osmplotr (version 0.3.2)

make_osm_map: make_osm_map

Description

Makes an entire OSM map for the given bbox using the submitted data, or by downloading data if none submitted. This is a convenience function enabling an entire map to be produced according to the graphical format specified with the structures argument.

Usage

make_osm_map(bbox, osm_data, structures = osm_structures(),
  dat_prefix = "dat_")

Arguments

bbox

The bounding box for the map. A 2-by-2 matrix of 4 elements with columns of min and max values, and rows of x and y values. If NULL, bbox is taken from the largest extent of OSM objects in osm_data.

osm_data

A list of OSM objects as returned from extract_osm_objects. These objects may be included in the plot without downloading. These should all be named with the stated dat_prefix and have suffixes as given in structures.

structures

A data.frame specifying types of OSM structures as returned from osm_structures, and potentially modified to alter lists of structures to be plotted, and their associated colours. Objects are overlaid on plot according to the order given in structures.

dat_prefix

Prefix for data structures (default dat_). Final data structures are created by appending the suffixes from osm_structures.

Value

List of two components:

1. List of OSM structures each as Spatial(Points/Lines/Polygons)DataFrame and appended to osm_data (which is NULL by default), and

2. The map as a ggplot2 object

See Also

osm_basemap, add_osm_objects.

Examples

# NOT RUN {
structures <- c ('highway', 'park')
structs <- osm_structures (structures = structures, col_scheme = 'light')
# make_osm_map returns potentially modified list of data using the provided
# 'london' data for highways and parks.
dat <- make_osm_map (osm_data = london, structures = structs)
# or download data automatically using a defined bounding boox
bbox <- get_bbox (c(-0.15,51.5,-0.10,51.52))
# }
# NOT RUN {
dat <- make_osm_map (bbox = bbox, structures = structs)
print_osm_map (dat$map)
# }