www.pudn.com > contour_demo.zip > GLContour.h

// GLContour.h: interface for the CGLContour class. 
// 
////////////////////////////////////////////////////////////////////// 
 
#if !defined(AFX_GLCONTOUR_H__8E92F5AF_D733_47BA_9E52_F27D16391E2B__INCLUDED_) 
#define AFX_GLCONTOUR_H__8E92F5AF_D733_47BA_9E52_F27D16391E2B__INCLUDED_ 
 
#if _MSC_VER > 1000 
#pragma once 
#endif // _MSC_VER > 1000 
 
#include "Contour.h" 
 
class CGLContour : public CContour   
{ 
public: 
	CGLContour(); 
	virtual ~CGLContour(); 
 
	// Drawing segment using OpenGL 
	// See CContour::ExportLine for further details 
	virtual inline void ExportLine(int iPlane,int x1, int y1, int x2, int y2); 
}; 
 
inline void CGLContour::ExportLine(int iPlane,int x1, int y1, int x2, int y2) 
{ 
	glColor3f(iPlane/(float)m_iNPlanes,0,1.f-iPlane/(float)m_iNPlanes); 
	glBegin(GL_LINES); 
		glVertex2f((GLfloat)(m_pLimits[0]+x1*m_dDx),(GLfloat)(m_pLimits[2]+y1*m_dDy)); 
		glVertex2f((GLfloat)(m_pLimits[0]+x2*m_dDx),(GLfloat)(m_pLimits[2]+y2*m_dDy)); 
	glEnd(); 
	glColor3f(0,0,0); 
	glBegin(GL_POINTS); 
		glVertex2f((GLfloat)(m_pLimits[0]+x1*m_dDx),(GLfloat)(m_pLimits[2]+y1*m_dDy)); 
		glVertex2f((GLfloat)(m_pLimits[0]+x2*m_dDx),(GLfloat)(m_pLimits[2]+y2*m_dDy)); 
	glEnd(); 
} 
 
#endif // !defined(AFX_GLCONTOUR_H__8E92F5AF_D733_47BA_9E52_F27D16391E2B__INCLUDED_)