Paris, the Amazon river and the railway are built using OpenStreetMap and contributors (ODbL licensed map data).
The OpenFlights Airport, Airline and Route Databases are available under the Open Database License.
Cairo is under LGPL License, Boost is under Boost Software License, C++ Dijkstra algorithm from RosettaCode is under the GFDL license.
GDAL, LibOSMPBFReader and JSON.hpp are under MIT License, extract.sh from InfoAmazonia isn't licensed.
Lodash, node-dijkstra, proj4js, node-osm-stream and sync-request are under MIT License.
My code is under GPLv3.
dijkstra-cartography
Copyright (C) 2016 ibaaj
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>