On 25/01/2023 18:42, Josiah Parry wrote:

I wonder if `units::set_units()` is a better fit for the job https://r-quantities.github.io/units/articles/measurement_units_in_R.html

`It could definitely tell you which number to choose when going from,`

`say, US feet to km. Coordinates in sf geometries are not stored as units`

`objects, unit info is encoded in the CRS. st_transform can do`

`transformations and conversions between different CRSs, unit conversions`

`is a special case of that.`

On Wed, Jan 25, 2023 at 12:37 PM Steve Gutreuter <sgutreu...@gmail.com> wrote:Is it safe to re-scale sf geometry coordinates from meters to kilometers using, for example: sfobj$geometry <- sfobj$geometry / 1000 It seems to work, but I understand too little about spatial data to know whether that practice is actually safe. I am working with spatial data in a continental-scale equidistant conic projection, and the units are meters. It seems that kilometers would be better suited stochastic partial differential equation modeling on a finite-element mesh, but maybe that is a moot point. Any and all advice will be much appreciated. Thanks! -- Steve Gutreuter [[alternative HTML version deleted]] _______________________________________________ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo[[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