//-----------------------------------------------------------------------------+
// Copyright (C), 1998-2007, Beijing Tangent Software Co. Ltd.
// = FileName	:   TGObject2D.h
// = Version	:   ver2.0
// = Author		:   xlc
// = CreateDate	:   2002-09-09
// = Description:   类的声明 平面实体基类
// = Maintainers: 
//                  
//-----------------------------------------------------------------------------+
#ifndef _TGOBJECT2D_H_
#define _TGOBJECT2D_H_

#ifndef _TGOBJECT_H_
#include "TGObject.h"
#endif

#ifndef _TPGEEXTEND3D_H_
#include "TPGeExtend3D.h"
#endif

#ifndef _TGPOINT_H_
#include "TGPoint.h"
#endif

class TGObject3D;

class GEOAPI TGObject2D : public TGObject
{
	DECLARE_RUN_TIME_CLASS(TGObject2D)
public:
	virtual ~TGObject2D();
	//overridable
	virtual void   SetElev(double elev);//设标高

	virtual double GetElev()const;//取标高

	//转化为对应三维实体
	virtual TGObject3D * Convert3D()const;

	//override TGObject
	//此处在TGObject基础由增加包含TGPoint2D判断
	virtual bool IsInclude(const TGObject&obj)const;

	//此处GetExtend2D()+Z=GetElev
	virtual bool GetExtend3D(TPGeExtend3D&ext)const;

	//transform
	void Move(double cx,double cy);
	
	void Scale(double sx,double sy);
	
	void Scale(double sx,double sy,const TGPoint&basePoint);

	void Rotate(double angle);

	void Rotate(double angle,const TGPoint& basePoint);
};

#endif