Accession Number : ADA317028

Title :   Three-Dimensional Modeling Station, Phase II.

Descriptive Note : Technical rept. Oct 93-Dec 95,

Corporate Author : MANDEX INC FAIRFAX VA

Personal Author(s) : Zhang, Lei ; Maida, Javier F. ; James, Gregory D.

PDF Url : ADA317028

Report Date : OCT 1996

Pagination or Media Count : 55

Abstract : 13. ABStRACT (Maximum 200 words) The objective of this Phase II SBIR project was to provide the U.S. Army Topographic Engineering Center (TEC) with a Three-Dimensional (3-D) Modeling Station composed of hardware, software, and development tools, and to create and populate a data base with models of suitable features found in Defense Mapping Agency's Interim Terrain Data (ITD) set, at an appropriate level of detail. A low-end DOS-based system and a high-end UNiX-based system were configured to meet the varied requirements of simulator data base development, and over 160 3-D feature models were created using the modeling stations. These models represent terrain features, both natural and man-made, defined in the DMA's lTD. Models are available in AutoCAD DXF, IRIS Open Inventor (IV), and Wavefront OBJ formats. A relational data base was designed and created to store the model information, and serves as a standard model library. A DBMS system with the X-Window/Motif graphical user interface was developed to provide tools for model data manipulation and management. Dynamic model placement tools were developed for placing models into simulation scenes. Using these tools, the following three feature types can be placed: point, linear, and area.

Descriptors :   *COMPUTER PROGRAMS, *THREE DIMENSIONAL, DATA BASES, SIMULATORS, STATIONS, SIMULATION, DATA MANAGEMENT, MODELS, TOOLS, DYNAMICS, INTERFACES, TERRAIN, TOPOGRAPHY, EMPLACEMENT, FORMATS, MANMADE, GRAPHICS, USER NEEDS, LIBRARIES, WAVEFRONTS.

Subject Categories : Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE