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springy alg

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This commit is contained in:
Jan Prochazka
2022-01-06 10:55:44 +01:00
parent 916eb697de
commit e2376f553a
6 changed files with 599 additions and 37 deletions
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36
packages/web/src/designer/designerMath.ts
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@@ -10,42 +10,6 @@ interface IBoxBounds {
bottom: number;
}
// export class Vector {
// constructor(public x: number, public y: number) {}
// static random() {
// return new Vector(10.0 * (Math.random() - 0.5), 10.0 * (Math.random() - 0.5));
// }
// add(v2: Vector) {
// return new Vector(this.x + v2.x, this.y + v2.y);
// }
// subtract(v2: Vector) {
// return new Vector(this.x - v2.x, this.y - v2.y);
// }
// multiply(n: number) {
// return new Vector(this.x * n, this.y * n);
// }
// divide(n: number) {
// return new Vector(this.x / n || 0, this.y / n || 0); // Avoid divide by zero errors..
// }
// magnitude() {
// return Math.sqrt(this.x * this.x + this.y * this.y);
// }
// normal(n: number) {
// return new Vector(-this.y, this.x);
// }
// normalise() {
// return this.divide(this.magnitude());
// }
// }
// helpers for figuring out where to draw arrows
export function intersectLineLine(p1: IPoint, p2: IPoint, p3: IPoint, p4: IPoint): IPoint {
var denom = (p4.y - p3.y) * (p2.x - p1.x) - (p4.x - p3.x) * (p2.y - p1.y);