GUI $ swimview file1.txt file2.txt... $ swimview Basic functionality is: Just be able to render a swim file polygon + swimmers (triangles or circles) Next functionality Able to render one of many swim files, and toggle between Fl_Output field: curr_swim_file name Hot-key for toggling through if multiple files maybe: Fl_Output for poly region maybe: Fl_Output for swimmer locations types o GUI should have buttons for switching between swim files