n(QT_MAJOR_VERSION,

QT_DISABLE_DEPRECATED_BEFORE0x060000

disables

-Wa,-mbig-obj关键在于这两条debug模式编译通过不报错

一个是添加printsupport另一个是解决太大不能编译的问题

core

qcustomplot.hQT_BEGIN_NAMESPACE

namespace

ui_widget.hWidget::Widget(QWidget

*parent):

QCustomPlot(this);customPlot-setGeometry(0,0,width(),height());//

设置图表标题customPlot-plotLayout()-insertRow(0);customPlot-plotLayout()-addElement(0,

new

添加数据曲线customPlot-addGraph();customPlot-graph(0)-setPen(QPen(QColor(40,

110,

蓝色线条customPlot-graph(0)-setName(正弦波形);customPlot-graph(0)-setBrush(QColor(40,

110,

配置坐标轴customPlot-xAxis-setLabel(时间

(s));customPlot-yAxis-setLabel(数值);customPlot-xAxis-setRange(0,

10);customPlot-yAxis-setRange(-1.5,

1.5);//

显示图例customPlot-legend-setVisible(true);customPlot-legend-setFont(QFont(微软雅黑,

9));//

设置定时器用于实时更新数据connect(dataTimer,

QTimer::timeout,

Widget::realtimeDataSlot);dataTimer.start(50);

}Widget::~Widget()

添加数据到曲线customPlot-graph(0)-addData(key,

value);//

使x轴向右滚动customPlot-xAxis-setRange(key,

10,

重绘图表customPlot-replot();lastPointKey

key;}//

(QRandomGenerator::global()-generateDouble()

0.5)