#include "PolygonModel.h"#include "../core/ContextItem.h"#include "../../geometry/Envelope.h"#include "../../color/RGBAColor.h"#include "../../maptools/Canvas.h"#include "../core/enum/Enums.h"#include "../../geometry/Point.h"#include "../core/pattern/singleton/Context.h"#include "../core/Utils.h"#include "../core/pattern/mvc/ItemObserver.h"