用qt生成叠加速度谱代码

下面是一个使用Qt生成叠加速度谱的代码示例：

#include <QApplication>
#include <QtCharts/QChartView>
#include <QtCharts/QLineSeries>
#include <QtCharts/QValueAxis>
#include <QtCharts/QLogValueAxis>
#include <QtCharts/QChart>
#include <QtCharts/QChartGlobal>
#include <QtCharts/QAreaSeries>
#include <QtCharts/QSplineSeries>

QT_CHARTS_USE_NAMESPACE

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);

    // 创建速度谱数据
    QLineSeries *velocitySeries = new QLineSeries();
    velocitySeries->append(0, 2000);
    velocitySeries->append(100, 2500);
    velocitySeries->append(200, 3000);
    velocitySeries->append(300, 3500);
    velocitySeries->append(400, 4000);
    velocitySeries->append(500, 4500);
    velocitySeries->append(600, 5000);
    velocitySeries->setName("Velocity");

    // 创建深度轴和速度轴
    QValueAxis *depthAxis = new QValueAxis();
    depthAxis->setTitleText("Depth (m)");
    depthAxis->setRange(0, 600);

    QLogValueAxis *velocityAxis = new QLogValueAxis();
    velocityAxis->setTitleText("Velocity (m/s)");
    velocityAxis->setLabelFormat("%.0f");
    velocityAxis->setMinorTickCount(10);
    velocityAxis->setBase(10);
    velocityAxis->setRange(1000, 10000);

    // 创建速度谱图表
    QChart *velocityChart = new QChart();
    velocityChart->addSeries(velocitySeries);
    velocityChart->setTitle("Velocity Profile");
    velocityChart->setAnimationOptions(QChart::AllAnimations);
    velocityChart->setMargins(QMargins(0, 0, 0, 0));
    velocityChart->setAxisX(depthAxis, velocitySeries);
    velocityChart->setAxisY(velocityAxis, velocitySeries);

    // 创建叠加速度谱数据
    QSplineSeries *overburdenSeries = new QSplineSeries();
    overburdenSeries->setName("Overburden");

    for (int i = 0; i <= 600; i += 10) {
        double velocity = velocitySeries->at(i / 10).y();
        double overburden = 1000 * i * velocity / 2;
        overburdenSeries->append(i, overburden);
    }

    // 创建叠加速度谱图表
    QChart *overburdenChart = new QChart();
    overburdenChart->addSeries(overburdenSeries);
    overburdenChart->setTitle("Overburden");
    overburdenChart->setAnimationOptions(QChart::AllAnimations);
    overburdenChart->setMargins(QMargins(0, 0, 0, 0));
    overburdenChart->setAxisX(depthAxis, overburdenSeries);
    overburdenChart->setAxisY(new QValueAxis(), overburdenSeries);

    // 创建叠加速度谱区域
    QAreaSeries *areaSeries = new QAreaSeries(velocitySeries, overburdenSeries);
    areaSeries->setName("Area");
    areaSeries->setOpacity(0.5);

    // 创建叠加速度谱图表
    QChart *stackedChart = new QChart();
    stackedChart->addSeries(overburdenSeries);
    stackedChart->addSeries(velocitySeries);
    stackedChart->addSeries(areaSeries);
    stackedChart->setTitle("Stacked Velocity Profile");
    stackedChart->setAnimationOptions(QChart::AllAnimations);
    stackedChart->setMargins(QMargins(0, 0, 0, 0));
    stackedChart->setAxisX(depthAxis, overburdenSeries);
    stackedChart->setAxisY(velocityAxis, velocitySeries);

    // 创建速度谱图表视图
    QChartView *velocityChartView = new QChartView(velocityChart);
    velocityChartView->setRenderHint(QPainter::Antialiasing);
    velocityChartView->setMinimumSize(800, 400);

    // 创建叠加速度谱图表视图
    QChartView *stackedChartView = new QChartView(stackedChart);
    stackedChartView->setRenderHint(QPainter::Antialiasing);
    stackedChartView->setMinimumSize(800, 400);

    // 创建主窗口
    QWidget *mainWindow = new QWidget();
    QVBoxLayout *mainLayout = new QVBoxLayout();
    mainLayout->addWidget(velocityChartView);
    mainLayout->addWidget(stackedChartView);
    mainWindow->setLayout(mainLayout);
    mainWindow->show();

    return a.exec();
}

这个示例代码使用了Qt Charts模块，创建了两个图表：速度谱和叠加速度谱。它还使用了QValueAxis和QLogValueAxis类来设置深度轴和速度轴，并使用QLineSeries、QSplineSeries和QAreaSeries类来创建速度谱数据、叠加速度谱数据和叠加速度谱区域。最后，它将速度谱图表和叠加速度谱图表添加到两个QChartView控件中，并将它们放置在一个垂直布局中的QWidget窗口中。