An Approach on the Modeling and Visualization of the Geological Scene

Abstract

The present work is a reflection on the modeling of a 3D geological scene with the aid of the graph technique of a software tool called PCheGeol(Cheaito, 2013)based on object-oriented programming, starting from a simple object, a set of object layers are placed one upon the other. These objects undergo a set of deformation processes (similar folds and faults), by the interpretation of the chronological history describing the set of folds and faults which are the origin of the current geometric form(Amrouch, 2010).The most common modeling is the technic of static modelingprogrammation(Leon, 1991),starting from a set of points or data, and by the interpolation and extrapolation, in order to describe the real geometric shape regardless of the essential features that realize the actual form of the geological scene. Since the work based on the technic of dynamic modelingprogrammation (Cheaito, 1993 and Perrin, 1993)has always problems with the quantity of data, our approach was based on the mixed BSPtree (Binary Space Partition) data structure to realize such a model. This allows obtaining a flexible model of the visualization of 3D objects and the manipulation of these objects to obtain the cut section and block-diagrams as well as to realize the level lines. It also describes the interior of the object by conserving an optimized quantity of data.