Matplotlib 2.1.0导航工具栏中的主页按钮嵌入pyqt5窗口,它不再正常工作
我将matplotlib嵌入在qtdesigner中创建的窗口中,即pyqt5。我有3个文件 窗口:Matplotlib 2.1.0导航工具栏中的主页按钮嵌入pyqt5窗口,它不再正常工作,matplotlib,pyqt5,python-3.6,Matplotlib,Pyqt5,Python 3.6,我将matplotlib嵌入在qtdesigner中创建的窗口中,即pyqt5。我有3个文件 窗口: from PyQt5 import QtCore, QtGui, QtWidgets class Ui_MplMainWindow(object): def setupUi(self, MplMainWindow): MplMainWindow.setObjectName("MplMainWindow") MplMainWindow.resize(628
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_MplMainWindow(object):
def setupUi(self, MplMainWindow):
MplMainWindow.setObjectName("MplMainWindow")
MplMainWindow.resize(628, 416)
self.centralwidget = QtWidgets.QWidget(MplMainWindow)
self.centralwidget.setObjectName("centralwidget")
self.gridLayout_2 = QtWidgets.QGridLayout(self.centralwidget)
self.gridLayout_2.setObjectName("gridLayout_2")
self.mpl = MplWidgetTest(self.centralwidget)
sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Expanding)
sizePolicy.setHorizontalStretch(0)
sizePolicy.setVerticalStretch(0)
sizePolicy.setHeightForWidth(self.mpl.sizePolicy().hasHeightForWidth())
self.mpl.setSizePolicy(sizePolicy)
self.mpl.setObjectName("mpl")
self.gridLayout_2.addWidget(self.mpl, 0, 0, 1, 1)
self.groupBox = QtWidgets.QGroupBox(self.centralwidget)
self.groupBox.setMaximumSize(QtCore.QSize(95, 16777215))
self.groupBox.setObjectName("groupBox")
self.gridLayout = QtWidgets.QGridLayout(self.groupBox)
self.gridLayout.setObjectName("gridLayout")
self.buttonDrawDate = QtWidgets.QPushButton(self.groupBox)
self.buttonDrawDate.setMaximumSize(QtCore.QSize(75, 16777215))
self.buttonDrawDate.setObjectName("buttonDrawDate")
self.gridLayout.addWidget(self.buttonDrawDate, 0, 0, 1, 1)
self.buttonErase = QtWidgets.QPushButton(self.groupBox)
self.buttonErase.setMaximumSize(QtCore.QSize(75, 16777215))
self.buttonErase.setObjectName("buttonErase")
self.gridLayout.addWidget(self.buttonErase, 1, 0, 1, 1)
spacerItem = QtWidgets.QSpacerItem(20, 40, QtWidgets.QSizePolicy.Minimum, QtWidgets.QSizePolicy.Expanding)
self.gridLayout.addItem(spacerItem, 2, 0, 1, 1)
self.gridLayout_2.addWidget(self.groupBox, 0, 1, 1, 1)
MplMainWindow.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(MplMainWindow)
self.menubar.setGeometry(QtCore.QRect(0, 0, 628, 21))
self.menubar.setObjectName("menubar")
MplMainWindow.setMenuBar(self.menubar)
self.statusbar = QtWidgets.QStatusBar(MplMainWindow)
self.statusbar.setObjectName("statusbar")
MplMainWindow.setStatusBar(self.statusbar)
self.retranslateUi(MplMainWindow)
QtCore.QMetaObject.connectSlotsByName(MplMainWindow)
def retranslateUi(self, MplMainWindow):
_translate = QtCore.QCoreApplication.translate
MplMainWindow.setWindowTitle(_translate("MplMainWindow", "MainWindow"))
self.groupBox.setTitle(_translate("MplMainWindow", "GroupBox"))
self.buttonDrawDate.setText(_translate("MplMainWindow", "Draw"))
self.buttonErase.setText(_translate("MplMainWindow", "Erase"))
from mplwidgettest import MplWidgetTest
Matplot小部件类:
from PyQt5.QtWidgets import QSizePolicy, QWidget, QVBoxLayout
from matplotlib.figure import Figure
from matplotlib.backends.backend_qt5agg import (
FigureCanvasQTAgg as FigureCanvas,
NavigationToolbar2QT as NavigationToolbar)
class MplCanvas(FigureCanvas):
"""Class to represent the FigureCanvas widget"""
def __init__(self):
# setup Matplotlib Figure and Axis
self.fig = Figure()
self.ax = self.fig.add_subplot(111)
