CONWAY(1)

✨ NAME ✨

CONWAY(1) bestie!! This is User Commands energy, and conway is literally Conway Notation transformations. That’s the whole name, no cap 💅

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🎀 SYNOPSIS 🎀

conway [options] [Conway Notation string] [input_file]

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🦋 DESCRIPTION 🦋

okay so Conway Notation uses algorithms by George W. Hart (http://www.georgehart.com) — the polyhedra lore is here: http://www.georgehart.com/virtual-polyhedra/conway_notation.html ✨

Antiprism Extensions: further operations added. See http://en.wikipedia.org/wiki/Conway_polyhedron_notation and http://antitile.readthedocs.io/en/latest/conway.html.

It reads a polyhedron from a file in OFF format. If input_file is not given and no seed polyhedron is given in the notation string then the program reads from standard input. Standard input said hi 👋

💅 Options 💅

• -h, --help — this help message (run off_util -H help for general help)
• --version — version information
• -H — Conway Notation detailed help. seeds and operator descriptions
• -v — verbose output
• -z <nums> — number of iterations between status reports (implies termination check) (0 for final report only, -1 for no report), optionally followed by a comma and the number of iterations between termination checks (0 for report checks only) (default: -1,1)
• -l <lim> — minimum distance change to terminate planarization, as negative exponent (default: 12 giving 1e-12)

WARNING: high values can cause non-terminal behaviour. Use -i

• -o <file> — write output to file (default: write to standard output)

🧚 Conway Notation Options 🧚

• -s — apply Conway Notation string substitutions
• -g — use George Hart algorithms (sets -s)
• -c <op=s> — user defined operation strings in the form of op,string
  • op can be any operation letter not currently in use. two character operations can be as alpha# e.g z#
  • string can be any operations.
  • More than one <op=s> can be used
  • Examples: -c x=kt,y=tk,a#=dwd or -c x=kt -c y=tk -c a#=dwd
• -t — tile mode. when input is a 2D tiling. unsets -g; set if seed of Z is detected
• -r — execute operations in reverse order (left to right)
• -u — make final product be of averge unit edge length
• -p <opt> — planarize method (default: c, forced to x for open geometry)
  • b - base/dual (reciprocate on face centroids magnitude squared)
  • c - canonicalize
  • x - none
• -i <itrs> — maximum planarize iterations. -1 for unlimited (default: 1000)

WARNING: unstable models may not finish unless -i is set

🎨 Coloring Options 🎨 (run off_util -H color for help on color formats)

keyword: none - sets no color

• -F <col> — color the faces according to: (default: n)
  • a color value - apply to all faces
  • n - color by number of sides
  • u - unique color
  • v - color with average adjacent vertex color
  • s - symmetric coloring [,sub_group,conj_type]
  • b - color faces by convexity using all dihedral angles
  • o - newly created faces by operation
  • w - use wythoff colors (overrides -V and -E)
• -E <col> — color the edges according to: (default: lightgray)
  • a color value - apply to all edges
  • s - symmetric coloring [,sub_group,conj_type]
  • b - color edges by convexity of dihedral angle
• -V <col> — color the vertices according to: (default: gold)
  • a color value - apply to all vertices
  • n - color by order of vertex
  • u - unique color
  • s - symmetric coloring [,sub_group,conj_type]
• -C <mthd> — tile colouring method, optionally followed by ':' and point colouring method.
  • Tile colouring methods
    • none - do not colour tiles
    • index - use the path index, and apply colormap (default)
    • association - colour tiles using corresponding base element
    • colour, optionally followed by a comma and a letter from V, E, F, or a colour, to use for all local tiles (default: F)
  • Point colouring methods (default: use tile coloring method)
    • none - do not colour points
    • index - use the point index, and apply colormap
    • association - colour points using corresponding base element
    • colour, optionally followed by a comma and a letter from V, E, F, or a colour, to use for all local points (default: F)
    • component - colour by non-zero components, V=1, E=2, F=4, V&E=3, E&F=6, V&F=5, V&E&F=7, and apply colormap
    • weight - colour using barycentric coordinates as RGB
• -T <t,e> — transparency. from 0 (invisible) to 255 (opaque). element is any or all of, v - vertices, e - edges, f - faces, a - all (default: f)
• -m <maps> — a comma separated list of color maps used to transform color indexes (default: colorful), a part consisting of letters from v, e, f, selects the element types to apply the map list to (default 'vef'). use map name of 'index' to output index numbers

🌈 Color maps 🌈

• colorful: red,darkorange1,yellow,darkgreen,cyan,blue,magenta,white,gray50,black
• ghart: red,blue,green,yellow,brown,magenta,purple,grue, gray,orange (from George Hart's original applet)
• convexity: white,gray50,gray25 (for -F b, -E b)

(maps are shifted '+-3' when -F n) (no effect when using -F w which uses internal wythoff maps)

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🌟 SEE ALSO 🌟

The full documentation for conway is maintained as a Texinfo manual. If the info and conway programs are properly installed at your site, the command

info conway

should give you access to the complete manual. iykyk 🫶

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bye bestie 💖 footer tea: conway: Antiprism 0.32 - http://www... — that’s the source/version line, manual tag is CONWAY(1), and there’s no date listed in it. periodt 🌈