fortify_voronoi: Create Data Frame from voronoi_polygons output

In ggvoronoi: Voronoi Diagrams and Heatmaps with 'ggplot2'

Create Data Frame from voronoi_polygons output

Description

Allows output of voronoi_polygon to be plotted using geom_polygon.

Usage

fortify_voronoi(vor_spdf)

Arguments

vor_spdf

Output from voronoi_polygon (SpatialPolygonsDataFrame)

Value

A data.frame containing coordinates to trace the paths of the provided voronoi diagram.

Examples

set.seed(45056)
x <- sample(1:200,100)
y <- sample(1:200,100)
points <- data.frame(x, y,
                     distance = sqrt((x-100)^2 + (y-100)^2))
circle <- data.frame(x = 100*(1+cos(seq(0, 2*pi, length.out = 2500))),
                     y = 100*(1+sin(seq(0, 2*pi, length.out = 2500))),
                     group = rep(1,2500))

vor_spdf <- voronoi_polygon(data=points,x="x",y="y",outline=circle)
vor_df <- fortify_voronoi(vor_spdf)

ggplot(vor_df) +
    geom_polygon(aes(x=x,y=y,fill=distance,group=group))

ggvoronoi documentation built on Aug. 27, 2022, 1:07 a.m.