Convert a bounding box to a Well Known Text polygon, and a WKT to a bounding box
Convert a bounding box to a Well Known Text polygon, and a WKT to a bounding box
gbif_bbox2wkt(minx = NA, miny = NA, maxx = NA, maxy = NA, bbox = NULL) gbif_wkt2bbox(wkt = NULL)
minx |
(numeric) Minimum x value, or the most western longitude |
miny |
(numeric) Minimum y value, or the most southern latitude |
maxx |
(numeric) Maximum x value, or the most eastern longitude |
maxy |
(numeric) Maximum y value, or the most northern latitude |
bbox |
(numeric) A vector of length 4, with the elements: minx, miny, maxx, maxy |
wkt |
(character) A Well Known Text object. |
gbif_bbox2wkt returns an object of class charactere, a Well Known Text string of the form 'POLYGON((minx miny, maxx miny, maxx maxy, minx maxy, minx miny))'.
gbif_wkt2bbox returns a numeric vector of length 4, like c(minx, miny, maxx, maxy)
## Not run: # Convert a bounding box to a WKT ## Pass in a vector of length 4 with all values gbif_bbox2wkt(bbox=c(-125.0,38.4,-121.8,40.9)) ## Or pass in each value separately gbif_bbox2wkt(minx=-125.0, miny=38.4, maxx=-121.8, maxy=40.9) # Convert a WKT object to a bounding box wkt <- "POLYGON((-125 38.4,-125 40.9,-121.8 40.9,-121.8 38.4,-125 38.4))" gbif_wkt2bbox(wkt) ## End(Not run)
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