st_crop: crop an sf object to a specific rectangle

In edzer/sfr: Simple Features for R

crop an sf object to a specific rectangle

Description

crop an sf object to a specific rectangle

Usage

st_crop(x, y, ...)

## S3 method for class 'sfc'
st_crop(x, y, ..., xmin, ymin, xmax, ymax)

## S3 method for class 'sf'
st_crop(x, y, ...)

Arguments

x	object of class sf or sfc
y	numeric vector with named elements xmin, ymin, xmax and ymax, or object of class bbox, or object for which there is an st_bbox method to convert it to a bbox object
...	ignored
xmin	minimum x extent of cropping area
ymin	minimum y extent of cropping area
xmax	maximum x extent of cropping area
ymax	maximum y extent of cropping area

Details

setting arguments xmin, ymin, xmax and ymax implies that argument y gets ignored.

Examples

box = c(xmin = 0, ymin = 0, xmax = 1, ymax = 1)
pol = st_sfc(st_buffer(st_point(c(.5, .5)), .6))
pol_sf = st_sf(a=1, geom=pol)
plot(st_crop(pol, box))
plot(st_crop(pol_sf, st_bbox(box)))
# alternative:
plot(st_crop(pol, xmin = 0, ymin = 0, xmax = 1, ymax = 1))

edzer/sfr documentation built on April 23, 2024, 7:17 p.m.