Article · Wikipedia archive · Last revised Jun 14, 2026

Greedy triangulation

The greedy triangulation is a method to compute a polygon triangulation or a point set triangulation using a greedy algorithm, which adds edges one by one to the solution in strict increasing order by length, with the condition that an edge cannot cut a previously inserted edge.

Last revised
Jun 14, 2026
Read time
≈ 1 min
Length
157 w
Citations
2
Source
Greedy triangulation
Polygon Greedy triangulation steps
Polygon Greedy triangulation steps. On each step a new edge (red) is added joining the nearest pair of vertex, without crossing a previously edge
ClassSearch algorithm
Data structure
Worst-case performance O ( | V | log | V | ) {\displaystyle O(|V|\cdot \log |V|)}
Best-case performance O ( | V | ) {\displaystyle O(|V|)}

The greedy triangulation is a method to compute a polygon triangulation or a point set triangulation using a greedy algorithm, which adds edges one by one to the solution in strict increasing order by length, with the condition that an edge cannot cut a previously inserted edge.12

References

References

  1. J. Loera, J. Rambau and F. Santos (2010), Triangulations: Structures and Algorithms (2nd revised ed.), Springer-Verlag, ISBN 9783642129711 Chapter 3: Polygon Triangulation: pp.103.
  2. Mark de Berg, Marc van Kreveld, Mark Overmars, and Otfried Schwarzkopf (2000), Computational Geometry (2nd revised ed.), Springer-Verlag, ISBN 3-540-65620-0{{citation}}: CS1 maint: multiple names: authors list (link)