Return bounding of a simple feature or simple feature set
Return bounding of a simple feature or simple feature set
## 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, ...)
An object of class bbox
of length 4.
NA_bbox_
represents the missing value for a bbox
object
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.
a = st_sf(a = 1:2, geom = st_sfc(st_point(0:1), st_point(1:2)), crs = 4326) st_bbox(a) st_as_sfc(st_bbox(a)) st_bbox(c(xmin = 16.1, xmax = 16.6, ymax = 48.6, ymin = 47.9), crs = st_crs(4326))
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