QT基础 柱状图

路奇怪2023-10-20 12:32

目录

1.QBarSeries

2.QHorizontalBarSeries

3.QPercentBarSeries

4.QHorizontalPercentBarSeries

5.QStackedBarSeries

6.QHorizontalStackedBarSeries

从上图得知柱状的基类是QAbstractBarSeries，派生出来分别是柱状图的水平和垂直类，只是类型行不同

1.QBarSeries

bash 复制代码 
//![1]
    QBarSet *set0 = new QBarSet("Jane");
    QBarSet *set1 = new QBarSet("John");
    QBarSet *set2 = new QBarSet("Axel");
    QBarSet *set3 = new QBarSet("Mary");
    QBarSet *set4 = new QBarSet("Samantha");

    *set0 << 1 << 2 << 3 << 4 << 5 << 6;
    *set1 << 5 << 0 << 0 << 4 << 0 << 7;
    *set2 << 3 << 5 << 8 << 13 << 8 << 5;
    *set3 << 5 << 6 << 7 << 3 << 4 << 5;
    *set4 << 9 << 7 << 5 << 3 << 1 << 2;
//![1]

//![2]
    QBarSeries *series = new QBarSeries();
    series->append(set0);
    series->append(set1);
    series->append(set2);
    series->append(set3);
    series->append(set4);

//![2]

//![3]
    QChart *chart = new QChart();
    chart->addSeries(series);
    chart->setTitle("Simple barchart example");
    chart->setAnimationOptions(QChart::SeriesAnimations);
//![3]

//![4]
    QStringList categories;
    categories << "Jan" << "Feb" << "Mar" << "Apr" << "May" << "Jun";
    QBarCategoryAxis *axisX = new QBarCategoryAxis();
    axisX->append(categories);
    chart->addAxis(axisX, Qt::AlignBottom);
    series->attachAxis(axisX);

    QValueAxis *axisY = new QValueAxis();
    axisY->setRange(0,15);
    chart->addAxis(axisY, Qt::AlignLeft);
    series->attachAxis(axisY);
//![4]

//![5]
    chart->legend()->setVisible(true);
    chart->legend()->setAlignment(Qt::AlignBottom);
//![5]

//![6]
    QChartView *chartView = new QChartView(chart);
    chartView->setRenderHint(QPainter::Antialiasing);

2.QHorizontalBarSeries

bash 复制代码 
    //![1]
        QBarSet *set0 = new QBarSet("Jane");
        QBarSet *set1 = new QBarSet("John");
        QBarSet *set2 = new QBarSet("Axel");
        QBarSet *set3 = new QBarSet("Mary");
        QBarSet *set4 = new QBarSet("Samantha");

        *set0 << 1 << 2 << 3 << 4 << 5 << 6;
        *set1 << 5 << 0 << 0 << 4 << 0 << 7;
        *set2 << 3 << 5 << 8 << 13 << 8 << 5;
        *set3 << 5 << 6 << 7 << 3 << 4 << 5;
        *set4 << 9 << 7 << 5 << 3 << 1 << 2;
    //![1]

    //![2]
        QHorizontalBarSeries *series = new QHorizontalBarSeries();
        series->append(set0);
        series->append(set1);
        series->append(set2);
        series->append(set3);
        series->append(set4);
    //![2]

    //![3]
        QChart *chart = new QChart();
        chart->addSeries(series);
        chart->setTitle("Simple horizontal barchart example");
        chart->setAnimationOptions(QChart::SeriesAnimations);


    //![3]

    //![4]
       QStringList categories;
       categories << "Jan" << "Feb" << "Mar" << "Apr" << "May" << "Jun";
       QBarCategoryAxis *axisY = new QBarCategoryAxis();
       axisY->append(categories);
       chart->addAxis(axisY, Qt::AlignLeft);
       series->attachAxis(axisY);
       QValueAxis *axisX = new QValueAxis();
       chart->addAxis(axisX, Qt::AlignBottom);
       series->attachAxis(axisX);
       axisX->applyNiceNumbers();
    //![4]

