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import sys
import numpy as np
from PyQt5.QtGui import *
from PyQt5.QtCore import *
from PyQt5.QtWidgets import *
import pyqtgraph as pg
from ui_demo02 import Ui_MainWindow
class GraphDemowWindow(QMainWindow, Ui_MainWindow):
def __init__(self, parent=None):
super(GraphDemowWindow, self).__init__(parent)
self.setupUi(self)
pg.setConfigOptions(antialias=True) # 设置开启抗锯齿
self.drawGraphicsLayoutWidget()
self.drawPoltWidget()
# 在QWidget控件提升为pyqtgraph.GraphicsLayoutWidget类型的控件上画波形
def drawGraphicsLayoutWidget(self):
# pyqtgraph.GraphicsLayoutWidget 支持的方法有：
# ['nextRow', 'nextCol', 'nextColumn', 'addPlot', 'addViewBox', 'addItem', 'getItem', 'addLayout', 'addLabel', 'removeItem', 'itemIndex', 'clear']
self.graphicsLayout.clear() # 清除
plt1 = self.graphicsLayout.addPlot(y=np.random.normal(size=1000), title="温度")
plt2 = self.graphicsLayout.addPlot(y=np.random.normal(size=500), title="湿度")
self.graphicsLayout.nextRow() # 图像坐标换行
plt3 = self.graphicsLayout.addPlot(y=np.random.normal(size=800), title="光照度")
plt4 = self.graphicsLayout.addPlot(y=np.random.normal(size=800), title="紫外线强度")
# 在QWidget控件提升为pyqtgraph.PlotWidget类型的控件上画波形
def drawPoltWidget(self):
# pyqtgraph.PlotWidget 支持的方法有：
# ['addItem', 'removeItem', 'autoRange', 'clear', 'setAxisItems', 'setXRange',
# 'setYRange', 'setRange', 'setAspectLocked', 'setMouseEnabled',
# 'setXLink', 'setYLink', 'enableAutoRange', 'disableAutoRange',
# 'setLimits', 'register', 'unregister', 'viewRect']
# pen = pg.mkPen(255, 0, 0)
# pen = pg.mkPen("#ff0000")
# pen = pg.mkPen(color='r', width=3)
pen = pg.mkPen({'color':'0F0', 'width':1})
plt1 = self.graphPlot.plot(np.random.normal(size=100), pen=pen, symbolBrush=(255, 0, 0), symbolPen=(0, 255, 0))
pen2 = pg.mkPen(color="F00", width=1)
plt2 = self.graphPlot.plot(np.random.normal(size=50), pen=pen2, symbolBrush=(0, 255, 0), symbolPen=(255, 0, 0))
self.graphPlot.setAntialiasing(True)
self.graphPlot.setBackground("#ffffff")
if __name__ == "__main__":
app = QApplication(sys.argv)
win = GraphDemowWindow()
win.show()
sys.exit(app.exec_())
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