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The program animation system PASTIS

The Journal of Visualization and Computer Animation1991Vol. 2(1), pp. 26–33

Heinrich Müller, Jörg Winckler, Stefan Grzybek, M. Otte, Bertram Stoll, Frederic Equoy, Nicolas Higelin

Abstract

Abstract The software animation system PASTIS (Program Animation System with Interactive Solutions) for program animation with emphasis on the visualization of the dynamic behaviour of algorithms and data structures is presented. Its main properties are unmodified source code of the visualized program, concurrent multiple views on algorithms and data structures, and interactive alterations of views during run time. PASTIS is distinguished by high modularity and strict separation of its components. This makes it particularly suitable for distributed computing environments. The interface between program and animation is a relational data model. Animations are directed by a single tuple, or sets of tuples, called relations, or sets of relations, called networks. Animations can be nested hierarchically. A prototype of PASTIS was implemented under Unix Unix is a trademark of AT&T. using the GNU source level debugger gdb and the X‐window system.

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