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dc.contributor.advisorZyda, Michael J.
dc.contributor.advisorPratt, David R.
dc.contributor.authorMackey, Randall Lee
dc.dateSeptember 1991
dc.date.accessioned2013-02-15T23:33:02Z
dc.date.available2013-02-15T23:33:02Z
dc.date.issued1991-09
dc.identifier.urihttp://hdl.handle.net/10945/28402
dc.descriptionApproved for public release; distribution is unlimited
dc.description.abstractNPSNET is a low-cost visual simulation system designed and constructed at the Naval Postgraduate School. NPSNET uses digital terrain data and renders scenes involving vehicles, aircraft, cultural features, and natural features in real-time. The implementation of a terrain paging algorithm in NPSNET is discussed. Terrain paging expands the terrain area available for simulation and overcomes the limits of main memory size. Hierarchical data structures commonly used in visual simulation systems are surveyed. The generation of a multi-resolution terrain dataset and the implementation of a hierarchical data structure are explained. The multi-resolution dataset is created by generating lower resolution descriptions of polygons from the original data. The hierarchical data structure used in NPSNET, based on quadtrees, provides a means to attenuate the resolution of terrain over distance and cull those portions of terrain outside of the user's field of view.
dc.description.urihttp://archive.org/details/npsnethierarchic00mack
dc.format.extent81 p.;28 cm.en_US
dc.language.isoen_US
dc.publisherMonterey, California. Naval Postgraduate Schoolen_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
dc.titleNPSNET : hierarchical data structures for real-time three-dimensional visual simulation.en_US
dc.typeThesisen_US
dc.contributor.corporateNaval Postgraduate School (U.S.)
dc.contributor.departmentComputer Science
dc.subject.authorcomputer graphics
dc.subject.authorsimulators
dc.subject.authorhierarchical data structures
dc.subject.authordigital terrain data
dc.description.serviceCaptain, United States Army
etd.thesisdegree.nameM.S. in Computer Scienceen_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.disciplineComputer Scienceen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US


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