crossbar(data, params, size) draw_key_path(data, params, size) draw_key_vpath(data, params, size) draw_key_dotplot(data, params, size) draw_key_pointrange(data, params, size) draw_key_smooth(data, params, size) draw_key_text(data, params, size) draw_key_label(data, params, size) draw_key_vline(data, params, size) draw_key_timeseries(data, params, size)
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. |
A grid grob.