RWmisc (version 0.1.2)

point.poly.dist: Point-Polygon Distances

Description

Calculate the maximum or minimum possible distance from a point to the edge of a given polygon.

Usage

point.poly.dist(point, poly, max = TRUE, by_element = FALSE)

Arguments

point

A simplefeatures object of class point.

poly

A simplefeatures object of class polygon or multipolygon.

max

Logical; return maximum or minimum distance? default TRUE

by_element

Logical; return total maximum or minimum, or for each input point? default FALSE

Value

Maximum or minimum distance between a point and a polygon.

Examples

# NOT RUN {
library(sf)
polys <- st_sfc(st_polygon(list(rbind(c(0,0), c(0,1), c(1,1), c(1,0), c(0,0)))),
crs = st_crs('OGC:CRS84'))
points <- st_sfc(st_multipoint(rbind(c(.25, .5), c(.75, .5), c(.5, .5))),
                 crs = st_crs('OGC:CRS84'))
point.poly.dist(points, polys)
# }