/*===================================================================== QGroundControl Open Source Ground Control Station (c) 2009 - 2011 QGROUNDCONTROL PROJECT This file is part of the QGROUNDCONTROL project QGROUNDCONTROL is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. QGROUNDCONTROL 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 QGROUNDCONTROL. If not, see . ======================================================================*/ /** * @file * @brief Definition of UDP connection (server) for unmanned vehicles * @see Flightgear Manual http://mapserver.flightgear.org/getstart.pdf * @author Lorenz Meier * @author Thomas Gubler * */ #include #include #include #include #include #include "QGCFlightGearLink.h" #include "QGC.h" #include #include "MainWindow.h" QGCFlightGearLink::QGCFlightGearLink(UASInterface* mav, QString startupArguments, QString remoteHost, QHostAddress host, quint16 port) : socket(NULL), process(NULL), terraSync(NULL), flightGearVersion(0), startupArguments(startupArguments), _sensorHilEnabled(true) { this->host = host; this->port = port+mav->getUASID(); this->connectState = false; this->currentPort = 49000+mav->getUASID(); this->mav = mav; this->name = tr("FlightGear Link (port:%1)").arg(port); setRemoteHost(remoteHost); } QGCFlightGearLink::~QGCFlightGearLink() { //do not disconnect unless it is connected. //disconnectSimulation will delete the memory that was allocated for proces, terraSync and socket if(connectState){ disconnectSimulation(); } } /** * @brief Runs the thread * **/ void QGCFlightGearLink::run() { exec(); } void QGCFlightGearLink::setPort(int port) { this->port = port; disconnectSimulation(); connectSimulation(); } void QGCFlightGearLink::processError(QProcess::ProcessError err) { switch(err) { case QProcess::FailedToStart: MainWindow::instance()->showCriticalMessage(tr("FlightGear/TerraSync Failed to Start"), tr("Please check if the path and command is correct")); break; case QProcess::Crashed: MainWindow::instance()->showCriticalMessage(tr("FlightGear/TerraSync Crashed"), tr("This is a FlightGear-related problem. Please upgrade FlightGear")); break; case QProcess::Timedout: MainWindow::instance()->showCriticalMessage(tr("FlightGear/TerraSync Start Timed Out"), tr("Please check if the path and command is correct")); break; case QProcess::WriteError: MainWindow::instance()->showCriticalMessage(tr("Could not Communicate with FlightGear/TerraSync"), tr("Please check if the path and command is correct")); break; case QProcess::ReadError: MainWindow::instance()->showCriticalMessage(tr("Could not Communicate with FlightGear/TerraSync"), tr("Please check if the path and command is correct")); break; case QProcess::UnknownError: default: MainWindow::instance()->showCriticalMessage(tr("FlightGear/TerraSync Error"), tr("Please check if the path and command is correct.")); break; } } /** * @param host Hostname in standard formatting, e.g. localhost:14551 or 192.168.1.1:14551 */ void QGCFlightGearLink::setRemoteHost(const QString& host) { if (host.contains(":")) { //qDebug() << "HOST: " << host.split(":").first(); QHostInfo info = QHostInfo::fromName(host.split(":").first()); if (info.error() == QHostInfo::NoError) { // Add host QList hostAddresses = info.addresses(); QHostAddress address; for (int i = 0; i < hostAddresses.size(); i++) { // Exclude loopback IPv4 and all IPv6 addresses if (!hostAddresses.at(i).toString().contains(":")) { address = hostAddresses.at(i); } } currentHost = address; //qDebug() << "Address:" << address.toString(); // Set port according to user input currentPort = host.split(":").last().toInt(); } } else { QHostInfo info = QHostInfo::fromName(host); if (info.error() == QHostInfo::NoError) { // Add host currentHost = info.addresses().first(); } } } void QGCFlightGearLink::updateActuators(uint64_t time, float act1, float act2, float act3, float act4, float act5, float