shape_buffered_from_shapefile - add buffer around shape

shape_buffered_from_shapefile - add buffer around shape

Usage

shape_buffered_from_shapefile(shapefile, radius.miles, crs = 4269, ...)

Arguments

shapefile

spatial object like areas at high risk or areas with facilities to be analyzed

radius.miles

width of buffer to add to shapefile (in case dist is a units object, it should be convertible to arc_degree if x has geographic coordinates, and to st_crs(x)$units otherwise)

crs

used in st_transform() default is crs = 4269 or Geodetic CRS NAD83

...

passed to st_buffer()

Value

same format as sf::st_buffer() returns

Details

Just a wrapper for sf::st_buffer()

See also

get_blockpoints_in_shape() shapefile_from_sitepoints() shape_buffered_from_shapefile_points()

Examples

# Within 3 miles of the county borders
fips_counties_from_state_abbrev("DE")[1]
x = shapes_counties_from_countyfips("10001")
xtra = shape_buffered_from_shapefile(x, radius.miles = 3)
map_shapes_leaflet(x) %>%
  map_shapes_leaflet_proxy(xtra, color = "black")