bbox_to_wkt {gdalraster} | R Documentation |
Convert a bounding box to POLYGON in OGC WKT format
Description
bbox_to_wkt()
returns a WKT POLYGON string for the given bounding box.
Requires GDAL built with the GEOS library.
Usage
bbox_to_wkt(bbox, extend_x = 0, extend_y = 0)
Arguments
bbox |
Numeric vector of length four containing xmin, ymin, xmax, ymax. |
extend_x |
Numeric scalar. Distance in units of |
extend_y |
Numeric scalar. Distance in units of |
Value
Character string for an OGC WKT polygon.
NA
is returned if GDAL was built without the GEOS library.
See Also
Examples
elev_file <- system.file("extdata/storml_elev.tif", package="gdalraster")
ds <- new(GDALRaster, elev_file, read_only=TRUE)
bbox_to_wkt(ds$bbox())
ds$close()
[Package gdalraster version 1.11.1 Index]