RagRug: A Toolkit for Situated Analytics

Fleck, Philipp; Calepso, Aimee Sousa; Hubenschmid, Sebastian; Sedlmair, Michael; Schmalstieg, Dieter

doi:10.1109/tvcg.2022.3157058

Cited by 32 publications

(13 citation statements)

References 77 publications

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“…This platform uses the HoloLens application as a client to a central server application and provides different training scenarios. We did not have the option of using a toolkit such as RagRug [11] or DXR [26], as our approach needed to not require significant changes to the existing architecture and code base and be flexible enough to seamlessly integrate into other scenarios. Furthermore, trainees need to interact in the real spaces, unobstructed by AR visualizations.…”

Section: Requirementsmentioning

confidence: 99%

Comparison of Spatial Visualization Techniques for Radiation in Augmented Reality

McGee,

McCall,

Baixauli

2024

Proceedings of the CHI Conference on Human Factors in Computing Systems

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Figure 1: Three different approaches to visually encoding radiation in the physical environment around the user. In this composite image there are three Augmented Reality radiation sources, the barrel (left), the small suitcase (middle) and the laptop on the table (right). At the leftmost side there is no visualization of the radiation, moving right, a banded visualization coloring the spatial awareness mesh is used, next a hexagon is used as a stencil, to allow better visibility of the real-world objects. Finally, an arrow-based visualization is shown illustrating the flow of radiation away from the sources.

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Section: Requirementsmentioning

confidence: 99%

Comparison of Spatial Visualization Techniques for Radiation in Augmented Reality

McGee,

McCall,

Baixauli

2024

Proceedings of the CHI Conference on Human Factors in Computing Systems

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“…Two further problems arise when visualising embodied information in augmented space. First, most traditional authoring tools are focused on 2D visualisations, and new toolkits such as DXR [99] and RagRug [100] have only provided the basis to display 2D visualisations of data in 3D. Second, the benefit of the third dimension is difficult to grasp and even more difficult to implement.…”

Section: Situated Analyticsmentioning

confidence: 99%

“…Second, the benefit of the third dimension is difficult to grasp and even more difficult to implement. Most modern immersive analytics actually rely on embedding 2D displays into the real world [17,[99][100][101]. Visualisations in 3D are typically derived from the previous 2D media, but there is a trend towards exploring new possibilities.…”

Section: Situated Analyticsmentioning

confidence: 99%

“…The FTs concept captures the situation where the DT is queried from within the PT allowing for a fused in situ representation. A medium is used to connect the PT with the DT through the display of Situated Analytics [100]. Possible media range from tablet-based (AR) and HoloLens (MR) to SOs (AV).…”

Section: The Fused Twins Conceptmentioning

confidence: 99%

“…Some of the research explicitly mentions the DT approach or a Situated Analytics approach but often simply uses the available technology to demonstrate that their problem can be addressed [428,430,431], implicitly developing a DT and applying Situated Analytics. [18] 2009 * -History [431] 2013 * --City Information (concept) [433] 2014 * * * * * Shopping [434] 2015 * * -IoT device interaction [425] 2016 -* City Information [435] 2016 * * -Shopping [436] 2018 * * - Smart Campus [437] 2018 Evacuation [438] 2018 * ---Medicine [439] 2018 --Facility Management [440] 2018 -Rehabilitation [441] 2019 * -IoT device visualisation [426] 2019 ---Seat Selection [442] 2020 * * -Equipment Maintenance [443] 2020 * --In situ visualisation [101] 2020 * * * Education [444] 2020 * Training & Assistance [445] 2020 * * -* Firefighting [430] 2021 ---General [17] 2021 * IoT device interaction [364] 2021 -General [100] 2022 * Note: * Partially implemented or insufficient information.…”

Section: The Analytical Environment Of the Digital Twin-models And Se...mentioning

confidence: 99%

See 2 more Smart Citations

The Hitchhiker’s Guide to Fused Twins: A Review of Access to Digital Twins In Situ in Smart Cities

et al. 2022

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Smart Cities already surround us, and yet they are still incomprehensibly far from directly impacting everyday life. While current Smart Cities are often inaccessible, the experience of everyday citizens may be enhanced with a combination of the emerging technologies Digital Twins (DTs) and Situated Analytics. DTs represent their Physical Twin (PT) in the real world via models, simulations, (remotely) sensed data, context awareness, and interactions. However, interaction requires appropriate interfaces to address the complexity of the city. Ultimately, leveraging the potential of Smart Cities requires going beyond assembling the DT to be comprehensive and accessible. Situated Analytics allows for the anchoring of city information in its spatial context. We advance the concept of embedding the DT into the PT through Situated Analytics to form Fused Twins (FTs). This fusion allows access to data in the location that it is generated in in an embodied context that can make the data more understandable. Prototypes of FTs are rapidly emerging from different domains, but Smart Cities represent the context with the most potential for FTs in the future. This paper reviews DTs, Situated Analytics, and Smart Cities as the foundations of FTs. Regarding DTs, we define five components (physical, data, analytical, virtual, and Connection Environments) that we relate to several cognates (i.e., similar but different terms) from existing literature. Regarding Situated Analytics, we review the effects of user embodiment on cognition and cognitive load. Finally, we classify existing partial examples of FTs from the literature and address their construction from Augmented Reality, Geographic Information Systems, Building/City Information Models, and DTs and provide an overview of future directions.

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Low-dimensional data-based surrogate model of a continuum-mechanical musculoskeletal system based on non-intrusive model order reduction

et al. 2023

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Over the last decades, computer modeling has evolved from a supporting tool for engineering prototype design to an ubiquitous instrument in non-traditional fields such as medical rehabilitation. This area comes with unique challenges, e.g. the complex modeling of soft tissue or the analysis of musculoskeletal systems. Conventional modeling approaches like the finite element (FE) method are computationally costly when dealing with such models, limiting their usability for real-time simulation or deployment on low-end hardware, if the model at hand cannot be simplified without losing its expressiveness. Non-traditional approaches such as surrogate modeling using data-driven model order reduction are used to make complex high-fidelity models more widely available regardless. They often involve a dimensionality reduction step, in which the high-dimensional system state is transformed onto a low-dimensional subspace or manifold, and a regression approach to capture the reduced system behavior. While most publications focus on one dimensionality reduction, such as principal component analysis (PCA) (linear) or autoencoder (nonlinear), we consider and compare PCA, kernel PCA, autoencoders, as well as variational autoencoders for the approximation of a continuum-mechanical system. In detail, we demonstrate the benefits of the surrogate modeling approach on a complex musculoskeletal system of a human upper-arm with severe nonlinearities and physiological geometry. We consider both, the model’s deformation and the internal stress as the two main quantities of interest in a FE context. By doing so we are able to create computationally low-cost surrogate models which capture the system behavior with high approximation quality and fast evaluations.

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RagRug: A Toolkit for Situated Analytics

Cited by 32 publications

References 77 publications

Comparison of Spatial Visualization Techniques for Radiation in Augmented Reality

Comparison of Spatial Visualization Techniques for Radiation in Augmented Reality

The Hitchhiker’s Guide to Fused Twins: A Review of Access to Digital Twins In Situ in Smart Cities

Low-dimensional data-based surrogate model of a continuum-mechanical musculoskeletal system based on non-intrusive model order reduction

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