Suchergebnisse

The development of Free Software is a well established and successful phenomenon which could hardly exist without the Internet, where groups of programmers scattered all around the world are developing software. The idea of Free Software is highly attractive to talented creative students and can stimulate and support their profesional activities. The GNU GaMa [4] for adjusting of geodetic networks, with input data described in XML, is given here as a concrete example. Free Software [3] (or Open Source) projects need not be limited to software development but can generally cover any professional project based on free information exchange; a suggested example is the planned collection of model geodetic networks described in XML.

At the CTU in Prague, there is a long tradition of master degree courses in geodesy, geodetic surveying and cartography. Taking into account the fast development of information technologies in recent decades, we decided to prepare a new study program that would combine computer science with a background of geodetic and cartographic know-how. Apart from other sources, our plans were inspired and influenced by the Review of Education Needs, a report prepared by Stig Enemark (Prague 1998), and by our experience from several Virtual Academy workshops.We have decided to call this program "Geoinformatics" to emphasize the role of computer technologies in collecting, analyzing and exploiting information about our planet. Within this presentation we will explain the basic ideas behind our new study program and emphasize the features that distinguish it from classical geodetic or cartographic programs. We will mention the connection between our new study program and several geodetic and software projects running at our institute - software development for real-time GPS applications, cooperation with the Astronomical Institute, University of Berne, on the development of so-called Bernese GPS Software, the GNU project Gama for adjustment of geodetic networks, etc.

GNU project Gama for adjustment of geodetic networks is presented. Numerical solution of Least Squares Adjustment in the project is based on Singular Value Decomposition (SVD) and General Orthogonalization Algorithm (GSO). Both algorithms enable solution of singular systems resulting from adjustment of free geodetic networks.