dome1

Usage

Overview

DOME is a program which calculates the properties of a geodesic dome symmetry triangle. DOME calculates spherical vertex coordinates, symmetry triangle topological abundance, and chord factors. DOME supports class I (alternate) and class II (triacon) breakdowns for Icosahedron, Octahedron and Tetrahedron polyhedron types. DOME also supports "Buckyball" formations as well as elliptical geodesics & geodesic parabolic dishes.

Options

-fnnn

Set geodesic frequency to nnn. The default is 2.

-cn

Set class type to n (1 or 2). The default is 1.

-px

Set polyhedron type to x, where x is i for icosahedron (default), o for octahedron, or t for tetrahedron.

-s

Generate full sphere data (default: symmetry triangle).

-sb

Generate a buckyball. Must use class I with frequency equal to a multiple of three.

-en

Enable elliptical formation (default: n=1 for a circle). n is the elliptical eccentricity (n > 0.0 and n < 2.0).

-v

Verbose data display at run-time.

-dn

Enable paraboloid and specify focus location.

-rn

Set outer radius of paraboloid.

-w

Enable wire-frame VRML or DXF output (default: face data).

-h

Displays a help screen.

filename.xxx is a standard DOS filename, where xxx is DXF, DAT, WRL, POV or PRN.

Examples

A 5 frequency, class I, icosahedron sphere in DXF format (note class I and icosa are the defaults):

dome -f5 myfile.dxf

A 3 frequency buckyball in POV format:

dome -f3 -sb myfile.pov

A 10 frequency, class II, octahedron symmetry triangle in DXF format:

dome -f10 -c2 -po myfile.dxf