act6, float act7, float act8) { Q_UNUSED(time); Q_UNUSED(act1); Q_UNUSED(act2); Q_UNUSED(act3); Q_UNUSED(act4); Q_UNUSED(act5); Q_UNUSED(act6); Q_UNUSED(act7); Q_UNUSED(act8); } void QGCFlightGearLink::updateControls(uint64_t time, float rollAilerons, float pitchElevator, float yawRudder, float throttle, uint8_t systemMode, uint8_t navMode) { // magnetos,aileron,elevator,rudder,throttle\n //float magnetos = 3.0f; Q_UNUSED(time); Q_UNUSED(systemMode); Q_UNUSED(navMode); if(!isnan(rollAilerons) && !isnan(pitchElevator) && !isnan(yawRudder) && !isnan(throttle)) { QString state("%1\t%2\t%3\t%4\t%5\n"); state = state.arg(rollAilerons).arg(pitchElevator).arg(yawRudder).arg(true).arg(throttle); writeBytes(state.toAscii().constData(), state.length()); // qDebug() << "updated controls" << rollAilerons << pitchElevator << yawRudder << throttle; } else { qDebug() << "HIL: Got NaN values from the hardware: isnan output: roll: " << isnan(rollAilerons) << ", pitch: " << isnan(pitchElevator) << ", yaw: " << isnan(yawRudder) << ", throttle: " << isnan(throttle); } //qDebug() << "Updated controls" << state; } void QGCFlightGearLink::writeBytes(const char* data, qint64 size) { //#define QGCFlightGearLink_DEBUG #ifdef QGCFlightGearLink_DEBUG QString bytes; QString ascii; for (int i=0; i 31 && data[i] < 127) { ascii.append(data[i]); } else { ascii.append(219); } } qDebug() << "Sent" << size << "bytes to" << currentHost.toString() << ":" << currentPort << "data:"; qDebug() << bytes; qDebug() << "ASCII:" << ascii; #endif if (connectState && socket) socket->writeDatagram(data, size, currentHost, currentPort); } /** * @brief Read a number of bytes from the interface. * * @param data Pointer to the data byte array to write the bytes to * @param maxLength The maximum number of bytes to write **/ void QGCFlightGearLink::readBytes() { const qint64 maxLength = 65536; char data[maxLength]; QHostAddress sender; quint16 senderPort; unsigned int s = socket->pendingDatagramSize(); if (s > maxLength) std::cerr << __FILE__ << __LINE__ << " UDP datagram overflow, allowed to read less bytes than datagram size" << std::endl; socket->readDatagram(data, maxLength, &sender, &senderPort); QByteArray b(data, s); // Print string QString state(b); // qDebug() << "FG LINK GOT:" << state; QStringList values = state.split("\t"); // Check length const int nValues = 21; if (values.size() != nValues) { qDebug() << "RETURN LENGTH MISMATCHING EXPECTED" << nValues << "BUT GOT" << values.size(); qDebug() << state; return; } // Parse string float roll, pitch, yaw, rollspeed, pitchspeed, yawspeed; double lat, lon, alt; float ind_airspeed; float true_airspeed; float vx, vy, vz, xacc, yacc, zacc; float diff_pressure; float temperature; float abs_pressure; float mag_variation, mag_dip, xmag_ned, ymag_ned, zmag_ned, xmag_body, ymag_body, zmag_body; lat = values.at(1).toDouble(); lon = values.at(2).toDouble(); alt = values.at(3).toDouble(); roll = values.at(4).toFloat(); pitch = values.at(5).toFloat(); yaw = values.at(6).toFloat(); rollspeed = values.at(7).toFloat(); pitchspeed = values.at(8).toFloat(); yawspeed = values.at(9).toFloat(); xacc = values.at(10).toFloat(); yacc = values.at(11).toFloat(); zacc = values.at(12).toFloat(); vx = values.at(13).toFloat(); vy = values.at(14).toFloat(); vz = values.at(15).toFloat(); true_airspeed = values.at(16).toFloat(); mag_variation = values.at(17).toFloat(); mag_dip = values.at(18).toFloat(); temperature = values.at(19).toFloat(); abs_pressure = values.at(20).toFloat()*1e2; //convert to Pa from hPa //calculate differential pressure const float air_gas_constant = 287.1f; // J/(kg * K) const float absolute_null_celsius = -273.15f; // °C float density = abs_pressure / (air_gas_constant * (temperature - absolute_null_celsius)); diff_pressure = true_airspeed * true_airspeed * density / 2.0f; //qDebug() << "diff_pressure: " << diff_pressure << "abs_pressure: " << abs_pressure; /* Calculate indicated airspeed */ const float air_density_sea_level_15C = 1.225f; //kg/m^3 if (diff_pressure > 0) { ind_airspeed = sqrtf((2.0f*diff_pressure) / air_density_sea_level_15C); } else { ind_airspeed = -sqrtf((2.0f*fabsf(diff_pressure)) / air_density_sea_level_15C); } //qDebug() << "ind_airspeed: " << ind_airspeed << "true_airspeed: " << true_airspeed; // Send updated state //qDebug() << "sensorHilEnabled: " << sensorHilEnabled; if (_sensorHilEnabled) { quint16 fields_changed = 0xFFF; //set all 12 used bits float pressure_alt = alt; xmag_ned = cosf(mag_variation); ymag_ned = sinf(mag_variation); zmag_ned = sinf(mag_dip); float tempMagLength = sqrtf(xmag_ned*xmag_ned + ymag_ned*ymag_ned + zmag_ned*zmag_ned); xmag_ned = xmag_ned / tempMagLength; ymag_ned = ymag_ned / tempMagLength; zmag_ned = zmag_ned / tempMagLength; //transform magnetic measurement to body frame coordinates double cosPhi = cos(roll); double sinPhi = sin(roll); double cosThe = cos(pitch); double sinThe = sin(pitch); double cosPsi = cos(yaw); double sinPsi = sin(yaw); float R_B_N[3][3]; R_B_N[0][0] = cosThe * cosPsi; R_B_N[0][1] = -cosPhi * sinPsi + sinPhi * sinThe * cosPsi; R_B_N[0][2] = sinPhi * sinPsi + cosPhi * sinThe * cosPsi; R_B_N[1][0] = cosThe * sinPsi; R_B_N[1][1] = cosPhi * cosPsi + sinPhi * sinThe * sinPsi; R_B_N[1][2] = -sinPhi * cosPsi + cosPhi * sinThe * sinPsi; R_B_N[2][0] = -sinThe; R_B_N[2][1] = sinPhi * cosThe; R_B_N[2][2] = cosPhi * cosThe; Eigen::Matrix3f R_B_N_M = Eigen::Map((float*)R_B_N).eval(); Eigen::Vector3f mag_ned(xmag_ned, ymag_ned, zmag_ned); Eigen::Vector3f mag_body = R_B_N_M * mag_ned; xmag_body = mag_body(0); ymag_body = mag_body(1); zmag_body = mag_body(2); emit sensorHilRawImuChanged(QGC::groundTimeUsecs(), xacc, yacc, zacc, rollspeed, pitchspeed, yawspeed, xmag_body, ymag_body, zmag_body, abs_pressure*1e-2f, diff_pressure*1e-2f, pressure_alt, temperature, fields_changed); //Pressure in hPa for mavlink // qDebug() << "sensorHilRawImuChanged " << xacc << yacc << zacc << rollspeed << pitchspeed << yawspeed << xmag << ymag << zmag << abs_pressure << diff_pressure << pressure_alt << temperature; int gps_fix_type = 3; float eph = 0.3f; float epv = 0.6f; float vel = sqrt(vx*vx + vy*vy + vz*vz); float cog = yaw; int satellites = 8; emit sensorHilGpsChanged(QGC::groundTimeUsecs(), lat, lon, alt, gps_fix_type, eph, epv, vel, vx, vy, vz, cog, satellites); // qDebug() << "sensorHilGpsChanged " << lat << lon << alt << vel; } else { emit hilStateChanged(QGC::groundTimeUsecs(), roll, pitch, yaw, rollspeed, pitchspeed, yawspeed, lat, lon, alt, vx, vy, vz, ind_airspeed, true_airspeed, xacc, yacc, zacc); //qDebug() << "hilStateChanged " << (int32_t)lat << (int32_t)lon << (int32_t)alt; } // // Echo data for debugging purposes // std::cerr << __FILE__ << __LINE__ << "Received datagram:" << std::endl; // int i; // for (i=0; ipendingDatagramSize(); } /** * @brief Disconnect the connection. * * @return True if connection has been disconnected, false if connection couldn't be disconnected. **/ bool QGCFlightGearLink::disconnectSimulation() { disconnect(process, SIGNAL(error(QProcess::ProcessError)), this, SLOT(processError(QProcess::ProcessError))); disconnect(mav, SIGNAL(hilControlsChanged(uint64_t, float, float, float, float, uint8_t, uint8_t)), this, SLOT(updateControls(uint64_t,float,float,float,float,uint8_t,uint8_t))); disconnect(this, SIGNAL(hilStateChanged(quint64, float, float, float, float,float, float, double, double, double, float, float, float, float, float, float, float, float)), mav, SLOT(sendHilState(quint64, float, float, float, float,float, float, double, double, double, float, float, float, float, float, float, float, float))); disconnect(this, SIGNAL(sensorHilGpsChanged(quint64, double, double, double, int, float, float, float, float, float, float, float, int)), mav, SLOT(sendHilGps(quint64, double, double, double, int, float, float, float, float, float, float, float, int))); disconnect(this, SIGNAL(sensorHilRawImuChanged(quint64,float,float,float,float,float,float,float,float,float,float,float,float,float,quint32)), mav, SLOT(sendHilSensors(quint64,float,float,float,float,float,float,float,float,float,float,float,float,float,quint32))); if (process) { process->close(); delete process; process = NULL; } if (terraSync) { terraSync->close(); delete terraSync; terraSync = NULL; } if (socket) { socket->close(); delete socket; socket = NULL; } connectState = false; emit simulationDisconnected(); emit simulationConnected(false); return !connectState; } /** * @brief Connect the connection. * * @return True if connection has been established, false if connection couldn't be established. **/ bool QGCFlightGearLink::connectSimulation() { qDebug() << "STARTING FLIGHTGEAR LINK"; if (!mav) return false; socket = new QUdpSocket(this); connectState = socket->bind(host, port); QObject::connect(socket, SIGNAL(readyRead()), this, SLOT(readBytes())); process = new QProcess(this); terraSync = new QProcess(this); connect(mav, SIGNAL(hilControlsChanged(uint64_t, float, float, float, float, uint8_t, uint8_t)), this, SLOT(updateControls(uint64_t,float,float,float,float,uint8_t,uint8_t))); connect(this, SIGNAL(hilStateChanged(quint64, float, float, float, float,float, float, double, double, double, float, float, float, float, float, float, float, float)), mav, SLOT(sendHilState(quint64, float, float, float, float,float, float, double, double, double, float, float, float, float, float, float, float, float))); connect(this, SIGNAL(sensorHilGpsChanged(quint64, double, double, double, int, float, float, float, float, float, float, float, int)), mav, SLOT(sendHilGps(quint64, double, double, double, int, float, float, float, float, float, float, float, int))); connect(this, SIGNAL(sensorHilRawImuChanged(quint64,float,float,float,float,float,float,float,float,float,float,float,float,float,quint32)), mav, SLOT(sendHilSensors(quint64,float,float,float,float,float,float,float,float,float,float,float,float,float,quint32))); UAS* uas = dynamic_cast(mav); if (uas) { uas->startHil(); } //connect(&refreshTimer, SIGNAL(timeout()), this, SLOT(sendUAVUpdate())); // Catch process error QObject::connect( process, SIGNAL(error(QProcess::ProcessError)), this, SLOT(processError(QProcess::ProcessError))); QObject::connect( terraSync, SIGNAL(error(QProcess::ProcessError)), this, SLOT(processError(QProcess::ProcessError))); // Start Flightgear QStringList flightGearArguments; QString processFgfs; QString processTerraSync; QString fgRoot; QString fgScenery; QString terraSyncScenery; QString fgAircraft; #ifdef Q_OS_MACX processFgfs = "/Applications/FlightGear.app/Contents/Resources/fgfs"; processTerraSync = "/Applications/FlightGear.app/Contents/Resources/terrasync"; //fgRoot = "/Applications/FlightGear.app/Contents/Resources/data"; fgScenery = "/Applications/FlightGear.app/Contents/Resources/data/Scenery"; terraSyncScenery = "/Applications/FlightGear.app/Contents/Resources/data/Scenery-TerraSync"; // /Applications/FlightGear.app/Contents/Resources/data/Scenery: #endif #ifdef Q_OS_WIN32 processFgfs = "C:\\Program Files (x86)\\FlightGear\\bin\\Win32\\fgfs"; //fgRoot = "C:\\Program Files (x86)\\FlightGear\\data"; fgScenery = "C:\\Program Files (x86)\\FlightGear\\data\\Scenery"; terraSyncScenery = "C:\\Program Files (x86)\\FlightGear\\data\\Scenery-Terrasync"; #endif #ifdef Q_OS_LINUX processFgfs = "fgfs"; //fgRoot = "/usr/share/flightgear"; QString fgScenery1 = "/usr/share/flightgear/data/Scenery"; QString fgScenery2 = "/usr/share/games/flightgear/Scenery"; // Ubuntu default location fgScenery = ""; //Flightgear can also start with fgScenery = "" if (QDir(fgScenery1).exists()) fgScenery = fgScenery1; else if (QDir(fgScenery2).exists()) fgScenery = fgScenery2; processTerraSync = "nice"; //according to