View source: R/create_hexmap.R
create_hexmap | R Documentation |
Allocates each polygon in a shape file to a grid point to create a map of tessellated hexagons. The spatial relationships of areas are preserved while the geographic shape of each area is lost.
create_hexmap( shp, sf_id, hex_size = NULL, buffer_dist = NULL, hex_filter = 10, f_width = 30, focal_points = NULL, order_sf_id = NULL, export_shp = FALSE, verbose = FALSE )
shp |
a shape file, if class is SPDF, will be converted to sf |
sf_id |
name of a unique column that distinguishes areas |
hex_size |
a float value in degrees for the diameter of the hexagons |
buffer_dist |
distance in degrees to extend beyond the geometry provided |
hex_filter |
amount of hexagons around centroid to consider |
f_width |
the angle used to filter the grid points around a centroid |
focal_points |
a data frame of reference locations when allocating hexagons, capital cities of Australia are used in the example |
order_sf_id |
a string name of a column to order by for allocating |
export_shp |
export the simple features set |
verbose |
a boolean to indicate whether to show function progress |
a data set containing longitude and latitude of allocated hexagon points for each non null geometry passed in the shape file
data(tas_lga) # Smaller set for faster example tas_lga_sub <- tas_lga[1:10,] data(capital_cities) hexmap <- create_hexmap( shp = tas_lga_sub, sf_id = "lga_code_2016", hex_filter = 3, focal_points = capital_cities, verbose = TRUE)
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