MODELLING AND DISPLAY CONCEPTS IN A HIGH-LEVEL GRAPH I CS PROGRAMMING LANGUAGE
Ch. Mannhardt, G. Schrack · Eurographics · 1980
The definition, manipulation and display of graphical data in an applications program can occur at different levels if graphical data are viewed as a hierarchy of output primitives. This paper discusses concepts of how graphical objects may be defined and desribes how these concepts are reflected in the design of the high-level graphics programming language LIG/P.