Only the diehards want to develop applications using basic window system facilities. The preferred approach is a higher-level"toolkit" of user interface components, such as menus and scroll bars. Experience with current ...

An extended model and calculus, called RasterCalc, is presented for operations on discrete graphics rasters, including their colour functions. The operations are separated into two main categories: operations on domains, ...

The fill area primitive is one of the most powerful primitives of GKS and its derivatives (GKS-3D, PHIGS etc.). Since its specrfication is extremely general, it is important to explore new approaches to achieve higher ...

In Computer-Aided Design applications there is often a need to compute the union, intersection and Merence of two polygons or polyhedra. The sequential algorithms for this problem are characterized by poor speed of response ...

The Graphical Kernel System (GKS) has become an international standard in graphics programming and attempts are now being made to integrate it with multiprocessing, possibly in distributed systems. It is therefore necessary ...