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Compilation --- Compiling the source code is easy. If you are running a decent linux installing dependencies and running make should suffice. Make sure the following dependencies are installed: - Boost 1.37+ - sparsehash 1.4+ - g++ 4.2+ (with warnings and unsupported), 4.4+ - libxml2 2.7+ - scons 1.20+ - stxxl 1.2.1+ Building the binaries is done by using scons. It should check for required libraries and header files and report missing ones.The Scons script accepts two optional parameters: --cxx=XYZ lets you specify to use C++ compiler XYZ[[BR]] --stxxlroot=/path/to/stxxl lets you specify the path to the root directory of the stxxl library if it's installed in a non default location Once the dependencies are properly installed running 'scons' should build the binaries. The Sconstruct has been built for Ubuntu 10.04, but it should work under any recent Linux. Running the Server --- Running the server requires preprocessing data from Openstreetmap. To do so you you need to acquire an .osm file. Beware of the world file, because you need serious computing power to preprocess it. Start with a smaller country. The preprocessing runs in three steps, all done by seperate programs. 'extractNetwork file.osm' extracts the road network of an osm file. This is necessary, because the osm data is not made to support fast routing out of the box. The output of the step is a file called 'file.osrm' 'createHierarchy file.osrm' preprocesses the road network and computes additional information that is exploited later to speed up the path computation. The output of this step consists of two file 'file.osrm.hsgr' and 'file.osrm.nodes'. The first file is the so-called hierarchy that speeds up the path computation while the latter one carries (among other things) geographical information. 'routed' starts the server on TCP Port 5000. The server communicates over http and can be queried by any browser or http-capable command line tool. The server responds with KML-formatted output.Assume the server is installed on machine localhost and a map containing the Netherlands has been installed. Computing a route from Amsterdam to Den Haag can be done by calling http://localhost:5000/route&52.370197&4.890444&52.048167&4.3175 which gives a shortest (fastest) route between the two points. To locate a point in the map that is nearest to a given coordinate use the following call http://localhost:5000/nearest&52.048167&4.3175