Considering Visual Variables as a Basis for Information Visualisation

Abstract

The purpose of this report is to discuss Bertin's concepts about visual variables [Bertin 67/83], which are no longer readily available since they are out of print. Bertin introduced the idea of visual variables as part of his extensive analysis of cartography in the creation of what he terms data graphics as part of his Semiology of Graphics [Bertin 67/83]. In this report these concepts are discussed in terms of computational information visualisation instead of printed cartography. The discussion will centre on how these visual variables can be used in the creation of visual representations for the purpose of informaion visualisation.