Qt QCharts绘制柱状图，柱高和y轴数据刻度不匹配

QCharts绘制柱状图，柱高和y轴数据刻度不匹配

 1 //在项目pro文件中添加以下内容
 2  QT       += charts
 3  
 4  //在.h文件中添加以下内容，注意：需要将头文件及命名空间添加到ui命名空间之前，否则将提示错误
 5  #include <QtCharts/QChartView>
 6  #include <QtCharts/QBarSeries>
 7  #include <QBarCategoryAxis>
 8  #include <QValueAxis>
 9  #include <QBarSet>
10  
11  QT_CHARTS_USE_NAMESPACE
12 
13 创建项目，在main.cpp中添加以下内容：
14 
15  #include "mainwindow.h"
16  #include <QApplication>
17  
18  int main(int argc, char *argv[])
19  {
20   QApplication a(argc, argv);
21  QBarSet *set0 = new QBarSet("警告");
22  QBarSet *set1 = new QBarSet("报警");
23  
24  *set0 << 1 << 2 << 3 << 5 << 4;
25  *set1 << 2 << 4 << 0 << 5 << 4;
26  
27  QBarSeries *series = new QBarSeries();
28  series->append(set0);
29  series->append(set1);
30  
31  QChart *chart = new QChart();
32  //chart->addSeries(series);           /************* 该语句应当放置此位置************/
33  
34  QStringList dateList;
35  dateList << "11" << "12" << "13" << "14" << "15";
36  QBarCategoryAxis *axisX = new QBarCategoryAxis();
37  axisX->append(dateList);
38  axisX->setTitleText("日期");
39  
40  QValueAxis *axisY = new QValueAxis();
41  axisY->setRange(0,10);
42  axisY->setLabelFormat("%d");
43  axisY->setTickCount(6);
44  axisY->setTitleText("次数");
45  
46  chart->setAxisX(axisX, series);                  //设置X坐标轴
47  chart->setAxisY(axisY, series);                  //设置Y坐标轴
48  
49  chart->legend()->setVisible(true);              //设置图例为显示状态
50  chart->legend()->setAlignment(Qt::AlignBottom); //设置图例的显示位置在底部
51  
52  chart->addSeries(series);                 /************* 问题所在************/
53  chart->setTitle("火情记录");
54  chart->setAnimationOptions(QChart::SeriesAnimations);
55  
56  QChartView *chartView = new QChartView(chart);
57  chartView->setRenderHint(QPainter::Antialiasing);
58  
59  MainWindow w;
60  w.setCentralWidget(chartView);
61  w.show();
62  
63  return a.exec();
64  }