Overview with details for exploring geo-located graphs on maps
| Autor: | Tatiana von Landesberger, Arjan Kuijper, Natalia Andrienko, Felix Brodkorb, Gennady Andrienko |
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| Přispěvatelé: | Publica |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Graph database
Theoretical computer science Computer science 0211 other engineering and technologies 020207 software engineering 02 engineering and technology computer.software_genre Map visualization Graph Forschungsgruppe Visual Search and Analysis (VISA) Graph drawing spatial data 0202 electrical engineering electronic engineering information engineering Computer Vision and Pattern Recognition Networks graph visualization navigation computer Spatial analysis 021101 geological & geomatics engineering |
| Popis: | Geo-located graph drawings often suffer from map visualization problems, such as overplotting of nodes as well as edges and location of parts of the graph being outside of the screen. One cause of these problems is often an irregular distribution of nodes on the map. Zooming and panning do not solve the problems, as they either only show the overview of the whole graph or only the details of a part of the graph. We present an interactive graph drawing technique that overcomes these problems without affecting the overall geographical structure of the graph. First, we introduce a method that uses insets to visualize details of small or remote areas. Second, to prevent the subgraphs within insets from overplotting and edge crossing, we introduce a local area re-arrangement. Moreover, insets are automatically drawn/hidden and repositioned in accordance with the user’s navigation. We test our technique on real-world geo-located graph data and show the effectiveness of our approach for showing overview and details at the same time. Additionally, we report on expert feedback concerning our approach. |
| Databáze: | OpenAIRE |
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