【下载文档:  pyqt5与matplotlib的完美结合实例.txt 】

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pyqt5与matplotlib的完美结合实例
具体用到了matplotlib.backends.backend_qt5agg.FigureCanvasQTAgg
直接上代码(这里给出的只是一个简单的框架，告诉你怎么去写)：
# -*- coding: utf-8 -*-
'''
TODO:LQD
'''
import sys
import numpy as np
import matplotlib.pyplot as plt
from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FC
from PyQt5.QtWidgets import QApplication, QPushButton, QMainWindow, QVBoxLayout, QWidget
class QtDraw(QMainWindow):
flag_btn_start = True
def __init__(self):
super(QtDraw, self).__init__()
self.init_ui()
def init_ui(self):
self.resize(800, 600)
self.setWindowTitle('PyQt5 Draw')
# TODO:这里是结合的关键
self.fig = plt.Figure()
self.canvas = FC(self.fig)
self.btn_start = QPushButton(self)
self.btn_start.setText('draw')
self.btn_start.clicked.connect(self.slot_btn_start)
widget = QWidget()
layout = QVBoxLayout()
layout.addWidget(self.canvas)
layout.addWidget(self.btn_start)
widget.setLayout(layout)
self.setCentralWidget(widget)
def slot_btn_start(self):
try:
ax = self.fig.add_subplot(111)
x = np.linspace(0, 100, 100)
y = np.random.random(100)
ax.cla() # TODO:删除原图，让画布上只有新的一次的图
ax.plot(x, y)
self.canvas.draw() # TODO:这里开始绘制
except Exception as e:
print(e)
def ui_main():
app = QApplication(sys.argv)
w = QtDraw()
w.show()
sys.exit(app.exec_())
if __name__ == '__main__':
ui_main()
以上这篇pyqt5与matplotlib的完美结合实例就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持中文源码网。