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Cutting Tetrahedra: Affordances and Limitations of Using Virtual Reality Visualization for Tetrahedral Cutting
KTH, School of Computer Science and Communication (CSC).
2017 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
Tetraederskärning : Fördelar och begränsningar med att använda virtual reality för att visualisera skärning av tetraeder (Swedish)
Abstract [en]

Finite element method researchers aim to create algorithms for optimally cutting complex 3D shapes into several tetrahedra for computational efficiency in simulations. It is difficult to create a mental representation of the 3D shapes as they increase in complexity. Our hypothesis is that a virtual reality (VR) visualization could help with creating this mental 3D representation. In this thesis, a desktop tool using a 2D monitor and a virtual reality tool were compared in a controlled within-subject user study. The findings show that VR gave a better understanding of the 3D objects. Participants reported VR to be more intuitive and enjoyable than the 2D monitor. However, it did not improve the time it took to complete the study tasks and, although it made the users perceive that they were more accurate, the observational data suggests that more accurate cuts were made using the desktop tool.

Abstract [sv]

Forskare försöker skapa algoritmer för att optimalt skära komplexa 3D former i flera tetraeder för att simplifiera simuleringar. Det är svårt att skapa en mental representation av 3D figurerna när dom blir mer komplexa. En virtual reality visualisering skulle kunna hjälpa till att skapa denna mentala 3D representation. Genom att skapa ett verktyg för en dator med 2D monitor och ett verktyg som använder VR och därefter jämföra dem i en kontrollerad användarstudie med upprepade försök, visade det sig att VR gav en bättre förståelse av 3D objekten. Det var dessutom mer intuitivt och njutbart. Dock minskade det inte tiden som behövdes för att avsluta studiens uppgifter och trots att användarna uppfattade att dom var mer pricksäkra i VR så påvisade den observerade datan att användare gjorde mer träffsäkra skärningar i verktyget utan VR.

Place, publisher, year, edition, pages
2017.
Keywords [en]
virtual reality, tetrahedra, 3d-cutting, spatial comprehension
National Category
Human Computer Interaction
Identifiers
URN: urn:nbn:se:kth:diva-211544OAI: oai:DiVA.org:kth-211544DiVA, id: diva2:1129947
Educational program
Master of Science in Engineering - Computer Science and Technology
Supervisors
Examiners
Available from: 2017-09-20 Created: 2017-08-07 Last updated: 2022-06-27Bibliographically approved

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
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  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
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  • nn-NO
  • nn-NB
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  • Other locale
More languages
Output format
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  • asciidoc
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