void cacheSelectedEdges(Agraph_t *g, topview *t)
void updateSmGraph(Agraph_t *g, topview *t)
void renderSmGraph(topview *t)
void pick_object_xyz(Agraph_t *g, topview *t, float x, float y, float z)
void initSmGraph(Agraph_t *g, topview *rv)
void cacheSelectedNodes(Agraph_t *g, topview *t)