Common Interactive Graphics Application Routines (CIGAR).

摘要

With the introduction of interactive graphics into the computing community, bits and pieces of different graphical techniques and capabilities were initially developed to solve different problems on different machines in different languages. The collection and combination of these techniques into one package became a recognized necessity. This was the primary aim of CIGAR - a package of Common Interactive Graphics Application Routines. This package presently enables: the 'drawing' of lines, arcs, and curves; translate, rotate, duplicate, mirror, and erase operations; scale changing, calculation of dimensions, and storage and recall from a data base. CIGAR presently operates on the CDC 6500/1700/274 Digigraphics system at Picatinny Arsenal under SCOPE 3.4.1, IGS V.2, employing 16 overlays and 53.3 K bytes of storage.