Extract Geom Parameters from ggproto Object

Dynamically extracts parameter information from a ggplot2 geom. This handles the "scattered definitions" problem by reading from source.

Usage

extract_geom_params(geom_name)

Arguments

geom_name

Name of the geom (e.g., "point", "line").

Value

List with default_aes, required_aes, optional_aes, extra_params.