Parameter Aligned Surface Trimming

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dc.contributor.advisorSamavati, Faramarz F.
dc.contributor.advisorPrusinkiewicz, Przemyslaw
dc.contributor.authorHalbert, Shannon
dc.contributor.committeememberCosta Sousa, Mario
dc.contributor.committeememberYanushkevich, Svetlana
dc.date.accessioned2018-01-25T19:11:41Z
dc.date.available2018-01-25T19:11:41Z
dc.date.issued2018-01-18
dc.description.abstractParametric surfaces are widely used for surface modelling because of their easy editing and fast rendering properties. However, trimming these models is not as straightforward as it is with other surface types and doing so often results in the loss of some or all of the parametric properties of the original surface. This thesis introduces a new representation for trimmed parametric surfaces which preserves the parametric properties of the surface. Given a set of trimming curves in the parameter space of a surface, this method defines local subspaces aligned to the global parameter axes which surround groups of trimming curves. When multiple trimming curves are present, intersecting subspaces are further segmented using local Voronoi curve diagrams, allowing any shared subspace to be distributed equally between the trimming curves. Transition patches are then used to define local subspaces around the trimming curves each with their own parametrization that accommodates the trimmed edges. Coons patches are then created to map these local spaces to the global parameter space during rendering. This allows for high quality interpolation of the trimmed edges without affecting the parametric properties or continuity of the trimmed surface.en_US
dc.identifier.citationHalbert, S. (2018). Parameter Aligned Surface Trimming (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/5417en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/5417
dc.identifier.urihttp://hdl.handle.net/1880/106336
dc.language.isoeng
dc.publisher.facultyGraduate Studies
dc.publisher.facultyScience
dc.publisher.institutionUniversity of Calgaryen
dc.publisher.placeCalgaryen
dc.rightsUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.
dc.subjectComputer Graphics
dc.subjectNURBS
dc.subjectParametric Surface Trimming
dc.subject.classificationComputer Scienceen_US
dc.titleParameter Aligned Surface Trimming
dc.typemaster thesis
thesis.degree.disciplineComputer Science
thesis.degree.grantorUniversity of Calgary
thesis.degree.nameMaster of Science (MSc)
ucalgary.item.requestcopytrue
ucalgary.thesis.checklistI confirm that I have submitted all of the required forms to Faculty of Graduate Studies.en_US
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