pyqt中matplotlib图形之间的Python更改

Question

有办法更改pyqt应用程序中的matplotlib显示吗？我制作了一个带有2个单选按钮的桌面应用程序，根据按下的按钮，我希望在radioButton_pgraphic1上显示，在radioButon_bgraphic2上显示。我可以将它从按下的第一个按钮更改为第二个按钮，但如果再次按下第一个按钮，它将不会变回第一个按钮的图形。

这是我到目前为止的代码：

from PyQt5 import QtWidgets, QtCore, QtPrintSupport, QtGui
import matplotlib
matplotlib.use("Qt5Agg")
from PyQt5 import QtCore
from PyQt5.QtWidgets import QApplication, QMainWindow, QMenu, QVBoxLayout, QSizePolicy, QMessageBox, QWidget
from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigureCanvas
from matplotlib.figure import Figure
from PyQt5.QtWidgets import *

found_words = ["a", "b", "c", "d", "e", "f", "g", "h"]
cound_words = ['1','2','3','4','5','6','7','8']
found_pos = [ 'aaa','ssss']
count_pos = ['2','3']
class MyMplCanvas_begr(FigureCanvas):
"""Ultimately, this is a QWidget (as well as a FigureCanvasAgg, etc.)."""
def __init__(self, parent=None, width=5, height=4, dpi=100):
fig = Figure(figsize=(width, height), dpi=dpi)
self.axes = fig.add_subplot(111)
# self.compute_initial_figure()
self.axes.bar(found_words, cound_words, color=['r', 'b', 'k', 'y', 'g'])
self.axes.set_ylabel('Anzahl')
self.axes.set_xlabel('Begriffe')
self.axes.set_title('hi')
FigureCanvas.__init__(self, fig)
self.setParent(parent)
FigureCanvas.setSizePolicy(self,
QSizePolicy.Expanding,
QSizePolicy.Expanding)
FigureCanvas.updateGeometry(self)
class MyMplCanvas_pos(FigureCanvas):
"""Ultimately, this is a QWidget (as well as a FigureCanvasAgg, etc.)."""
def __init__(self, parent=None, width=5, height=4, dpi=100):
fig = Figure(figsize=(width, height), dpi=dpi)
self.axes = fig.add_subplot(111)
FigureCanvas.__init__(self, fig)
self.setParent(parent)
self.plot()
def plot(self):
colors = ['yellowgreen', 'lightcoral']
explode = (0.1, 0)  # explode 1st slice
ax = self.figure.add_subplot(111)
ax.pie(count_pos, explode=explode, labels=found_pos, colors=colors,
autopct='%1.1f%%', shadow=True, startangle=140)

class main_statistic(QtWidgets.QWidget):
def __init__(self, parent=None):
super(main_statistic, self).__init__(parent)

self.radioButton_p = QRadioButton('Pos', self)
self.radioButton_p.setGeometry(QtCore.QRect(100, 10, 95, 20))
self.radioButton_p.setCheckable(True)
self.radioButton_p.toggled.connect(self.clicked_pos)
self.radioButton_b = QRadioButton('Word', self)
self.radioButton_b.setGeometry(QtCore.QRect(200, 10, 95, 20))
self.radioButton_b.setCheckable(True)
self.radioButton_b.toggled.connect(self.clicked_begr)
self.setAttribute(QtCore.Qt.WA_DeleteOnClose)
self.main_widget = QWidget(self)
self.main_widget.setGeometry(QtCore.QRect(100, 100, 700, 500))
self.main_widget1 = QWidget(self)
self.main_widget1.setGeometry(QtCore.QRect(100, 100, 700, 500))

def clicked_pos(self, down):
if down:
l = QVBoxLayout(self.main_widget)
dc = MyMplCanvas_pos(self.main_widget, width=5, height=4, dpi=100)
l.addWidget(dc)
else:
print('not prssed')

def clicked_begr(self, down):
if down:
l1 = QVBoxLayout(self.main_widget1)
dc1 = MyMplCanvas_begr(self.main_widget1, width=5, height=4, dpi=100)
l1.addWidget(dc1)
else:
print('not prssed2')

