【PYQT5】pyqtgraph 绘制图表 样式

 使用方法，上面输入框内修改数字后按回车就更新图表

import sys
from PyQt5.QtWidgets import (QWidget, QLineEdit, QGridLayout,QLabel, QApplication)
from PyQt5.QtGui import QPen,QColor,QBrush,QLinearGradientimport pyqtgraph as pg
# 前景（坐标轴，网格）消除锯齿
pg.setConfigOptions(foreground=QColor(113,148,116), antialias=True)class Window(QWidget):def __init__(self):QWidget.__init__(self)self.edit = QLineEdit('11', self)self.edit.editingFinished.connect(self.Func_1)# 创建图self.myplot = pg.PlotWidget()self.myplot.enableAutoRange()layout = QGridLayout(self)layout.addWidget(self.edit, 0, 0)layout.addWidget(self.myplot, 1, 0, 3, 3)self.myplot.setBackground((210, 240, 240))  # 背景色self.myplot.showGrid(y=True)# 初始点self.points = [1, 2, 3, 4, 5, 6,1, 12, 23, 12, -11]self.update()def Func_1(self):self.points.append(int(self.edit.text()))self.update()def update(self):pen = pg.mkPen({'color': (155,200,160), 'width': 4})  # 画笔设置self.myplot.plot(self.points[-100:], clear=True, pen=pen,symbol='o',symbolBrush=QColor(113,148,116))  # symbol:折点样式，symbolBrush：折点颜色if __name__ == '__main__':app = QApplication(sys.argv)window = Window()window.show()sys.exit(app.exec_())

运行结果：

但是呢！比较讨厌的就是鼠标事件，很丑还不好改，打算禁用掉，官方文档并没有给出禁用的接口

好奇宝宝入口：

http://www.pyqtgraph.org/documentation/mouse_interaction.html

http://www.pyqtgraph.org/documentation/graphicsscene/mouseclickevent.html

我的解决办法：写个子类，重写鼠标事件方法

class pgg(pg.PlotWidget,):def __init__(self):super(pgg,self).__init__()#self.setupUi(self)#super(pg.PlotWidget, self).__init__(self)def mouseMoveEvent(self, ev):print("略略略")def mouseReleaseEvent(self, ev):print("开心")def mousePressEvent(self,ev):print("秘密")#pg.PlotWidget.mousePressEvent(self,ev)def EnableAutoRange(self):pg.PlotWidget.mouseEnabled = False

其他功能见：

from pyqtgraph import examples
examples.run()