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Hierarchical triangular mesh

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Diagram of Hierarchical Triangular Mesh (HTM). The spherical polygons are the projection of the edges of the octahedron onto the circumscribing sphere.

Hierarchical Triangular Mesh (HTM) is a kind of quad tree used for mesh generation in 3-D computer graphics and geometric data structures.[1]

Functions

  • It provides a systematic indexing method for objects localized on a sphere.[2]
  • It is an efficient method for searching different resolutions like arc seconds or hemispheres.[3]
  • It can be used as a method to subdivide the spherical surface into triangles of nearly equal shape and size.[4]

References

  1. ^ Szalay, Alexander S.; Gray, Jim; Fekete, George; Kunszt, Peter Z.; Kukol, Peter; Thakar, Ani (2007). "Indexing the Sphere with the Hierarchical Triangular Mesh". arXiv:cs/0701164.
  2. ^ Kunszt, Peter Z.; Szalay, Alexander S.; Thakar, Aniruddha R. (2001). Banday, Anthony J.; Zaroubi, Saleem; Bartelmann, Matthias (eds.). "The Hierarchical Triangular Mesh". Mining the Sky. Eso Astrophysics Symposia. Berlin, Heidelberg: Springer: 631–637. Bibcode:2001misk.conf..631K. doi:10.1007/10849171_83. ISBN 978-3-540-44665-1.
  3. ^ Szalay, Alexander S.; Gray, Jim; Fekete, George; Kunszt, Peter Z.; Kukol, Peter; Thakar, Ani (2007). "Indexing the Sphere with the Hierarchical Triangular Mesh". arXiv:cs/0701164.
  4. ^ https://www.researchgate.net/publication/226072008_The_Hierarchical_Triangular_Mesh
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