circle.cpp

用VC做的画椭圆程序....我自己做的

// Circle.cpp: implementation of the CCircle class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "exgraph.h"
#include "Circle.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
IMPLEMENT_SERIAL(CCircle,CObject,1)
CCircle::CCircle()
{

}
CCircle::CCircle(CPoint pcenter,int nradius)
{
	m_pcenter = pcenter;
	m_nradius = nradius;
}

CCircle::~CCircle()
{

}

void CCircle::Plot(CDC *pDC)
{
	RECT nrect;
	nrect.left=m_pcenter.x-m_nradius;
	nrect.right=m_pcenter.x+m_nradius;
	nrect.top=m_pcenter.y-m_nradius;
	nrect.bottom=m_pcenter.y+m_nradius;
    pDC->Ellipse(&nrect);
}

void CCircle::Serialize(CArchive &ar)
{
	CObject::Serialize(ar);
	if(ar.IsLoading())
		ar>>m_pcenter>>m_nradius;
	else
		ar<<m_pcenter<<m_nradius;

}