forestview.cpp

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// forestView.cpp : implementation of the CForestView class
//

#include "stdafx.h"
#include "forest.h"

#include "forestDoc.h"
#include "forestView.h"

#include "height.h"
#include <stdio.h>
#include <fstream.h>
#include <math.h>

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

CString str;//文件路径
int begin=0;
int onlyonce=1;

 
/////////////////////////////////////////////////////////////////////////////
// CForestView

IMPLEMENT_DYNCREATE(CForestView, CView)

BEGIN_MESSAGE_MAP(CForestView, CView)
	//{{AFX_MSG_MAP(CForestView)
	ON_COMMAND(ID_FILE_OPEN, OnFileOpen)
	ON_COMMAND(ID_HEIGHT, OnHeight)
	//}}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()

/////////////////////////////////////////////////////////////////////////////
// CForestView construction/destruction

CForestView::CForestView()
{
	// TODO: add construction code here
    type=5;
}

CForestView::~CForestView()
{
}

BOOL CForestView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CForestView drawing

void CForestView::OnDraw(CDC* pDC)
{
	CForestDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
	if(onlyonce) {MessageBox("请在文件菜单下打开数据文件");onlyonce=0;}
	if(begin) Draw();
	
}

/////////////////////////////////////////////////////////////////////////////
// CForestView printing

BOOL CForestView::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}

void CForestView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}

void CForestView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}

/////////////////////////////////////////////////////////////////////////////
// CForestView diagnostics

#ifdef _DEBUG
void CForestView::AssertValid() const
{
	CView::AssertValid();
}

void CForestView::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}

CForestDoc* CForestView::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CForestDoc)));
	return (CForestDoc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CForestView message handlers

void CForestView::OnFileOpen() 
{
	// TODO: Add your command handler code here
	 
	CFileDialog dlg(TRUE);
	if(dlg.DoModal()==IDOK)
	{
		str=dlg.GetPathName();
		begin=1;
		Draw();
		MessageBox(" 仅供参考,请勿转载。");
	}
}

void CForestView::OnPrepareDC(CDC *pDC, CPrintInfo *pInfo)
{
   
}

void CForestView::OnHeight() 
{
	// TODO: Add your command handler code here
	height dlg;
    dlg.m_height=type;	
	if(IDOK==dlg.DoModal())
	{
		type=dlg.m_height;		
	}
	Invalidate();
}

void CForestView::Draw()
{
     FILE *f1=fopen(str,"r");    
    if(f1==NULL)
	{ 
	    MessageBox("文件打不开!");		
		exit(1);
	}  
	 ifstream fin;
	fin.open (str,ios::in|ios::nocreate);  
	if(!fin)
	{
		cerr<<"文件打不开!"<<endl;
		exit(1);
	}  
	
	char str1[10];
	fin>>str1;
	int scal;
	fin>>scal;
	double x1,x2,y1,y2;
	char c;
	fin>>x1>>c>>x2>>c>>y1>>c>>y2;		
	CClientDC dc(this);
	dc.SetMapMode(MM_ANISOTROPIC);
	dc.SetWindowOrg(x1+7500,y1);

	dc.SetWindowExt(fabs(x1-x2)-9500,fabs(y1-y2)-2000);
	dc.SetViewportExt(1100,650);
			  	
	while(1)
	{
		int mark,draw=0;int Hdraw=0;
		fin>>mark;
		if(mark==0) break;
    	if(mark==71011) draw=1;
		else draw=2;		
		float height;
		fin>>height; 
		if(int(height)%type==0) Hdraw=1;
		int number;
		fin>>number;
		float startx,starty;char c;
		fin>>startx>>c>>starty;					
			switch(draw)
			{
			case 1:	
				{					
					for(int i=0;i<number-1;i++)
					{
						float x,y;char c;
						fin>>x>>c>>y;
						if(Hdraw)
						{
							dc.MoveTo(startx,starty);
							dc.LineTo(x,y);			
							startx=x;
							starty=y;
						}
					}
				}
				break;
			case 2:
				{
					for(int j=0;j<number-1;j++)
					{
						float x,y;char c;
						fin>>x>>c>>y;
						if(Hdraw)
						{
							CPen pen(0,1,RGB(0,255,0));
							CPen *oldpen=dc.SelectObject(&pen);
							dc.MoveTo(startx,starty);
							dc.LineTo(x,y);			
							startx=x;
							starty=y;
							dc.SelectObject(oldpen);
						}
					}
				}
				break;				
			}
		}				
		 	
}