gpstestview.cpp

GPS-OEM模块卫星方位图测试软件设计程序（采用Microsoft Visual C++6.0进行编程设计。）

// gpstestView.cpp : implementation of the CGpstestView class
//

#include "stdafx.h"
#include "gpstest.h"

#include "gpstestDoc.h"
#include "gpstestView.h"
#include "math.h"

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

/////////////////////////////////////////////////////////////////////////////
// CGpstestView

IMPLEMENT_DYNCREATE(CGpstestView, CFormView)

BEGIN_MESSAGE_MAP(CGpstestView, CFormView)
	//{{AFX_MSG_MAP(CGpstestView)
	ON_BN_CLICKED(IDC_CLEAR_BUTTON, OnClearButton)
	ON_BN_CLICKED(IDC_CLOSE_BUTTON, OnCloseButton)
	ON_BN_CLICKED(IDC_START_BUTTON, OnStartButton)
	ON_BN_CLICKED(IDC_STOP_BUTTON, OnStopButton)
	ON_WM_TIMER()
	ON_BN_CLICKED(IDC_READ_BUTTON, OnReadButton)
	ON_BN_CLICKED(IDC_SAVE_BUTTON, OnSaveButton)
	ON_WM_ERASEBKGND()
	//}}AFX_MSG_MAP
	// Standard printing commands
	ON_COMMAND(ID_FILE_PRINT, CFormView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CFormView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CFormView::OnFilePrintPreview)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CGpstestView construction/destruction

CGpstestView::CGpstestView()
	: CFormView(CGpstestView::IDD)
{
	//{{AFX_DATA_INIT(CGpstestView)
	m_data = _T("");
	m_com = _T("");
	m_bote = _T("");
	m_riqi = _T("");
	m_shijian = _T("");
	m_gaodu = _T("");
	m_jingdu = _T("");
	m_weidu = _T("");
	m_dingwei = _T("");
	m_sudu = _T("");
	m_shuiping = _T("");
	m_chuizhi = _T("");
	m_weizhi = _T("");
	//}}AFX_DATA_INIT
	// TODO: add construction code here

}

CGpstestView::~CGpstestView()
{
}

void CGpstestView::DoDataExchange(CDataExchange* pDX)
{
	CFormView::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CGpstestView)
	DDX_Text(pDX, IDC_EDIT1, m_data);
	DDX_Control(pDX, IDC_MSCOMM1, m_ctrlComm1);
	DDX_CBString(pDX, IDC_COMBO1, m_com);
	DDX_CBString(pDX, IDC_COMBO2, m_bote);
	DDX_Text(pDX, IDC_STATIC1, m_riqi);
	DDX_Text(pDX, IDC_STATIC2, m_shijian);
	DDX_Text(pDX, IDC_STATIC3, m_gaodu);
	DDX_Text(pDX, IDC_STATIC4, m_jingdu);
	DDX_Text(pDX, IDC_STATIC5, m_weidu);
	DDX_Text(pDX, IDC_STATIC6, m_dingwei);
	DDX_Text(pDX, IDC_STATIC10, m_sudu);
	DDX_Text(pDX, IDC_STATIC7, m_shuiping);
	DDX_Text(pDX, IDC_STATIC8, m_chuizhi);
	DDX_Text(pDX, IDC_STATIC9, m_weizhi);
	//}}AFX_DATA_MAP
}

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

	return CFormView::PreCreateWindow(cs);
}

void CGpstestView::OnInitialUpdate()
{
	CFormView::OnInitialUpdate();
	GetParentFrame()->RecalcLayout();
	ResizeParentToFit();

}

/////////////////////////////////////////////////////////////////////////////
// CGpstestView printing

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

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

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

void CGpstestView::OnPrint(CDC* pDC, CPrintInfo* /*pInfo*/)
{
	// TODO: add customized printing code here
}

/////////////////////////////////////////////////////////////////////////////
// CGpstestView diagnostics

#ifdef _DEBUG
void CGpstestView::AssertValid() const
{
	CFormView::AssertValid();
}

void CGpstestView::Dump(CDumpContext& dc) const
{
	CFormView::Dump(dc);
}

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

/////////////////////////////////////////////////////////////////////////////
// CGpstestView message handlers

void CGpstestView::OnClearButton() 
{
	// TODO: Add your control notification handler code here
Invalidate();
	UpdateWindow();
		m_strReceived="";
		m_weidu = "";
	m_jingdu = "";
	m_gaodu= "";
	m_shijian = "";
	m_weizhi = "";
	m_shuiping ="";
	m_dingwei ="";
	m_chuizhi ="";
	m_riqi = "";
	m_sudu = "";
	m_data = "";
	UpdateData(FALSE);
}

void CGpstestView::OnCloseButton() 
{
	// TODO: Add your control notification handler code here
   if( !m_ctrlComm1.GetPortOpen())
	 	m_ctrlComm1.SetPortOpen(true); 
	m_ctrlComm1.SetPortOpen(false);
		 
		m_strReceived="";
		m_weidu = "";
	m_jingdu = "";
	m_gaodu= "";
	m_shijian = "";
	m_weizhi = "";
	m_shuiping ="";
	m_dingwei ="";
	m_chuizhi ="";
	m_riqi = "";
	m_sudu = "";
	m_data = "";
	UpdateData(FALSE);
	Invalidate();
	UpdateWindow();
   






