109 lines
3.2 KiB
C++
109 lines
3.2 KiB
C++
#include "realwidget.h"
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extern QVector<double> g_real_temper;
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extern QVector<double> g_real_dsc;
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RealWidget::RealWidget(QWidget *parent) : QWidget(parent)
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{
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realPlot = new QCustomPlot(this);
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realPlot->setBackground(QBrush(Qt::black));
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realPlot->xAxis->setLabelColor(QColor(255, 255, 255));
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realPlot->xAxis->setTickLabelColor(QColor(255, 255, 255));
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realPlot->yAxis->setLabelColor(QColor(255, 255, 255));
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realPlot->yAxis->setTickLabelColor(QColor(255, 255, 255));
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realPlot->xAxis->setLabel("Temp");
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realPlot->yAxis->setLabel("DSC");
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QPen pen = realPlot->xAxis->basePen();
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pen.setColor(QColor(255, 255, 255));
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realPlot->xAxis->setTickPen(pen);
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realPlot->xAxis->setBasePen(pen);
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realPlot->xAxis->setSubTickPen(pen);
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pen = realPlot->yAxis->basePen();
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pen.setColor(QColor(255, 255, 255));
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realPlot->yAxis->setTickPen(pen);
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realPlot->yAxis->setBasePen(pen);
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realPlot->yAxis->setSubTickPen(pen);
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QHBoxLayout *layout = new QHBoxLayout(this);
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///layout->addWidget(startButton, 1);
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layout->addWidget(realPlot);
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///this->setWindowFlags(Qt::Window);
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///this->resize(1000,700);
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this->hide();
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QPen graphPen;
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graphPen.setColor(QColor(40, 110, 255));
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graphPen.setWidthF(3.0);
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realPlot->addGraph();
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realPlot->graph(0)->setPen(graphPen);//曲线1蓝色
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realPlot->graph(0)->setBrush(Qt::NoBrush);
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//四边安上坐标轴
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realPlot->axisRect()->setupFullAxesBox();
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realPlot->setInteractions(QCP::iRangeDrag | QCP::iRangeZoom| QCP::iSelectAxes | QCP::iSelectLegend | QCP::iSelectPlottables | QCP::iMultiSelect | QCP::iSelectItems);
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//设置y轴范围
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realPlot->yAxis->setRange(-30, 30);
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// 使上下轴、左右轴范围同步
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connect(realPlot->xAxis, SIGNAL(rangeChanged(QCPRange)), realPlot->xAxis2, SLOT(setRange(QCPRange)));
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connect(realPlot->yAxis, SIGNAL(rangeChanged(QCPRange)), realPlot->yAxis2, SLOT(setRange(QCPRange)));
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//定时器连接槽函数realtimeDataSlot
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connect(&dataTimer, SIGNAL(timeout()), this, SLOT(realtimeDataSlot()));
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dataTimer.start(200);
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}
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RealWidget::~RealWidget()
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{
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}
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void RealWidget::start_plot_real_line()
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{
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mutex.lock();
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g_real_temper.clear();
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g_real_dsc.clear();
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mutex.unlock();
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dataTimer.start(200);
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}
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void RealWidget::stop_plot_real_line()
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{
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dataTimer.stop();
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mutex.lock();
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g_real_temper.clear();
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g_real_dsc.clear();
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mutex.unlock();
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}
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void RealWidget::realtimeDataSlot()
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{
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double key = 0.0;
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mutex.lock();
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if(g_real_temper.size()>0)
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{
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key = g_real_temper.at(0);
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}
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static double lastPointKey = 0;
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if((g_real_dsc.size()>0)&&(g_real_temper.size()>0))
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{
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// 添加数据到graph
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realPlot->graph(0)->addData(g_real_temper.at(0), g_real_dsc.at(0));
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g_real_temper.removeFirst();
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g_real_dsc.removeFirst();
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}
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mutex.unlock();
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//记录当前时刻
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lastPointKey = key;
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realPlot->xAxis->setRange(key, 16, Qt::AlignRight);
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//绘图
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realPlot->replot();
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//计算帧数
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static double lastFpsKey;
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static int frameCount;
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++frameCount;
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if (key-lastFpsKey > 2) // 每2秒求一次平均值
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{
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lastFpsKey = key;
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frameCount = 0;
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}
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}
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