本文整理汇总了C++中QwtPlot::insertLegend方法的典型用法代码示例。如果您正苦于以下问题：C++ QwtPlot::insertLegend方法的具体用法？C++ QwtPlot::insertLegend怎么用？C++ QwtPlot::insertLegend使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类QwtPlot的用法示例。
在下文中一共展示了QwtPlot::insertLegend方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: main
int main(int argc, char *argv[])
{
/*const int L = 10;
fftw_complex *in;
fftw_complex *out;
gsl_sf_bessel_k0_scaled(0.684684);
fftw_plan p;
in = (fftw_complex*) fftw_malloc(sizeof(fftw_complex)*L);
out = (fftw_complex*) fftw_malloc(sizeof(fftw_complex)*L);
p = fftw_plan_dft_1d(L, in, out,FFTW_FORWARD,FFTW_MEASURE);
fftw_execute(p);
fftw_destroy_plan(p);
fftw_free(in);
fftw_free(out);
QApplication a(argc, argv);
Ekg w;
w.show();
qDebug() << "sdfsdfsd";
std::cout << "ALKO PROJEKT CPP CHLOSTA!";
return a.exec();*/
QApplication a( argc, argv );
QwtPlot plot;
plot.setTitle( "Plot Demo" );
plot.setCanvasBackground( Qt::white );
plot.setAxisScale( QwtPlot::yLeft, 0.0, 10.0 );
plot.insertLegend( new QwtLegend() );
QwtPlotGrid *grid = new QwtPlotGrid();
grid->attach( &plot );
QwtPlotCurve *curve = new QwtPlotCurve();
curve->setTitle( "Some Points" );
curve->setPen( Qt::blue, 4 ),
curve->setRenderHint( QwtPlotItem::RenderAntialiased, true );
QwtSymbol *symbol = new QwtSymbol( QwtSymbol::Ellipse,
QBrush( Qt::yellow ), QPen( Qt::red, 2 ), QSize( 8, 8 ) );
curve->setSymbol( symbol );
QPolygonF points;
points << QPointF( 0.0, 4.4 ) << QPointF( 1.0, 3.0 )
<< QPointF( 2.0, 4.5 ) << QPointF( 3.0, 6.8 )
<< QPointF( 4.0, 7.9 ) << QPointF( 5.0, 7.1 );
curve->setSamples( points );
curve->attach( &plot );
plot.resize( 600, 400 );
plot.show();
return a.exec();
}示例2: main
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
string videoName = "static";
//
//*** Pixel variation error
// original video pixel variation (RMSE) reading
tic();
vector<double> RMSEO,framesO;
double avrRMSEO;
if(readPixelRMSE("/home/maelle/Desktop/Samples/Static/"+videoName+"/"+videoName+".avi",RMSEO,framesO,avrRMSEO)>0) return -1;
toc();
// fusion stabilized video pixel variation (RMSE) reading
tic();
vector<double> RMSEF,framesF;
double avrRMSEF;
if(readPixelRMSE("/home/maelle/Desktop/Samples/Static/"+videoName+"/"+videoName+"_stable_F.avi",RMSEF,framesF,avrRMSEF)>0) return -1;
toc();
// video processing stabilized video pixel variation (RMSE) reading
tic();
vector<double> RMSEV,framesV;
double avrRMSEV;
if(readPixelRMSE("/home/maelle/Desktop/Samples/Static/"+videoName+"/"+videoName+"_stable_VP.avi",RMSEV,framesV,avrRMSEV)>0) return -1;
toc();
// second round fusion stabilized video pixel variation (RMSE) reading
tic();
vector<double> RMSEF2,framesF2;
double avrRMSEF2;
if(readPixelRMSE("/home/maelle/Desktop/Samples/Static/"+videoName+"/"+videoName+"_stable2_F.avi",RMSEF2,framesF2,avrRMSEF2)>0) return -1;
toc();
// second round video processing stabilized video pixel variation (RMSE) reading
tic();
vector<double> RMSEV2,framesV2;
double avrRMSEV2;
if(readPixelRMSE("/home/maelle/Desktop/Samples/Static/"+videoName+"/"+videoName+"_stable2_VP.avi",RMSEV2,framesV2,avrRMSEV2)>0) return -1;
toc();
// plot first round
QwtPlot plotRMSE;
plotRMSE.setTitle("Root Mean Squared pixel variation per frame");
plotRMSE.setCanvasBackground(Qt::white);
plotRMSE.insertLegend(new QwtLegend());
plotRMSE.setAxisTitle(QwtPlot::yLeft,"RMSE (px)");
plotRMSE.setAxisTitle(QwtPlot::xBottom,"Frame");
QwtPlotMarker *mAO=new QwtPlotMarker();
