//////////////////////////////////////////////////////////////////////////////
//文件: SegY文件操作类
//主要功能: 
//
//程序编写:		2005-12-07
//
//
/////////////////////////////////////////////////////////////////////////////

#pragma once
#include ".\sectioncube.h"

class AFX_EXT_CLASS CTrace3D : public CSectionCube
{
public:
	CTrace3D(void);
	virtual ~CTrace3D(void);

	virtual BOOL Open(void);
	virtual void Close(void);
	virtual void Clear(void);
	int TraceAll(int i, int j, double k);

	BOOL Create
		( 
		double error,
		CString m_position, CString m_result,
		CString m_A,  int n, double dt, int IsPC, int nFormatCode
		);	
	int Trace(int i, int j, double k);
	int CreateResult(void);
	double Result(void);
	int WriteResult(double z0);
	double TraceNext(int i, int j, int k);
	int TraceOne(int i,int j);
	int GetDirect(int i,int j,int l);
	int Trace(void);

protected:
	double ExtremumPoint(int j);
	double ExtremumPointNegative(int j);
	double ExtremumPointPositive(int j);
	void TraceBegin(int i, int j, double k);
	void TraceBegin1(int i, int j);

	CFileSegy *fr;
	CString m_result;
	double error;
	int IsPositive;
	double aone;
	double amin;
	double range[2];
};