Figure 2
![Figure 2](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1756-0500-7-274/MediaObjects/13104_2013_Article_2798_Fig2_HTML.jpg)
TrackArt SIM. Simulations in Domain mode. Simulations show particles behaving with different constant rates, on the same domain map. A-B. Trajectories of particles diffusing with D = 2 μm2/s, with k 1-2 = 0 (domains acting as obstacles) and k 2-1 = 0 (domains acting as region of confined diffusion), respectively. C-D. Particles diffusing with D 1 = 2 and D 2 = 0.2 μm2/s and constant rates (C) k 2-1 = 5, k 1-2 = 20 and (D) k 2-1 = 20, k 1-2 = 5. For all simulations (A-D) N = 1000 steps per trajectory, Δt = 10 ms.