[R-sig-Geo] Not perfect match between the bounding box for a EPSG when projected (st_bbox from sf)
Manuel Spínola
m@p|no|@10 @end|ng |rom gm@||@com
Thu Mar 25 21:55:34 CET 2021
Dear list members,
I am working with the epsg 5367.
The information for this epsg according to this website (
https://epsg.io/5367) is:
WGS84 bounds:
-90.45 2.15
-81.43 11.77
Projected bounds:
-218963.01 239235.14
780173.56 1302793.77
When I create a box with st_bbox from the package sf and transform the
object I don't get the same bounding box that I was expecting. Is it a
fair expectation?
b <- st_bbox(c(xmin = -90.45, xmax = -81.43, ymax = 11.77, ymin = 2.15),
crs = st_crs(4326))
b <- st_as_sfc(b)
b_5367 <- st_transform(b, crs = 5367)
b_5367
Geometry set for 1 feature
Geometry type: POLYGON
Dimension: XY
Bounding box: xmin: -218962 ymin: 237951.9 xmax: 785959.7 ymax: 1309622
Projected CRS: CR05 / CRTM05POLYGON ((-218962 239233.5, 785959.7 237951.9, ...
--
*Manuel Spínola, Ph.D.*
Instituto Internacional en Conservación y Manejo de Vida Silvestre
Universidad Nacional
Apartado 1350-3000
Heredia
COSTA RICA
mspinola using una.cr <mspinola using una.ac.cr>
mspinola10 using gmail.com
Teléfono: (506) 8706 - 4662
Personal website: Lobito de río <https://sites.google.com/site/lobitoderio/>
Institutional website: ICOMVIS <http://www.icomvis.una.ac.cr/>
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