	
}

void CGpstestView::OnStartButton() 
{
	// TODO: Add your control notification handler code here
	
	UpdateData(TRUE);
	CString c=m_com;
	CString bote=m_bote;
	CString str=bote+","+"n"+","+"8"+","+"1";
	int s=atoi(c.Mid(3,1));
	if(m_ctrlComm1.GetPortOpen())
		m_ctrlComm1.SetPortOpen(FALSE);
	m_ctrlComm1.SetCommPort(s);              //选择com1
	if( !m_ctrlComm1.GetPortOpen())
		m_ctrlComm1.SetPortOpen(TRUE);//打开串口
	else
		AfxMessageBox("cannot open serial port");
	m_ctrlComm1.SetSettings(str); //波特率4800，无校验，8个数据位，1个停止位
	m_ctrlComm1.SetInputMode(1);      //1：表示以二进制方式检取数据2:十六进制检取数据
    m_ctrlComm1.SetRThreshold(1);  
    //参数1表示每当串口接收缓冲区中有多于或等于1个字符时将引发一个接收数据的OnComm事件
    m_ctrlComm1.SetInputLen(0);   //设置当前接收区数据长度为0
    m_ctrlComm1.GetInput();    //先预读缓冲区以清除残留数据	
	SetTimer(1,1000,NULL);
	
}

void CGpstestView::OnStopButton() 
{
	// TODO: Add your control notification handler code here
		m_ctrlComm1.SetPortOpen(FALSE);

	
}

void CGpstestView::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default
	send();	
	CFormView::OnTimer(nIDEvent);
}

BEGIN_EVENTSINK_MAP(CGpstestView, CFormView)
    //{{AFX_EVENTSINK_MAP(CGpstestView)
	ON_EVENT(CGpstestView, IDC_MSCOMM1, 1 /* OnComm */, OnComm, VTS_NONE)
	//}}AFX_EVENTSINK_MAP
END_EVENTSINK_MAP()

void CGpstestView::OnComm() 
{
	// TODO: Add your control notification handler code here
		VARIANT variant_inp;
	COleSafeArray safearray_inp;
	LONG len,k;
	BYTE rxdata[2048]; //设置BYTE数组 An 8-bit integer that is not signed.
    if(m_ctrlComm1.GetCommEvent()==2) //事件值为2表示接收缓冲区内有字符
	{       ///????????????/////以下你可以根据自己的通信协议加入处理代码
 
        variant_inp=m_ctrlComm1.GetInput();    //读缓冲区
        safearray_inp=variant_inp;           //VARIANT型变量转换为ColeSafeArray型变量
        len=safearray_inp.GetOneDimSize();   //得到有效数据长度
        for(k=0;k<len;k++)
            safearray_inp.GetElement(&k,rxdata+k);      //转换为BYTE型数组
		for(k=0;k<len;k++)                   //将数组转换为Cstring型变量
        {
            BYTE bt=*(char*)(rxdata+k); //字符型  
			
	        m_strReceived+=char(bt); //加入到对应字符串中 
			
		}
 	}
	m_data=m_strReceived;
	 
	
	UpdateData(false);
	
}

void CGpstestView::send()
{
	while((m_strReceived.Find(0x0d)!=-1)&&(m_strReceived.Find(0x0a)!=-1))//循环读取GPGGA定位语句
	  {  
		//startLF 缓冲区中第一个GPS语句结束标志LF的位置 就是下一个GPS开始的标志
		int startLF=m_strReceived.Find(0x0a);
		int endCR=m_strReceived.Find(0x0d); //endCR 第一个GPS语句结束标志CR的位置
		if(startLF>endCR) //找到GPS语句
			endCR=m_strReceived.Find(0x0d,startLF);
		CString msg=m_strReceived.Mid(startLF+1,endCR-startLF-1); //复制这个GPS语句， 
		m_strReceived.Delete(0,endCR+1);    // 从缓冲区删去上个结束标志LF到本句结束标志CR间的数据。
         		//判断是否是$GPGGA语句，不是则跳过本次循环，是则删除$GPGGA,继续处理本句其他语句
		if(msg.Left(6).Compare("$GPGGA")!=0 && msg.Left(6).Compare("$GPGSA")!=0 && msg.Left(6).Compare("$GPGSV")!=0 && msg.Left(6).Compare("$GPRMC")!=0 )
        continue;
		if(msg.Left(6).Compare("$GPGGA")==0)
		{
		msg.Delete(0,msg.Find(',')+1);
	//获取时间信息
		CString hour=msg.Left(2);
		int hour2=atoi(hour)+8;
        CString hour3;
		if (hour2<24)
		{
			hour3.Format("%d",hour2);}
		else
		{
			hour3.Format("%d",hour2-24);
		}
		CString min=msg.Mid(2,2);
		CString sec=msg.Mid(4,2);
	    
			m_shijian=hour3+":"+min+":"+sec;
		

 		msg.Delete(0,msg.Find(',')+1);

