image-in-browser/lib/common/line.js

Package for encoding / decoding images, transforming images, applying filters, drawing primitives on images on the client side (no need for server Node.js)

export class Line {
    get x1() {
        return this._x1;
    }
    get y1() {
        return this._y1;
    }
    get x2() {
        return this._x2;
    }
    get y2() {
        return this._y2;
    }
    get dx() {
        return this._x2 - this._x1;
    }
    get dy() {
        return this._y2 - this._y1;
    }
    constructor(x1, y1, x2, y2) {
        this._x1 = x1;
        this._y1 = y1;
        this._x2 = x2;
        this._y2 = y2;
    }
    static from(other) {
        return new Line(other.x1, other.y1, other.x2, other.y2);
    }
    movePoint1(x, y) {
        this._x1 = x;
        this._y1 = y;
    }
    movePoint2(x, y) {
        this._x2 = x;
        this._y2 = y;
    }
    swapXY1() {
        const tmp = this._x1;
        this._x1 = this._y1;
        this._y1 = tmp;
    }
    swapXY2() {
        const tmp = this._x2;
        this._x2 = this._y2;
        this._y2 = tmp;
    }
    flipX() {
        const tmp = this._x1;
        this._x1 = this._x2;
        this._x2 = tmp;
    }
    flipY() {
        const tmp = this._y1;
        this._y1 = this._y2;
        this._y2 = tmp;
    }
    clone() {
        return new Line(this._x1, this._y1, this._x2, this._y2);
    }
    toString() {
        return `${this.constructor.name} (x1: ${this._x1}, y1: ${this._y1}, x2: ${this._x2}, y2: ${this._y2})`;
    }
}
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