A well-known Tutte's theorem claims that every 3-connected planar graph has a convex embedding into the plane. Tutte's arguments also show that, moreover, for every nonseparating cycle C of a 3-connected graph G, there exists a convex embedding of G such that C is a boundary of the outer face in thi
On-line Planar Graph Embedding
โ Scribed by Roberto Tamassia
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 504 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0196-6774
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โฆ Synopsis
We present a dynamic data structure for the incremental construction of a planar embedding of a planar graph. The data structure supports the following ลฝ . operations: i testing if a new edge can be added to the embedding without ลฝ . introducing crossing; and ii adding vertices and edges. The time complexity of ลฝ . ลฝ . each operation is O log n amortized for edge insertion , and the memory space ลฝ . and preprocessing time are O n , where n is the current number of vertices of the graph.
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