    //![5]
        chart->legend()->setVisible(true);
        chart->legend()->setAlignment(Qt::AlignBottom);

    //![5]

    //![6]
        QChartView *chartView = new QChartView(chart);
        chartView->setRenderHint(QPainter::Antialiasing);
        
    //![6]

3.QPercentBarSeries

bash 复制代码 
//![1]
    QBarSet *set0 = new QBarSet("Jane");
    QBarSet *set1 = new QBarSet("John");
    QBarSet *set2 = new QBarSet("Axel");
    QBarSet *set3 = new QBarSet("Mary");
    QBarSet *set4 = new QBarSet("Samantha");

    *set0 << 1 << 2 << 3 << 4 << 5 << 6;
    *set1 << 5 << 0 << 0 << 4 << 0 << 7;
    *set2 << 3 << 5 << 8 << 13 << 8 << 5;
    *set3 << 5 << 6 << 7 << 3 << 4 << 5;
    *set4 << 9 << 7 << 5 << 3 << 1 << 2;
//![1]

//![2]
    QPercentBarSeries *series = new QPercentBarSeries();
	series->append(set0);
	series->append(set1);
	series->append(set2);
	series->append(set3);
	series->append(set4);
//![2]

//![3]
    QChart *chart = new QChart();
    chart->addSeries(series);
    chart->setTitle("Simple barchart example");
    chart->setAnimationOptions(QChart::SeriesAnimations);
//![3]

//![4]
    QStringList categories;
	categories << "Jan" << "Feb" << "Mar" << "Apr" << "May" << "Jun";
	QBarCategoryAxis *axisX = new QBarCategoryAxis();
	axisX->append(categories);
	chart->addAxis(axisX, Qt::AlignBottom);
	series->attachAxis(axisX);
	QValueAxis *axisY = new QValueAxis();
	chart->addAxis(axisY, Qt::AlignLeft);
	series->attachAxis(axisY);

//![4]

//![5]
    chart->legend()->setVisible(true);
    chart->legend()->setAlignment(Qt::AlignBottom);
//![5]

//![6]
    QChartView *chartView = new QChartView(chart);
    chartView->setRenderHint(QPainter::Antialiasing);

4.QHorizontalPercentBarSeries

bash 复制代码 
//![1]
    QBarSet *set0 = new QBarSet("Jane");
    QBarSet *set1 = new QBarSet("John");
    QBarSet *set2 = new QBarSet("Axel");
    QBarSet *set3 = new QBarSet("Mary");
    QBarSet *set4 = new QBarSet("Samantha");

    *set0 << 1 << 2 << 3 << 4 << 5 << 6;
    *set1 << 5 << 0 << 0 << 4 << 0 << 7;
    *set2 << 3 << 5 << 8 << 13 << 8 << 5;
    *set3 << 5 << 6 << 7 << 3 << 4 << 5;
    *set4 << 9 << 7 << 5 << 3 << 1 << 2;
//![1]

//![2]
    QHorizontalPercentBarSeries  *series = new QHorizontalPercentBarSeries ();
	series->append(set0);
	series->append(set1);
	series->append(set2);
	series->append(set3);
	series->append(set4);
//![2]

//![3]
    QChart *chart = new QChart();
    chart->addSeries(series);
    chart->setTitle("Simple barchart example");
    chart->setAnimationOptions(QChart::SeriesAnimations);
//![3]

//![4]
    QStringList categories;
	categories << "Jan" << "Feb" << "Mar" << "Apr" << "May" << "Jun";
	QBarCategoryAxis *axisY = new QBarCategoryAxis();
	axisY->append(categories);
	chart->addAxis(axisY, Qt::AlignLeft);
	series->attachAxis(axisY);
	QValueAxis *axisX = new QValueAxis();
	chart->addAxis(axisX, Qt::AlignBottom);
	series->attachAxis(axisX);
//![4]

//![5]
    chart->legend()->setVisible(true);
    chart->legend()->setAlignment(Qt::AlignBottom);
//![5]

