gpsview.cpp

实现GPS定位的常用算法

// gpsView.cpp : implementation of the CGpsView class
//

#include "stdafx.h"
#include "gps.h"

#include "gpsDoc.h"
#include "gpsView.h"

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

long g_lon;
long g_lat;


FILE *fGpsLog=NULL;
SYSTEMTIME sttt;
char strGpsLogTime[256];
char strGpsLogMsg[256];
/////////////////////////////////////////////////////////////////////////////
// CGpsView

IMPLEMENT_DYNCREATE(CGpsView, CView)

BEGIN_MESSAGE_MAP(CGpsView, CView)
	//{{AFX_MSG_MAP(CGpsView)
	ON_WM_CREATE()
	ON_WM_TIMER()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CGpsView construction/destruction

CGpsView::CGpsView()
{
	// TODO: add construction code here
	
}

CGpsView::~CGpsView()
{
}

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

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CGpsView drawing

void CGpsView::OnDraw(CDC* pDC)
{
	CGpsDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);

	// TODO: add draw code for native data here
}

/////////////////////////////////////////////////////////////////////////////
// CGpsView diagnostics

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

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

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

/////////////////////////////////////////////////////////////////////////////
// CGpsView message handlers

int CGpsView::OnCreate(LPCREATESTRUCT lpCreateStruct) 
{
	if (CView::OnCreate(lpCreateStruct) == -1)
		return -1;
	//////////////
	fGpsLog=fopen("\\Gpses\\Gps.log","w+");
	////////////////////////
	// 初始化location、dbpath和pApo...
    ScStartupParams sp;
    ZeroMemory( &sp, sizeof( ScStartupParams ) );
    sp.hWnd = (ScLong)m_hWnd;

    wcscpy( sp.sAppDir, APP_DIR );
    wcscpy( sp.sWorkDir, WORK_DIR );
    sp.reserved = (long)GetDC()->GetSafeHdc();
	sp.pApo     = this;
    
    // 初始化，这里会自己加载SC的设置，所以不用调用ScLoadSetting
    ScLong err = ScInit( &sp );
    if ( 0 != err ){    
        MessageBox( _T("ScInit Failed!") );
		return -1;
    }	

    // 设置接收器    
    err = ScSetApObserver(this);
	err = ScLoadDb( MAP_DIR);
	if ( 0 != err )
    {
        MessageBox( _T("ScLoadDb Failed!") );
        return -1;
    }
	ScGlobalSettings gs;    //SC提供的外界可用的系统设置
	ScQueryGlobalSettings(&gs); 
	ScSetUiPosition( gs.m_Vehicle.position);
	gs_m_ScaleValue=gs.m_ScaleValue;
	ScMapLocate(HAN_WANG_CENTER_LON, HAN_WANG_CENTER_LAT, gs.m_ScaleValue);
	ScZoomScale(-1,-1,0);
	ScRefreshMap( 0 );

    ScOption op;
    op.flags = SC_OP_NORTHUP | SC_OP_SCREENORIENT | SC_OP_RT;
    op.autolocate = 1;
    op.northup = 0; // 1 is not northup
	op.iRecTrk = 0;//轨迹消除
	op.voicevolume = 0;//静音
    ScUpdateOption(&op);
	ScGpsParams  gpsparams;
    ZeroMemory( &gpsparams, sizeof( gpsparams ) );
    gpsparams.option = SC_CO_SPECIFIED;
    gpsparams.dcType = SC_DC_GPS;
    gpsparams.commType = SC_SOCKET_COMM;
    lstrcpy( gpsparams.SocketParam.sDeviceName, _T("GSpace GS-R232") );
	//////////////

	/*if(0 != ScModuleGpsOpen( &gpsparams ) )
	{
		MessageBox( _T("Open GPS Error!"),_T("Error"),MB_OK);
		return -1;
	}*/

	long nFindGPS=ScAutoFindGPS(9600);
	CString strFindGPS;
	strFindGPS.Format(_T("FindGPS:%d"),nFindGPS);
//	MessageBox(strFindGPS);


	m_nGpsTimer=SetTimer(GPSTimer,GPS_INTERVAL,0);
	return 0;
}

void CGpsView::OnTimer(UINT nIDEvent) 
{
	if (nIDEvent==GPSTimer)
	{
		///////////////////////////////GPS location
		ScGPSStatusInfo sGpsInfo;
		memset(&sGpsInfo,0,sizeof(sGpsInfo));
		CDC* pdc=GetDC( );

		RECT rectb;

		rectb.top=10;
		rectb.bottom=70;
		rectb.left=10;
		rectb.right=240;

/*		CString strlonlatB;
		strlonlatB.Format(_T("begore,lon:%d,lat:%d,status:%d"),
			(long)(sGpsInfo.PositionInfo.position.longitude),
			(long)(sGpsInfo.PositionInfo.position.latitude),
			sGpsInfo.PositionInfo.status);
		pdc->DrawText(strlonlatB,&rectb,DT_LEFT);
*/
		ScGetGpsStatusInfo(&sGpsInfo); //获取GPS定位状态
		int nGPS_Status=sGpsInfo.PositionInfo.status;
		if (nGPS_Status==5)
		{
			///////////////
			///////////////GPS Log
			long llon=0;
			long llat=0;
			llon=(long)(sGpsInfo.PositionInfo.position.longitude);
			llat=(long)(sGpsInfo.PositionInfo.position.latitude);
			GetSystemTime(&sttt);
			memset(strGpsLogTime,'\0',sizeof(strGpsLogTime));
			sprintf(strGpsLogTime,"%d:%d:%d.%d",sttt.wHour,sttt.wMinute,sttt.wSecond,sttt.wMilliseconds);
			memset(strGpsLogMsg,'\0',sizeof(strGpsLogMsg));
			sprintf(strGpsLogMsg,"Time:%s,llon is:%d, llat is:%d\n",strGpsLogTime, llon, llat);
			fwrite(strGpsLogMsg,strlen(strGpsLogMsg),1,fGpsLog);
			fflush(fGpsLog);
			
			///////////////End GPS Log
			////////////////

			RECT recta;
		
			recta.top=100;
			recta.bottom=250;
			recta.left=10;
			recta.right=240;
			CString strlonlatA;
			strlonlatA.Format(_T("afterA,lon:%d,lat:%d\n,status:%d"),
				(long)(sGpsInfo.PositionInfo.position.longitude),
				(long)(sGpsInfo.PositionInfo.position.latitude),
				sGpsInfo.PositionInfo.status);
			pdc->DrawText(strlonlatA,&recta,DT_LEFT);
		}

	}
	CView::OnTimer(nIDEvent);
}