dilate_it: Dilate (expand) polygons in an object
In chrisbrunsdon/caricRture: 'Sketchy' style maps with R

Description Usage Arguments Value Examples

Dilate the polygons in a SpatialPolygons or SpatialPolygonsDataFrame object

1 2	dilate_it(spdf,r) spdf

`spdf`	A SpatialPolygons or SpatialPolygonsDataFrame object
`r`	Radius of dilation

A SpatialPolygons object with the dilation applied

"POLYGON ((30 10, 40 40, 20 40, 10 20, 30 10))" %>% readWKT -> p1
dsg <- adjustcolor('darkseagreen',alpha.f=0.5)
p1 %>% dilate_it(3) %>% plot(col=dsg)
p1 %>% plot(col=dsg,add=TRUE)

# A sketchy version
p1 %>% dilate_it(3) %>% make_canvas %>% sketch_it(col='navyblue')