企业网站建设之后,google 网站打不开,公司招聘网站,百度收录wordpress#xff08;一#xff09;QCustomPlot常见属性设置、多曲线绘制、动态曲线绘制、生成游标、矩形放大等功能实现-CSDN博客
关键代码#xff1a;
QT core gui printsupport
使用上面文章中的代码跑起来的程序效果图#xff1a; 我的学习过程#xff1a;
最开始初…一QCustomPlot常见属性设置、多曲线绘制、动态曲线绘制、生成游标、矩形放大等功能实现-CSDN博客
关键代码
QT core gui printsupport
使用上面文章中的代码跑起来的程序效果图 我的学习过程
最开始初始化后QCustomPlot对象显示图 1.x轴名称和刻度值 m_Multichannel-xAxis-setLabel(x轴); m_Multichannel-xAxis-setNumberFormat(f); //x轴刻度值格式 2. 刻度值精度
m_Multichannel-xAxis-setNumberPrecision(3); //刻度值精度 3. x轴标签的字体
m_Multichannel-xAxis-setLabelFont(QFont(font().family(),20)); //设置标签字体大小 4. x轴刻度数量和刻度范围
m_Multichannel-xAxis-ticker()-setTickCount(11); //刻度数量
m_Multichannel-xAxis-setRange(0,10,Qt::AlignLeft); //范围
0---9
其实一共11个刻度
01234
56789
10 5. x轴刻度范围
m_Multichannel-xAxis-setRange(0,20,Qt::AlignLeft); //范围
0---20
11个刻度 6. x轴刻度范围 m_Multichannel-xAxis-setRange(0,30,Qt::AlignLeft); 0---30 11个刻度 7. x轴属性集合 m_Multichannel-xAxis-ticker()-setTickCount(21); //刻度数量m_Multichannel-xAxis-setNumberFormat(f); //x轴刻度值格式m_Multichannel-xAxis-setNumberPrecision(0); //刻度值精度m_Multichannel-xAxis-setRange(0,30,Qt::AlignLeft); //范围0---3021个刻度
不知道为什么显示出来是这样 8. x轴子刻度长度
m_Multichannel-xAxis-setSubTickLength(0,0); //子刻度长度 setSubTickLength(int inside, int outside)Sets the length of the subticks in pixels. \a inside is the length the subticks will reach insidethe plot and \a outside is the length they will reach outside the plot. If \a outside is greaterthan zero, the tick labels and axis label will increase their distance to the axis accordingly,so they wont collide with the ticks. 以像素为单位设置子刻度的长度。 inside是子刻度将到达的图表内的长度 outside是它们到达plot外的长度。 如果outside0刻度label和轴label将相应地增加到轴的距离 这样它们就不会和ticks相撞。 plot图表 9. x轴子刻度长度
m_Multichannel-xAxis-setSubTickLength(5,0); //子刻度长度 10. x轴子刻度长度
m_Multichannel-xAxis-setSubTickLength(20,0); //子刻度长度 11. x轴子刻度长度
m_Multichannel-xAxis-setSubTickLength(0,20); //子刻度长度 12. x轴子刻度长度
m_Multichannel-xAxis-setSubTickLength(10,10); //子刻度长度 13. x轴和y轴 m_Multichannelui-widget;QSharedPointerQCPAxisTickerFixed intTicker_M(new QCPAxisTickerFixed);intTicker_M-setTickStep(1);intTicker_M-setScaleStrategy(QCPAxisTickerFixed::ssMultiples);m_Multichannel-xAxis-setTicker(intTicker_M);m_Multichannel-xAxis-setLabel(x轴);m_Multichannel-xAxis-ticker()-setTickCount(11); //刻度数量m_Multichannel-xAxis-setNumberFormat(f); //x轴刻度值格式m_Multichannel-xAxis-setNumberPrecision(0); //刻度值精度m_Multichannel-xAxis-setLabelFont(QFont(font().family(),20)); //设置标签字体大小m_Multichannel-xAxis-setRange(0,10,Qt::AlignLeft); //范围m_Multichannel-xAxis-setSubTickLength(0,0); //子刻度长度m_Multichannel-yAxis-setNumberFormat(f);m_Multichannel-yAxis-setNumberPrecision(2);m_Multichannel-yAxis-setLabel(y轴);m_Multichannel-yAxis-setLabelFont(QFont(font().family(),10));m_Multichannel-yAxis-setRange(0,5);m_Multichannel-yAxis-setTickLength(10,5); 14. 背景
QCustomPlot绘图类详解大白话-CSDN博客
