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Stella (software)

This article includes a list of references, related reading or external links, but its sources remain unclear because it lacks inline citations. Please help to improve this article by introducing more precise citations.(March 2012) ()
Not to be confused with STELLA (programming language).

Stella, a computer program available in three versions (Great Stella, Small Stella and Stella4D), was created by Robert Webb of Australia. The programs contain a large library of polyhedra which can be manipulated and altered in various ways.

Screenshot from Great Stella software, showing the stellation diagram and net for the compound of five tetrahedra
Screenshot from Stella4D, looking at the truncated tesseract in perspective and its net, truncated cube cells hidden.

Contents

Polyhedra in Great Stella's library include the Platonic solids, the Archimedean solids, the Kepler-Poinsot solids, the Johnson solids, some Johnson Solid near-misses, numerous compounds including the uniform polyhedra, and other polyhedra too numerous to list here. Operations which can be performed on these polyhedra include stellation, faceting, augmentation, dualization (also called "reciprocation"), creating convex hulls, and others.

All versions of the program enable users to print nets for polyhedra. These nets may then be assembled into actual three-dimensional polyhedral models of great beauty and complexity.

In 2007, a Stella4D version was added, allowing the generation and display of four-dimensional polytopes (polychora), including a library of all convex uniform polychora, and all currently known nonconvex star polychora, as well as the uniform duals. They can be selected from a library or generated from user created polyhedral vertex figure files.

Stella provides a configurable workspace comprising several panels. Once a model has been selected from the range available, different views of it may be displayed in each panel. These views can also include measurements, symmetries and unfolded nets.

A variety of operations may be performed on any polyhedron. In 3D these include: stellation, faceting, augmentation, excavation, drilling and dualising.

Other features include spring network relaxation, generation of the convex hull, and generation of cupolaic blends and related figures.

  • v1.0 – 20 August 2001 – First release of Stella
    • v1.1 – 14 January 2002
  • v2.0 – 12 September 2002
    • v2.8.7 – 16 November 2004
  • v3.0 – 12 June 2005
    • v3.5.1 – 10 May 2006
  • v4.0 – 13 March 2007 – (Including new "Stella4D")
    • v4.4 – 11 January 2008
  • v5.0 – 30 September 2012
    • v5.4 – 10 May 2014
  • Bedford, Mike (August 2008). "Great Stella software". PC Plus (271). pp. 46–47. This is quite a sophisticated program for those who want to go beyond the basics.
  • Ms. Megabyte (4 February 2003). Ms Megabyte presented Stella. Today.
  • Webb, Robert. "Stella: Polyhedron Navigator". Symmetry: Culture and Science. 11 (1–4). pp. 231–268, 2000. (Note: journal was back-dated. Paper actually written 2003)
  • Webb, Robert (2002). "Stella Models". Symmetry: Culture and Science. 13 (3–4). pp. 391–399. (Note: journal was back-dated. Paper actually written 2004)
Wikimedia Commons has media related to Stella.

Stella (software)
Stella software Language Watch Edit This article includes a list of references related reading or external links but its sources remain unclear because it lacks inline citations Please help to improve this article by introducing more precise citations March 2012 Learn how and when to remove this template message Not to be confused with STELLA programming language Stella a computer program available in three versions Great Stella Small Stella and Stella4D was created by Robert Webb of Australia The programs contain a large library of polyhedra which can be manipulated and altered in various ways Screenshot from Great Stella software showing the stellation diagram and net for the compound of five tetrahedra Screenshot from Stella4D looking at the truncated tesseract in perspective and its net truncated cube cells hidden Contents 1 Polyhedra 2 Stella4D 3 Features 4 Release history 5 References 6 Further reading 7 External linksPolyhedra EditPolyhedra in Great Stella s library include the Platonic solids the Archimedean solids the Kepler Poinsot solids the Johnson solids some Johnson Solid near misses numerous compounds including the uniform polyhedra and other polyhedra too numerous to list here Operations which can be performed on these polyhedra include stellation faceting augmentation dualization also called reciprocation creating convex hulls and others All versions of the program enable users to print nets for polyhedra These nets may then be assembled into actual three dimensional polyhedral models of great beauty and complexity Stella4D EditIn 2007 a Stella4D version was added allowing the generation and display of four dimensional polytopes polychora including a library of all convex uniform polychora and all currently known nonconvex star polychora as well as the uniform duals They can be selected from a library or generated from user created polyhedral vertex figure files Features EditStella provides a configurable workspace comprising several panels Once a model has been selected from the range available different views of it may be displayed in each panel These views can also include measurements symmetries and unfolded nets A variety of operations may be performed on any polyhedron In 3D these include stellation faceting augmentation excavation drilling and dualising Other features include spring network relaxation generation of the convex hull and generation of cupolaic blends and related figures Release history Editv1 0 20 August 2001 First release of Stella v1 1 14 January 2002 v2 0 12 September 2002 v2 8 7 16 November 2004 v3 0 12 June 2005 v3 5 1 10 May 2006 v4 0 13 March 2007 Including new Stella4D v4 4 11 January 2008 v5 0 30 September 2012 v5 4 10 May 2014References EditBedford Mike August 2008 Great Stella software PC Plus 271 pp 46 47 This is quite a sophisticated program for those who want to go beyond the basics Ms Megabyte 4 February 2003 Ms Megabyte presented Stella Today Webb Robert Stella Polyhedron Navigator Symmetry Culture and Science 11 1 4 pp 231 268 2000 Note journal was back dated Paper actually written 2003 Further reading EditWebb Robert 2002 Stella Models Symmetry Culture and Science 13 3 4 pp 391 399 Note journal was back dated Paper actually written 2004 External links EditWikimedia Commons has media related to Stella Official website Retrieved from https en wikipedia org w index php title Stella software amp oldid 983593956, wikipedia, wiki, book,

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