Accession Number : ADA119923

Title :   GPRIME: A Geometric Language for Finite Element Modeling Program Manual.

Descriptive Note : Final rept.,


Personal Author(s) : McKee,James M ; Golden,Michael E ; Wallace,Dolores R

PDF Url : ADA119923

Report Date : Sep 1982

Pagination or Media Count : 125

Abstract : The GPRIME geometric language is a computer language for describing and manipulating a wide variety of geometric shapes. The GPRIME language processor is a computer program that translates the geometric language description into a set of consistent mathematical definitions using B-spline approximation techniques. GPRIME application programs are computer programs, such as finite element data generators, that make use of the mathematical definitions created by the language processor. This manual is intended for new and experienced users. It describes the GPRIME geometric language, the GPRIME language processor, and recommended procedures for geometric modeling with GPRIME. With the GPRIME language it is simple to create mathematical models of complex geometry. Classical shapes are defined using straight-forward expressions, and more general curves and surfaces can be defined using digitized coordinate data. The GPRIME processor uses interactive computer graphics for defining geometry and for aiding in visualizing the model being created. The processor creates a geometric data base which may be used for restarting the definition process at later sessions. The GPRIME language was designed for use in creating finite element structural analysis models but can be applied wherever a description of geometry is required. This manual defines the form and syntax of the GPRIME language and its command structure.

Descriptors :   *Programming languages, *Geometric forms, *Shape, *Computer graphics, Interactive graphics, Language translation, Finite element analysis, Splines(Geometry), Approximation(Mathematics), Data bases, Syntax, Structural analysis, User manuals, Manipulators, Mathematical models, Geometry

Subject Categories : Theoretical Mathematics
      Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE