Skip to contents

Register a custom pattern function

Source: R/patterns.R
register_pattern.Rd

Register a custom pattern function

Usage

register_pattern(name, fn)

Arguments

name

Character name for the pattern (used in scale_pattern_*).

fn

A function with signature fn(x, y, width, height, gp, params) that returns a grid grob. x/y/width/height are in npc units (0–1 relative to the parent viewport). gp is the base gpar() from the geom. params is a named list of extra parameters from the scale.