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Open access

Jerzy Siwek

Open access

Jerzy Siwek

Open access

Jerzy Siwek

Abstract

The beginnings of sozological cartography in Poland go back to the second half of 1960s. Since those times many maps showing both relatively small areas and entire voivodships as well as the whole country have been published. A large range of territories corresponds to an equally large variation of the scale: from 1:10 000 and 1:25 000 scales to small scales in school atlases. The content of the individual maps exhibits a large differentiation — from the monothematic approaches to the richest in content, comprehensive 1:50 000 scale Sozological Map of Poland, published since the early 1990s. The state of the natural environment of Poland, presented on many detailed maps, still awaits a synthesis in form of general regional maps, thus of medium-scale maps.

Open access

Can analytical shading be art?

Reflections on the canvas of experiments with ArcGIS and Surfer

Jerzy Siwek and Wojciech Wacławik

Abstract

Despite numerous theoretical and experimental studies of analytical relief shading, devised about half a century ago, its quality has not yet reached the excellence of traditional (manual) shading. The paper discusses its basic principles and the main factors affecting the quality of shading. It also stresses the crucial importance of the digital terrain model used as the basis for shading as well as the proper generalization of the relief. Experiments with shading modules of ArcGIS and Surfer, aiming to explore the functionality of algorithms they employ, have demonstrated significant similarity of the results. In conclusion, the authors attempt to answer the question posted in the title of the article. In their view, analytical shading is not art because shading algorithms are incapable of producing the visually beautiful effects that an experienced cartographer with artistic talents can create.