//![6]
    QChartView *chartView = new QChartView(chart);
    chartView->setRenderHint(QPainter::Antialiasing);

5.QStackedBarSeries

bash 复制代码 
 //![1]
        QBarSet *set0 = new QBarSet("Jane");
        QBarSet *set1 = new QBarSet("John");
        QBarSet *set2 = new QBarSet("Axel");
        QBarSet *set3 = new QBarSet("Mary");
        QBarSet *set4 = new QBarSet("Samantha");

        *set0 << 1 << 2 << 3 << 4 << 5 << 6;
        *set1 << 5 << 0 << 0 << 4 << 0 << 7;
        *set2 << 3 << 5 << 8 << 13 << 8 << 5;
        *set3 << 5 << 6 << 7 << 3 << 4 << 5;
        *set4 << 9 << 7 << 5 << 3 << 1 << 2;
    //![1]

    //![2]
        QStackedBarSeries *series = new QStackedBarSeries();
        series->append(set0);
        series->append(set1);
        series->append(set2);
        series->append(set3);
        series->append(set4);
    //![2]

    //![3]
        QChart *chart = new QChart();
        chart->addSeries(series);
        chart->setTitle("Simple barchart example");
        chart->setAnimationOptions(QChart::SeriesAnimations);
    //![3]

    //![4]
        QStringList categories;
        categories << "Jan" << "Feb" << "Mar" << "Apr" << "May" << "Jun";
        QBarCategoryAxis *axisX = new QBarCategoryAxis();
        axisX->append(categories);
        chart->addAxis(axisX, Qt::AlignBottom);
        series->attachAxis(axisX);
        QValueAxis *axisY = new QValueAxis();
        chart->addAxis(axisY, Qt::AlignLeft);
        series->attachAxis(axisY);

    //![4]

    //![5]
        chart->legend()->setVisible(true);
        chart->legend()->setAlignment(Qt::AlignBottom);
    //![5]

    //![6]
        QChartView *chartView = new QChartView(chart);
        chartView->setRenderHint(QPainter::Antialiasing);

6.QHorizontalStackedBarSeries

bash 复制代码 
//![1]
    QBarSet *set0 = new QBarSet("Jane");
    QBarSet *set1 = new QBarSet("John");
    QBarSet *set2 = new QBarSet("Axel");
    QBarSet *set3 = new QBarSet("Mary");
    QBarSet *set4 = new QBarSet("Samantha");

    *set0 << 1 << 2 << 3 << 4 << 5 << 6;
    *set1 << 5 << 0 << 0 << 4 << 0 << 7;
    *set2 << 3 << 5 << 8 << 13 << 8 << 5;
    *set3 << 5 << 6 << 7 << 3 << 4 << 5;
    *set4 << 9 << 7 << 5 << 3 << 1 << 2;
//![1]

//![2]
    QHorizontalStackedBarSeries *series = new QHorizontalStackedBarSeries();
    series->append(set0);
    series->append(set1);
    series->append(set2);
    series->append(set3);
    series->append(set4);

//![2]

//![3]
    QChart *chart = new QChart();
    chart->addSeries(series);
    chart->setTitle("Simple horizontal stacked barchart example");
    chart->setAnimationOptions(QChart::SeriesAnimations);
//![3]

//![4]
    QStringList categories;
    categories << "Jan" << "Feb" << "Mar" << "Apr" << "May" << "Jun";
    QBarCategoryAxis *axisY = new QBarCategoryAxis();
    axisY->append(categories);
    chart->addAxis(axisY, Qt::AlignLeft);
    series->attachAxis(axisY);

    QValueAxis *axisX = new QValueAxis();
    chart->addAxis(axisX, Qt::AlignBottom);
    series->attachAxis(axisX);
//![4]

//![5]
    chart->legend()->setVisible(true);
    chart->legend()->setAlignment(Qt::AlignBottom);
//![5]

//![6]
    QChartView *chartView = new QChartView(chart);
    chartView->setRenderHint(QPainter::Antialiasing);
//![6]
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