Return bounding of a simple feature or simple feature set

Usage

# S3 method for class 'bbox'
is.na(x)

st_bbox(obj, ...)

# S3 method for class 'POINT'
st_bbox(obj, ...)

# S3 method for class 'MULTIPOINT'
st_bbox(obj, ...)

# S3 method for class 'LINESTRING'
st_bbox(obj, ...)

# S3 method for class 'POLYGON'
st_bbox(obj, ...)

# S3 method for class 'MULTILINESTRING'
st_bbox(obj, ...)

# S3 method for class 'MULTIPOLYGON'
st_bbox(obj, ...)

# S3 method for class 'GEOMETRYCOLLECTION'
st_bbox(obj, ...)

# S3 method for class 'MULTISURFACE'
st_bbox(obj, ...)

# S3 method for class 'MULTICURVE'
st_bbox(obj, ...)

# S3 method for class 'CURVEPOLYGON'
st_bbox(obj, ...)

# S3 method for class 'COMPOUNDCURVE'
st_bbox(obj, ...)

# S3 method for class 'POLYHEDRALSURFACE'
st_bbox(obj, ...)

# S3 method for class 'TIN'
st_bbox(obj, ...)

# S3 method for class 'TRIANGLE'
st_bbox(obj, ...)

# S3 method for class 'CIRCULARSTRING'
st_bbox(obj, ...)

# S3 method for class 'sfc'
st_bbox(obj, ...)

# S3 method for class 'sf'
st_bbox(obj, ...)

# S3 method for class 'Spatial'
st_bbox(obj, ...)

# S3 method for class 'Raster'
st_bbox(obj, ...)

# S3 method for class 'Extent'
st_bbox(obj, ..., crs = NA_crs_)

# S3 method for class 'numeric'
st_bbox(obj, ..., crs = NA_crs_)

NA_bbox_

FULL_bbox_

# S3 method for class 'bbox'
format(x, ...)

Format

An object of class bbox of length 4.

Arguments

x: object of class bbox
obj: object to compute the bounding box from
...: for format.bbox, passed on to format to format individual numbers
crs: object of class crs, or argument to st_crs, specifying the CRS of this bounding box.

Value

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.

Details

NA_bbox_ represents the missing value for a bbox object

Examples

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