A device-independent network graphics system

The design and implementation of a basic graphics system for a heterogeneous network environment is described. The design has been influenced by the SIGGRAPH Core System, GKS, and proposals being considered by the ANSI Technical Committee on Computer Graphics Programming Languages. It permits hierarchical object definition, direct and indirect attribute specification, screen window management and complex styles of interaction. Important parts of the implementation include a device-independent database for graphical objects, a workstation driver which produces device code, and a device kernel which manages the display list. Problems relating to device independence and network partitioning are discussed.