Method constructor

examples/jsm/helpers/ViewHelper.js:39–525

* Constructs a new view helper. * * @param {Camera} camera - The camera whose transformation should be visualized. * @param {HTMLElement} [domElement] - The DOM element that is used to render the view.

( camera, domElement )

	 * @param {HTMLElement} [domElement] - The DOM element that is used to render the view.
	 */
	constructor( camera, domElement ) {

		super();

		/**
		 * This flag can be used for type testing.
		 *
		 * @type {boolean}
		 * @readonly
		 * @default true
		 */
		this.isViewHelper = true;

		/**
		 * The camera whose transformation is visualized. It can be reassigned at
		 * any time to rebind the helper to a different camera.
		 *
		 * @type {Camera}
		 */
		this.camera = camera;

		/**
		 * Whether the helper is currently animating or not.
		 *
		 * @type {boolean}
		 * @readonly
		 * @default false
		 */
		this.animating = false;

		/**
		 * The helper's center point.
		 *
		 * @type {Vector3}
		 */
		this.center = new Vector3();

		/**
		 * Controls the position of the helper in the viewport.
		 * Use `top`/`bottom` for vertical positioning and `left`/`right` for horizontal.
		 * If `left` is `null`, `right` is used. If `top` is `null`, `bottom` is used.
		 *
		 * @type {{top: number|null, right: number, bottom: number, left: number|null}}
		 */
		this.location = {
			top: null,
			right: 0,
			bottom: 0,
			left: null
		};

		const color1 = new Color( '#ff4466' );
		const color2 = new Color( '#88ff44' );
		const color3 = new Color( '#4488ff' );
		const color4 = new Color( '#000000' );

		const options = {};