ui-plotWidget-setBackground(QBrush(QColor(#404040))); 15. 坐标轴标签颜色 ui-plotWidget-xAxis-setLabelColor(QColor(Qt::red));ui-plotWidget-yAxis-setLabelColor(QColor(Qt::red)); 16. 坐标轴数字标签颜色 ui-plotWidget-xAxis-setTickLabelColor(QColor(Qt::green));ui-plotWidget-yAxis-setTickLabelColor(QColor(Qt::green)); 17. 坐标轴基线颜色 ui-plotWidget-xAxis-setBasePen(QPen(QColor(Qt::yellow), 2, Qt::SolidLine));ui-plotWidget-yAxis-setBasePen(QPen(QColor(Qt::yellow), 2, Qt::SolidLine)); 18. 坐标轴tick颜色 ui-plotWidget-xAxis-setTickPen(QPen(QColor(#ff00ff)));ui-plotWidget-yAxis-setTickPen(QPen(QColor(#ff00ff))); 19. 坐标轴subtick颜色 ui-plotWidget-xAxis-setSubTickPen(QPen(QColor(#00ffff)));ui-plotWidget-yAxis-setSubTickPen(QPen(QColor(#00ffff))); 20. grid()颜色 ui-plotWidget-xAxis-grid()-setPen(QPen(QColor(Qt::darkRed), 1, Qt::DotLine));ui-plotWidget-yAxis-grid()-setPen(QPen(QColor(Qt::darkGreen), 1, Qt::DotLine)); 21. 示例1 #define PT_CNT 200 // 点数QVectordouble keys, values;for (int i 1; i PT_CNT; i){keys.push_back(i);values.push_back(rand() % 100 - 10);}ui-plotWidget-addGraph();ui-plotWidget-graph(0)-addData(keys, values);ui-plotWidget-graph(0)-setPen(QColor(Qt::blue));ui-plotWidget-graph(0)-setAntialiasedFill(true);ui-plotWidget-replot(); 22. 刷新图层 ui-plotWidget-graph(0)-data()-clear();ui-plotWidget-replot();
重新添加数据 QVectordouble keys, values;for (int i 1; i PT_CNT; i){keys.push_back(i);values.push_back(rand() % 100 - 10);}ui-plotWidget-graph(0)-addData(keys, values);ui-plotWidget-graph(0)-setPen(QColor(Qt::blue));ui-plotWidget-graph(0)-setAntialiasedFill(true);ui-plotWidget-replot(); 23. 拖拽缩放
ui-plotWidget-setInteractions(QCP::iRangeDrag | QCP::iRangeZoom); 24. qcustomplot的帮助文档
我希望在QtCreator中使用qcustomplot的帮助文档可以参考下面的文章。
QCustomPlot使用手册一_qcustom手册-CSDN博客
【QCustomPlot】1.1 - Qt .qch帮助文档导入使用-CSDN博客
25.示例2
参考QCustomPlot使用-CSDN博客 //最开始初始化 for (int i0; i101; i){double m,m1;m i/50.0 - 1;m1 m*m;xm;x1m;ym1;y1-m1;}oneui-plotWidget-addGraph();init_graph(0);twoui-plotWidget-addGraph();ui-plotWidget-graph(1)-addData(x1, y1);ui-plotWidget-graph(1)-setPen(QColor(Qt::red));ui-plotWidget-graph(1)-setAntialiasedFill(true);ui-plotWidget-replot();init_graph(1);
//初始化图层
void MainWindow::init_graph(int current_index)
{if(current_index0){ui-plotWidget-graph(current_index)-addData(x, y);ui-plotWidget-graph(current_index)-setPen(QColor(Qt::blue));}else {ui-plotWidget-graph(current_index)-addData(x1, y1);ui-plotWidget-graph(current_index)-setPen(QColor(Qt::red));}ui-plotWidget-graph(current_index)-setAntialiasedFill(true);ui-plotWidget-replot();
}//清理图层
void MainWindow::on_pushButton_clicked()
{int current_indexui-spinBox-value();ui-plotWidget-graph(current_index)-data()-clear();ui-plotWidget-replot();
}
//添加数据
void MainWindow::on_pushButton_2_clicked()
{int current_indexui-spinBox-value();init_graph(current_index);
}
