The tangible Braille plot is a supportive system to analyze movements of entities, e.g. people or vehicles, around a location of interest (LOI). It uses a cylindrical coordinates system where radius and angle encoded the distance and orientation from the LOI, and height the time.

To interact with the visualization a dedicated tangible controller has been made. This controller allow the user to filter the representation by choosing the window of time to explore, moving the handle along the length of the pipe, or selecting the angle to be explored, rotating the handle to define the angle limits.