QT-数据可视化大屏1

//创建饼状图 void MainWindow::createpieSewies() { //饼状图 QPieSeries * my_pieSeries = new QPieSeries(); //中间圆与大圆的比例 my_pieSeries->setHoleSize(0.35); //扇形及数据 QPieSlice *pieSlice_running = new QPieSlice(); pieSlice_running->setValue(20);//扇形占整个圆的百分比 pieSlice_running->setLabel("教育"); pieSlice_running->setLabelVisible(); pieSlice_running->setColor(QColor("#4cb9cf")); pieSlice_running->setLabelColor(QColor("#4cb9cf")); pieSlice_running->setBorderColor(QColor("#4cb9cf")); pieSlice_running->setBorderColor(QColor()); my_pieSeries->append(pieSlice_running); QPieSlice *pieSlice_noconnect = new QPieSlice(); pieSlice_noconnect->setValue(70); pieSlice_noconnect->setLabel("贷款"); pieSlice_noconnect->setColor(QColor("#53b666")); pieSlice_noconnect->setLabelColor(QColor("#53b666")); pieSlice_noconnect->setBorderColor(QColor("#53b666")); pieSlice_noconnect->setLabelVisible();//设置标签可见,缺省不可见 my_pieSeries->append(pieSlice_noconnect); QPieSlice *pieSlice_idle = new QPieSlice(); pieSlice_idle->setValue(10); pieSlice_idle->setLabel("生活"); pieSlice_idle->setLabelVisible(); pieSlice_idle->setColor(QColor("#2f89cf")); pieSlice_idle->setLabelColor(QColor("#2f89cf")); pieSlice_idle->setBorderColor(QColor("#2f89cf")); my_pieSeries->append(pieSlice_idle); // 图表视图 QChart *chart = new QChart(); chart->setTitle("猫猫1全年开支"); chart->addSeries(my_pieSeries); chart->setBackgroundBrush(QColor(0, 0, 0, 0)); chart->legend()->setAlignment(Qt::AlignBottom); chart->legend()->setBackgroundVisible(false); chart->legend()->setFont(QFont("黑体", 8)) ; // 图例字体 chart->setTitleBrush(QColor("#808396")); chart->legend()->setLabelColor(QColor("#808396")); QChartView *chartView = new QChartView(); chartView = new QChartView(ui->widget); chartView->setRenderHint(QPainter::Antialiasing); chartView->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred); chartView->setStyleSheet("background-color:rgba(0,0,0,0);"); chartView->setChart(chart); ui->gridLayout_4->addWidget(chartView); }