### Abstract

A straight-line realization of (or a bar-and-joint framework on) graph G in ^{Rd} is said to be globally rigid if it is congruent to every other realization of G with the same edge lengths. A graph G is called globally rigid in ^{Rd} if every generic realization of G is globally rigid. We give an algorithm for constructing a globally rigid realization of globally rigid graphs in ^{R2}. If G is triangle-reducible, which is a subfamily of globally rigid graphs that includes Cauchy graphs as well as Grünbaum graphs, the constructed realization will also be infinitesimally rigid. Our algorithm relies on the inductive construction of globally rigid graphs which uses edge additions and one of the Henneberg operations. We also show that vertex splitting, which is another well-known operation in combinatorial rigidity, preserves global rigidity in ^{R2}.

Original language | English |
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Pages (from-to) | 511-521 |

Number of pages | 11 |

Journal | Computational Geometry: Theory and Applications |

Volume | 42 |

Issue number | 6-7 |

DOIs | |

Publication status | Published - Aug 1 2009 |

### Keywords

- Gale transform
- Globally rigid framework
- Rigid graph
- Vertex split

### ASJC Scopus subject areas

- Computer Science Applications
- Geometry and Topology
- Control and Optimization
- Computational Theory and Mathematics
- Computational Mathematics

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## Cite this

*Computational Geometry: Theory and Applications*,

*42*(6-7), 511-521. https://doi.org/10.1016/j.comgeo.2008.09.007