# initialization of the canvas
FigureCanvas.__init__(self, self.fig)
# we define the widget as expandable
FigureCanvas.setSizePolicy(self,
QSizePolicy.Expanding,
QSizePolicy.Expanding)
# notify the system of updated policy
FigureCanvas.updateGeometry(self)
class MplWidgetTest(QWidget):
"""Widget defined in Qt Designer"""
def __init__(self, parent = None):
# initialization of Qt MainWindow widget
QWidget.__init__(self, parent)
# set the canvas to the Matplotlib widget
self.canvas = MplCanvas()
# create a NavigatioToolbar
self.ntb=NavigationToolbar(self.canvas,self)
# create a vertical box layout
self.vbl = QVBoxLayout()
# add mpl widget to vertical box
self.vbl.addWidget(self.canvas)
# add NavigationToolBar to vertical box
self.vbl.addWidget(self.ntb)
# set the layout to th vertical box
self.setLayout(self.vbl)
以及调用其他文件的主文件:
import sys
from IHMDrawDates import Ui_MplMainWindow
from PyQt5.QtWidgets import QMainWindow, QApplication, QWidget
import numpy as np
import datetime
class DesignerMainWindow(QMainWindow, Ui_MplMainWindow):
def __init__(self, parent = None):
super(DesignerMainWindow, self).__init__(parent)
self.setupUi(self)
# connect the signals with the slots
self.buttonDrawDate.clicked.connect(self.drawDate)
self.buttonErase.clicked.connect(self.eraseDate)
def drawDate(self):
# base = datetime.datetime(2018, 1, 1)
# x = np.array([base + datetime.timedelta(hours=i) for i in range(24)])
# y = np.random.rand(len(x))
x = np.arange(0,100,0.1)
y = np.sin(x)
self.mpl.canvas.ax.plot(x,y)
self.mpl.canvas.ax.relim()
self.mpl.canvas.ax.autoscale(True)
self.mpl.canvas.draw()
def eraseDate(self):
self.mpl.canvas.ax.clear()
self.mpl.canvas.draw()
if __name__ == '__main__':
app=0
app = QApplication(sys.argv)
dmw = DesignerMainWindow()
# show it
dmw.show()
sys.exit(app.exec_())
更新到matplotlib 2.1.0后,“主页”按钮无法正常工作。它始终返回初始清洁轴。例如:
1.-单击绘图按钮前:
2.-点击绘图按钮:
3.-点击放大:
4.-点击主页:
更新之前,按HOME(主页)按钮返回到图像编号2,现在使用matplotlib 2.1.0返回到图像4。任何想法
当我加上:
def drawDate(self):
x = np.arange(0,100,0.1)
y = np.sin(x)
self.mpl.canvas.ax.plot(x,y)
self.mpl.canvas.ax.relim()
self.mpl.canvas.ax.autoscale(True)
self.mpl.ntb.update()
self.mpl.canvas.draw()
def eraseDate(self):
self.mpl.canvas.ax.clear()
self.mpl.ntb.update()
self.mpl.canvas.draw()
然后发生:
我想这篇文章给出了这个问题的答案,只是为了Tkinter,而不是PyQt: “主页”按钮可恢复绘图的初始状态,这通常是主页按钮所需的功能 在这里,您显然希望它在单击按钮后恢复绘图状态。这可以通过调用工具栏的
update()
方法来完成
在这种情况下,您可以添加
self.mpl.ntb.update()
在drawDate
方法中
然后,该方法可能看起来像
def drawDate(self):
x = np.arange(0,100,0.1)
y = np.sin(x)
self.mpl.canvas.ax.plot(x,y)
self.mpl.canvas.ax.relim()
self.mpl.canvas.ax.autoscale(True)
self.mpl.ntb.update() # <-- add this
#self.mpl.ntb.push_current() # and possibly this(?)
self.mpl.canvas.draw()
def eraseDate(self):
self.mpl.canvas.ax.clear()
self.mpl.ntb.update() # <-- add this
#self.mpl.ntb.push_current() # and possibly this(?)
self.mpl.canvas.draw()
def提取日期(自):
x=np.arange(0100,0.1)
y=np.sin(x)
self.mpl.canvas.ax.plot(x,y)
self.mpl.canvas.ax.relim()
self.mpl.canvas.ax.autoscale(真)
self.mpl.ntb.update()#谢谢你的回答,但是当我在drawDate方法的HOME按钮中添加self.mpl.ntb.update()时,只返回到点击缩放按钮后显示的图像,而不返回到按下draw按钮时显示的图像。任何想法。如果有必要,我可以编辑问题并加入图片来解释。我不知道这里会出什么问题,但我添加了一些代码来说明这里的意思。感谢您的时间,但这仍然很糟糕,我必须对每个更新到matplotlib 2.1.0的用户进行降级,并添加一条警告,指示不应将其更新到matplotlib 2.1.0。这真的很烦人,请改用matplotlib 2.1.2。根据添加的self.mpl.ntb.push\u current()
会有所帮助。我无法确认或伪造,因为对我来说,self.mpl.ntb.update()
就足够了。这终于奏效了。我非常感激。我在drawDate和eraseDate方法中添加了self.mpl.ntb.push_current()。