Non-photorealistic Scree and Rock Drawing

Scree Drawing

Swiss-style scree drawing (the small dots on the map to the right) is a very labor intensive process. Our Scree Painter software is a specialized tool for the automatic generation of scree patterns for topographic maps. Scree Painter fills polygons with scree stones for Swiss-style maps of mountainous areas.

Scree Painter is used by the Federal Office of Topography swisstopo for generating scree dots for their famous map series.
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Digital scree rendering with Scree Painter (swisstopo map 1193 Tödi)

Jenny, B., Hutzler, E. and Hurni, L. (2010)
Scree representation on topographic maps.
The Cartographic Journal, 47-2, p. 141–149.

Jenny, B., Gilgen, J., Hutzler, E. and Hurni, L. (2010)
Automatische Gerölldarstellung für topographische Karten.
Kartographische Nachrichten, 60-4, p. 188–193.

Rock Drawing

Swiss-style rock drawing for topographic maps requires considerable training and is very time intensive, and automating this process could considerably reduce production costs.
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Manually drawn rock representation (from Imhof, E. (1968) Gelände und Karte)

Gilgen, J. and Jenny, B. (2010).
Digital rock and scree drawing in vector and raster mode.
Geographia Technica, p. 24-31.

Jenny, B., Gilgen, J., Geisthövel, R., Marston, B. and Hurni, L. (2014).
Design principles for Swiss-style rock drawing.
The Cartographic Journal, 51-4, p. 360–371 [editor-reviewed observations article].