//////////////////////////////////////////////////////////////////////////////
//文件 TraceContour.h
//主要功能: 
//
//程序编写:		2005-12-07
/////////////////////////////////////////////////////////////////////////////

#pragma once
#include "ImageTraceBase.h"

namespace NImage
{

//图像半自动矢量化
class AFX_EXT_CLASS CTraceContour : public CImageTraceBase
{
public:
	CTraceContour(void);
	virtual ~CTraceContour(void);

public:
	int ExtremumTrace(POINT point);

	void SetWidthError(double dwe);
	double GetWidthError(void);
	void SetWidthScale(double dws);
	double GetWidthScale(void);

protected:
	COLORREF m_curColor;
	double m_errWidthError;
	double m_errWidthScale;
	double cw;
	int MaxPD;
	int RepeatNum;

	double MinAngle(POINT &point);
	int GetRange(POINT point,double angle,POINT &begin,POINT &end);
	int TraceCurve(POINT point,double angle,int HeadOrTail);
	int GetNextPoint(POINT &point,int &r,int state=1);
	int IsInCurve(POINT& t);
	POINT Direction(POINT &point,int r);
};

};