www.pudn.com > OpenGL实现三维绘图.rar > ZProject.cpp

// ZProject.cpp : implementation file 
// 
 
#include "stdafx.h" 
#include "Test1.h" 
#include "ZProject.h" 
#include "MainFrm.h" 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
///////////////////////////////////////////////////////////////////////////// 
// CZProject 
extern GLfloat Databuf[ArrayOne][ArrayTwo]; 
extern bool gbIsGetData; 
extern bool gbDataIsEmpty; 
 
IMPLEMENT_DYNCREATE(CZProject, CView) 
 
CZProject::CZProject() 
{ 
} 
 
CZProject::~CZProject() 
{ 
} 
 
 
BEGIN_MESSAGE_MAP(CZProject, CView) 
	//{{AFX_MSG_MAP(CZProject) 
	ON_WM_ERASEBKGND() 
	//}}AFX_MSG_MAP 
END_MESSAGE_MAP() 
 
///////////////////////////////////////////////////////////////////////////// 
// CZProject drawing 
 
void CZProject::OnDraw(CDC* pDC) 
{ 
	CDocument* pDoc = GetDocument(); 
	CRect rc; 
	GetClientRect(&rc); 
	pDC->SetTextAlign(TA_CENTER); 
	pDC->SetTextColor(YELLOW); 
	pDC->SetBkMode(1); 
 
	CFont *OldFont = pDC->SelectObject(&this->m_pFr->m_13Font); 
	 
	CPen *pen = new CPen(PS_SOLID,1,GREEN); 
	CPen *pOldPen = pDC->SelectObject(pen);	 
	pDC->TextOut(rc.right/2,2,"Z轴投影-密度"); 
	//x轴 
	pDC->MoveTo(10,rc.bottom-20); 
	pDC->LineTo(rc.right-30,rc.bottom-20); 
	pDC->MoveTo(rc.right-30,rc.bottom-20); 
	pDC->LineTo(rc.right-30-5,rc.bottom-20-5); 
	pDC->MoveTo(rc.right-30,rc.bottom-20); 
	pDC->LineTo(rc.right-30-5,rc.bottom-20+5); 
	//y轴 
	pDC->MoveTo(10,rc.bottom-20); 
	pDC->LineTo(10,25); 
	pDC->MoveTo(10,25); 
	pDC->LineTo(5,30); 
	pDC->MoveTo(10,25); 
	pDC->LineTo(15,30); 
 
	this->DrawZCoordinate(pDC); 
	this->ZProjection(pDC); 
	pDC->SelectObject(pOldPen); 
	pDC->SelectObject(OldFont); 
	delete pen; 
} 
 
///////////////////////////////////////////////////////////////////////////// 
// CZProject diagnostics 
 
#ifdef _DEBUG 
void CZProject::AssertValid() const 
{ 
	CView::AssertValid(); 
} 
 
void CZProject::Dump(CDumpContext& dc) const 
{ 
	CView::Dump(dc); 
} 
#endif //_DEBUG 
 
///////////////////////////////////////////////////////////////////////////// 
// CZProject message handlers 
 
BOOL CZProject::OnEraseBkgnd(CDC* pDC)  
{ 
	CBrush Brush (BLACK);  
    CBrush* pOldBrush = pDC->SelectObject(&Brush);      
	CRect ViewClip;  
	pDC->GetClipBox(&ViewClip);      
	pDC->PatBlt(ViewClip.left,ViewClip.top,ViewClip.Width(),ViewClip.Height(),PATCOPY);     
	pDC->SelectObject (pOldBrush ); 
	return TRUE; 
} 
 
void CZProject::OnInitialUpdate()  
{ 
	CView::OnInitialUpdate(); 
	 
	this->m_pFr = (CMainFrame*)AfxGetApp()->m_pMainWnd;	 
} 
 
void CZProject::DrawZCoordinate(CDC *pDC) 
{ 
	CRect rc; 
	this->GetClientRect(&rc); 
	pDC->SetTextAlign(TA_LEFT); 
	pDC->TextOut(2,rc.bottom-15,"0"); 
	pDC->TextOut(rc.right-30,rc.bottom-25,"声波"); 
	pDC->TextOut(0,10,"中子"); 
} 
 
void CZProject::ZProjection(CDC *pDC) 
{ 
	if (::gbIsGetData) 
		return; 
 
	if (::gbDataIsEmpty) 
		return; 
 
	CRect rc; 
	GetClientRect(&rc); 
	for (int i=0; i= this->m_pFr->m_pView->m_nMinDepth  
			&& (GLfloat)Databuf[i][0] <= this->m_pFr->m_pView->m_nMaxDepth ) 
		{ 
			pDC->SetPixel(Databuf[i][this->m_pFr->m_pView->m_First]/3-10 
				,(rc.bottom-20) -( Databuf[i][this->m_pFr->m_pView->m_Second]*3+20 ) 
				,BLUE); 
		} 
	} 
}