Transform a bounding box to a different projection — bbox_transform • gdalraster

bbox_transform() is a convenience function for:

bbox_to_wkt(bbox) |>
  g_transform(srs_from, srs_to) |>
  bbox_from_wkt()

Usage

bbox_transform(bbox, srs_from, srs_to)

Arguments

bbox: Numeric vector of length four containing a bounding box (xmin, ymin, xmax, ymax) to transform.
srs_from: Character string in OGC WKT format specifying the spatial reference system for bbox.
srs_to: Character string in OGC WKT format specifying the target spatial reference system.

Value

Numeric vector of length four containing a transformed bounding box (xmin, ymin, xmax, ymax).

See also

g_transform(), bbox_from_wkt(), bbox_to_wkt()

Examples

elev_file <- system.file("extdata/storml_elev.tif", package="gdalraster")
ds <- new(GDALRaster, elev_file)
ds$bbox()
#> [1]  323476.1 5101872.0  327766.1 5105082.0
bbox_transform(ds$bbox(), ds$getProjection(), epsg_to_wkt(4326))
#> [1] -113.28289   46.04764 -113.22629   46.07760
ds$close()