一款有意思的 Qt 飞行仪表控件

最近在网上偶然发现一款Qt飞行仪表板控件，真的很酷哦！ 
是一款开源软件， 
直接编译运行： 
 
美工还是不错的！ 
控件操作非常简单：

void MainWindow::timerEvent( QTimerEvent *event )
{
    /////////////////////////////////
    QMainWindow::timerEvent( event );
    /////////////////////////////////
    float timeStep = m_time.restart();
    m_realTime = m_realTime + timeStep / 1000.0f;
    float alpha     =  0.0f;
    float beta      =  0.0f;
    float roll      =  0.0f;
    float pitch     =  0.0f;
    float heading   =  0.0f;
    float slipSkid  =  0.0f;
    float turnRate  =  0.0f;
    float devH      =  0.0f;
    float devV      =  0.0f;
    float airspeed  =  0.0f;
    float altitude  =  0.0f;
    float pressure  = 28.0f;
    float climbRate =  0.0f;
    float machNo    =  0.0f;
    float adf       =  0.0f;
    float dme       =  0.0f;
    if ( m_ui->pushButtonAuto->isChecked() )
    {
        alpha     =   20.0f * sin( m_realTime /  10.0f );
        beta      =   15.0f * sin( m_realTime /  10.0f );
        roll      =  180.0f * sin( m_realTime /  10.0f );
        pitch     =   90.0f * sin( m_realTime /  20.0f );
        heading   =  360.0f * sin( m_realTime /  40.0f );
        slipSkid  =    1.0f * sin( m_realTime /  10.0f );
        turnRate  =    7.0f * sin( m_realTime /  10.0f );
        devH      =    1.0f * sin( m_realTime /  20.0f );
        devV      =    1.0f * sin( m_realTime /  20.0f );
        airspeed  =  125.0f * sin( m_realTime /  40.0f ) +  125.0f;
        altitude  = 9000.0f * sin( m_realTime /  40.0f ) + 9000.0f;
        pressure  =    2.0f * sin( m_realTime /  20.0f ) +   30.0f;
        climbRate =  650.0f * sin( m_realTime /  20.0f );
        machNo    = airspeed / 650.0f;
        adf       = -360.0f * sin( m_realTime /  50.0f );
        dme       =   99.0f * sin( m_realTime / 100.0f );
        m_ui->spinBoxAlpha ->setValue( alpha     );
        m_ui->spinBoxBeta  ->setValue( beta      );
        m_ui->spinBoxRoll  ->setValue( roll      );
        m_ui->spinBoxPitch ->setValue( pitch     );
        m_ui->spinBoxSlip  ->setValue( slipSkid  );
        m_ui->spinBoxTurn  ->setValue( turnRate  );
        m_ui->spinBoxDevH  ->setValue( devH      );
        m_ui->spinBoxDevV  ->setValue( devV      );
        m_ui->spinBoxHead  ->setValue( heading   );
        m_ui->spinBoxSpeed ->setValue( airspeed  );
        m_ui->spinBoxMach  ->setValue( machNo    );
        m_ui->spinBoxAlt   ->setValue( altitude  );
        m_ui->spinBoxPress ->setValue( pressure  );
        m_ui->spinBoxClimb ->setValue( climbRate );
        m_ui->spinBoxADF   ->setValue( adf       );
        m_ui->spinBoxDME   ->setValue( dme       );
    }
    else
    {
        alpha     = (float)m_ui->spinBoxAlpha ->value();
        beta      = (float)m_ui->spinBoxBeta  ->value();
        roll      = (float)m_ui->spinBoxRoll  ->value();
        pitch     = (float)m_ui->spinBoxPitch ->value();
        heading   = (float)m_ui->spinBoxHead  ->value();
        slipSkid  = (float)m_ui->spinBoxSlip  ->value();
        turnRate  = (float)m_ui->spinBoxTurn  ->value();
        devH      = (float)m_ui->spinBoxDevH  ->value();
        devV      = (float)m_ui->spinBoxDevV  ->value();
        airspeed  = (float)m_ui->spinBoxSpeed ->value();
        pressure  = (float)m_ui->spinBoxPress ->value();
        altitude  = (float)m_ui->spinBoxAlt   ->value();
        climbRate = (float)m_ui->spinBoxClimb ->value();
        machNo    = (float)m_ui->spinBoxMach  ->value();
        adf       = (float)m_ui->spinBoxADF   ->value();
        dme       = (float)m_ui->spinBoxDME   ->value();
    }
    m_ui->widgetPFD->setFlightPathMarker ( alpha, beta );
    m_ui->widgetPFD->setRoll          ( roll     );
    m_ui->widgetPFD->setPitch         ( pitch     );
    m_ui->widgetPFD->setSlipSkid      ( slipSkid  );
    m_ui->widgetPFD->setTurnRate      ( turnRate / 6.0f );
    m_ui->widgetPFD->setDevH          ( devH      );
    m_ui->widgetPFD->setDevV          ( devV      );
    m_ui->widgetPFD->setHeading       ( heading   );
    m_ui->widgetPFD->setAirspeed      ( airspeed  );
    m_ui->widgetPFD->setMachNo        ( machNo    );
    m_ui->widgetPFD->setAltitude      ( altitude  );
    m_ui->widgetPFD->setPressure      ( pressure  );
    m_ui->widgetPFD->setClimbRate     ( climbRate / 100.0f );
    m_ui->widgetNAV->setHeading    ( heading   );
    m_ui->widgetNAV->setHeadingBug ( 0.0f );
    m_ui->widgetNAV->setCourse     ( 0.0f );
    m_ui->widgetNAV->setBearing    ( adf  , true );
    m_ui->widgetNAV->setDeviation  ( devH , true );
    m_ui->widgetNAV->setDistance   ( dme  , true );
    m_ui->widgetSix->setRoll      ( roll      );
    m_ui->widgetSix->setPitch     ( pitch     );
    m_ui->widgetSix->setAltitude  ( altitude  );
    m_ui->widgetSix->setPressure  ( pressure  );
    m_ui->widgetSix->setAirspeed  ( airspeed  );
    m_ui->widgetSix->setHeading   ( heading   );
    m_ui->widgetSix->setSlipSkid  ( slipSkid * 15.0f );
    m_ui->widgetSix->setTurnRate  ( turnRate  );
    m_ui->widgetSix->setClimbRate ( climbRate );
    m_ui->widgetPFD->update();
    m_ui->widgetNAV->update();
    m_ui->widgetSix->update();
    m_steps++;
}

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类似的工业仪表控件网上还有很多。真心感觉Qt拯救了C++！

http://blog.csdn.net/goldenhawking/article/details/78817426