bng_grid {osbng} | R Documentation |
Map BNG References to Spatial Objects
Description
Generate a spatial data frame of BNG references and grid square geometries.
Usage
bng_grid_100km(xmin, ymin, xmax, ymax, ...)
bng_grid_50km(xmin, ymin, xmax, ymax, ...)
bng_grid_10km(xmin, ymin, xmax, ymax, ...)
bng_grid_5km(xmin, ymin, xmax, ymax, ...)
bng_grid_1km(xmin, ymin, xmax, ymax, ...)
Arguments
xmin , ymin , xmax , ymax |
Optional bounding box coordinates. |
... |
Additional arguments. Not currently used. |
Details
These convenience functions generate a spatial data frame of BNG references
and grid square geometries at pre-determined resolutions. This function
combines bbox_to_bng()
and bng_to_grid_geom()
into a data
frame. Optionally, the grid can be for a defined bounding box area of
interest. If the bounding box is omitted, then all grid squares within the
valid bounds of the BNG are returned.
Only selected resolutions are provided to avoid excessively large data
frames. For additional spatial data files of all resolutions, please see the
osbng-grids
GitHub repo.
The sf
package is required for this function.
Value
Data frame object of type sf
with the grid reference as a
BNGReference
object and the grid square polygon geometry.
See Also
Examples
bng_grid_100km()
bng_grid_1km(529476, 179654, 532170, 181116)