我有一个实时图表绘制添加到文件中的值。但是有这样一个时刻：当新数据停止进入文件时，动画就必须停止。FuncAnimation例如，如果字符串的长度没有改变，你怎么能停止提供的工作？像这样尝试：
if len(x)>m:
m = len(x)
else:
#остановить анимацию, но функции для остановки анимации не работают
提前感谢您的任何建议！
import sys
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtWidgets import *
import matplotlib.pyplot as plt
import pandas as pd
from matplotlib.animation import FuncAnimation
import numpy as np
from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg, NavigationToolbar2QT
import mplcursors
plt.style.use('seaborn-whitegrid')
def animation(i, axs):
data = pd.read_csv('FlyData.txt', sep='\s+', encoding='latin-1', header=None)
data = pd.DataFrame(data)
colors = ['#FFD700', 'g', 'b', 'r', 'purple', 'c', 'm', 'y', 'k', 'c', '#FF4500', '#2F4F4F', '#FF69B4', '#556B2F', '#20B2AA', '#BDB76B', '#FFD700', '#DB7093', '#7FFF00', '#4B0082']
labels = ['hr', 'Vпр, м\с', 'c', 'gh', 'h', 'j', 'h']
x = data[0]
m = 0
for i in range(0, 7):
y = data[i+1]
ymax = max(y)
ymin = min(y)
stepx = max(x)/10
axs[i].clear()
axs[i].label_outer()
axs[i].set_ylim([ymin*1.1, ymax*1.1])
axs[i].set_xticks(np.arange(0, max(x)+1, stepx))
axs[i].spines['right'].set_visible(False)
axs[i].spines['top'].set_visible(False)
axs[i].autoscale_view()
axs[i].set_ylabel(labels[i])
axs[i].plot(x, y, colors[i])
if ymax > 1000 and ymax>2000:
axs[i].set_yticks(np.arange(ymin, ymax, 400))
elif ymax < 1000 and ymax>500:
axs[i].set_yticks(np.arange(ymin, ymax, 200))
elif ymax>100 and ymax<500:
axs[i].set_yticks(np.arange(ymin, ymax, 50))
elif ymax<100 and ymax>15:
axs[i].set_yticks(np.arange(ymin, ymax, 20))
elif ymax<15 and ymax>1:
axs[i].set_yticks(np.arange(ymin, ymax, 2))
else:
axs[i].set_yticks(np.arange(ymin, ymax, 0.20))
#DATA_POINTS_TO_DISPLAY = 200
#data1 = deque(maxlen=DATA_POINTS_TO_DISPLAY)
plt.xlabel('Время')
mplcursors.cursor(hover=True)
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(1119, 821)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.gridLayout = QtWidgets.QGridLayout(self.centralwidget)
self.gridLayout.setObjectName("gridLayout")
self.pushButton = QtWidgets.QPushButton(self.centralwidget)
self.pushButton.setObjectName("pushButton")
self.gridLayout.addWidget(self.pushButton, 0, 0, 1, 1)
self.pushButton_2 = QtWidgets.QPushButton(self.centralwidget)
self.pushButton_2.setObjectName("pushButton_2")
self.gridLayout.addWidget(self.pushButton_2, 0, 1, 1, 1)
self.pushButton_3 = QtWidgets.QPushButton(self.centralwidget)
self.pushButton_3.setObjectName("pushButton_3")
self.gridLayout.addWidget(self.pushButton_3, 0, 2, 1, 1)
self.pushButton_4 = QtWidgets.QPushButton(self.centralwidget)
self.pushButton_4.setObjectName("pushButton_4")
self.gridLayout.addWidget(self.pushButton_4, 0, 3, 1, 1)
self.pushButton_5 = QtWidgets.QPushButton(self.centralwidget)
self.pushButton_5.setObjectName("pushButton_5")
self.gridLayout.addWidget(self.pushButton_5, 0, 4, 1, 1)
self.pushButton_6 = QtWidgets.QPushButton(self.centralwidget)
self.pushButton_6.setObjectName("pushButton_6")
self.gridLayout.addWidget(self.pushButton_6, 0, 5, 1, 1)
self.figure = plt.figure(dpi=100)
self.gs = self.figure.add_gridspec(7, hspace=0)
self.axs = self.gs.subplots(sharex=True, sharey=False)
self.figure.tight_layout()
#self.figure.canvas.mpl_connect('button_press_event', onClick)
#anim_running = True
self.ani = FuncAnimation(self.figure, animation, fargs = (self.axs,), interval = 1000, blit = False)
self.canvas = FigureCanvasQTAgg(self.figure)
self.toolbar = NavigationToolbar2QT(self.canvas, self.canvas)
self.gridLayout.addWidget(self.canvas, 1, 0, 1, 18)
self.canvas.draw()
#self.widget = QtWidgets.QWidget(self.centralwidget)
#self.widget.setObjectName("widget")
#self.gridLayout.addWidget(self.widget, 1, 0, 1, 6)
self.step = 1
#self.scroll = QtWidgets.QScrollArea(self.centralwidget)
#self.scroll.setWidget(self.canvas)
#self.scroll.setWidgetResizable(True)
#self.gridLayout.addWidget(self.scroll, 2, 0, 1, 18)
self.scroll = QtWidgets.QScrollBar(self.centralwidget)
self.scroll.setOrientation(QtCore.Qt.Horizontal)
self.scroll.setPageStep(self.step * 100)
self.scroll.setObjectName("scroll")
self.gridLayout.addWidget(self.scroll, 2, 0, 1, 18)
self.setupSlider()
#self.scroll.sliderMoved.connect(self.canvas)
MainWindow.setCentralWidget(self.centralwidget)
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
self.pushButton.setText(_translate("MainWindow", "PushButton"))
self.pushButton_2.setText(_translate("MainWindow", "PushButton"))
self.pushButton_3.setText(_translate("MainWindow", "PushButton"))
self.pushButton_4.setText(_translate("MainWindow", "PushButton"))
self.pushButton_5.setText(_translate("MainWindow", "PushButton"))
self.pushButton_6.setText(_translate("MainWindow", "PushButton"))
def setupSlider(self):
self.lims = np.array(self.axs[0].set_xlim())
self.scroll.setPageStep(self.step * 100)
self.scroll.actionTriggered.connect(self.updatePage)
self.updatePage()
def updatePage(self, evt = None):
r = self.scroll.value() / ((1 + self.step) * 100)
l1 = self.lims[0] + r * np.diff(self.lims)
l2 = l1 + np.diff(self.lims) * self.step
self.axs[0].set_xlim(l1, l2)
print(self.scroll.value(), l1, l2)
self.figure.canvas.draw_idle()
#def stop_anim(self):
#self.ani.event_source.stop()
#self.ani.run ^= False
#def onClick(event):
#nonlocal anim_running
#if anim_running:
#ani.event_source.stop()
#anim_running = False
#else:
# ani.event_source.start()
#anim_running = True
if __name__ == '__main__':
app = QtWidgets.QApplication.instance()
if app is None:
app = QtWidgets.QApplication(sys.argv)
w1 = Ui_MainWindow()
Form = QtWidgets.QMainWindow()
w1.setupUi(Form)
Form.show()
app.exec_()
添加此代码并能够在 data = pd.DataFrame(data) <-- 这一行之后停止动画