Abstract
The modelling of salt domes and other bodies with similar features often requires the construction of a compact 3D representation from scattered sets of geophysical data. These datasets provide only partial information about the unknown volume. A solution is proposed that is based on the representation of an object as the union of simple volume primitives (tetrahedra). Three dimensional triangulation methods are used to generate a valid model and to provide geometrical and topological attributes for the scattered samples set. This generates an exact fit and unambiguous three dimensional model which can be evaluated using a 3D spatial query language.
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