【PYQT5】pyqtgraph 繪製圖表 樣式

 使用方法，上面輸入框內修改數字後按回車就更新圖表

import sys
from PyQt5.QtWidgets import (QWidget, QLineEdit, QGridLayout,QLabel, QApplication)
from PyQt5.QtGui import QPen,QColor,QBrush,QLinearGradient

import pyqtgraph as pg
# 前景（座標軸，網格）消除鋸齒
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)
        # 創建圖
        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)

        # 初始點
        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})  # 畫筆設置
        self.myplot.plot(self.points[-100:], clear=True, pen=pen,symbol='o',symbolBrush=QColor(113,148,116))  # symbol:折點樣式，symbolBrush：折點顏色





if __name__ == '__main__':
    app = QApplication(sys.argv)
    window = Window()
    window.show()
    sys.exit(app.exec_())

運行結果：

但是呢！比較討厭的就是鼠標事件，很醜還不好改，打算禁用掉，官方文檔並沒有給出禁用的接口

好奇寶寶入口：

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

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

我的解決辦法：寫個子類，重寫鼠標事件方法

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("開心")
    def mousePressEvent(self,ev):
        print("祕密")

        #pg.PlotWidget.mousePressEvent(self,ev)
    def EnableAutoRange(self):
        pg.PlotWidget.mouseEnabled = False

其他功能見：

from pyqtgraph import examples
examples.run()