www.pudn.com > CDem.rar > CDemView.cpp

// CDemView.cpp : implementation of the CCDemView class 
// 
 
#include "stdafx.h" 
#include "CDem.h" 
 
#include "CDemDoc.h" 
#include "CDemView.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
///////////////////////////////////////////////////////////////////////////// 
// CCDemView 
 
IMPLEMENT_DYNCREATE(CCDemView, CView) 
 
BEGIN_MESSAGE_MAP(CCDemView, CView) 
	//{{AFX_MSG_MAP(CCDemView) 
	ON_COMMAND(ID_FILE_OPEN, OnFileOpen) 
	//}}AFX_MSG_MAP 
	// Standard printing commands 
	ON_COMMAND(ID_FILE_PRINT, CView::OnFilePrint) 
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CView::OnFilePrint) 
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CView::OnFilePrintPreview) 
END_MESSAGE_MAP() 
 
///////////////////////////////////////////////////////////////////////////// 
// CCDemView construction/destruction 
 
CCDemView::CCDemView() 
{ 
	// TODO: add construction code here 
m_bPress = false; 
m_pEle = NULL; 
} 
 
CCDemView::~CCDemView() 
{if(m_pEle) 
{ 
	delete[] m_pEle; 
		m_pEle =NULL; 
} 
} 
 
BOOL CCDemView::PreCreateWindow(CREATESTRUCT& cs) 
{ 
	// TODO: Modify the Window class or styles here by modifying 
	//  the CREATESTRUCT cs 
 
	return CView::PreCreateWindow(cs); 
} 
 
///////////////////////////////////////////////////////////////////////////// 
// CCDemView drawing 
 
void CCDemView::OnDraw(CDC* pDC) 
{ 
	CCDemDoc* pDoc = GetDocument(); 
	ASSERT_VALID(pDoc); 
	// TODO: add draw code for native data here 
} 
 
///////////////////////////////////////////////////////////////////////////// 
// CCDemView printing 
 
BOOL CCDemView::OnPreparePrinting(CPrintInfo* pInfo) 
{ 
	// default preparation 
	return DoPreparePrinting(pInfo); 
} 
 
void CCDemView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/) 
{ 
	// TODO: add extra initialization before printing 
} 
 
void CCDemView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/) 
{ 
	// TODO: add cleanup after printing 
} 
 
///////////////////////////////////////////////////////////////////////////// 
// CCDemView diagnostics 
 
#ifdef _DEBUG 
void CCDemView::AssertValid() const 
{ 
	CView::AssertValid(); 
} 
 
void CCDemView::Dump(CDumpContext& dc) const 
{ 
	CView::Dump(dc); 
} 
 
CCDemDoc* CCDemView::GetDocument() // non-debug version is inline 
{ 
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CCDemDoc))); 
	return (CCDemDoc*)m_pDocument; 
} 
#endif //_DEBUG 
 
///////////////////////////////////////////////////////////////////////////// 
// CCDemView message handlers 
 
BOOL CCDemView::OpenFile(char *szFile) 
{	 
 
  ifstream is(szFile);  
  if(is.bad())  
  return   false;  
  if(!is.is_open()) 
	{ 
		AfxMessageBox("error"); 
		return FALSE; 
	} 
  char   message[300];  
  is.seekg(0,ios::beg);  
is.getline(message,sizeof(message)-1, '\n '); // 
//if(lstrcmpi(message, "NSDTF-DEM ")!=0)  
//{  
//   AfxMessageBox( "当前DEM文件非国家空间数据交换格式! ");  
//   return   FALSE;  
//}  
is.getline(message,sizeof(message)-1, '\n ');  
is.getline(message,sizeof(message)-1, '\n ');  
is.getline(message,sizeof(message)-1, '\n ');  
is.getline(message,sizeof(message)-1, '\n ');  
 
is.getline(message,sizeof(message)-1, '\n ');  
sscanf(message, "%f ",&m_fLeftTopX);  
 
is.getline(message,sizeof(message)-1, '\n ');  
sscanf(message, "%f ",&m_fLeftTopY);  
 
is.getline(message,sizeof(message)-1, '\n ');  
sscanf(message, "%f ",&m_fGridX);  
is.getline(message,sizeof(message)-1, '\n ');  
sscanf(message, "%f ",&m_fGridY);  
 
is.getline(message,sizeof(message)-1, '\n ');  
sscanf(message, "%d ",&m_nRow);  
is.getline(message,sizeof(message)-1, '\n ');  
sscanf(message, "%d ",&m_nCol);  
 
is.getline(message,sizeof(message)-1, '\n ');  
sscanf(message, "%d ",&m_nScale);  
 
is.getline(message,sizeof(message)-1, '\n '); 
  
if(fabs(m_fGridX-m_fGridY) > 0.0001) 
{  
AfxMessageBox("系统要求DEM为正方形格网 ");  
return   false;  
}  
 
m_pEle=new   int[m_nRow*m_nCol];  
int   i,j,k;  
for(i=0;i