Method constructor

docs/app/js/sanddance-app.js:140259–140262

()

const epsilon = 1e-6;
class Path {
    constructor(){
        this._x0 = this._y0 = this._x1 = this._y1 = null; // end of current subpath
        this._ = "";
    }
    moveTo(x, y) {
        this._ += `M${this._x0 = this._x1 = +x},${this._y0 = this._y1 = +y}`;
    }