Mobile analytics for emergency response and training
Information Visualization - Special issue on visual analytics science and technology
CGIM '08 Proceedings of the Tenth IASTED International Conference on Computer Graphics and Imaging
Real-time rendering of water surfaces with cartography-oriented design
Proceedings of the Symposium on Computational Aesthetics
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City models have become central elements for visuallycommunicating spatial information related to urbanareas and have manifold applications. Our real-timenon-photorealistic rendering technique aims at abstract,comprehensible, and vivid drawings of assemblies ofpolygonal 3D urban objects. It takes into account relatedprinciples in cartography, cognition, and non-photorealism.Technically, the geometry of a building isrendered using expressive line drawings to enhance theedges, two-tone or three-tone shading to draw the faces,and simulated shadows. The edge enhancement offersseveral degrees of freedom, such as interactively changingthe style, width, tilt, color, transparency, and lengthof the strokes. Traditional drawings of cities and panoramasinspired the tone shading that achieves a pleasingvisual color effect. The rendering technique can be appliednot only to city models but to polygonal shapes ingeneral.