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feature-120-cell-more-inscriptions #24

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bombinans merged 20 commits from feature-120-cell-more-inscriptions into main 2026-01-01 07:27:01 +00:00
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4 changed files with 11 additions and 4 deletions
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5
CHANGELOG.md
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@ -1,6 +1,11 @@
CHANGELOG CHANGELOG
========= =========
## v1.1 - 1/1/2025
The 120-cell now includes a visualisation of its inscribed 5-cells, which honestly
looks like less of a mess than I expected it to.
## v1.0 - 16/11/2025 ## v1.0 - 16/11/2025
It's been [two years](https://mikelynch.org/2023/Sep/02/120-cell/)</a> since It's been [two years](https://mikelynch.org/2023/Sep/02/120-cell/)</a> since

3
colours.js
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@ -14,6 +14,7 @@ export const get_colours = (basis) => {
const hsl = colours.map((c) => Color("#" + c).hsl()); const hsl = colours.map((c) => Color("#" + c).hsl());
const resaturated = hsl.map((hslc) => hslc.saturationl(saturation).rgbNumber()); const resaturated = hsl.map((hslc) => hslc.saturationl(saturation).rgbNumber());
resaturated.unshift(basis); resaturated.unshift(basis);
console.log(resaturated);
return resaturated; return resaturated;
} }
@ -34,4 +35,4 @@ export const get_plain_colours = (basis) => {
0xff9900, 0xff9900,
0x000000, 0x000000,
] ]
} }

2
index.html
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@ -36,7 +36,7 @@
<script type="module" src="/main.js"></script> <script type="module" src="/main.js"></script>
<div id="description"></div> <div id="description"></div>
<div id="release_notes"></div> <div id="release_notes"></div>
<div id="info"><a href="#" id="show_notes">release 1.0</a> | <div id="info"><a href="#" id="show_notes">release 1.1</a> |
by <a target="_blank" href="https://mikelynch.org/">Mike Lynch</a> | by <a target="_blank" href="https://mikelynch.org/">Mike Lynch</a> |
<a target="_blank" href="https://git.tilde.town/bombinans/fourdjs">source</a></div> <a target="_blank" href="https://git.tilde.town/bombinans/fourdjs">source</a></div>

5
polytopes.js
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@ -465,8 +465,9 @@ export const cell120_inscribed = () => {
description: `The 120-cell is the four-dimensional analogue of the description: `The 120-cell is the four-dimensional analogue of the
dodecahedron, and consists of 120 dodecahedra joined at 720 faces, dodecahedron, and consists of 120 dodecahedra joined at 720 faces,
with three dodecahedra around each edge. It is dual to the 600-cell, with three dodecahedra around each edge. It is dual to the 600-cell,
and five 600-cells can be inscribed in its vertices. Its 600 vertices and five 600-cells can be inscribed in its vertices. The converse
can also be divided between 120 5-cells.`, of this allows 120 5-cells (each of which has one vertex in each
of the 5 600-cells) to be inscribed in the 120-cell.`,
} }
} }