Relative geometry system and method

A computer system comprising:

• a plurality of user simulation devices, wherein each user simulation device is associated with an object displayed in a simulated three-dimensional environment, one or more of the user simulation devices comprising:
• a display device for displaying results of a scan emanating from the displayed object that is associated with the user simulation device;
• and
• a user interface device for allowing a user to enter object control signals for the displayed object;
• a processor coupled to the plurality of user simulation device, the processor comprising:
• a means for receiving object control signals from the user simulation devices;
• a means for creating a simulated thee-dimensional environment based on received object control signals;
• a means for converting three-dimensional location coordinates of each displayed object to coordinates on a two-dimensional grid;
• a means for calculating an area in the two-dimensional grid of a scan that emanates from each displayed object;
• a means for determining which displayed objects with two-dimensional grid coordinates are located in the calculated area of the scan;
• a means for performing relative geometry calculations to determine updated multi-dimensional location coordinates for only the displayed objects determined to be located in the calculated area of the scan to determine movement of the displayed objects within the simulated three-dimensional environment;
• and
• a means for generating an output for each scan based on the performed associated relative geometry calculation;
• wherein the generated output for the scan of the displayed object is sent to the associated user simulation device for display on the display device.