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The observation area to display. Updated by popDrawData() with the latest observation area snapshot.
Latest snapshot of the potential field to be displayed. This is a certain pontetial field of a certain pedestrian. See 'Simulation' for more information. For debug purposes. Updated by popDrawData().
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Latest snapshot of the jts diagram to be displayed. Updated by popDrawData().
Lists for thread safe data exchange between main and draw thread.
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Synchronizer object used to control access to the simulation data exchange structures to avoid threading issues.