add_axes: add_axes

In osmplotr: Bespoke Images of 'OpenStreetMap' Data

Description

Adds axes to the internal region of an OSM plot.

Usage

add_axes(
  map,
  colour = "black",
  pos = c(0.02, 0.03),
  alpha = 0.4,
  fontsize = 3,
  fontface,
  fontfamily,
  ...
)

Arguments

map	A ggplot2 object to which the axes are to be added.
colour	Colour of axis (determines colour of all elements: lines, ticks, and labels).
pos	Positions of axes and labels relative to entire plot device.
alpha	alpha value for semi-transparent background surrounding axes and labels (lower values increase transparency).
fontsize	Size of axis font (in ggplot2 terms; default=3).
fontface	Fontface for axis labels (1:4=plain,bold,italic,bold-italic).
fontfamily	Family of axis font (for example, 'Times').
...	Mechanism to allow many parameters to be passed with alternative names (color for colour and xyz for fontxyz.

Value

Modified version of map with axes added.

See Also

osm_basemap.

Examples

bbox <- get_bbox (c (-0.13, 51.5, -0.11, 51.52))
map <- osm_basemap (bbox = bbox, bg = "gray20")
map <- add_osm_objects (map, london$dat_BNR, col = "gray40")
map <- add_axes (map)
print (map)

# Map items are added sequentially, so adding axes prior to objects will
# produce a different result.
map <- osm_basemap (bbox = bbox, bg = "gray20")
map <- add_axes (map)
map <- add_osm_objects (map, london$dat_BNR, col = "gray40")
print_osm_map (map)

osmplotr documentation built on March 28, 2021, 1:09 a.m.