Make grid — make_grid • Makurhini

Make grid

make_grid(
  x,
  hexagonal = TRUE,
  cell_area,
  clip = FALSE,
  grid_boundary = FALSE,
  tolerance = NULL
)

Arguments

x: Object of class sf, sfc, sfg, SpatialPolygons
hexagonal: logical. If TRUE then the geometry grid will be hexagonal otherwise it will be square.
cell_area: numeric. Grid area in the CRS units of object x.
clip: logical. If TRUE, the new grid will be clipped to the x geometry. The operation time will be longer the greater the number of vertices in the polygon of the region. If it is a region with many vertices use the parameter tolerance.
grid_boundary: logical. If TRUE, the "hexagons" or "squares" in the boundaries (i.e, that are not completely within the geometry x) will be removed.
tolerance: numeric. Reduces the number of vertices in the x polygon by simplifying its shape (see, st_simplify). It must be specified in meters

Value

Returns a class object sf with a hexagonal or square polygon grid.

Examples

if (FALSE) { # \dontrun{
library(Makurhini)
library(sf)
data("study_area", package = "Makurhini")
test <- make_grid(x = study_area, hexagonal = TRUE,
                  cell_area = unit_convert(10, "km2", "m2"))
plot(test)
test <- make_grid(x = study_area, hexagonal = TRUE,
                  cell_area = unit_convert(10, "km2", "m2"),
                  clip = TRUE)
plot(test)
test <- make_grid2(x = study_area, hexagonal = TRUE,
                   cell_area = unit_convert(10, "km2", "m2"),
                   grid_boundary = TRUE)
plot(st_geometry(study_area)); plot(test, add = T)
} # }