Я пытаюсь отображать данные в реальном времени, полученные сервером, при этом увеличивается память ОЗУ моего процессора (ОС Windows XP), я взял последние обновления, сделанные Люком-кампаньолой, по ссылке "http://bazaar.launchpad.net/~luke-campagnola/pyqtgraph/inp/files/312/tools/debian/"
любая помощь или предложение приветствуется заранее.
Я прикрепляю весь код здесь...
import sys
from pyqtgraph.Qt import QtGui, QtCore
import pyqtgraph as pg
import collections
import random
import time
import math
import numpy as np
from pyqtgraph.ptime import time
class DynamicPlotter(QtGui.QWidget):
def __init__(self, parent = None):
QtGui.QWidget.__init__(self, parent)
sampleinterval=0.1
self.myvar = 0
self.prevdt=0
self.dt1 = 0
app = QtGui.QApplication([])
self.plot_param1 = []
self.plot_param2 = []
self.plot_param3 = []
self.plot_param4 = []
for g in range(0,100):
self.plot_param1.append(g/100)
self.plot_param2 .append((g+1)/100)
self.plot_param3.append(g/100)
self.plot_param4.append((g+1)/100)
self.samplesize = 100;
self.samples = range(0,self.samplesize)
for i in range(len(self.samples)):
self.samples[i] = self.samples[i]/100.0
self.framecount = 0;
pg.mkQApp()
self.pw = pg.PlotWidget()
self.pw.show()
self.p1 = self.pw.plotItem
self.p2 = pg.ViewBox()
self.p1.showAxis('right')
self.p1.scene().addItem(self.p2)
self.p2.setGeometry(self.p1.vb.sceneBoundingRect())
self.p1.getAxis('right').linkToView(self.p2)
self.p2.setXLink(self.p1)
self.pw.setLabel('bottom', 'Time in Secs')
self.pw.setLabel('left', 'Velocity in rpm')
self.pw.setLabel('right', 'load in Nm')
def update(self):
self.p1.plot(self.samples, self.plot_param3)
self.p2.addItem(self.p1.plot(self.samples, self.plot_param4, pen='b'))
self.dt1 = self.dt1+1
self.p1.setYRange(min(self.plot_param3), max(self.plot_param3))
self.p2.setXRange(self.dt1-1,self.dt1)
self.p2.setYRange(min(self.plot_param4), max(self.plot_param4))
if self.framecount == 0:
flushloop = self.samplesize
else:
flushloop = self.samplesize+1
for flush in range(1,flushloop):
self.samples.pop(0)
# below code is to prepare for next sample
self.framecount = self.framecount + 1
k=0
for update in range(self.framecount*self.samplesize,
self.framecount*self.samplesize+self.samplesize):
if(0):
self.plot_param1.append(self.framecount+(update/2))
self.plot_param2.append(self.framecount+ (update/2))
self.myvar=self.myvar-1
else:
self.myvar=self.myvar+1
#self.plot_param2.append(self.framecount+ (update/2))
#self.plot_param1.append(self.framecount+(update/2))
self.samples.append(update/100.0)
if(self.dt1<100):
self.plot_param1 = np.cos(np.linspace(0, 2*np.pi, 101))
self.plot_param3 = self.plot_param1.tolist()
self.plot_param2 = np.sin(np.linspace(0, 4*np.pi, 101))
self.plot_param4 = self.plot_param2.tolist()
if((self.dt1>=100)and (self.dt1 < 200)):
self.plot_param1 = np.cos(np.linspace(0, 20*np.pi, 101))
self.plot_param3 = self.plot_param1.tolist()
self.plot_param2 = np.sin(np.linspace(0, 40*np.pi, 101))
self.plot_param4 = self.plot_param2.tolist()
if((self.dt1>=200)and (self.dt1 < 300)):
for f in range(0,100):
self.plot_param1 = np.cos(np.linspace(0, 20*np.pi, 101))
self.plot_param3 = self.plot_param1.tolist()
#self.plot_param3.append(1+f)
self.plot_param2 = np.cos(np.linspace(0, 20*np.pi, 101))
#self.plot_param4.append(3+f)
self.plot_param4 = self.plot_param2.tolist()
if(self.dt1 >= 300):
self.plot_param1 = np.cos(np.linspace(0, 10*np.pi, 101))
self.plot_param3 = self.plot_param1.tolist()
self.plot_param2 = np.sin(np.linspace(0, 80*np.pi, 101))
self.plot_param4 = self.plot_param2.tolist()
for i in range (len(self.plot_param3)):
self.plot_param3[i] = 20 * self.plot_param3[i]
if __name__ == "__main__":
app = QtGui.QApplication(sys.argv)
myapp = DynamicPlotter()
for i in range(0,100):
myapp.update()
timer = QtCore.QTimer()
timer.timeout.connect(myapp.update)
timer.start(50)
