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plot.cpp
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plot.cpp
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#include "dialog.h"
#include "ui_dialog.h"
//添加2条曲线
void Dialog::wigetAddGraph(QCustomPlot *widget)
{
widget->addGraph();
widget->graph(0)->setLineStyle(QCPGraph::lsLine);
widget->graph(0)->setScatterStyle(QCPScatterStyle(QCPScatterStyle::ssDisc, 5));
widget->addGraph();
widget->graph(1)->setLineStyle(QCPGraph::lsLine);
widget->graph(1)->setScatterStyle(QCPScatterStyle(QCPScatterStyle::ssDisc, 5));
widget->xAxis->setSubTicks(false); //小格刻度不显示
widget->xAxis->setTickPen(QPen(Qt::white));
widget->xAxis->setTickLabelFont(QFont(QFont().family(), 8)); //字体和大小
widget->xAxis->setTickLabelRotation(150); //标签旋转角度
// widget->xAxis->rescale(true); //刻度自适应,默认省略
}
//设置曲线颜色
void Dialog::wigetSetColor(QCustomPlot *widget, QColor clr1, QColor clr2)
{
widget->yAxis->setTickPen(QPen(Qt::white));
widget->yAxis->setSubTickPen(QPen(Qt::white));
widget->yAxis->setTickLabelFont(QFont(QFont().family(), 8));
// widget->yAxis->rescale(true); //刻度自适应,默认省略
widget->graph(0)->setPen(QPen(clr1)); //QColor(255, 100, 0)
widget->graph(1)->setPen(QPen(clr2)); //QColor(50, 200, 0)
}
//用于在一个画布上绘制
void Dialog::widgetDrawLine(QCustomPlot *widget, QString chartName, QString name1, QString name2,
QColor clr1, QColor clr2, QVector<QString> date,
QVector<double> data1, QVector<double> data2)
{
ui->lbe_chart_name->setText(chartName);
//图例名字
ui->lbe_chart_line1_name->setText(name1);
ui->lbe_chart_line2_name->setText(name2);
//图例颜色设置
QString style1 = ui->lbe_chart_line1_clr->styleSheet();
QString style2 = ui->lbe_chart_line2_clr->styleSheet();
style1.append(rgbToStyle(clr1));
style2.append(rgbToStyle(clr2));
ui->lbe_chart_line1_clr->setStyleSheet(style1);
ui->lbe_chart_line2_clr->setStyleSheet(style2);
widget->graph(0)->setName(name1); //设置曲线名字
widget->graph(1)->setName(name2); //设置曲线名字
widget->graph(0)->setPen(QPen(clr1)); //QColor(255, 100, 0)
widget->graph(1)->setPen(QPen(clr2)); //QColor(50, 200, 0)
double maxValue = getMaxVaule(data1, data2);
uint16_t dataSize = data1.size();
QVector<double> ticks;
for(int i = 0; i < dataSize; i++)
ticks << i; //tick:0 1 2 3 4 5 6
QSharedPointer<QCPAxisTickerText> textTicker(new QCPAxisTickerText);
for(int i = 0; i < dataSize; i++)
{
if(i % 2 == 0) //偶数
textTicker->addTick(i, date.at(i)); //tick和标签对应
else
textTicker->addTick(i, " ");
}
// textTicker->addTicks(ticks, date); //每一个都显示
widget->xAxis->setTicker(textTicker); //x轴为文本标签
widget->xAxis->setTickLabelRotation(60); //标签旋转角度
widget->xAxis->setRange(0, dataSize);
if(clickId == 3)
{
widget->yAxis->setRange(0, maxValue + 2);
}
else
widget->yAxis->setRange(0, maxValue + maxValue/20);
widget->graph(0)->setData(ticks, data1);//曲线0添加数据新增确诊人数
widget->graph(1)->setData(ticks, data2);//曲线1添加数据新增疑似人数
widget->replot();
}
QString Dialog::rgbToStyle(QColor rbg)
{
QString r_str = QString::number(rbg.red()) + ", ";
QString g_str = QString::number(rbg.green()) + ", ";
QString b_str = QString::number(rbg.blue()) + "); ";
QString style = "background-color: rgb(" + r_str + g_str + b_str;
// qDebug() << style;
return style;
}
//画折线图，数据类型是double
void Dialog::widgetDrawLine(QCustomPlot *widget, QVector<QString> date,
QVector<double> data1Dub, QVector<double> data2Dub)
{
uint16_t dataSize = date.size();
// qDebug() << dataSize;
double maxValue = getMaxVaule(data1Dub, data2Dub);;
QVector<double> ticks;
for(int i = 0; i < dataSize; i++)
ticks << i; //tick:0 1 2 3 4 5 6
QSharedPointer<QCPAxisTickerText> textTicker(new QCPAxisTickerText);
for(int i = 0; i < dataSize; i++)
{
if(i % 2 == 0) //偶数
textTicker->addTick(i, date.at(i)); //tick和标签对应
else
textTicker->addTick(i, " ");
}
// textTicker->addTicks(ticks, date); //每一个都显示
widget->xAxis->setTicker(textTicker); //x轴为文本标签
widget->xAxis->setTickLabelRotation(60); //标签旋转角度
widget->xAxis->setRange(0, dataSize);
widget->yAxis->setRange(0, maxValue + maxValue/20);
widget->graph(0)->setData(ticks, data1Dub);//曲线0添加数据新增确诊人数
widget->graph(1)->setData(ticks, data2Dub);//曲线1添加数据新增疑似人数
widget->replot();
}