我嘗試在程序中啓動Qthread和另一個線程。代碼如下所示。 Qthread必須顯示圖形。 Qthread單獨工作時很好,但是當我嘗試運行一個線程或多個Qthread時,它不顯示任何內容。使用QThread和線程模塊進行Python多線程處理
我的設置:的Ubuntu 16.04.1 LTS,蟒蛇2.7.12
模塊:pyqtgraph,時間,numpy的,SYS,穿線
的QThread:plotthread.py
from pyqtgraph.Qt import QtGui, QtCore
import pyqtgraph as pg
import numpy as np
import time
import sys
class guiThread(QtCore.QThread):
def __init__(self):
QtCore.QThread.__init__(self)
self.status=True
self.range=100
self.app = QtGui.QApplication(sys.argv)
self.app.aboutToQuit.connect(self.stop)
self.win = pg.GraphicsWindow(title="Example")
self.win.resize(500,400)
pg.setConfigOptions(antialias=True)
self.px = self.win.addPlot(title="X plot")
self.ckx = self.px.plot(pen='y')
self.cdx = self.px.plot(pen='r')
self.px.setXRange(0, self.range)
self.px.setYRange(-180, 180)
self.px.showGrid(x=True, y=True)
self.timer = QtCore.QTimer()
self.timer.timeout.connect(self.updateplot)
self.timer.start(0.001)
self.kx=np.zeros(self.range)
self.dx=np.zeros(self.range)
def updateplot(self):
self.ckx.setData(self.kx)
self.cdx.setData(self.dx)
def append(self,sin):
self.kx=np.roll(self.kx,-1)
self.kx[-1]=sin[0]
self.dx=np.roll(self.dx,-1)
self.dx[-1]=int(sin[1])
def stop(self):
print "Exit" #exit when window closed
self.status=False
sys.exit()
def run(self):
print "run" #Qthread run
while self.status:
sin=np.random.randint(-180,180,2)
self.append(sin) #append random number for plot
time.sleep(0.01)
Python Threading:ptiming.py
import time
import threading
class timeThread (threading.Thread):
def __init__(self,name):
threading.Thread.__init__(self)
self.name=name
self.t=time.time()
self.elapsed=0
def run(self):
print "thread start"
while (1):
self.elapsed=time.time()-self.t
print self.name, self.elapsed
主營:main.py
import ptiming
import plotthread
t1=plotthread.guiThread()
t1.start()
t2=ptiming.timeThread("t1")
t2.start()
您是否嘗試在'guiThread'構造函數中添加'win.show()'? – mguijarr
您不能在單獨的線程中執行任何類型的GUI操作。所有gui操作**必須在主線程中發生。 – ekhumoro
@mguijarr是的,我在初始化和plotthread運行功能 – acs