http://wiki.flightgear.org/TerraSync, run with lower priority terraSyncScenery = QDir::homePath() + "/.terrasync/Scenery"; //according to http://wiki.flightgear.org/TerraSync a separate directory is used #endif fgAircraft = QApplication::applicationDirPath() + "/files/flightgear/Aircraft"; // Sanity checks bool sane = true; // QFileInfo executable(processFgfs); // if (!executable.isExecutable()) // { // MainWindow::instance()->showCriticalMessage(tr("FlightGear Failed to Start"), tr("FlightGear was not found at %1").arg(processFgfs)); // sane = false; // } // QFileInfo root(fgRoot); // if (!root.isDir()) // { // MainWindow::instance()->showCriticalMessage(tr("FlightGear Failed to Start"), tr("FlightGear data directory was not found at %1").arg(fgRoot)); // sane = false; // } // QFileInfo scenery(fgScenery); // if (!scenery.isDir()) // { // MainWindow::instance()->showCriticalMessage(tr("FlightGear Failed to Start"), tr("FlightGear scenery directory was not found at %1").arg(fgScenery)); // sane = false; // } // QFileInfo terraSyncExecutableInfo(processTerraSync); // if (!terraSyncExecutableInfo.isExecutable()) // { // MainWindow::instance()->showCriticalMessage(tr("FlightGear Failed to Start"), tr("TerraSync was not found at %1").arg(processTerraSync)); // sane = false; // } if (!sane) return false; // --atlas=socket,out,1,localhost,5505,udp // terrasync -p 5505 -S -d /usr/local/share/TerraSync /*Prepare FlightGear Arguments */ //flightGearArguments << QString("--fg-root=%1").arg(fgRoot); flightGearArguments << QString("--fg-scenery=%1:%2").arg(fgScenery).arg(terraSyncScenery); //according to http://wiki.flightgear.org/TerraSync a separate directory is used flightGearArguments << QString("--fg-aircraft=%1").arg(fgAircraft); if (mav->getSystemType() == MAV_TYPE_QUADROTOR) { flightGearArguments << QString("--generic=socket,out,50,127.0.0.1,%1,udp,qgroundcontrol-quadrotor").arg(port); flightGearArguments << QString("--generic=socket,in,50,127.0.0.1,%1,udp,qgroundcontrol-quadrotor").arg(currentPort); } else { flightGearArguments << QString("--generic=socket,out,50,127.0.0.1,%1,udp,qgroundcontrol-fixed-wing").arg(port); flightGearArguments << QString("--generic=socket,in,50,127.0.0.1,%1,udp,qgroundcontrol-fixed-wing").arg(currentPort); } flightGearArguments << "--atlas=socket,out,1,localhost,5505,udp"; // flightGearArguments << "--in-air"; // flightGearArguments << "--roll=0"; // flightGearArguments << "--pitch=0"; // flightGearArguments << "--vc=90"; // flightGearArguments << "--heading=300"; // flightGearArguments << "--timeofday=noon"; // flightGearArguments << "--disable-hud-3d"; // flightGearArguments << "--disable-fullscreen"; // flightGearArguments << "--geometry=400x300"; // flightGearArguments << "--disable-anti-alias-hud"; // flightGearArguments << "--wind=0@0"; // flightGearArguments << "--turbulence=0.0"; // flightGearArguments << "--prop:/sim/frame-rate-throttle-hz=30"; // flightGearArguments << "--control=mouse"; // flightGearArguments << "--disable-intro-music"; // flightGearArguments << "--disable-sound"; // flightGearArguments << "--disable-random-objects"; // flightGearArguments << "--disable-ai-models"; // flightGearArguments << "--shading-flat"; // flightGearArguments << "--fog-disable"; // flightGearArguments << "--disable-specular-highlight"; // //flightGearArguments << "--disable-skyblend"; // flightGearArguments << "--disable-random-objects"; // flightGearArguments << "--disable-panel"; // //flightGearArguments << "--disable-horizon-effect"; // flightGearArguments << "--disable-clouds"; // flightGearArguments << "--fdm=jsb"; // flightGearArguments << "--units-meters"; //XXX: check: the protocol xml has already a conversion from feet to m? // flightGearArguments << "--notrim"; flightGearArguments += startupArguments.split(" "); if (mav->getSystemType() == MAV_TYPE_QUADROTOR) { // Start all engines of the quad