PyQtGraph之多图绘制

from PyQt5.QtWidgets import *
import pyqtgraph as pg
import sys


class MainWindow(QWidget):

    def __init__(self):
        super().__init__()

        self.setWindowTitle('pyqtgraph作图示例')

        # 创建 GraphicsLayoutWidget 对象
        self.pw = pg.GraphicsLayoutWidget()
        self.pw.setBackground('w')

        # 绘图对象1
        plot1 = self.pw.addPlot()
        plot1.setTitle("订单数量1", color='#008080', size='12pt')

        x1 = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
        y1 = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
        bg1 = pg.BarGraphItem(x=x1, height=y1, width=0.3, brush='r')
        # 添加到界面上
        plot1.addItem(bg1)

        # 绘图对象2
        plot2 = self.pw.addPlot()
        plot2.setTitle("订单数量2", color='#008080', size='12pt')

        x2 = [0.33, 1.33, 2.33, 3.33, 4.33, 5.33, 6.33, 7.33, 8.33, 9.33]
        y2 = [0.33, 1.33, 2.33, 3.33, 4.33, 5.33, 6.33, 7.33, 8.33, 9.33]
        bg2 = pg.BarGraphItem(x=x2, height=y2, width=0.3, brush='g')
        # 添加到界面上
        plot2.addItem(bg2)

        # 创建其他Qt控件
        okButton = QPushButton("OK")
        lineEdit = QLineEdit('点击信息')
        # 水平layout里面放 edit 和 button
        hbox = QHBoxLayout()
        hbox.addWidget(lineEdit)
        hbox.addWidget(okButton)

        # 垂直layout里面放 pyqtgraph图表控件 和 前面的水平layout
        vbox = QVBoxLayout()
        vbox.addWidget(self.pw)
        vbox.addLayout(hbox)

        # 设置全局layout
        self.setLayout(vbox)


if __name__ == '__main__':
    app = QApplication(sys.argv)
    main = MainWindow()
    main.show()
    app.exec_()