Files
foundryvtt-drag-ruler/js/geometry.js
T
2022-02-15 17:56:08 +01:00

22 lines
335 B
JavaScript

export class Line {
constructor(m, b) {
this.m = m;
this.b = b;
}
static fromPoints(p1, p2) {
// Bring line into y=mx+b form
const m = (p1.y - p2.y) / (p1.x - p2.x);
const b = p1.y - m * p1.x;
return new Line(m, b);
}
get isVertical() {
return !isFinite(this.m);
}
calcY(x) {
return this.m * x + this.b;
}
}