Return bounding of a simple feature or simple feature set

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_

# 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