get_largest_polygon_list: Largest polygon in a polygon list

In jmw86069/venndir: Directional Venn diagrams

Largest polygon in a polygon list

Description

Largest polygon in a polygon list

Usage

get_largest_polygon_list(polygon_list, ...)

Arguments

polygon_list	list with "x" and "y" elements with polygon coordinates.
...	additional arguments are ignored.

Details

This function returns the largest polygon in a polygon list, intended when there are multiple polygons contained in one object.

If two polygons have identical area, the first polygon is returned.

Todo:

• Verify correct output when polygon(s) have holes.

Value

list with polygon coordinates "x" and "y"

See Also

Other venndir polygons: bbox_polygon_list(), eulerr_to_polygon_list(), get_venn_polygon_shapes(), intersect_polygon_list(), labelr_polygon_list(), minus_polygon_list(), nudge_polygon_coords(), nudge_polygon_list(), plot_polygon_list(), polygon_areas(), polygon_circles(), polygon_ellipses(), polygon_list_labelr(), polygon_list_to_xy_list(), rescale_polygon_list(), simple_ellipse(), union_polygon_list(), xy_list_to_polygon_list()

Examples

counts <- c(A=1, B=2, `A&B`=3, C=4)
x <- eulerr::euler(counts)
polygon_list <- eulerr_to_polygon_list(x)
largest_poly <- get_largest_polygon_list(polygon_list)
plot_polygon_list(polygon_list, col=colorjam::rainbowJam(3, alpha=0.5))
plot_polygon_list(largest_poly, add=TRUE, border="red", lwd=3)

jmw86069/venndir documentation built on June 15, 2024, 1:52 p.m.