Coupling Terrain and Building Database Information for Ray-Tracing Applications

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dc.contributor.authorFontán, F.P.
dc.contributor.authorRuíz S., O.E.
dc.contributor.authorPeña, S.
dc.contributor.departmentUniversidad EAFIT. Departamento de Ingeniería Mecánicaspa
dc.contributor.researchgroupLaboratorio CAD/CAM/CAEspa
dc.date.accessioned2016-11-30T15:21:32Z
dc.date.available2016-11-30T15:21:32Z
dc.date.issued2003
dc.description.abstractIn this paper a methodology for the combination and integration into a single data base of terrain and building data is presented -- This study is justified if ray-tracing techniques are to be used in propagation and channel modeling studies -- Usually terrain is available in grid or elevation form while building information is normally facet-oriented -- Ray-tracing (RT) techniques deal with flat facets and straight edges, if possible in triangular format -- To allow the use of RT on urban areas over irregular terrain a common format made up of facets and edges is therefore needed -- In this article, the procedure to accomplish this data homogeneity is presented -- It is assumed that terrain data is available in two formats: a) grid elevation and b) contour or iso-altitude lines -- Building data is assumed available in plant, polygonal planar contour form, a primitive and yet widely used format which is yet to be transformed into 3D entities -- The geometric modeling of joint terrain and building data is further difficuledt because union of surface objects (even after achieving a unified format) is undefined from the point of view of 3D boolean operationseng
dc.formatapplication/pdfeng
dc.identifier.citation@Inproceedings{2003_Ruiz_Usage, title={Usage of 2D region similarity for surface reconstrucion from planar samples. S.I.A.M.}, author={Ruiz, O. and Cadavid, C. and Granados, M. and Vasquez, E. and Pena, S.}, booktitle={Simposium on Industry-Applied Mathematics, Conference on Geometric Design and Computing }, address={Washington, USA}, year={2003}, }spa
dc.identifier.urihttp://hdl.handle.net/10784/9784
dc.language.isoengspa
dc.relation.ispartofSimposium on Industry-Applied Mathematics, Conference on Geometric Design and Computing, 2003spa
dc.rights.accessrightsinfo:eu-repo/semantics/closedAccesseng
dc.rights.localAcceso cerradospa
dc.subject.keywordDatabaseseng
dc.subject.keywordDiffractioneng
dc.subject.keywordReflection (physics)eng
dc.subject.keywordStochastic processeseng
dc.subject.keywordTopologyeng
dc.subject.keywordImage processingeng
dc.subject.keywordDesign imagingeng
dc.subject.keywordModelado geométricospa
dc.subject.keywordGeometría computacionalspa
dc.subject.keywordSistemas CAD/CAMspa
dc.subject.keywordRay-Tracing (RT)spa
dc.subject.lembBASES DE DATOSspa
dc.subject.lembDIFRACCIÓNspa
dc.subject.lembREFLEXIÓN (FÍSICA)spa
dc.subject.lembPROCESOS ESTOCÁSTICOSspa
dc.subject.lembTOPOLOGÍAspa
dc.subject.lembOPERADORES BOOLEANOSspa
dc.subject.lembPROCESAMIENTO DE IMÁGENESspa
dc.subject.lembIMAGEN TRIDIMENSIONAL EN DISEÑOspa
dc.titleCoupling Terrain and Building Database Information for Ray-Tracing Applicationseng
dc.typeinfo:eu-repo/semantics/conferencePapereng
dc.typeconferencePapereng
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.typepublishedVersioneng
dc.type.localDocumento de conferenciaspa

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