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Geovisualization in Multiscale Environments: Mapping Hierarchies By Different Representation Techniquesтезисы доклада
- Автор: Samsonov Timofey
- Сборник: Book of abstracts of International Geographical Union Regional Conference “Geography, Culture and Society for Our Future Earth”, 17–21 August 2015, Moscow, Russia
- Серия: Thematic Session "Cultural Regionalism and Regional Identity"
- Тезисы
- Год издания: 2015
- Издательство: Izdatel'stvo Moskovskogo Gosudarstvennogo Universiteta im.M.V.Lomonosova/Publishing House of Moscow State University
- Местоположение издательства: Russian Federation
- Первая страница: 308
- Аннотация: Multiscale mapping is a hot topic in modern cartographic community, and is widely applied in geographic research. It helps us to understand the structural patterns of geographical phenomena that appear in different scales of observations. Sometimes these patterns are established by human, and may have strictly defined borders, such as hierarchy of administrative units. Most of the natural phenomena do not have such well-defined partonomy and can be decomposed into structural levels using spatial statistics and generalization techniques. Our observational research summarizes modern achievements in development of specialized visualization techniques and supporting data analytics for multiscale mapping. We show that appropriate selection of graphical variables, such as color and size of symbols and areas, is essential for understanding the differences between value distributions and spatial distributions in different scales. Changes appearing across scales can be closely related to modifiable unit problem in case of administrative units, and should be reflected in visual representations. We introduce a set of rules for thematic and general mapping that allow for consistent changes of symbology in map zooming process. One of the novelties of our study is establishment of the close relationship between visualization technique and underlying generalization operations that support not only the geometric representation of the phenomena itself, but gives the base geometric information for symbol placement and related properties. The study is illustrated by various examples from general, hypsometric, hydrometeorological and socio-economical mapping
- Добавил в систему: Самсонов Тимофей Евгеньевич