create a new centerline method called test and started on the createGraph function
added the tube direction criteria to the createGraph function
removed a possibility of seg fault
added the graph component labeling to the create segments function
fixed an infinite loop in the graph component labeling
started on dijkstra for segments
changed dijkstra with floyd warshall
fixed memory problems with floyd warshall
added removal of centerpoints not in center based on GVF
fixed segment creation after floyd warshall and added sorting on benefit
added filtering of overlapping segments
started on the other functions
added more comments
finished creating connections code
created minimum spanning tree
created a visualize function and fixed some bugs
reduced number of cross sections, much faster now
fixed some possible bugs in the global graph paritioning alg.
getting good results on vascusynth dataset, around 83 percent
added direction constraints for creating connections