Prof. Dr. Jürgen Döllner


3D Isocontours – Real-time Generation and Visualization of 3D Stepped Terrain Models

Glander, Tassilo; Trapp, Matthias; Döllner, Jürgen in Eurographics 2010 Shortpaper Seipel, Stefan; Lensch, Hendrik ( Hrsg. ), Seite 17-20 . Norrköping, Sweden , The Eurographics Association , 2010 .

Isocontours (also isopleths, isolines, level sets) are commonly used to visualize real-valued data defined over a 2D plane according to a set of given isovalues. To support the 3D landscape metaphor for information visualization, a 3D stepped terrain can be derived by lifting and extruding isolines to their particular isovalue, but typically requires triangulation of the resulting surface representation in a preprocessing step. We present a concept and rendering technique for triangle-based terrain models that provide interactive, adaptive generation and visualization of such stepped terrains without preprocessing. Our fully hardware-accelerated rendering technique creates additional step geometry for each triangle intersecting an iso-plane on-the-fly. Further, an additional interpolation schema facilitates smooth transition between established 3D terrain visualization and its stepped variant.
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Herausgeber Seipel, Stefan; Lensch, Hendrik
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