3D Geoinformation Science: The Selected Papers of the 3D by Martin Breunig, Mulhim Al-Doori, Edgar Butwilowski, Paul V.

By Martin Breunig, Mulhim Al-Doori, Edgar Butwilowski, Paul V. Kuper, Joachim Benner, Karl Heinz Haefele

Nowadays 3D Geoinformation is required for plenty of making plans and research projects. for instance, 3D urban and infrastructure versions are paving the best way for complicated environmental and noise analyzes. 3D geological sub-surface versions are wanted for reservoir exploration within the oil-, gas-, and geothermal undefined. therefore 3D Geoinformation brings jointly researchers and practitioners from assorted fields resembling the geo-sciences, civil engineering, 3D urban modeling, 3D geological and geophysical modeling, and, final yet no longer least, laptop technological know-how. the various demanding situations of 3D Geoinformation technology trouble new methods and the improvement of criteria for above- and under-ground 3D modeling, effective 3D facts administration, visualization and research. ultimately, the combination of other 3D methods and information versions is visible as essentially the most very important demanding situations to be solved.

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Especially for landmarks, the shape should represent the characteristics of such buildings. Based on the ExtrusionBaseModel, different strategies are implemented for the LoD1 generalization process. Depending on the strategy, building footprints, wall footprints or slab footprints are used to determine one or more vertical extrusions for the final LoD1 model (see also Sect. 2). The first strategy calculates one extrusion for the whole building. Thereby, all footprints of the relevant building elements are used.

With the presented model, it is easy to navigate not only on top of meshed data like simplicial complexes but also to freely navigate between the object level and net level representation of a geo-object. g. TIN and B-Rep in one application. 1 Handling Levels of Detail The planning of a system of tunnels for underground railways is a complex task with different protagonists such as city planners, civil engineers, geologists etc. However, they share geometry and topology as central parts of their models.

In: Proceedings 3D geoInfo 2011, Wuhan, 9 p Breunig M, Butwilowski E, Golovko D, Kuper PV, Menninghaus M, Thomsen A (2012) Advancing DB4GeO. In: Proceedings 3D Geoinfo 2012, Quebec, Canada. Lecture notes in geoinformation and cartography. Springer, pp 193–210 Breunig M, Butwilowski E, Kuper PV, Golovko D, Thomsen A (2013a) Topological and geometric data handling for time-dependent geo-objects realized in DB4GEO. In: Timpf S, Laube P (eds) Advances in spatial data handling. Advances in geographic information science.

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