Abstract: A process for optimizing a tile mesh for a surface in a level-of-detail hierarchy includes obtaining a plurality of elevation values for an elevation grid of the surface, downsampling the elevation grid to a resolution based on a minimum edge size for triangles of the tile mesh as determined by a level-of-detail parameter, encoding the elevation grid into a linearized quadtree of virtual nodes, iteratively optimizing the quadtree according to an adaptive sampling pattern based on one or more prioritized split tests; and converting the optimized linearized quadtree into a tile mesh.

Abstract: A process for optimizing a tile mesh for a surface in a level-of-detail hierarchy includes obtaining a plurality of elevation values for an elevation grid of the surface, downsampling the elevation grid to a resolution based on a minimum edge size for triangles of the tile mesh as determined by a level-of-detail parameter, encoding the elevation grid into a linearized quadtree of virtual nodes, iteratively optimizing the quadtree according to an adaptive sampling pattern based on one or more prioritized split tests; and converting the optimized linearized quadtree into a tile mesh.

Abstract: A system and process that incorporates hardware and software as elements to be combined with procedures and processes to obtain, format, store, combine, control, display, record, and visualize dynamic scenarios by interacting with accurate, realistic models and actual events within, on, and above a three-dimensional surface to be observed or modeled. The present invention software and process is capable of displaying extremely high resolution terrain models and imagery in real time over the entire surface of the planet, as well as a large number of moving entities and their associated graphical models. These features, combined with a network application programming interface (API), make the present invention suitable for flight simulation out-the-window displays, command and control scenarios, and mission review or rehearsal.