将进度条或仪表小部件添加到 PyQtGraph

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如何解决将进度条或仪表小部件添加到 PyQtGraph？

开发过程中遇到将进度条或仪表小部件添加到 PyQtGraph的问题如何解决？下面主要结合日常开发的经验，给出你关于将进度条或仪表小部件添加到 PyQtGraph的解决方法建议，希望对你解决将进度条或仪表小部件添加到 PyQtGraph有所启发或帮助；

目前，我有一个 PyQtGraph 脚本，我想向 GUI 添加一个仪表/进度条，

实现这一目标的最简单方法是什么？

pyqtgraph 似乎不直接支持进度条，但可以使用小部件导入？

我的目标是在 update() 调用中刷新仪表/进度条。

from pyqtgraph.Qt import QtGui,QtCore
import numpy as np
import pyqtgraph as pg
from pyqtgraph.ptime import time
import struct
from struct import pack,unpack
import socket 

app = QtGui.QApplication([])

data = []
data_throttle = []
data_brake = []
data_steering = []
data_state = []
data_error = []


pg.setConfigOption('BACkground',(0,0))
#pg.setConfigOption(antialias=TruE)
win = pg.GraphicsWindow()
win.resize(1600,1000)
p1 = win.addplot(title="Sequence",row=0,col=1)
p1.setwindowtitle('Sequence')
p1.setRange(QtCore.QRectF(0,100,150)) 
p1.showGrID(True,TruE)

p2 = win.addplot(title="Throttle",col=2)
p2.setwindowtitle('Throttle')
p2.setRange(QtCore.QRectF(0,255)) 
p2.showGrID(True,TruE)

p3 = win.addplot(title="Brake",col=3)
p3.setwindowtitle('Brake')
p3.setRange(QtCore.QRectF(0,255)) 
p3.showGrID(True,TruE)


p4 = win.addplot(title="Steering",row=1,col=1)
p4.setwindowtitle('Steering')
p4.setRange(QtCore.QRectF(0,-1,2)) 
p4.showGrID(True,TruE)

p5 = win.addplot(title="Vehicle State",col=2)
p5.setwindowtitle('Vehicle State')
p5.setRange(QtCore.QRectF(0,10)) 
p5.showGrID(True,TruE)

P6 = win.addplot(title="Errors",col=3)
P6.setwindowtitle('Errors')
P6.setRange(QtCore.QRectF(0,10)) 
P6.showGrID(True,TruE)

P7 = win.addplot(title="Counter",col=4)
p8 = win.addplot(title="Counter",col=4)

Font=QtGui.QFont()
Font.setPixelSize(300)

anchor = pg.TextItem()
anchor.setText("0")
anchor.setcolor(QtGui.Qcolor(255,255,255))
anchor.setFont(Font)

anchor1 = pg.TextItem()
anchor1.setText("0")
anchor1.setcolor(QtGui.Qcolor(255,255))
anchor1.setFont(Font)


P7.addItem(anchor)
P7.showGrID(false,falsE)
P7.hIDeAxis('bottom')
P7.hIDeAxis('left')

p8.addItem(anchor1)
p8.showGrID(false,falsE)
p8.hIDeAxis('bottom')
p8.hIDeAxis('left')




curve = p1.plot(pen='r')
curve2 = p2.plot(pen='b')
curve3 = p3.plot(pen='g')
curve4 = p4.plot(pen='y')
curve5 = p5.plot(pen='r')
curve6 = P6.plot(pen='b')


# Receive UDP packets transmitted by a broadcasTing service

RECEIVE_IP = ''
RECEIVE_PORT = 2337
RECEIVE_ADDRESS = (RECEIVE_IP,RECEIVE_PORT)


recv_socket = socket.socket(socket.AF_INET,socket.soCK_DGRAM)
recv_socket.bind(RECEIVE_ADDRESS)

JOY_CODE = '=HBBBhHQQB'


ACK_CODE = '=HHBBHBBhBqB'

ptr = 0
lastTime = time()
fps = None
def update():
    global recv_socket,fScale
    global curve,data,data_throttle,data_brake,data_steering,ptr,p,lastTime,fps,data_state,data_error
    recv_message,address = recv_socket.recvfrom(22)
    message_ID,ack_payload,ack_seq,vehicle_state,vehicle_speed,throttle,brake,steering,error,@R_489_6561@amp,checksum =  struct.unpack(ACK_CODE,recv_messagE) 
    #data = throttle
    data.append(ack_seq)
    data =  data[-100:]
   
    data_throttle.append(throttlE)
    data_throttle =  data_throttle[-100:]
   
    data_brake.append(brakE)
    data_brake =  data_brake[-100:]
   
    data_steering.append(steering / 32768)
    data_steering =  data_steering[-100:]

    vehicle_state = vehicle_state & 0x07
    data_state.append(vehicle_statE)
    data_state = data_state[-100:]

    data_error.append(error)
    data_error = data_error[-100:]
   

    curve.setData(data,_callSync='off')
    curve2.setData(data_throttle,_callSync='off')
    curve3.setData(data_brake,_callSync='off')
    curve4.setData(data_steering,_callSync='off')
    curve5.setData(data_state,_callSync='off')
    curve6.setData(data_error,_callSync='off')

    #updating Text Value 
    anchor.setText(str(vehicle_statE))
    anchor1.setText(str(vehicle_statE))

    Now = time()
    dt = Now - lastTime
    lastTime = Now
    app.processEvents()  ## force complete redraw for every plot

timer = QtCore.QTimer()
timer.timeout.connect(updatE)
timer.start(0)


## Start Qt event loop unless running in interactive mode.
if __name__ == '__main__':
    import sys
    if (sys.flags.interactive != 1) or not hasattr(QtCore,'PYQT_VERSION'):
        QtGui.QApplication.instance().exec_()

解决方法

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