Hasso-Plattner-Institut
  
Hasso-Plattner-Institut
Prof. Dr. Jürgen Döllner
  
 

Publications

Illustrating Terrains using Direction of Slope and Lighting

Buchin, Kevin and Sousa, Mario Costa and Döllner, Jürgen and Samavati, Faramarz and Walther, Maike
In 4th ICA Mountain Carthography Workshop, pages 259–269, 2004

Abstract:

Landscape illustrations and cartographic maps depict terrain surface in a qualitatively effective way. In this paper, we present a framework for line drawing techniques for automatically reproducing traditional illustrations of terrain by means of slope lines and tonal variations. Given a digital elevation model, surface measures are computed and slope lines of the terrain are hierarchically traced and stored. At run-time slope lines are rendered by stylized procedural and texture-based strokes. The stroke density of the final image is determined according to the light intensities. Using a texture based approach, the line drawing pipeline is encapsulated from the rendering of the terrain geometry. Our system operates on terrain data at interactive rates while maintaining frame-to-frame coherence.

Keywords:

Terrain visualization, non-photorealistic rendering

BibTeX file

@inproceedings{BSDSW04,
author = { Buchin, Kevin and Sousa, Mario Costa and D{\"o}llner, J{\"u}rgen and Samavati, Faramarz and Walther, Maike },
title = { Illustrating Terrains using Direction of Slope and Lighting },
booktitle = { 4th ICA Mountain Carthography Workshop },
pages = { 259--269 },
year = { 2004 }
}

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last change: Fri, 14 Aug 2009 11:34:56 +0200