Fast polygon grid creation

The {wk} package provides a very fast alternative to create a polygon grid compared to sf::st_make_grid().

Code

library("sf")
library("wk")

## sf
system.time({
  bbox = st_bbox(c(xmin = 0, xmax = 500, ymin = 0, ymax = 500))
  grid = st_make_grid(bbox, cellsize = 1, what = "polygons")
})

##    user  system elapsed 
##    7.47    0.06    7.54

## wk
system.time({
  bbox = rct(xmin = 0, xmax = 500, ymin = 0, ymax = 500)
  grid = grd(bbox, dx = 1, dy = 1, type = "polygons")
  grid = st_as_sfc(grid) # convert to sfc
})

##    user  system elapsed 
##    0.56    0.02    0.58