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#include "LDrawSpectrum.h"
#include <QVBoxLayout>
const QString strName = "性能测试";
LDrawSpectrum::LDrawSpectrum(QWidget *parent)
: QWidget(parent)
{
Qt::WindowFlags flags = Qt::Dialog;
flags |= Qt::WindowMinMaxButtonsHint;
flags |= Qt::WindowCloseButtonHint;
setWindowFlags(flags);
setWindowTitle("QCustomplot " + strName);
m_customPlot = new LXCustomPlot();
m_customPlot->showTracer(false);
// add title layout element:
m_customPlot->plotLayout()->insertRow(0);
m_customPlot->plotLayout()->addElement(0, 0, new QCPTextElement(m_customPlot, strName + " (10条动态曲线)", QFont("微软雅黑", 12, QFont::Bold)));
m_customPlot->legend->setVisible(true);
QFont legendFont = font(); // start out with MainWindow's font..
legendFont.setPointSize(9); // and make a bit smaller for legend
m_customPlot->legend->setFont(legendFont);
m_customPlot->legend->setBrush(QBrush(QColor(255, 255, 255, 230)));
// by default, the legend is in the inset layout of the main axis rect. So this is how we access it to change legend placement:
m_customPlot->axisRect()->insetLayout()->setInsetAlignment(0, Qt::AlignTop | Qt::AlignRight);
// make left and bottom axes always transfer their ranges to right and top axes:
connect(m_customPlot->xAxis, SIGNAL(rangeChanged(QCPRange)), m_customPlot->xAxis2, SLOT(setRange(QCPRange)));
connect(m_customPlot->yAxis, SIGNAL(rangeChanged(QCPRange)), m_customPlot->yAxis2, SLOT(setRange(QCPRange)));
// Allow user to drag axis ranges with mouse, zoom with mouse wheel and select graphs by clicking:
m_customPlot->setInteractions(QCP::iRangeDrag | QCP::iRangeZoom | QCP::iSelectPlottables);
QList<QColor> colors;
colors << QColor(29, 0, 255) << QColor(100, 255, 0) << QColor(255, 106, 227) << QColor(29, 255, 227) << QColor(255, 255, 0)
<< QColor(200, 106, 20) << QColor(255, 255, 255) << QColor(29, 255, 255) << QColor(255, 255, 0) << QColor(29, 106, 255);
for (auto index = 0; index < colors.size(); ++index) {
QCPGraph *pGraph = m_customPlot->addGraph();
pGraph->setName(QString("曲线%1").arg(index + 1));
pGraph->setPen(QPen(colors[index]));
m_pGraphs.append(pGraph);
}
// give the axes some labels:
m_customPlot->xAxis->setLabel("x");
m_customPlot->yAxis->setLabel("y");
// set axes ranges, so we see all data:
m_customPlot->xAxis->setRange(0, 40000);
m_customPlot->yAxis->setRange(-150, 150);
// m_customPlot->rescaleAxes(true);
m_customPlot->replot();
QVBoxLayout *pLayout = new QVBoxLayout;
pLayout->addWidget(m_customPlot);
setLayout(pLayout);
// showMaximized();
resize(QSize(1000, 600));
connect(&m_pUpdateTimer, SIGNAL(timeout()), this, SLOT(update()));
m_pUpdateTimer.start(5);
}
LDrawSpectrum::~LDrawSpectrum()
{
}
void LDrawSpectrum::update()
{
int nCount = 10000;
QList<QVector<double>> yAlis;
QVector<double> x(nCount), y1(nCount), y2(nCount), y3(nCount), y4(nCount), y5(nCount),
y6(nCount), y7(nCount), y8(nCount), y9(nCount), y10(nCount); // initialize with entries 0..100
yAlis << y1 << y2 << y3 << y4 << y5 << y6 << y7 << y8 << y9 << y10;
for (auto index = 0; index < yAlis.size(); ++index) {
for (int i = 0; i < nCount; ++i)
{
x[i] = i*4; // X轴
double data = 0.0;
if (index % 2 == 0) {
data = cos(i);
} else {
data = sin(i);
}
yAlis[index][i] = (qrand() % (100 - index * 10) + 1) * data; // Y轴
}
}
for (auto index = 0; index < m_pGraphs.size(); ++index) {
m_pGraphs[index]->data().data()->clear();
m_pGraphs[index]->addData(x, yAlis[index]);
}
// m_customPlot->replot();
m_customPlot->replot(QCustomPlot::rpQueuedReplot);
}
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