小组网站建设方案书,wordpress 批量发布文章,网站怎么添加音乐,wordpress可视化建站前言#xff1a; 封装的一个实时波形图的类#xff0c;可以直接提升使用。 提供了接口#xff0c;可以更改颜色#xff0c;样式#xff0c;等等 参考#xff1a;
Qt Plotting Widget QCustomPlot - Introduction
另外参考了一个大神的作品#xff0c;链接没找到。 项目…前言 封装的一个实时波形图的类可以直接提升使用。 提供了接口可以更改颜色样式等等 参考
Qt Plotting Widget QCustomPlot - Introduction
另外参考了一个大神的作品链接没找到。 项目文件
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CSDN
【免费】一个实时波形图的封装demoQTqcustomplot资源-CSDN文库 源码
WaveChart文件夹
1.加入文件qcustomplot.h 和 qcustomplot.cpp
2.WaveChart.pri文件
QT core gui
greaterThan(QT_MAJOR_VERSION, 4): QT widgets printsupportFORMS \$$PWD/waveWidget.uiHEADERS \$$PWD/qcustomplot.h \$$PWD/waveWidget.hSOURCES \$$PWD/qcustomplot.cpp \$$PWD/waveWidget.cpp3.waveWidget.h文件
#ifndef WAVEWIDGET_H
#define WAVEWIDGET_H#include QWidget
#include QVBoxLayout
#include vector
#include cstring
#include numeric
//#include QScrollBar
#include qcustomplot.h
using std::vector;
namespace Ui {
class WaveWidget;
}class WaveWidget : public QWidget
{Q_OBJECTpublic:explicit WaveWidget(QWidget *parent nullptr);~WaveWidget();void init(bool isShowTickstrue, bool isShowTickLablestrue, bool isShowGridtrue, bool isShowSubGridtrue, bool isShowAxis2true, bool isGraphBigAndSmalltrue);void setTheme(QColor axis, QColor background);void setXAxisLable(const char* name, const char* name2 );void setYAxisLable(const char* name, const char* name2 );void setPen(Qt::GlobalColor penColor, QCPGraph::LineStyle lineStyle QCPGraph::lsLine, QColor brushColor QColor(255,255, 255, 100), bool isShow true);void addNewData(double data);void setTitle(const char* name);double getMax();double getMin();double getAverage();QCustomPlot* getTheChartPlot();QCPGraph* getTheGraph();vectordouble getTheVector();private:Ui::WaveWidget *ui;QCustomPlot* chartPlot new QCustomPlot(this); // 图表QCPGraph* graph; // 曲线//QScrollBar horizontalScrollBar;vectordouble graphData; // 图表数据,只作记录使用int timeRange 10; // 时间轴范围QTime time;double sum 0.0;};#endif // WAVEWIDGET_H4.waveWidget.cpp文件
#include waveWidget.h
#include ui_waveWidget.hWaveWidget::WaveWidget(QWidget *parent) :QWidget(parent),ui(new Ui::WaveWidget)
{ui-setupUi(this);// 初始化图表graph chartPlot-addGraph();// graph-addData(1,1);// graph-addData(2,3);// 初始化设置// chartPlot-xAxis-setRange(1, 4096);// chartPlot-yAxis-setRange(-1, 350); // 假设灰度值的范围为0-255// chartPlot-xAxis-setLabel(Pixel);// chartPlot-yAxis-setLabel(Gray Value);QVBoxLayout* layout new QVBoxLayout;layout-addWidget(ui-title);layout-addWidget(chartPlot);chartPlot-setSizePolicy(QSizePolicy::Policy(QSizePolicy::Preferred), QSizePolicy::Policy(QSizePolicy::Expanding));//layout-addWidget((QWidget)horizontalScrollBar);setLayout(layout);// init();}WaveWidget::~WaveWidget()
{delete ui;
}void WaveWidget::init(bool isShowTicks, bool isShowTickLables, bool isShowGrid, bool isShowSubGrid, bool isShowAxis2, bool isGraphBigAndSmall)
{time QTime::currentTime();// 刻度显示chartPlot-xAxis-setTicks(isShowTicks);chartPlot-yAxis-setTicks(isShowTicks);// 刻度值显示chartPlot-xAxis-setTickLabels(isShowTickLables);chartPlot-yAxis-setTickLabels(isShowTickLables);// 网格显示chartPlot-xAxis-grid()-setVisible(isShowGrid);chartPlot-yAxis-grid()-setVisible(isShowGrid);// 子网格显示chartPlot-xAxis-grid()-setSubGridVisible(isShowSubGrid);chartPlot-yAxis-grid()-setSubGridVisible(isShowSubGrid);// 右和上坐标轴、刻度值显示chartPlot-xAxis2-setVisible(isShowAxis2);chartPlot-yAxis2-setVisible(isShowAxis2);chartPlot-yAxis2-setTicks(isShowAxis2);chartPlot-yAxis2-setTickLabels(isShowAxis2);// make top right axes clones of bottom left axes. Looks prettier:
// chartPlot-axisRect()-setupFullAxesBox();// make left and bottom axes always transfer their ranges to right and top axes:if(isShowAxis2){connect(chartPlot-xAxis, SIGNAL(rangeChanged(QCPRange)), chartPlot-xAxis2, SLOT(setRange(QCPRange)));connect(chartPlot-yAxis, SIGNAL(rangeChanged(QCPRange)), chartPlot-yAxis2, SLOT(setRange(QCPRange)));}// 暗色主题//setPlotTheme(Qt::white, Qt::black);// 亮色主题setTheme(Qt::black, Qt::white);if(isGraphBigAndSmall){// 可放大缩小和移动chartPlot-setInteractions(QCP::iRangeDrag | QCP::iRangeZoom);}// x轴以时间形式显示QSharedPointerQCPAxisTickerTime timeTicker(new QCPAxisTickerTime);timeTicker-setTimeFormat(%h:%m:%s);chartPlot-xAxis-setTicker(timeTicker);chartPlot-axisRect()-setupFullAxesBox();chartPlot-replot();
