我要从串行端口（对于Windows是'COM'）获取数据，并想将其保存到csv文件中并同时绘制许多图形。我认为我应该为此使用数据结构，但不确定哪个结构适合我，如果可能的话，您可以提供一个示例吗？还有 buffer 和 memoryview ，但不知道如何使用它。 我正在开发一个应用程序，这就是为什么我将wxpython与python 3一起使用的原因。为此，我只使用 wx.Timer ，而不是使用线程wxCallAfter或wxCallLater。但是，当我尝试使用列表中的数据结构时，在20-30秒后，应用程序冻结，他们并没有同时完成工作。任何帮助将不胜感激。
import wx
import time
import serial
import matplotlib.pyplot as plt
import matplotlib.pyplot
import numpy as np
import matplotlib.animation as animation
ser = serial.Serial('COM9', 9600)
class MyForm(wx.Frame):
global ser,a,fig,ax,ax1,ax2
ser = serial.Serial('COM9',9600)
fig, ax = plt.subplots()
ax = plt.subplot(221) #sol ust GPS grafigi
ax1 = plt.subplot(212) #alt GPS-GLO grafigi
ax2 = plt.subplot(222) #sag ust GLO grafigi
a=[]
def __init__(self):
wx.Frame.__init__(self, None, wx.ID_ANY, "Timer Tutorial 2")
# Add a panel so it looks the correct on all platforms
panel = wx.Panel(self, wx.ID_ANY)
self.timer = wx.Timer(self, 1)
self.Bind(wx.EVT_TIMER, self.update1, self.timer)
self.timer2 = wx.Timer(self, 2)
self.Bind(wx.EVT_TIMER, self.update2, self.timer2)
self.timer3 = wx.Timer(self, 3)
self.Bind(wx.EVT_TIMER, self.update3, self.timer3)
self.timer4 = wx.Timer(self, 4)
self.Bind(wx.EVT_TIMER, self.update4, self.timer4)
self.toggleBtn = wx.Button(panel, wx.ID_ANY, "Start Timer 1")
self.toggleBtn.Bind(wx.EVT_BUTTON, self.Timer111)
self.toggleBtn2 = wx.Button(panel, wx.ID_ANY, "Start Timer 2")
self.toggleBtn2.Bind(wx.EVT_BUTTON, self.Timer222)
self.toggleBtn3 = wx.Button(panel, wx.ID_ANY, "Start Timer 3")
self.toggleBtn3.Bind(wx.EVT_BUTTON, self.Timer333)
self.toggleBtn4 = wx.Button(panel, wx.ID_ANY, "Start Timer 4")
self.toggleBtn4.Bind(wx.EVT_BUTTON, self.Timer444)
sizer = wx.BoxSizer(wx.VERTICAL)
sizer.Add(self.toggleBtn, 0, wx.ALL|wx.CENTER, 5)
sizer.Add(self.toggleBtn2, 0, wx.ALL|wx.CENTER, 5)
sizer.Add(self.toggleBtn3, 0, wx.ALL|wx.CENTER, 5)
sizer.Add(self.toggleBtn4, 0, wx.ALL|wx.CENTER, 5)
panel.SetSizer(sizer)
def Timer111(self, event):
buttonObj = event.GetEventObject()
btnLabel = buttonObj.GetLabel()
timerNum = int(btnLabel[-1:])
print (timerNum)
if btnLabel == "Start Timer %s" % timerNum:
print ("starting timer 1...")
self.timer.Start(500)
buttonObj.SetLabel("Stop Timer %s" % timerNum)
else:
self.timer.Stop()
print ("timer 1 stopped!")
buttonObj.SetLabel("Start Timer %s" % timerNum)
def Timer222(self, event):
buttonObj = event.GetEventObject()
btnLabel = buttonObj.GetLabel()
timerNum = int(btnLabel[-1:])
print (timerNum)
if btnLabel == "Start Timer %s" % timerNum:
print ("starting timer 2...")
self.timer2.Start(1000)
buttonObj.SetLabel("Stop Timer %s" % timerNum)
else:
self.timer2.Stop()
plt.close()
print ("timer 2 stopped!")
buttonObj.SetLabel("Start Timer %s" % timerNum)
def Timer333(self, event):
buttonObj = event.GetEventObject()
btnLabel = buttonObj.GetLabel()
timerNum = int(btnLabel[-1:])
print (timerNum)
if btnLabel == "Start Timer %s" % timerNum:
print ("starting timer 3...")
self.timer3.Start(2000)
buttonObj.SetLabel("Stop Timer %s" % timerNum)
else:
self.timer3.Stop()
print ("timer 3 stopped!")
buttonObj.SetLabel("Start Timer %s" % timerNum)
def Timer444(self, event):
buttonObj = event.GetEventObject()
btnLabel = buttonObj.GetLabel()
timerNum = int(btnLabel[-1:])
print (timerNum)
if btnLabel == "Start Timer %s" % timerNum:
print ("starting timer 3...")
self.timer4.Start(3000)
buttonObj.SetLabel("Stop Timer %s" % timerNum)
else:
self.timer4.Stop()
print ("timer 4 stopped!")
buttonObj.SetLabel("Start Timer %s" % timerNum)
def update1(self, event):
global a
timerId = event.GetId()
if timerId == self.timer.GetId():
print("timer 1")
x=[]
x1=[]
x2=[]
y=[]
y1=[]
y2=[]
i=0
def altit(event):
for line in ser:
a.append(line)
#for item in a.__len__(): #orj: for line in ser #a.__sizeof__()-1
#for k in range(1000)
#for k in range(len(a)):
#print("item :", item)
#print("line: ",a[k])
data=line.split(b",")
if data[0] == b"$GNGGA":
altitude=data[9]
timm=data[1]
tim=float(timm)
tim=tim+30000
#print(tim)
hour = tim//10000
minute = (tim//100)%100
second = tim%100
zaman = hour*3600 + minute*60 + second
#print(zaman)
altitude=float(altitude)
x.append(zaman)
y.append(altitude)
ax.plot(x,y)
plt.ylabel('meters')
plt.xlabel('counts')
plt.title('ALTITUDE')
ani2 = animation.FuncAnimation(fig,altit)
plt.show()
print("hey")
def update2(self, event):
global ser,a,fig,ax,ax1,ax2
timerId = event.GetId()
if timerId == self.timer2.GetId():
print("timer 2")
print(a)
def update3(self, event):
timerId = event.GetId()
if timerId == self.timer3.GetId():
print("timer 3")
x=[]
x1=[]
x2=[]
y=[]
y1=[]
y2=[]
i=0
#fig = plt.figure()
def sV_sat(i):
for item in a:
data=item.split(b",")
if data[0] == b"$GPGSV":
print("c")
sView_GP = data[3]
sNumber_GP = data[4]
i=i+1
x.append(i)
#x=[i]
y.append(float(sView_GP))
ax.set_title("GPS")
ax1.set_title("GPS-GLO")
ax1.set_ylim(0,20)
ax.bar(i,y,color='green')
ax1.plot(x,y,'g')
ani8 = animation.FuncAnimation(fig,sV_sat)
plt.legend()
#pyplot.show()
plt.show()
def update4(self, event):
timerId = event.GetId()
if timerId == self.timer4.GetId():
print("timer 4")
#print (time.ctime())
# Run the program
if __name__ == "__main__":
app = wx.App()
frame = MyForm().Show()
app.MainLoop()
我从 def update1 读取并绘制数据，并使用 def update3 在屏幕上打印。