//-----------------------------------------------------------------------------+
// Copyright (C), 1998-2007, Beijing Tangent Software Co. Ltd.
// = FileName	:   TPGeLandform.h
// = Version	:   ver2.0
// = Author		:   xlc
// = CreateDate	:   2002-09-09
// = Description:   类的声明 等高线实体
// = Maintainers: 
//                  
//-----------------------------------------------------------------------------+
#ifndef _TPGELANDFORM_H_
#define _TPGELANDFORM_H_

#ifndef _TPDLIST_H_
#include "TPDList.h"
#endif

#ifndef _TPGECURVE2D_H_
#include "TPGeCurve2D.h"
#endif

#ifndef _TSQTABLE_H_
#include "TSqTable.h"
#endif

#ifndef _TSQTABLE2_H_
#include "TSqTable2.h"
#endif

#ifndef _TPGEGRIDNODE_H_
#include "TPGeGridNode.h"
#endif

#ifndef _TPGEGRIDCELL_H_
#include "TPGeGridCell.h"
#endif

#ifndef _TPGEGRIDLINE_H_
#include "TPGeGridLine.h"
#endif

class GEOAPI TPGeLandform : public TPDList<TPGeCurve2D>
{
public:
	
	TPGeLandform();
	virtual ~TPGeLandform();

	bool IsValid()const;

	//返回false时外部delete pCurve;
	bool Append(TPGeCurve2D* pCurve);
	
	const TPGeCurve2D& Outline()const;

	double GetDistX()const;
	
	double GetDistY()const;
	
	double GetElev()const;
	
	//建立网格数据结构，mlines返回凸多边形
	bool CreateGridData(double distX, double distY, TGObjectList& mlines, int fitType = false);

protected:

	double m_fDistX,m_fDistY;

	//横向网格线,M
	TSqTable<TPGeGridLine> m_allGridLineX;

	//纵向网格线,N
	TSqTable<TPGeGridLine> m_allGridLineY;

	//网格交点阵列,M*N
	TSqTable2<TPGeGridNode> m_allGridNode;

	//网格阵列(M-1)*(N-1)
	TSqTable2<TPGeGridCell> m_allGridCell;
};

#endif