TY - CHAP A1 - Otten, Heike A1 - Hildebrand, Lennart A1 - Nagel, Till A1 - Dörk, Marian A1 - Müller, Boris T1 - Shifted Maps BT - Revealing spatio-temporal topologies in movement data T2 - 2018 IEEE VIS Arts Program N2 - We present a hybrid visualization technique that integrates maps into network visualizations to reveal and analyze diverse topologies in geospatial movement data. With the rise of GPS tracking in various contexts such as smartphones and vehicles there has been a drastic increase in geospatial data being collect for personal reflection and organizational optimization. The generated movement datasets contain both geographical and temporal information, from which rich relational information can be derived. Common map visualizations perform especially well in revealing basic spatial patterns, but pay less attention to more nuanced relational properties. In contrast, network visualizations represent the specific topological structure of a dataset through the visual connections of nodes and their positioning. So far there has been relatively little research on combining these two approaches. Shifted Maps aims to bring maps and network visualizations together as equals. The visualization of places shown as circular map extracts and movements between places shown as edges, can be analyzed in different network arrangements, which reveal spatial and temporal topologies of movement data. We implemented a web-based prototype and report on challenges and opportunities about a novel network layout of places gathered during a qualitative evaluation. KW - Karte KW - GPS KW - Visualisierung KW - Bewegung KW - Daten Y1 - 2018 SN - 978-1-7281-2805-4 U6 - https://doi.org/10.1109/VISAP45312.2018.9046054 SP - 1 EP - 10 PB - Institute of Electrical and Electronics Engineers (IEEE) CY - Berlin ER - TY - CHAP A1 - Nagel, Till A1 - Heidmann, Frank A1 - Condotta, Massimiliano A1 - Duval, Erik T1 - Venice unfolding BT - a tangible user interface for exploring faceted data in a geographical context T2 - NordiCHI '10 : Proceedings of the 6th Nordic Conference on Human-Computer Interaction: Extending Boundaries N2 - We introduce Venice Unfolding, a case study on tangible geo-visualization on an interactive tabletop to enable the exploration of architectural projects in Venice. Our tangible user interface consists of a large display showing projects on a map, and a polyhedral object to browse these data interactively by selecting and filtering various metadata facets. In this paper we describe a prototype employing new methods to communicate territorial data in visual and tangible ways. The object reduces the barrier between the physical world and virtual data, and eases the understanding of faceted geographical data, enabling urban planners and citizens alike to participate in the discovery and analysis of information referring to the physical world. KW - geo visualization KW - Gegenständliche Benutzeroberfläche KW - Visualisierung KW - Stadtplanung KW - Multi-Touch-Screen KW - Browsing KW - Venedig KW - Karte Y1 - 2010 SN - 978-1-60558-934-3 U6 - https://doi.org/10.1145/1868914.1869019 SP - 743 EP - 746 PB - Association for Computing Machinery CY - New York ER - TY - CHAP A1 - Nagel, Till A1 - Duval, Erik A1 - Vande Moere, Andrew T1 - Interactive Exploration of Geospatial Network Visualization T2 - CHI EA '12 : CHI '12 Extended Abstracts on Human Factors in Computing Systems N2 - This paper presents a tabletop visualization of relations between geo-positioned locations. We developed an interactive visualization, which enables users to visually explore a geospatial network of actors. The multitouch tabletop, and the large size of the interactive surface invite users to explore the visualization in semi-public spaces. For a case study on scientific collaborations between institutions, we applied and improved several existing techniques for a walk-up-and-use system aimed at scientists for a social setting at a conference. We describe our iterative design approach, our two implemented prototypes, and the lessons learnt from their creation. We conducted user evaluation studies at the two on-location demonstrations, which provide evidence of the prototype usability and usefulness, and its support for understanding the distribution and connectivity in a geospatial network. KW - Visualisierung KW - Gegenständliche Benutzeroberfläche KW - Mensch-Maschine-Kommunikation KW - Erforschung KW - Interaktive Medien KW - Karte KW - geo-visualization KW - tabletop interfaces KW - interactive maps Y1 - 2012 SN - 978-1-4503-1016-1 U6 - https://doi.org/10.1145/2212776.2212830 SP - 557 EP - 572 PB - Association for Computing Machinery CY - New York ER -