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Virtual 3D city models are used for different applications such as urban planning, navigation, pedestrian behaviour, historicalinformation, and disaster management. These applications require rich information models that associate urban objects not only withtheir geometric properties but also with other types of information. When designing such models the choice of visualizationtechniques is far from trivial because the city objects must be displayed together with additional information, such as historical facts,planning projects, pollutant concentration, noise level, etc. Finding relevant techniques depends on a set of criteria such as the typeof information, but also on the tasks that will be performed and the associated context. Furthermore, a technique that is relevantwhen used in isolation may generate visual incompatibilities when used in conjunction with another one. We have defined a modelfor the representation of information visualization techniques in 3D city models. We have implemented this model in the form of anontology and a knowledge base of techniques currently used in 3D city models or 3D GIS. The goal of such an approach is toprovide a knowledge repository to support the design of 3D virtual city models in which non-geometric information must bepresented. In this paper we describe the model and the ontology of information visualization techniques that we designed. We alsoshow how the associated knowledge base can be used for the selection of visualization techniques depending on different criteriaincluding task and context, and for the detection of visual incompatibilities between techniques when used in the same scene

A REPOSITORY OF INFORMATION VISUALIZATION TECHNIQUES TO SUPPORT THE DESIGN OF 3D VIRTUAL CITY MODELS