extract_osm_objects

OSM key to search for. Useful keys include 'building',
'waterway', 'natural', 'grass', 'park', 'amenity', 'shop', 'boundary', and
'highway'. Others will be passed directly to the overpass API and may not
necessarily return results.

OSM value to match to key. If NULL, all keys will be returned.
Negation is specified by '!value'.

value

the bounding box within which all key-value objects should be
downloaded.  Must be a vector of 4 elements (xmin, ymin, xmax, ymax).

bbox

A list of additional key-value pairs to be passed
to the overpass API.

extra_pairs

Downloads OSM XML objects and extracts 'sp' polygons or lines.  Requires
conversion to osmar object which can be quite slow, as can final conversion
to sp object for large numbers of objects

Produces customisable images of OpenStreetMap data.  Extracts OpenStreetMap data for specified key-value pairs (e.g.  key="building") using the overpass API. Different OSM objects can be plotted in different colours using the function add_osm_objects().  The function group_osm_objects() enables customised highlighting of selected regions using different graphical schemes designed to contrast with surrounding backgrounds.

extract_osm_objects: extract_osm_objects

Description

Usage

Arguments

Value