hull_it: Make all polygons in an object convex

In chrisbrunsdon/caricRture: 'Sketchy' style maps with R

Description

Replace polygons in SpatialPolygons or SpatialPolygonsDataFrame with convex hulls

Usage

hull_it(spdf)
spdf 

Arguments

spdf	a SpatialPolygons or SpatialPolygonsDataFrame object

Value

a SpatialPolygons object with convex hulls of polygons (may overlap)

Examples

"MULTIPOLYGON (((30 20, 45 40, 35 35, 25 35, 10 40, 30 20)),
   ((15 5, 40 8, 40 10, 35 8, 10 20, 5 10, 15 5)))" %>% readWKT -> p1
'lavender' %>% adjustcolor(alpha.f=0.5) %>% lav
p1 %>% plot(col=lav)
p1 %>% hull_it %>% plot(col=lav,add=TRUE)

chrisbrunsdon/caricRture documentation built on May 13, 2019, 6:52 p.m.