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✅ Tests for utils

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This commit is contained in:
Joost De Cock 2018-08-12 13:32:53 +02:00
parent 6b1c3fbaaf
commit 9d486fd617
5 changed files with 138 additions and 20 deletions
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src/utils.js
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@ -47,14 +47,15 @@ export function beamsCross(a1, a2, b1, b2) {
/** Find intersection of two line segments */
export function linesCross(a1, a2, b1, b2) {
let p = beamsCross(a1, a2, b1, b2);
if (!p) return false;
if (p) {
let lenA = a1.dist(a2);
let lenB = b1.dist(b2);
let lenC = a1.dist(p) + p.dist(a2);
let lenD = b1.dist(p) + p.dist(b2);
if (round(lenA) == round(lenC) && round(lenB) == round(lenD)) return p;
else return false;
}
return false;
}
/** Find where an (endless) line crosses a certain Y-value */