Creating a graph
All the required functions are declared in <tulip/Graph.h>
tlp::Graph* g = tlp::newGraph();
This is the only way to create a Tulip graph from scratch, you cannot create a new instance of tlp::Graph as it is an abstract class.
Other ways to get a tlp::Graph is to import it from a file.
To import a file in the Tulip format, simply use :