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Physical Sciences and Mathematics Commons™
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Articles 1 - 4 of 4
Full-Text Articles in Physical Sciences and Mathematics
Designing Improved Sediment Transport Visualizations, Chris Englert, Thomas J. Butkiewicz, Larry A. Mayer, Val E. Schmidt, Jonathan Beaudoin, Arthur Trembanis, Carter Duval
Designing Improved Sediment Transport Visualizations, Chris Englert, Thomas J. Butkiewicz, Larry A. Mayer, Val E. Schmidt, Jonathan Beaudoin, Arthur Trembanis, Carter Duval
Center for Coastal and Ocean Mapping
Monitoring, or more commonly, modeling of sediment transport in the coastal environment is a critical task with relevance to coastline stability, beach erosion, tracking environmental contaminants, and safety of navigation. Increased intensity and regularity of storms such as Superstorm Sandy heighten the importance of our understanding of sediment transport processes. A weakness of current modeling capabilities is the ability to easily visualize the result in an intuitive manner. Many of the available visualization software packages display only a single variable at once, usually as a two-dimensional, plan-view cross-section. With such limited display capabilities, sophisticated 3D models are undermined in both …
Multi-Touch 3d Exploratory Analysis Of Ocean Flow Models, Thomas J. Butkiewicz, Colin Ware
Multi-Touch 3d Exploratory Analysis Of Ocean Flow Models, Thomas J. Butkiewicz, Colin Ware
Center for Coastal and Ocean Mapping
Modern ocean flow simulations are generating increasingly complex, multi-layer 3D ocean flow models. However, most researchers are still using traditional 2D visualizations to visualize these models one slice at a time. Properly designed 3D visualization tools can be highly effective for revealing the complex, dynamic flow patterns and structures present in these models. However, the transition from visualizing ocean flow patterns in 2D to 3D presents many challenges, including occlusion and depth ambiguity. Further complications arise from the interaction methods required to navigate, explore, and interact with these 3D datasets. We present a system that employs a combination of stereoscopic …
Exploring Causal Influences, Eric M. Neufeld, Sonje K. Kristtorn, Qingjuan Guan, Manon Sanscartier, Colin Ware
Exploring Causal Influences, Eric M. Neufeld, Sonje K. Kristtorn, Qingjuan Guan, Manon Sanscartier, Colin Ware
Center for Coastal and Ocean Mapping
Recent data mining techniques exploit patterns of statistical independence in multivariate data to make conjectures about cause/effect relationships. These relationships can be used to construct causal graphs, which are sometimes represented by weighted node-link diagrams, with nodes representing variables and combinations of weighted links and/or nodes showing the strength of causal relationships. We present an interactive visualization for causal graphs (ICGs), inspired in part by the Influence Explorer. The key principles of this visualization are as follows: Variables are represented with vertical bars attached to nodes in a graph. Direct manipulation of variables is achieved by sliding a variable value …
View Direction, Surface Orientation And Texture Orientation For Perception Of Surface Shape, Colin Ware, Graeme Sweet
View Direction, Surface Orientation And Texture Orientation For Perception Of Surface Shape, Colin Ware, Graeme Sweet
Center for Coastal and Ocean Mapping
Textures are commonly used to enhance the representation of shape in non-photorealistic rendering applications such as medical drawings. Textures that have elongated linear elements appear to be superior to random textures in that they can, by the way they conform to the surface, reveal the surface shape. We observe that shape following hache marks commonly used in cartography and copper-plate illustration are locally similar to the effect of the lines that can be generated by the intersection of a set of parallel planes with a surface. We use this as a basis for investigating the relationships between view direction, texture …