Angular Rigidity in 3D: Combinatorial Characterizations and Algorithms
This document has been relocated to https://scholarworks.smith.edu/csc_facpubs/229/
Abstract
Constraint-based CAD software, used by engineers to design sophisticated mechanical systems, relies on a wide range of geometrical constraints. In this paper we focus on one special case: angular constraints in 3D. We give a complete combinatorial characterization for generic minimal rigidity in two new models: line- plane-and-angle and body-and-angle structures. As an immediate consequence, we obtain efficient algorithms for analyzing angular rigidity.
This paper has been withdrawn.