Return bounding of a simple feature or simple feature set
# S3 method for bbox
is.na(x)
st_bbox(obj, ...)
# S3 method for POINT
st_bbox(obj, ...)
# S3 method for MULTIPOINT
st_bbox(obj, ...)
# S3 method for LINESTRING
st_bbox(obj, ...)
# S3 method for POLYGON
st_bbox(obj, ...)
# S3 method for MULTILINESTRING
st_bbox(obj, ...)
# S3 method for MULTIPOLYGON
st_bbox(obj, ...)
# S3 method for GEOMETRYCOLLECTION
st_bbox(obj, ...)
# S3 method for MULTISURFACE
st_bbox(obj, ...)
# S3 method for MULTICURVE
st_bbox(obj, ...)
# S3 method for CURVEPOLYGON
st_bbox(obj, ...)
# S3 method for COMPOUNDCURVE
st_bbox(obj, ...)
# S3 method for POLYHEDRALSURFACE
st_bbox(obj, ...)
# S3 method for TIN
st_bbox(obj, ...)
# S3 method for TRIANGLE
st_bbox(obj, ...)
# S3 method for CIRCULARSTRING
st_bbox(obj, ...)
# S3 method for sfc
st_bbox(obj, ...)
# S3 method for sf
st_bbox(obj, ...)
# S3 method for Spatial
st_bbox(obj, ...)
# S3 method for Raster
st_bbox(obj, ...)
# S3 method for Extent
st_bbox(obj, ..., crs = NA_crs_)
# S3 method for numeric
st_bbox(obj, ..., crs = NA_crs_)
NA_bbox_
# S3 method for bbox
format(x, ...)
An object of class bbox
of length 4.
a numeric vector of length four, with xmin
, ymin
, xmax
and ymax
values; if obj
is of class sf
, sfc
, Spatial
or Raster
, the object
returned has a class bbox
, an attribute crs
and a method to print the
bbox and an st_crs
method to retrieve the coordinate reference system
corresponding to obj
(and hence the bounding box). st_as_sfc has a
methods for bbox
objects to generate a polygon around the four bounding box points.
NA_bbox_
represents the missing value for a bbox
object
a = st_sf(a = 1:2, geom = st_sfc(st_point(0:1), st_point(1:2)), crs = 4326)
st_bbox(a)
#> xmin ymin xmax ymax
#> 0 1 1 2
st_as_sfc(st_bbox(a))
#> Geometry set for 1 feature
#> Geometry type: POLYGON
#> Dimension: XY
#> Bounding box: xmin: 0 ymin: 1 xmax: 1 ymax: 2
#> Geodetic CRS: WGS 84
#> POLYGON ((0 1, 1 1, 1 2, 0 2, 0 1))
st_bbox(c(xmin = 16.1, xmax = 16.6, ymax = 48.6, ymin = 47.9), crs = st_crs(4326))
#> xmin ymin xmax ymax
#> 16.1 47.9 16.6 48.6