polydisp.h

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// PolyDisp.h: interface for the CPolyDisp class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_POLYDISP_H__CE28A63C_5BC6_4ECE_994D_B4CD7B417392__INCLUDED_)
#define AFX_POLYDISP_H__CE28A63C_5BC6_4ECE_994D_B4CD7B417392__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#define round(x) ((x>0)?(int)(x+0.5):(int)(x-0.5)) 
struct edge
{
	int ymax;
	float xi;
	float m;
	struct edge *next;
};

class CPolyDisp  
{
public:
	CPolyDisp();
	virtual ~CPolyDisp();
    
	CDC *pDC;
    CPolyDisp(CDC *poDC);
	//void lineDDA(int x1, int y1, int x2, int y2, COLORREF crColor=RGB(255, 0, 0));
	void poly_fill(CDC*,int,int *,COLORREF);
	void insert_et(struct edge *anedge,struct edge **p_deges);
	short insert_aet(struct edge *p,struct edge **p_aet);
    void draw_line(int x1,int x2,int y,COLORREF crColor);
};

#endif // !defined(AFX_POLYDISP_H__CE28A63C_5BC6_4ECE_994D_B4CD7B417392__INCLUDED_)