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EN
Examples of unusual and unconventional graphic solutions which we can often find in the times of fast developing computer technology are discussed in the article. Many of them are suggested by various GIS programs, few of them may be found in the press or on the Internet. This means that their users are people who are not associated with cartography and who are not familiar with the framework of cartographic methods.
EN
Various aspects of merging the chosen presentation methods (choropleth and diagram) on one map are discussed in the article. Attention is focused on the graphic match of both methods, on the character and reference of data presented in this manner. Examples of such matches are shown, from the simplest application to complicated anamorphic presentations.
EN
Nowadays a lot of people are trying to make maps, and especially digital maps. A wide range of computer tools and high graphic capabilities have together made maps increasingly popular and seemingly easy to prepare for any person who can use a computer. It seems necessary to verify the bases of the cartographic presentation methods. There is a need for a new, formalized view of the method as a sequence of steps from data collection, to correct presentation, to map. Two terms related to cartographic presentation should be distinguished in this article: “methods” and “forms.” A method is understood as the process by which data is transformed into a presentation. A form is understood as the end result of this process, i.e. the resulting graphical image or map. In the article five types of cartographic presentation are indicated. In the successive types, one can observe an increasing degree of complexity of cartographic presentation.
EN
The purpose of this study was to produce a multifaceted presentation of a small region. It was realised based on two aims: the collection of spatial and statistical data, and the analysis of the data from the perspective of physical and socio-economic geography. Mrozy commune (Polish gmina Mrozy) is located in the eastern part of the Masovian voivodeship, in the county of Minsk (Polish - powiat miński). The initial stage involved obtaining data from various sources. The second phase concerned the assessment of the data's quality. Next, appropriate visualization methods were selected; the authors used cartographic techniques for data presentation, resulting in a set of thematic maps at a scale of 1:100,000. The final part of this research concerned the evaluation of the results and the verification and correction of errors. The accuracy of the maps for this small area has been checked and the maps will be made available to the local authorities.
EN
Multivariate mapping is a technique in which multivariate data are encoded into a single map. A variety of design solutions for multivariate mapping refers to the number of phenomena mapped, the map type, and the visual variables applied. Unlike other authors who have mainly evaluated bivariate maps, in our empirical study we compared three solutions when mapping four variables: two types of multivariate maps (intrinsic and extrinsic) and a simple univariate alternative (serving as a baseline). We analysed usability performance metrics (answer time, answer accuracy, subjective rating of task dificulty) and eye-tracking data. The results suggested that experts used all the tested maps with similar results for answer time and accuracy, even when using four-variable intrinsic maps, which is considered to be a challenging solution. However, eye-tracking data provided more nuances in relation to the diference in cognitive efort evoked by the tested maps across task types.
EN
The online Atlas kartograficznych metod prezentacji [Atlas of cartographic presentation methods, hereinafter the Atlas] is a research project being carried out at the Department of Cartography of the University of Warsaw. The aim of the project is to systematize knowledge about the use of cartographic presentation methods. This study discusses selected issues related to two of the five presentation methods analysed in the project, viz. the choropleth map and the diagram map. A rational application of two quite commonly-used presentation methods leads to a number of problems. These problems are most easily visible during attempts to program its implementation in the web-based Atlas and are largely due to the difficulties with drawing a clear boundary between what is a good and a bad map. For this reason, the system operator’s skill and eye for the graphics of semi-automated visualisation seem to be of key importance.
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