Handling discrete surfaces by analysis and simulation

This paper describes the possible enhancements to the classical interface between users and spatial data. In particular, methods to analyse and simulate discrete surfaces will be shown. Surface analysis is described mainly in the context of shape characterisation and topographic feature extraction. Simulation of surface models is proposed using constrained triangulation, which is able to keep in the geometric model the possible morphological constraints imposed by the user. Analysis and simulation are seen as fundamental tools for spatial data handling to provide the basis for advanced management of spatial data in Geographical Information Systems.