Mechanisms on Graphical Core Variables in the Design of Cartographic 3D City Presentations

Abstract

Virtual 3D city models are increasingly used in geospatial planning and discussion processes. This is one reason that the effectiveness and expressiveness of the presentation form has to be investigated from a cartographic point of view. This investigation reaches from recording and modelling procedures for 3D city models to a semiotic model, which has to be adapted for the use of 3D. This contribution focuses on mechanisms on graphical core variables that play an important role for the precise geospatial information transmission with 3D. Methods of non-photorealistic rendering can be combined with cartographic requirements. By this means a new potential for the graphic design of cartographic 3D city presentations can be shown.