Interactive Creation of Instructions for Interactive Graphic Analysis (INGA)

摘要

The aim of the development of the interactive programing (Interactive Graphis Analysis) is to perform computer aided structural analysis (auxillary finite element techniques such as pre-. medio- and postprocessing). In the design of the INGA system the modular concept was used written in FORTRAN. The program is hardware-independent and currently implemented on Control Data, DEC, IBM, Prime and UNIVAC computers with calligraphic (directed beam), raster and storage displays. The system is so flexible that extensions and alterations are introduced without difficulties. There is a collection of graphics subroutines available named GASIC INGA. These subroutines are used for the development of new application functions which are then integrated into the INGA system in the EXTRA part for all additional user defined operations. Interactive work often implies the repretition of sequences of commands with sometimes slightly different parameters. The proparation of some typical sequences of commands is a useful help for an interactive menu-driven program.