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This commit is contained in:
feiyangqingyun
2022-05-18 17:39:04 +08:00
parent 96938b94f9
commit a155ad45d3
32 changed files with 145 additions and 322 deletions
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6
third/qcustomplotdemo/frmexample/frmrealtimedata.cpp
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@@ -16,7 +16,7 @@ frmRealtimeData::~frmRealtimeData()
void frmRealtimeData::showEvent(QShowEvent *)
{
timeStart = QTime::currentTime();
dataTimer.start(0); // Interval 0 means to refresh as fast as possible
dataTimer.start(0);
}
void frmRealtimeData::hideEvent(QHideEvent *)
@@ -35,6 +35,7 @@ void frmRealtimeData::initForm()
ui->customPlot->yAxis->setTickLabelFont(font);
ui->customPlot->legend->setFont(font);
*/
ui->customPlot->addGraph(); // blue line
ui->customPlot->graph(0)->setPen(QPen(QColor(40, 110, 255)));
ui->customPlot->addGraph(); // red line
@@ -51,7 +52,7 @@ void frmRealtimeData::initForm()
connect(ui->customPlot->yAxis, SIGNAL(rangeChanged(QCPRange)), ui->customPlot->yAxis2, SLOT(setRange(QCPRange)));
// setup a timer that repeatedly calls MainWindow::realtimeDataSlot:
connect(&dataTimer, SIGNAL(timeout()), this, SLOT(realtimeDataSlot()));
connect(&dataTimer, SIGNAL(timeout()), this, SLOT(realtimeDataSlot()));
}
void frmRealtimeData::realtimeDataSlot()
@@ -68,6 +69,7 @@ void frmRealtimeData::realtimeDataSlot()
//ui->customPlot->graph(1)->rescaleValueAxis(true);
lastPointKey = key;
}
// make key axis range scroll with the data (at a constant range size of 8):
ui->customPlot->xAxis->setRange(key, 8, Qt::AlignRight);
ui->customPlot->replot();