switch to sf instead of sp?

[morrowcj]

Our package depends upon geosphere and we've been getting the following warning:

The legacy packages maptools, rgdal, and rgeos, underpinning the sp package,
which was just loaded, will retire in October 2023.
Please refer to R-spatial evolution reports for details, especially
https://r-spatial.org/r/2023/05/15/evolution4.html.
It may be desirable to make the sf package available;
package maintainers should consider adding sf to Suggests:.
The sp package is now running under evolution status 2
     (status 2 uses the sf package in place of rgdal)

Will geosphere update its use of sp to sf?

[PietrH]

I support the decision to switch to sf, this is also a recommendation in the rOpenSci dev guide.

[olivroy]

+1 too! sp imports sf anyway.

This would require one less step.

Currently, we have to call sf::as_Spatial() on our object to be able to use the functions.