Validates sf geometry, repairs invalid features, unifies
geometry types, and optionally reprojects. Handles GEOMETRYCOLLECTION
artifacts from st_make_valid() by extracting the dominant
geometry type.
Usage
check_valid(x, ...)
# S3 method for class 'sf'
check_valid(x, out_prj = sf::st_crs(x), ...)
# S3 method for class 'sfc'
check_valid(x, out_prj = sf::st_crs(x), ...)
Arguments
- x
sf data.frame, sfc geometry, or NULL.
- ...
additional arguments passed to methods.
- out_prj
crs. Target CRS for the output, passed to
st_transform. Defaults to the CRS of x.
Value
Same class as input: sf data.frame, sfc, or NULL.
Examples
library(sf)
#> Linking to GEOS 3.12.1, GDAL 3.8.4, PROJ 9.4.0; sf_use_s2() is TRUE
p1 <- st_polygon(list(
rbind(c(0, 0), c(10, 0), c(10, 10), c(0, 10), c(0, 0)),
rbind(c(2, 2), c(2, 8), c(8, 8), c(8, 2), c(2, 2))
))
x <- st_sf(geometry = st_sfc(p1, crs = 5070))
result <- check_valid(x)
