我正在使用PyQt
设计一个图形用户界面,在点击一个按钮时需要显示一个matplotlib/pylab窗口,用来绘制我已创建的函数数据的图形,类似于Matlab中的运行时。我希望每次按下该按钮时,matplotlib/pylab窗口都能成为我的窗口。
我正在使用PyQt
设计一个图形用户界面,在点击一个按钮时需要显示一个matplotlib/pylab窗口,用来绘制我已创建的函数数据的图形,类似于Matlab中的运行时。我希望每次按下该按钮时,matplotlib/pylab窗口都能成为我的窗口。
QThread
绘制三个不同的样本:#!/usr/bin/env python
#-*- coding:utf-8 -*-
import random
from matplotlib.backends.backend_qt4agg import FigureCanvasQTAgg
from matplotlib.figure import Figure
from PyQt4 import QtGui, QtCore
class MatplotlibWidget(QtGui.QWidget):
def __init__(self, parent=None):
super(MatplotlibWidget, self).__init__(parent)
self.figure = Figure()
self.canvas = FigureCanvasQTAgg(self.figure)
self.axis = self.figure.add_subplot(111)
self.layoutVertical = QtGui.QVBoxLayout(self)
self.layoutVertical.addWidget(self.canvas)
class ThreadSample(QtCore.QThread):
newSample = QtCore.pyqtSignal(list)
def __init__(self, parent=None):
super(ThreadSample, self).__init__(parent)
def run(self):
randomSample = random.sample(range(0, 10), 10)
self.newSample.emit(randomSample)
class MyWindow(QtGui.QWidget):
def __init__(self, parent=None):
super(MyWindow, self).__init__(parent)
self.pushButtonPlot = QtGui.QPushButton(self)
self.pushButtonPlot.setText("Plot")
self.pushButtonPlot.clicked.connect(self.on_pushButtonPlot_clicked)
self.matplotlibWidget = MatplotlibWidget(self)
self.layoutVertical = QtGui.QVBoxLayout(self)
self.layoutVertical.addWidget(self.pushButtonPlot)
self.layoutVertical.addWidget(self.matplotlibWidget)
self.threadSample = ThreadSample(self)
self.threadSample.newSample.connect(self.on_threadSample_newSample)
self.threadSample.finished.connect(self.on_threadSample_finished)
@QtCore.pyqtSlot()
def on_pushButtonPlot_clicked(self):
self.samples = 0
self.matplotlibWidget.axis.clear()
self.threadSample.start()
@QtCore.pyqtSlot(list)
def on_threadSample_newSample(self, sample):
self.matplotlibWidget.axis.plot(sample)
self.matplotlibWidget.canvas.draw()
@QtCore.pyqtSlot()
def on_threadSample_finished(self):
self.samples += 1
if self.samples <= 2:
self.threadSample.start()
if __name__ == "__main__":
import sys
app = QtGui.QApplication(sys.argv)
app.setApplicationName('MyWindow')
main = MyWindow()
main.resize(666, 333)
main.show()
sys.exit(app.exec_())
#!/usr/bin/env python
#-*- coding:utf-8 -*-
import random
from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg
from matplotlib.figure import Figure
from PyQt5 import QtCore #conda install pyqt
from PyQt5 import QtWidgets
class MatplotlibWidget(QtWidgets.QWidget):
def __init__(self, parent=None):
super(MatplotlibWidget, self).__init__(parent)
self.figure = Figure()
self.canvas = FigureCanvasQTAgg(self.figure)
self.axis = self.figure.add_subplot(111)
self.layoutVertical = QtWidgets.QVBoxLayout(self)#QVBoxLayout
self.layoutVertical.addWidget(self.canvas)
class ThreadSample(QtCore.QThread):
newSample = QtCore.pyqtSignal(list)
def __init__(self, parent=None):
super(ThreadSample, self).__init__(parent)
def run(self):
randomSample = random.sample(range(0, 10), 10)
self.newSample.emit(randomSample)
class MyWindow(QtWidgets.QWidget):
def __init__(self, parent=None):
super(MyWindow, self).__init__(parent)
self.pushButtonPlot = QtWidgets.QPushButton(self)
self.pushButtonPlot.setText("Plot")
self.pushButtonPlot.clicked.connect(self.on_pushButtonPlot_clicked)
self.matplotlibWidget = MatplotlibWidget(self)
self.layoutVertical = QtWidgets.QVBoxLayout(self)
self.layoutVertical.addWidget(self.pushButtonPlot)
self.layoutVertical.addWidget(self.matplotlibWidget)
self.threadSample = ThreadSample(self)
self.threadSample.newSample.connect(self.on_threadSample_newSample)
self.threadSample.finished.connect(self.on_threadSample_finished)
@QtCore.pyqtSlot()
def on_pushButtonPlot_clicked(self):
self.samples = 0
self.matplotlibWidget.axis.clear()
self.threadSample.start()
@QtCore.pyqtSlot(list)
def on_threadSample_newSample(self, sample):
self.matplotlibWidget.axis.plot(sample)
self.matplotlibWidget.canvas.draw()
@QtCore.pyqtSlot()
def on_threadSample_finished(self):
self.samples += 1
if self.samples <= 2:
self.threadSample.start()
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
app.setApplicationName('MyWindow')
main = MyWindow()
main.resize(666, 333)
main.show()
sys.exit(app.exec_())
Eli Bendersky写了一个使用PyQt和Matplotlib的代码示例:http://eli.thegreenplace.net/2009/01/20/matplotlib-with-pyqt-guis/
如果我理解正确,您有一个带有GUI的应用程序,并且想在GUI不使用的单独窗口中绘制图形。 pyqtgraph
可以很好地完成这个任务。
首先在命令提示符中输入pip install pyqtgraph
来安装pyqtgraph。
然后:
import pyqtgraph as pg
pg.setConfigOption('background', 'w') # sets background to white
pg.setConfigOption('foreground', 'k') # sets axis color to black
pw = pg.plot(x, y, pen='g') # 1st plot (green)
pw.plot(x2, y2, pen='b') # 2nd plot in same figure (blue)
pw.setLabel('bottom', 'x-label') # x-label
pw.setLabel('left', 'y-label') # y-label
main = MyWindow(data)
- jonie83