IEEE Computer Graphics and Applications
Algorithms for polynomials in Bernstein form
Computer Aided Geometric Design
Using tolerances to guarantee valid polyhedral modeling results
SIGGRAPH '90 Proceedings of the 17th annual conference on Computer graphics and interactive techniques
Representations for Rigid Solids: Theory, Methods, and Systems
ACM Computing Surveys (CSUR)
Robust Set Operations on Polyhedral Solids
IEEE Computer Graphics and Applications
A topology-based approach for shell-closure
Selected and Expanded Papers from the IFIP TC5/WG5.2 Working Conference on Geometric Modeling for Product Realization
Polygon overlay in prolog
Consistent solid and boundary representations from arbitrary polygonal data
Proceedings of the 1997 symposium on Interactive 3D graphics
Converting sets of polygons to manifold surfaces by cutting and stitching
Proceedings of the conference on Visualization '98
Cutting and Stitching: Converting Sets of Polygons to Manifold Surfaces
IEEE Transactions on Visualization and Computer Graphics
A decomposition-based approach to layered manufacturing
Computational Geometry: Theory and Applications
STEP-based quality diagnosis of shape data of product models for collaborative e-engineering
Computers in Industry - Special issue: Advanced computer support of engineering and service processes of virtual enterprises
A fundamental tool path planning problem for circles in layered manufacturing
Integrated Computer-Aided Engineering
Fixing geometric errors on polygonal models: a survey
Journal of Computer Science and Technology
STEP-based quality diagnosis of shape data of product models for collaborative e-engineering
Computers in Industry - Special issue: Advanced computer support of engineering and service processes of virtual enterprises
Geometric interoperability via queries
Computer-Aided Design
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High quality CAD models are essential to the successful utilization of automated manufacturing technologies known as rapid prototyping, solid freeform fabrication, and layered manufacturing. Such CAD models should, at the very least, describe solids that mathematically represent regularized sets. This paper shows how CAD models described by a boundary representation composed of triangular facets, and, in particular, those described in the .STL file format, the de facto rapid prototyping industry standard, can be cleared of zero-volume parts and certain needless walls and structures which violate the definition of a regularized set.Keywords:.STL file format, layered manufacturing, solid freeform fabrication, rapid prototyping, solid modeling, geometric modeling, automatic CAD model repair