CAD data repair based on virtual topology

Alla Sheffer, Ted Blacker, Michel Bercovier

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Automatic and rapid transfer of CAD data among differentCAD systems or engineering applications is of crucial importancefor the acceleration of the product development processes. Geometric models generated by CAD systems often require multipleediting and adjustment within the receiving system. The ma jorreason for this is that models generated by CAD systems oftencontain errors in their representation, such as cracks, duplication or overlaps. Such errors often hamper further processinglike finite element analysis, rapid prototyping, etc.In our previous work the concept of virtual topology was introduced which permits construction of valid topological modelswithout prior geometrical correction. The virtual B-Rep provides a consistent geometric description of the model which issuffcient for many engineering applications. However providingan exact geometric description of the model if often desirable forfurther processing purposes.In this work a new algorithm for repair of CAD models geometry is described. The algorithm is based on the model topology provided by the virtual B-Rep. The generated geometricdescription consists of the topological connectivity informationon the model and of a triangular conformal faceting of the modelfaces envelope.

Original languageEnglish
Title of host publication24th Design Automation Conference
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791880326
DOIs
StatePublished - 1998
Externally publishedYes
EventASME 1998 Design Engineering Technical Conferences, DETC 1998 - Atlanta, United States
Duration: 13 Sep 199816 Sep 1998

Publication series

NameProceedings of the ASME Design Engineering Technical Conference
Volume2

Conference

ConferenceASME 1998 Design Engineering Technical Conferences, DETC 1998
Country/TerritoryUnited States
CityAtlanta
Period13/09/9816/09/98

Bibliographical note

Publisher Copyright:
© 1998 by ASME.

Fingerprint

Dive into the research topics of 'CAD data repair based on virtual topology'. Together they form a unique fingerprint.

Cite this