geo_buffer {stplanr} | R Documentation |
This function solves the problem that buffers will not be circular when used on non-projected data.
geo_buffer(shp, dist = NULL, width = NULL, ...)
shp |
A spatial object with a geographic CRS (e.g. WGS84) around which a buffer should be drawn |
dist |
The distance (in metres) of the buffer (when buffering simple features) |
width |
The distance (in metres) of the buffer (when buffering sp objects) |
... |
Arguments passed to the buffer (see |
Requires recent version of PROJ (>= 6.3.0).
Buffers on sf
objects with geographic (lon/lat) coordinates can also
be done with the s2
package.
lib_versions <- sf::sf_extSoftVersion() lib_versions if (lib_versions[3] >= "6.3.1") { buff_sf <- geo_buffer(routes_fast_sf, dist = 50) plot(buff_sf$geometry) geo_buffer(routes_fast_sf$geometry, dist = 50) # on legacy sp objects (not tested) # buff_sp <- geo_buffer(routes_fast, width = 100) # class(buff_sp) # plot(buff_sp, col = "red") }