Answer 1

不用制作两个单独的小部件，而是可以将两个图形小部件添加到同一布局中，并隐藏不想显示的小部件(这就是我在下面所做的(。或者，您可以进行布局并添加或删除想要显示的小部件。

工作代码

from PyQt5 import QtWidgets, QtCore, QtPrintSupport, QtGui
import matplotlib
matplotlib.use("Qt5Agg")
from PyQt5 import QtCore
from PyQt5.QtWidgets import QApplication, QMainWindow, QMenu, QVBoxLayout, QSizePolicy, QMessageBox, QWidget, QRadioButton
from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigureCanvas
from matplotlib.figure import Figure
from PyQt5.QtWidgets import *

found_words = ["a", "b", "c", "d", "e", "f", "g", "h"]
cound_words = ['1','2','3','4','5','6','7','8']
found_pos = [ 'aaa','ssss']
count_pos = ['2','3']
class MyMplCanvas_begr(FigureCanvas):
"""Ultimately, this is a QWidget (as well as a FigureCanvasAgg, etc.)."""
def __init__(self, parent=None, width=5, height=4, dpi=100):
fig = Figure(figsize=(width, height), dpi=dpi)
self.axes = fig.add_subplot(111)
# self.compute_initial_figure()
self.axes.bar(found_words, cound_words, color=['r', 'b', 'k', 'y', 'g'])
self.axes.set_ylabel('Anzahl')
self.axes.set_xlabel('Begriffe')
self.axes.set_title('hi')
FigureCanvas.__init__(self, fig)
self.setParent(parent)
FigureCanvas.setSizePolicy(self,
QSizePolicy.Expanding,
QSizePolicy.Expanding)
FigureCanvas.updateGeometry(self)
class MyMplCanvas_pos(FigureCanvas):
"""Ultimately, this is a QWidget (as well as a FigureCanvasAgg, etc.)."""
def __init__(self, parent=None, width=5, height=4, dpi=100):
fig = Figure(figsize=(width, height), dpi=dpi)
self.axes = fig.add_subplot(111)
FigureCanvas.__init__(self, fig)
self.setParent(parent)
self.plot()
def plot(self):
colors = ['yellowgreen', 'lightcoral']
explode = (0.1, 0)  # explode 1st slice
ax = self.figure.add_subplot(111)
ax.pie(count_pos, explode=explode, labels=found_pos, colors=colors,
autopct='%1.1f%%', shadow=True, startangle=140)

class main_statistic(QtWidgets.QWidget):
def __init__(self, parent=None):
super(main_statistic, self).__init__(parent)

self.radioButton_p = QRadioButton('Pos', self)
self.radioButton_p.setGeometry(QtCore.QRect(100, 10, 95, 20))
self.radioButton_p.setCheckable(True)
self.radioButton_p.toggled.connect(self.clicked_pos)
self.radioButton_b = QRadioButton('Word', self)
self.radioButton_b.setGeometry(QtCore.QRect(200, 10, 95, 20))
self.radioButton_b.setCheckable(True)
self.radioButton_b.toggled.connect(self.clicked_begr)
self.setAttribute(QtCore.Qt.WA_DeleteOnClose)
self.main_widget = QWidget(self)
self.main_widget.setGeometry(QtCore.QRect(100, 100, 700, 500))
#self.editmenu.setHidden(True)
#self.sideMenu.setHidden(False)
l = QVBoxLayout()
self.dc = MyMplCanvas_pos( width=5, height=4, dpi=100)
self.dc.setHidden(True)
l.addWidget(self.dc)
self.dc1 = MyMplCanvas_begr( width=5, height=4, dpi=100)
self.dc1.setHidden(True)
l.addWidget(self.dc1)
self.main_widget.setLayout(l)
def clicked_pos(self):
self.dc.setHidden(False)
self.dc1.setHidden(True)
def clicked_begr(self):
self.dc.setHidden(True)
self.dc1.setHidden(False)
if __name__ == '__main__':
import sys
app = QApplication(sys.argv)
mainWin = main_statistic()
mainWin.show()
sys.exit(app.exec_())