On 07/06/2021 01:16, Manuel Spínola wrote:
Dear list members,
When using st_transform in a stars object the offset and delta parameters
become NA, is this an expected behavior?
Yes, it also says that you got a curvilinear grid as a result, which is
a grid with non-constant cell size (delta) and non-constant coordinate
of the side (offset); see
https://keen-swartz-3146c4.netlify.app/intro.html#raster-types
If you want a regular grid in the new CRS, use st_warp(), preferably
with the target grid template.
geomatrix = system.file("tif/geomatrix.tif", package = "stars")
x = read_stars(geomatrix)
new = st_crs(4326)
y = st_transform(x, new)
y
*Manuel Spínola, Ph.D.*
Instituto Internacional en Conservación y Manejo de Vida Silvestre
Universidad Nacional
Apartado 1350-3000
Heredia
COSTA RICA
mspin...@una.cr <mspin...@una.ac.cr>
mspinol...@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/>
[[alternative HTML version deleted]]
_______________________________________________
R-sig-Geo mailing list
R-sig-Geo@r-project.org
https://stat.ethz.ch/mailman/listinfo/r-sig-geo
--
Edzer Pebesma
Institute for Geoinformatics
Heisenbergstrasse 2, 48151 Muenster, Germany
Phone: +49 251 8333081
_______________________________________________
R-sig-Geo mailing list
R-sig-Geo@r-project.org
https://stat.ethz.ch/mailman/listinfo/r-sig-geo