}void WaveWidget::setTheme(QColor axis, QColor background)
{
//----------------------------------------------------------------------------------------//// 坐标标注颜色chartPlot-xAxis-setLabelColor(axis);chartPlot-yAxis-setLabelColor(axis);// 坐标刻度值颜色chartPlot-xAxis-setTickLabelColor(axis);chartPlot-yAxis-setTickLabelColor(axis);// 坐标基线颜色和宽度chartPlot-xAxis-setBasePen(QPen(axis, 1));chartPlot-yAxis-setBasePen(QPen(axis, 1));// 坐标主刻度颜色和宽度chartPlot-xAxis-setTickPen(QPen(axis, 1));chartPlot-yAxis-setTickPen(QPen(axis, 1));// 坐标子刻度颜色和宽度chartPlot-xAxis-setSubTickPen(QPen(axis, 1));chartPlot-yAxis-setSubTickPen(QPen(axis, 1));// 坐标标注颜色chartPlot-xAxis2-setLabelColor(axis);chartPlot-yAxis2-setLabelColor(axis);// 坐标刻度值颜色chartPlot-xAxis2-setTickLabelColor(axis);chartPlot-yAxis2-setTickLabelColor(axis);// 坐标基线颜色和宽度chartPlot-xAxis2-setBasePen(QPen(axis, 1));chartPlot-yAxis2-setBasePen(QPen(axis, 1));// 坐标主刻度颜色和宽度chartPlot-xAxis2-setTickPen(QPen(axis, 1));chartPlot-yAxis2-setTickPen(QPen(axis, 1));// 坐标子刻度颜色和宽度chartPlot-xAxis2-setSubTickPen(QPen(axis, 1));chartPlot-yAxis2-setSubTickPen(QPen(axis, 1));// 整个画布背景色chartPlot-setBackground(background);// 绘图区域背景色chartPlot-axisRect()-setBackground(background);// 刷新绘图chartPlot-replot();
}void WaveWidget::setXAxisLable(const char *name, const char* name2)
{chartPlot-xAxis-setLabel(name);if(strlen(name2)!0)chartPlot-xAxis2-setLabel(name2);chartPlot-replot();
}void WaveWidget::setYAxisLable(const char *name, const char* name2)
{chartPlot-yAxis-setLabel(name);if(strlen(name2)!0)chartPlot-yAxis2-setLabel(name2);chartPlot-replot();
}void WaveWidget::setPen(Qt::GlobalColor penColor, QCPGraph::LineStyle lineStyle, QColor brushColor, bool isShow)
{graph-setPen(QPen(penColor)); // 设置线条颜色为蓝色graph-setLineStyle(lineStyle); // 设置线型为直线graph-setVisible(isShow);chartPlot-graph()-setBrush(QBrush(brushColor));chartPlot-replot();
}void WaveWidget::addNewData(double data)
{// 系统当前时间 系统运行初始时间 系统运行时间static double start time.hour()*60*60 time.minute()*60 time.second() time.msec()/1000.0;double key start time.elapsed()/1000.0;// 设置时间轴chartPlot-xAxis-setRange(key, timeRange, Qt::AlignRight);//chartPlot-rescaleAxes();// 刷新绘图水平滚动条//horizontalScrollBar.setRange(int(start), int(key)); // 刷新滚动条的范围//horizontalScrollBar.setPageStep(1); // 设置翻页步长为 1s 的宽度//horizontalScrollBar.setValue(int(key)); // 调整滑块位置到最右边// 更新曲线绘图chartPlot-graph()-addData(key, data);chartPlot-replot(QCustomPlot::rpQueuedReplot);// 存储曲线的当前值graphData.push_back(data);sum data;
}void WaveWidget::setTitle(const char *name)
{ui-title-setText(name);
}double WaveWidget::getMax()
{return *std::max_element(graphData.begin(),graphData.end());
}double WaveWidget::getMin()
{return *std::min_element(graphData.begin(),graphData.end());
}double WaveWidget::getAverage()
{return 1.0*sum/(graphData.size());
}QCustomPlot *WaveWidget::getTheChartPlot()
{return chartPlot;
}QCPGraph *WaveWidget::getTheGraph()
{return graph;
}vectordouble WaveWidget::getTheVector()
{return graphData;
}5.测试demo
新建测试界面 提升为刚刚的类 效果 测试 ui-setupUi(this);// 初始化可以设置参数ui-waveWidget-init();// 可选设置ui-waveWidget-setXAxisLable(Time);ui-waveWidget-setYAxisLable(Value);ui-waveWidget-setPen(Qt::blue, QCPGraph::lsLine, QColor( 36,141,218,255));ui-waveWidget-setTheme(Qt::red, Qt::white);ui-waveWidget-setTitle(Wave Chart Test);// 测试加入数据QTimer *timer new QTimer(this);connect(timer,QTimer::timeout,[](){ui-waveWidget-addNewData((qrand()%1000)/1000.0);qDebug()max:ui-waveWidget-getMax() min:ui-waveWidget-getMin() average:ui-waveWidget-getAverage();if(num%100){qDebug()size: ui-waveWidget-getTheVector().size();ui-waveWidget-getTheVector().clear();qDebug()size: ui-waveWidget-getTheVector().size()********;}if(num50){timer-stop();}num;});timer-start(100);
