Graph-based heuristics for recognition of machined features from a 3D solid model
Computer-Aided Design
Introduction to Solid Modeling
Introduction to Solid Modeling
Separation for boundary to CSG conversion
ACM Transactions on Graphics (TOG)
Multiple feature interpretation across domains
Computers in Industry
Removal of blends from boundary representation models
Proceedings of the seventh ACM symposium on Solid modeling and applications
Spatial Reasoning for the Automatic Recognition of Machinable Features in Solid Models
IEEE Transactions on Pattern Analysis and Machine Intelligence
Edge-Based Identification of DP-Features on Free-Form Solids
IEEE Transactions on Pattern Analysis and Machine Intelligence
A small feature suppression/unsuppression system for preparing B-rep models for analysis
Proceedings of the 2005 ACM symposium on Solid and physical modeling
An integrated approach to realize multi-resolution of B-rep model
Proceedings of the 2005 ACM symposium on Solid and physical modeling
Proceedings of the 2006 ACM symposium on Solid and physical modeling
Repairing CAD model errors based on the design history
Computer-Aided Design
Detecting design intent in approximate CAD models using symmetry
Computer-Aided Design
Transformation of a thin-walled solid model into a surface model via solid deflation
Computer-Aided Design
Feature suppression based CAD mesh model simplification
Computer-Aided Design
Automated mixed dimensional modelling from 2D and 3D CAD models
Finite Elements in Analysis and Design
Constructing regularity feature trees for solid models
GMP'06 Proceedings of the 4th international conference on Geometric Modeling and Processing
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A construction tree is a set of shape generation processes commonly produced with CAD modelers during a design process of B-Rep objects. However, a construction tree does not bring all the desired properties in many configurations: dimension modifications, idealization processes, etc. Generating a non trivial set of generative processes, possibly forming a construction graph, can significantly improve the adequacy of some of these generative processes to meet user's application needs. This paper proposes to extract generative processes from a given B-rep shape as a high-level shape description. To evaluate the usefulness of this description, finite element analyses (FEA) and particularly idealizations are the applications selected to evaluate the adequacy of additive generative processes. Non trivial construction trees containing generic extrusion and revolution primitives behave like well established CSG trees. Advantageously, the proposed approach is primitive-based, which ensures that any generative process of the construction graph does preserve the realizability of the corresponding volume. In the context of FEA, connections between idealized primitives of a construction graph can be efficiently performed using their interfaces. Consequently, generative processes of a construction graph become a high-level object structure that can be tailored to idealizations of primitives and robust connections between them.