import { CoordinateSystem } from "../../constants.js"; import Renderer from "./Renderer.js"; export interface BackendParameters { canvas?: HTMLCanvasElement | undefined; } export default abstract class Backend { renderer: Renderer | null; domElement: HTMLCanvasElement | null; constructor(parameters?: BackendParameters); init(renderer: Renderer): void; abstract get coordinateSystem(): CoordinateSystem; getDomElement(): HTMLCanvasElement; }