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chore: Unify math types, utils and functions (#8389)

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Co-authored-by: dwelle <5153846+dwelle@users.noreply.github.com>
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Márk Tolmács 2024-09-03 00:23:38 +02:00 • committed by GitHub
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commit f4dd23fc31
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26
packages/math/ga/gadirections.ts Normal file
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import * as GA from "./ga";
import type { Line, Direction, Point } from "./ga";
/**
* A direction is stored as an array `[0, 0, 0, 0, y, x, 0, 0]` representing
* vector `(x, y)`.
*/
export const from = (point: Point): Point => [
0,
0,
0,
0,
point[4],
point[5],
0,
0,
];
export const fromTo = (from: Point, to: Point): Direction =>
GA.inormalized([0, 0, 0, 0, to[4] - from[4], to[5] - from[5], 0, 0]);
export const orthogonal = (direction: Direction): Direction =>
GA.inormalized([0, 0, 0, 0, -direction[5], direction[4], 0, 0]);
export const orthogonalToLine = (line: Line): Direction => GA.mul(line, GA.I);