void destroyGraph();\r
inline Graph* getGraph() { return graph; } \r
ReferenceBlock* getReferenceBlock(int idCategory, int idBlock); // get the reference block from its category and index\r
void destroyGraph();\r
inline Graph* getGraph() { return graph; } \r
ReferenceBlock* getReferenceBlock(int idCategory, int idBlock); // get the reference block from its category and index\r