WebPolygonShape constructor
      
      WebPolygonShape(
    
    
- String id,
- WebPolygon element, {
- required WebPolygonOption option,
- required PolygonStyle style,
Implementation
WebPolygonShape(this.id, this.element,
    {required this.option, required this.style})
    : styleId = style.id!,
      currentLevel = style.zoomLevel;