    //获取纬度信息，// 
		CString latidegree=msg.Left(2);
        CString laticent=msg.Mid(2,7); //   mid表示从CString中第二个字符开始copy7个
		double latitude=(atof(latidegree)+atof(laticent)/60.0);
		msg.Delete(0,msg.Find(',')+1);  
		msg.Delete(0,msg.Find(',')+1);        //删去N,
    //获取经度信息
		CString longidegree=msg.Left(3);
        CString longicent=msg.Mid(3,7);
		double longitude=(atof(longidegree)+atof(longicent)/60.0);
		msg.Delete(0,msg.Find(',')+1);    //find是找到","所在的位置n, delete从位置0开始删去n+1个字符
		msg.Delete(0,msg.Find(',')+1);    //返回修改后的字符串长度
		msg.Delete(0,msg.Find(',')+1);
		msg.Delete(0,msg.Find(',')+1);
		msg.Delete(0,msg.Find(',')+1);
	//获取高度信息
		CString height=msg.Left(7);
		double high=atof(height);
    // 获得海平面偏差
	    msg.Delete(0,msg.Find(',')+1);
        msg.Delete(0,msg.Find(',')+1);
        CString diff=msg.Left(5);
        double d=atof(diff);     //海平面偏差可以为负值
	    high=high+d; 
		//以后的信息字段忽略
		msg.Delete(0,msg.GetLength());
	//整理数据,存储经纬度和高度
		
		lonti.Format("%f",longitude);   //经度
		lati.Format("%f",latitude);
		highh.Format("%f",high);
		if(longitude!=0)
		{
         m_weidu=lonti;
		 m_jingdu=lati;
		 m_gaodu=highh;
		}
		else
		{
		m_weidu="";
		 m_jingdu="";
		 m_gaodu="";
		}
		
        sa="";
		}
	
	
	else
	{
		if(msg.Left(6).Compare("$GPGSA")==0)
		{
		 msg.Delete(0,msg.Find(',')+1);
		 msg.Delete(0,msg.Find(',')+1);
		 CString dingwei1=msg.Left(1);
		 h=atoi(dingwei1);
		 
    	if (h>1)
		{	m_dingwei=dingwei1+"D定位";
		
		}
    	else
		{
			m_dingwei="未定位";
		

		}
            for (int u=0;u<12;u++)
			{
		    msg.Delete(0,msg.Find(',')+1);
			 sa+=msg.Mid(0,msg.Find(','))+",";
			}
			  msg.Delete(0,msg.Find(',')+1);
		      CString weizhi1=msg.Mid(0,msg.Find(','));
			  if(h>1){
			 m_weizhi=weizhi1;
			  }
			  else
			  {
				  m_weizhi="";
			  }
		
			  msg.Delete(0,msg.Find(',')+1);
			  CString shuiping1=msg.Mid(0,msg.Find(','));
              if(h>1){
				  m_shuiping=shuiping1;
			  }
			  else
			  {
				  m_shuiping="";
			  }
			  msg.Delete(0,msg.Find(',')+1);
			  CString chuizhi1=msg.Mid(0,msg.Find('*'));
			  if(h>1){
				  m_chuizhi=chuizhi1;
		
			  }
			  else
			  {
                  m_chuizhi="";
			  }

			
		
	}
		else
		{    
			 if(msg.Left(6).Compare("$GPRMC")==0)
			 {
			 msg.Delete(0,msg.Find(',')+1);
			 msg.Delete(0,msg.Find(',')+1);
			 msg.Delete(0,msg.Find(',')+1);
			 msg.Delete(0,msg.Find(',')+1);
			 msg.Delete(0,msg.Find(',')+1);
			 msg.Delete(0,msg.Find(',')+1);
			 msg.Delete(0,msg.Find(',')+1);
			 CString sudu1=msg.Mid(0,msg.Find(','));
				 m_sudu=sudu1;
			 msg.Delete(0,msg.Find(',')+1);
			 msg.Delete(0,msg.Find(',')+1);
			 CString riqi1=msg.Left(2);
			 CString riqi2=msg.Mid(2,2);
             CString riqi3=msg.Mid(4,2);
             m_riqi="20"+riqi3+"/"+riqi2+"/"+riqi1;
			 }
			 else
			 {   if(msg.Left(6).Compare("$GPGSV")==0)
				 
			 {
				 msg.Delete(0,msg.Find(',')+1);			
			     msg.Delete(0,msg.Find(',')+1);	
			     
				 if(atoi(msg.Mid(0,msg.Find(',')))==1){
					 
					 msg.Delete(0,msg.Find(',')+1);	
				 
			        CString keshu1=msg.Mid(0,msg.Find(','));
				    n=atoi(keshu1);