Skip to main content

On Finding Large Polygonal Voids Using Delaunay Triangulation: The Case of Planar Point Sets

  • Conference paper
Proceedings of the 22nd International Meshing Roundtable

Summary

In astronomy, the objective determination of large empty spaces or voids in the spatial distribution of galaxies is part of the characterization of the large scale structure of the universe. This paper proposes a new method to find voids that starting from local longest-edges in a Delaunay triangulation builds the largest possible empty or almost empty polygons around them. A polygon is considered a void if its area is larger than a threshold value. The algorithm is validated in 2D points with artificially generated circular and non-convex polygon voids. Since the algorithm naturally extends to 3D, preliminary results in 3D are also shown.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 169.00
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 219.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info
Hardcover Book
USD 219.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Pinchasi, R., Radoicic, R., Sharir, M.: On empty convex polygons in a planar point set. J. Comb. Theory, Ser. A 113(3), 385–419 (2006)

    Article  MathSciNet  MATH  Google Scholar 

  2. Balogh, J., González-Aguilar, H., Salazar, G.: Large convex holes in random point sets. Comput. Geom. 46(6), 725–733 (2013)

    Article  MathSciNet  MATH  Google Scholar 

  3. Nandy, S.C., Bhattacharya, B.B.: On finding an empty staircase polygon of largest area (width) in a planar point-set. Comput. Geom. Theory Appl. 26(2), 143–171 (2003)

    Article  MathSciNet  MATH  Google Scholar 

  4. El-Ad, H., Piran, T.: Voids in the Large-Scale Structure. Astrophysical Journal 491, 421 (1997)

    Article  Google Scholar 

  5. Hoyle, F., Vogeley, M.S.: Voids in the Point Source Catalogue Survey and the Updated Zwicky Catalog. Astrophysical Journal 566, 641–651 (2002)

    Article  Google Scholar 

  6. Foster, C., Nelson, L.A.: The Size, Shape, and Orientation of Cosmological Voids in the Sloan Digital Sky Survey. Astrophysical Journal 699, 1252–1260 (2009)

    Article  Google Scholar 

  7. O’Rourke, J.: Computational Geometry in C, 2nd edn. Cambridge University Press, New York (1998)

    Book  MATH  Google Scholar 

  8. Edelsbrunner, H., Kirkpatrick, D.G., Seidel, R.: On the shape of a set of points in the plane. IEEE Transactions on Information Theory 29(4), 551–558 (1983)

    Article  MathSciNet  MATH  Google Scholar 

  9. Bradford Barber, C., Dobkin, D.P., Huhdanpaa, H.: The quickhull algorithm for convex hulls. ACM Transactions on Mathematical Software 22(4), 469–483 (1996)

    Article  MATH  Google Scholar 

  10. Adelman-McCarthy, J.K., Agüeros, M.A., Allam, S.S., et al.: The Fifth Data Release of the Sloan Digital Sky Survey. Astrophysical Journal Supplement Series 172, 634–644 (2007)

    Article  Google Scholar 

  11. Colless, M., Dalton, G., Maddox, S., Sutherland, W., Norberg, P., et al.: The 2dF Galaxy Redshift Survey: spectra and redshifts. Monthly Notices of the Royal Astronomical Society 328, 1039–1063 (2001)

    Article  Google Scholar 

  12. Bond, J.R., Kofman, L., Pogosyan, D.: How filaments of galaxies are woven into the cosmic web. Nature 380, 603–606 (1996)

    Article  Google Scholar 

  13. Pan, D.C., Vogeley, M.S., Hoyle, F., Choi, Y.-Y., Park, C.: Cosmic voids in Sloan Digital Sky Survey Data Release 7. Monthly Notices of the Royal Astronomical Society 421, 926–934 (2012)

    Article  Google Scholar 

  14. Colberg, J.M., Pearce, F., Foster, C., Platen, E., Brunino, R., et al.: The Aspen-Amsterdam void finder comparison project. Monthly Notices of the Royal Astronomical Society 387, 933–944 (2008)

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Carlos Hervías .

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 2014 Springer International Publishing Switzerland

About this paper

Cite this paper

Hervías, C., Hitschfeld-Kahler, N., Campusano, L.E., Font, G. (2014). On Finding Large Polygonal Voids Using Delaunay Triangulation: The Case of Planar Point Sets. In: Sarrate, J., Staten, M. (eds) Proceedings of the 22nd International Meshing Roundtable. Springer, Cham. https://doi.org/10.1007/978-3-319-02335-9_16

Download citation

  • DOI: https://doi.org/10.1007/978-3-319-02335-9_16

  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-02334-2

  • Online ISBN: 978-3-319-02335-9

  • eBook Packages: EngineeringEngineering (R0)

Publish with us

Policies and ethics