glcontour.h

等值线计算和绘制源程序

// 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)GetNPlanes(),0,1.f-iPlane/(float)GetNPlanes());
	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_)