gpsinterface_simulated.cpp

roadnav 内含一个基于wxWindows库的车载导航系统。编译后

/*
 *  Roadnav
 *  GPSInterface_Simulated.cpp
 *
 *  Copyright (c) 2004 - 2006 Richard L. Lynch <[e-mail]>
 *
 *  This program is free software; you can redistribute it and/or
 *  modify it under the terms of version 2 of the GNU General Public License
 *  as published by the Free Software Foundation.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
 
//////////////////////////////////////////////////////////////////////////////
/// \file
///
/// Simulated gps interface module.
///
//////////////////////////////////////////////////////////////////////////////

#ifdef HAVE_CONFIG_H
#  include <config.h>
#endif

#ifdef _MSC_VER
#pragma warning(disable: 4786)
#pragma warning(disable: 4800)
#endif

#include <wx/wx.h>

#include "libroadnav/MapSupport.h"

#include "GPSInterface_Simulated.h"

#ifdef HAVE_SIMULATED_GPS_SUPPORT

using namespace std;

GPSInterface_Simulated::GPSInterface_Simulated()
{
	m_ptGPS.m_fLong = -70.99;
	m_ptGPS.m_fLat = 43.004;
	m_fHeading = 0;
	m_fSpeed = 50;
}

GPSInterface_Simulated::~GPSInterface_Simulated()
{
}

wxString GPSInterface_Simulated::Name()
{
	return wxT("Simulated");
}

IGPSInterface::EGPSStatus GPSInterface_Simulated::GetData(wxGPSEvent * pGPSEvent)
{
	wxString strFixType;
	vector<SSatelliteInfo> vSatelliteInfo;
	long nSatellites = 0;
	
	wxThread::Sleep(10);
	
	m_fHeading += rand() % 10 - 5;

	m_ptGPS.m_fLong += m_fSpeed / 1000000.0 * cos_deg(m_fHeading - 90);
	m_ptGPS.m_fLat -= m_fSpeed / 1000000.0 * sin_deg(m_fHeading - 90);

	while (m_fHeading < 0)
		m_fHeading += 360;
	while (m_fHeading >= 360)
		m_fHeading -= 360;

	strFixType = wxT("SPS");

	nSatellites = 4;
	
	SSatelliteInfo sInfo;
	sInfo.m_iID = 2;
	sInfo.m_fElevation = 42;
	sInfo.m_fAzimuth = 294;
	sInfo.m_fSNR = 45;
	vSatelliteInfo.push_back(sInfo);
		
	*pGPSEvent = wxGPSEvent(true, true, true, m_ptGPS, m_fSpeed, m_fHeading, strFixType, nSatellites, vSatelliteInfo, wxT(""));

	return GPSStatusOK;
}


wxString GPSInterface_Simulated::GetLastError()
{
	return m_strLastError;
}

IGPSInterface::EGPSStatus GPSInterface_Simulated::AutoDetect(wxThread * pThread)
{
	m_strLastError = wxT("Autodetection not supported");
	return GPSStatusAutoDetectionNotSupported;
}

#endif // #ifdef HAVE_SIMULATED_GPS_SUPPORT