A geometrical graphics system will be described and illustrated with slides. The system is implemented at the Pacific Missile Test Center, Point Mugu, California, utilizing an IBM 7094 computer and a DatagraphiX 4460 COM recorder in a batch processing environment. The system features small core requirements, dynamic storage allocation, ANSI FORTRAN subprograms, device independence, and internal homogeneous coordinate techniques. User capabilities include n-dimensional constructions, prism and pyramid generation,cross sec-tioning and truncation of solids, automatic view point selection along an axis and automatic scaling, implied edges, hidden line deletion, and transformations such as dilation, translation, rotation, reflection, and projection. Graphical output presented will include line drawings of esthetic and commercial art experiments, crystallographic solids, and other geometric illustration.
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