function BillboardGraphics(options) {
  this._definitionChanged = new Event();
  this._show = undefined;
  this._showSubscription = undefined;
  this._image = undefined;
  this._imageSubscription = undefined;
  this._scale = undefined;
  this._scaleSubscription = undefined;
  this._pixelOffset = undefined;
  this._pixelOffsetSubscription = undefined;
  this._eyeOffset = undefined;
  this._eyeOffsetSubscription = undefined;
  this._horizontalOrigin = undefined;
  this._horizontalOriginSubscription = undefined;
  this._verticalOrigin = undefined;
  this._verticalOriginSubscription = undefined;
  this._heightReference = undefined;
  this._heightReferenceSubscription = undefined;
  this._color = undefined;
  this._colorSubscription = undefined;
  this._rotation = undefined;
  this._rotationSubscription = undefined;
  this._alignedAxis = undefined;
  this._alignedAxisSubscription = undefined;
  this._sizeInMeters = undefined;
  this._sizeInMetersSubscription = undefined;
  this._width = undefined;
  this._widthSubscription = undefined;
  this._height = undefined;
  this._heightSubscription = undefined;
  this._scaleByDistance = undefined;
  this._scaleByDistanceSubscription = undefined;
  this._translucencyByDistance = undefined;
  this._translucencyByDistanceSubscription = undefined;
  this._pixelOffsetScaleByDistance = undefined;
  this._pixelOffsetScaleByDistanceSubscription = undefined;
  this._imageSubRegion = undefined;
  this._imageSubRegionSubscription = undefined;
  this._distanceDisplayCondition = undefined;
  this._distanceDisplayConditionSubscription = undefined;
  this._disableDepthTestDistance = undefined;
  this._disableDepthTestDistanceSubscription = undefined;
  this._splitDirection = undefined;
  this._splitDirectionSubscription = undefined;

  this.merge(options ?? Frozen.EMPTY_OBJECT);
}
Describes a two dimensional icon located at the position of the containing {@link Entity}.
<p>
<div align='center'>
<img src='Images/Billboard.png' width='400' height='300' /><br />
Example billboards
</div>
</p>

@alias BillboardGraphics
@constructor

@param {BillboardGraphics.ConstructorOptions} [options] Object describing initialization options

@demo {@link https://sandcastle.cesium.com/index.html?src=Billboards.html|Cesium Sandcastle Billboard Demo}