% TT_Tools_demo(project_file)
%
% This function demonstrates basic functionality of the Tracking Tools API
% from Natural Point (to be used with Optitrack). Before use it is
% essential to have calibrated cameras and created the desirable
% trackable/s and save these in a project file. The project file is then
% passed to the function and the library loaded if need be before
% attempting to plot any data
%
% Input - project_file - a string containing path and filename for the
% project file that is to be used (default value assigned if
% not assigned)
%
% Written by Glen Lichtwark, University of Queensland, Australia
% Last updated: 22nd Jan 2010
% Please acknowledge in any academic papers which may utilise this code