* Simple constructor. Subclasses should call @superInit(options) as well. * see why here: https://stackoverflow.com/questions/43595943/why-are-derived-class-property-values-not-seen-in-the-base-class-constructor * * template: constructor(d3Parent: D3Sel, eventHandler?: SimpleEven
(d3parent, eventHandler)
| 1467 | * @param {SimpleEventHandler} eventHandler a global event handler object or 'null' for local event handler |
| 1468 | */ |
| 1469 | constructor(d3parent, eventHandler) { |
| 1470 | this.id = _etc_Util__WEBPACK_IMPORTED_MODULE_0__["Util"].simpleUId({}); |
| 1471 | this.parent = d3parent; |
| 1472 | // If not further specified - create a local event handler bound to the bas element |
| 1473 | this.eventHandler = eventHandler || |
| 1474 | new _etc_SimpleEventHandler__WEBPACK_IMPORTED_MODULE_1__["SimpleEventHandler"](this.parent.node()); |
| 1475 | // Object for storing internal states and variables |
| 1476 | this._visibility = { hidden: false }; |
| 1477 | } |
| 1478 | // protected createSvgLayers(layers=['bg','main','fg']){ |
| 1479 | // this._layers = {} |
| 1480 | // this.base = SVG.group(this.parent, |