mAO->setLinePen(QPen(Qt::darkBlue));
mAO->setLineStyle(QwtPlotMarker::HLine);
mAO->setValue(0,avrRMSEO);
mAO->attach(&plotRMSE);
QwtPlotMarker *mAF=new QwtPlotMarker();
mAF->setLinePen(QPen(Qt::darkRed));
mAF->setLineStyle(QwtPlotMarker::HLine);
mAF->setValue(0,avrRMSEF);
mAF->attach(&plotRMSE);
QwtPlotMarker *mAV=new QwtPlotMarker();
mAV->setLinePen(QPen(Qt::darkGreen));
mAV->setLineStyle(QwtPlotMarker::HLine);
mAV->setValue(0,avrRMSEV);
mAV->attach(&plotRMSE);
QwtPlotCurve *curveRMSEO = new QwtPlotCurve();
curveRMSEO->setTitle("Original");
curveRMSEO->setPen(Qt::blue,2);
curveRMSEO->setRenderHint(QwtPlotItem::RenderAntialiased,true);
curveRMSEO->setRawSamples(framesO.data(),RMSEO.data(),framesO.size());
curveRMSEO->attach(&plotRMSE);
QwtPlotCurve *curveRMSEF = new QwtPlotCurve();
curveRMSEF->setTitle("Fusion stabilized");
curveRMSEF->setPen(Qt::red,2);
curveRMSEF->setRenderHint(QwtPlotItem::RenderAntialiased,true);
curveRMSEF->setRawSamples(framesF.data(),RMSEF.data(),framesF.size());
curveRMSEF->attach(&plotRMSE);
QwtPlotCurve *curveRMSEV = new QwtPlotCurve();
curveRMSEV->setTitle("Video Processing stabilized");
curveRMSEV->setPen(Qt::green,2);
curveRMSEV->setRenderHint(QwtPlotItem::RenderAntialiased,true);
curveRMSEV->setRawSamples(framesV.data(),RMSEV.data(),framesV.size());
curveRMSEV->attach(&plotRMSE);
plotRMSE.resize(600,400);
plotRMSE.show();
// plot second round
QwtPlot plotRMSE2;
plotRMSE2.setTitle("Root Mean Squared pixel variation per frame (second round)");
plotRMSE2.setCanvasBackground(Qt::white);
plotRMSE2.insertLegend(new QwtLegend());
plotRMSE2.setAxisTitle(QwtPlot::yLeft,"RMSE (px)");
plotRMSE2.setAxisTitle(QwtPlot::xBottom,"Frame");
QwtPlotMarker *mAO2=new QwtPlotMarker();
mAO2->setLinePen(QPen(Qt::darkBlue));
mAO2->setLineStyle(QwtPlotMarker::HLine);
mAO2->setValue(0,avrRMSEO);
mAO2->attach(&plotRMSE2);
QwtPlotMarker *mAOF=new QwtPlotMarker();
mAOF->setLinePen(QPen(Qt::darkCyan));
mAOF->setLineStyle(QwtPlotMarker::HLine);
//.........这里部分代码省略.........
示例3: main
int main( int argc, char **argv )
{
QApplication a( argc, argv );
QwtPlot plot;
plot.setTitle( "Plot Demo" );
plot.setCanvasBackground( Qt::white );
plot.setAxisScale( QwtPlot::xBottom, -1.0, 6.0 );
QwtLegend *legend = new QwtLegend();
legend->setDefaultItemMode( QwtLegendData::Checkable );
plot.insertLegend( legend );
for ( int i = 0; i < 4; i++ )
{
QwtPlotCurve *curve = new QwtPlotCurve();
curve->setRenderHint( QwtPlotItem::RenderAntialiased, true );
curve->setPen( Qt::blue );
QBrush brush;
QwtSymbol::Style style = QwtSymbol::NoSymbol;
QString title;
if ( i == 0 )
{
brush = Qt::magenta;
style = QwtSymbol::Path;
title = "Path";
}
else if ( i == 2 )
{
brush = Qt::red;
style = QwtSymbol::Graphic;
title = "Graphic";
}
else if ( i == 1 )
{
brush = Qt::yellow;
style = QwtSymbol::SvgDocument;
title = "Svg";
}
else if ( i == 3 )
{
brush = Qt::cyan;
style = QwtSymbol::Pixmap;
title = "Pixmap";
}
MySymbol *symbol = new MySymbol( style, brush );
curve->setSymbol( symbol );
curve->setTitle( title );
curve->setLegendAttribute( QwtPlotCurve::LegendShowSymbol, true );
curve->setLegendIconSize( QSize( 15, 18 ) );
QPolygonF points;
points << QPointF( 0.0, 4.4 ) << QPointF( 1.0, 3.0 )
<< QPointF( 2.0, 4.5 ) << QPointF( 3.0, 6.8 )
<< QPointF( 4.0, 7.9 ) << QPointF( 5.0, 7.1 );
points.translate( 0.0, i * 2.0 );
curve->setSamples( points );
curve->attach( &plot );
}
plot.resize( 600, 400 );
plot.show();
return a.exec();
}