NJ API for Cesium GeoAnimationPlayPanelWidget

Example:

var singleArrowElement = new Cesium.GeoSingleArrowElement({
	viewer: viewer,
	positions: [
		[106.50255907979172, 30.124293956577112],
		[109.57560428200443, 28.695531735044707],
		[112.19039125075413, 29.356410433383108],
		[114.08748761156725, 30.56765059559664]
	],
	lineColor: new Cesium.Color(0, 1, 1, 1),
	lineWidth: 5,
	lineStyle: GeoElement.LINE_STYLE.SOLID,
	fillMode: "gradient", //gradient
	fillColor: new Cesium.Color(0, 0, 1, 1),
	fillStartColor: new Cesium.Color(0, 0, 1, 1),
	fillEndColor: new Cesium.Color(0, 1, 0, 1),
	visibleSwallowTail: true
})

var animation = new Cesium.GeoAnimationGrow({
	name: '单箭头，多途径点的动画',
	startTime: 0,
	duration: 5,
	element: singleArrowElement
});
 
let animationManager = new Cesium.GeoAnimationManager({
	animations: [animation]
});

let animationPlayPanel = new Cesium.GeoAnimationPlayPanelWidget({
	viewer,
	animationManager
});