sf

My question combines two separate issues posted on before on Stackoverflow: i. Adding multiple legends to ggplot and ii. Add line legend to geom_sf . I would like to add multiple legends to ggplot2 (as in the first post), but am using sf . This complicates filling up the aesthetic space. The answer suggested in i. above does not work well with multiple types of geometries -- we cannot assign points and lines to a single class and then use factors. In my case, I have several line and point shapefiles, and simply want to add a separate legend entry for each shapefile added. There seems to be no

I am working on a spatial problem using the sf package in conjunction with dplyr and purrr . I would prefer to perform spatial operations inside a mutate call, like so: simple_feature %>% mutate(geometry_area = map_dbl(geometry, ~ as.double(st_area(.x)))) I like that this approach allows me to run a series of spatial operations using %>% and mutate . I dislike that this approach seems to significantly increase the run-time of the sf functions (sometimes prohibitively) and I would appreciate hearing suggestions about how to overcome this speed loss. Here is a reprex that illustrates the speed