Define the createIloNodes function

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The createIloNodes function is defined as in Chapter 4, Minimizing the Number of Vehicles. You use csv reader functionality to input node data and node coordinate data from csv files. You use the member function IloDispatcherGraph::associatebyCoordsInFile to look up the coordinates of a given IloNode in a csv file and automatically associate it to the graph node with matching coordinates. Here is the complete code for defining the createIloNodes function:

void RoutingModel::createIloNodes(const char* nodeFileName,
                                  const char* coordFileName) {
  IloCsvReader csvNodeReader(_env, nodeFileName);
  IloCsvReader::LineIterator  it(csvNodeReader);
  while(it.ok()) {
    IloCsvLine line = *it;
    char * name = line.getStringByHeader("name");
    IloNode node(_env, line.getFloatByHeader("x"),
        line.getFloatByHeader("y"), 0, name);
    node.setKey(name);
    _graph.associateByCoordsInFile (node, coordFileName);
    ++it;
  }
  csvNodeReader.end();
}