This book contains the formulas for calculating Class 1 and Class 2 geodesic domes.
The xdome package, in the ibiblio.org Linux archive, is a series of X Windows programs based on the math in Kenner's book, cited above. It is a rewrite of the gcdome package. xdome also includes a batch program to calculate strut lengths and their locations on a geodesic dome of any size and model.
The dome package, available at the Debian website, is a C++ batch program that produces a list of vertices and struts in a geodesic dome or a geodesic parabolic dish, as input to a graphics program, like a Povray rendering program.
Aviation Formulary V1.25
by
Ed Williams
(e-mail address)
Last update: 9/29/1999
This handbook contains the radius of an icosahedron based on its side, and useful properties of a pentagon. These properties are useful for calculating the maximum vertex angle theta of a meridian, 63.4349 degrees from north, when phi = 0 or 72 degrees east.
Here is a comparison of gcdome and a Class 1 Icosahedron dome at a frequency of 32 and a radius of 100:
Chord Length | gcdome | Class 1 Icosahedron |
---|---|---|
Number of chords | 1584 | 1584 |
Minimum | 3.32559 | 2.84331 |
Maximum | 4.79520 | 4.13379 |
Mean | 3.77408 | 3.75019 |
Stdev | 0.28290 | 0.27784 |
R. Kowalczuk: Geodesic Domes, Beauty of Unsquared World
Richard Hawkins' Digital Archive: Synergetic Geometry and Miscellaneous
Table of Contents
Introduction
Models
How to Use Gcdome
Gcdome Examples
Copying