flightGearArguments << "--prop:/engines/engine[0]/running=true"; flightGearArguments << "--prop:/engines/engine[1]/running=true"; flightGearArguments << "--prop:/engines/engine[2]/running=true"; flightGearArguments << "--prop:/engines/engine[3]/running=true"; } else { flightGearArguments << "--prop:/engines/engine/running=true"; } flightGearArguments << QString("--lat=%1").arg(UASManager::instance()->getHomeLatitude()); flightGearArguments << QString("--lon=%1").arg(UASManager::instance()->getHomeLongitude()); //The altitude is not set because an altitude not equal to the ground altitude leads to a non-zero default throttle in flightgear //Without the altitude-setting the aircraft is positioned on the ground //flightGearArguments << QString("--altitude=%1").arg(UASManager::instance()->getHomeAltitude()); // Add new argument with this: flightGearArguments << ""; //flightGearArguments << QString("--aircraft=%2").arg(aircraft); /*Prepare TerraSync Arguments */ QStringList terraSyncArguments; #ifdef Q_OS_LINUX terraSyncArguments << "terrasync"; #endif terraSyncArguments << "-p"; terraSyncArguments << "5505"; terraSyncArguments << "-S"; terraSyncArguments << "-d"; terraSyncArguments << terraSyncScenery; //according to http://wiki.flightgear.org/TerraSync a separate directory is used #ifdef Q_OS_LINUX /* Setting environment */ QProcessEnvironment env = QProcessEnvironment::systemEnvironment(); process->setProcessEnvironment(env); terraSync->setProcessEnvironment(env); #endif // connect (terraSync, SIGNAL(readyReadStandardOutput()), this, SLOT(printTerraSyncOutput())); // connect (terraSync, SIGNAL(readyReadStandardError()), this, SLOT(printTerraSyncError())); terraSync->start(processTerraSync, terraSyncArguments); // qDebug() << "STARTING: " << processTerraSync << terraSyncArguments; process->start(processFgfs, flightGearArguments); // connect (process, SIGNAL(readyReadStandardOutput()), this, SLOT(printFgfsOutput())); // connect (process, SIGNAL(readyReadStandardError()), this, SLOT(printFgfsError())); emit simulationConnected(connectState); if (connectState) { emit simulationConnected(); connectionStartTime = QGC::groundTimeUsecs()/1000; } qDebug() << "STARTING SIM"; // qDebug() << "STARTING: " << processFgfs << flightGearArguments; start(LowPriority); return connectState; } void QGCFlightGearLink::printTerraSyncOutput() { qDebug() << "TerraSync stdout:"; QByteArray byteArray = terraSync->readAllStandardOutput(); QStringList strLines = QString(byteArray).split("\n"); foreach (QString line, strLines){ qDebug() << line; } } void QGCFlightGearLink::printTerraSyncError() { qDebug() << "TerraSync stderr:"; QByteArray byteArray = terraSync->readAllStandardError(); QStringList strLines = QString(byteArray).split("\n"); foreach (QString line, strLines){ qDebug() << line; } } void QGCFlightGearLink::printFgfsOutput() { qDebug() << "fgfs stdout:"; QByteArray byteArray = process->readAllStandardOutput(); QStringList strLines = QString(byteArray).split("\n"); foreach (QString line, strLines){ qDebug() << line; } } void QGCFlightGearLink::printFgfsError() { qDebug() << "fgfs stderr:"; QByteArray byteArray = process->readAllStandardError(); QStringList strLines = QString(byteArray).split("\n"); foreach (QString line, strLines){ qDebug() << line; } } /** * @brief Set the startup arguments used to start flightgear * **/ void QGCFlightGearLink::setStartupArguments(QString startupArguments) { this->startupArguments = startupArguments; } /** * @brief Check if connection is active. * * @return True if link is connected, false otherwise. **/ bool QGCFlightGearLink::isConnected() { return connectState; } QString QGCFlightGearLink::getName() { return name; } QString QGCFlightGearLink::getRemoteHost() { return QString("%1:%2").arg(currentHost.toString(), currentPort); } void QGCFlightGearLink::setName(QString name) { this->name = name; // emit nameChanged(this->name); }