4D data exploration

This is an extension of the 3 linked cross-sections of a volumic data to the time domain. It is invoked command-line through a syntax as simple as 'fn_4Dview(data)' or more elaborated as 'fn_4Dview(Y,'clip',[0 40],'2d','in',2,'time','fifth',1)'.

Interesting features are:
- mouse-selection of regions of interest (ROI) and plot their time courses
- mouse-selection of frames to bin
- display of velocity images (quiver) and mesh surfaces available as well
- handle transformation between different referentials
- specify the clipping
- see help for more...

Example utilization are available in the following movies http://www.weizmann.ac.il/home/deneux/toolboxMatlab/fn_4Dview.html (3D example) and http://www.weizmann.ac.il/home/deneux/toolboxMatlab/fn_4Dview2.html (2D example).

Type 'fn_4Dview demo' for a guided example and 'help fn_4Dview' for more information.