José Antonio Ferrari,  Alain Mangin. 

This paper describes a system developed for geometrical modeling and analysis of karst systems. The program calculates the closure of loops in cave surveys by least square method, and provides the means to obtain query derived maps of the underground system. The software integrates OpenGL and Microsoft Jet database engine technologies to produce 3D visualization of cave passages and digital elevation models linked with database. Some examples produced with the system are presented.

http://www.tecgraf.puc-rio.br/geoinfo2000/anais/003.pdf

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