debug_openstreetmap.m

% example script for using the OpenStreetMap functions
% to illustrate usage of the OpenStreetMap functions for MATLAB
%
% See also PARSE_OPENSTREETMAP, PLOT_WAY, EXTRACT_CONNECTIVITY,
%          GET_UNIQUE_NODE_XY.
%
% 2010.11.25 (c) Ioannis Filippidis, jfilippidis@gmail.com

% download an OpenStreetMap XML Data file (extension .osm) from the
% OpenStreetMap website:
%   http://www.openstreetmap.org/
% after zooming in the area of interest and using the "Export" option to
% save it as an OpenStreetMap XML Data file, selecting this from the
% "Format to Export" options. The OSM XML is specified in:
%   http://wiki.openstreetmap.org/wiki/.osm
openstreetmap_filename = 'openstreetmap/genoa_small.osm';

%% convert XML -> MATLAB struct
% convert the OpenStreetMap XML Data file donwloaded as map.osm
% to a MATLAB structure containing part of the information describing the
% transportation network
[parsed_osm, osm_xml] = parse_openstreetmap(openstreetmap_filename);

%% plot
% plot the network, optionally a raster image can also be provided for the
% map under the vector graphics of the network
ax = gca;
plot_way(ax, parsed_osm)
%plot_way(ax, parsed_osm, map_img_filename) % if you also have a raster image

%% find connectivity
[connectivity_matrix, intersection_node_indices] = extract_connectivity(parsed_osm);
[uniquend] = get_unique_node_xy(parsed_osm, intersection_node_indices);