我在图中创建了一个用于显示imshow图像的子图,我添加了一个颜色条。没有动画,我可以更改颜色图,更改ComboBox的值,并正确更新颜色条。
但是如果我添加动画,每次更改色彩图时颜色条都会消失。我必须单击另一个窗口(其他软件等)或调整GUI大小以再次查看颜色栏。
以下是了解问题的示例:
import sys
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
import matplotlib
matplotlib.use('Qt5Agg')
from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigureCanvas
import matplotlib.pyplot as plt
from mpl_toolkits.axes_grid1 import make_axes_locatable
from matplotlib import animation
class FenetrePrincipale(QWidget):
def __init__(self, parent=None):
super(FenetrePrincipale, self).__init__(parent)
self.setupUi(self)
# Fonction de configuration de la classe
def setupUi(self, Form):
self.Form = Form
Form.setMinimumSize(1220, 850)
self.creation_GUI()
self.creation_figure()
self.creation_layout()
self.tabWidget.setCurrentIndex(0)
self.Bouton_quitter.clicked.connect(self.close)
self.anim = animation.FuncAnimation(self.figure, self.animate, interval=10, blit=True)
self.Widget_choixPalette_ComboBox.currentIndexChanged.connect(self.changementPalette)
def changementPalette(self, onglet):
self.image.set_cmap('binary')
self.canvas.draw()
def animate(self, i):
# a = self.thread_1.img
self.image.set_array(self.imageInit)
return [self.image]
def resizeEvent(self, QResizeEvent):
self.tabWidget.setMinimumSize(QSize(self.width() - 20, self.height() - 60))
def creation_GUI(self):
self.tabWidget = QTabWidget()
self.tab1 = QWidget()
self.tabWidget.addTab(self.tab1, " Tab1 ")
self.Widget_choixPalette_Label = QLabel(self.tab1)
self.Widget_choixPalette_Label.setText("Text1")
self.Widget_choixPalette_ComboBox = QComboBox(self.tab1)
self.Widget_choixPalette_ComboBox.addItem("Try1")
self.Widget_choixPalette_ComboBox.addItem("Try2")
self.Bouton_quitter = QPushButton(self.tab1)
self.Bouton_quitter.setText("Quit")
def creation_layout(self):
LayoutForm = QGridLayout(self)
LayoutForm.addWidget(self.tabWidget, 0, 0, 1, 1)
LayoutTab1 = QGridLayout(self.tab1)
LayoutTab1.addWidget(self.Widget_choixPalette_Label, 0, 1, 1, 1)
LayoutTab1.addWidget(self.Widget_choixPalette_ComboBox, 1, 1, 1, 1)
self.Widget_choixPalette_ComboBox.setMinimumWidth(200)
LayoutTab1.addWidget(self.canvas, 2, 0, 1, 3)
LayoutTab1.addWidget(self.Bouton_quitter, 2, 3, 1, 1, Qt.AlignRight | Qt.AlignBottom)
LayoutTab1.setRowStretch(2, 1)
LayoutTab1.setColumnStretch(0, 1)
LayoutTab1.setColumnStretch(2, 1)
def creation_figure(self):
# Create figure (transparent background)
self.figure = plt.figure()
# self.figure.patch.set_facecolor('None')
self.canvas = FigureCanvas(self.figure)
self.canvas.setStyleSheet("background-color:transparent;")
# Adding one subplot for image
self.axe0 = self.figure.add_subplot(111)
self.axe0.get_xaxis().set_visible(False)
self.axe0.get_yaxis().set_visible(False)
# Data for init image
self.imageInit = [[255] * 320 for i in range(240)]
self.imageInit[0][0] = 0
# Init image and add colorbar
self.image = self.axe0.imshow(self.imageInit, interpolation='none')
divider = make_axes_locatable(self.axe0)
cax = divider.new_vertical(size="5%", pad=0.05, pack_start=True)
self.colorbar = self.figure.add_axes(cax)
self.figure.colorbar(self.image, cax=cax, orientation='horizontal')
plt.subplots_adjust(left=0, bottom=0.05, right=1, top=1, wspace=0, hspace=0)
self.canvas.draw()
if __name__ == '__main__':
app = QApplication(sys.argv)
# QApplication.setStyle(QStyleFactory.create("plastique"))
form = FenetrePrincipale()
form.show()
sys.exit(app.exec_())
操作系统:Windows 7 Pro
Matplotlib版本:2.1.0
Matplotlib后端:Qt5Agg
Python版本:3.6
答案 0 :(得分:1)
blit=False
在动画中使用blit=False
。否则只有图像本身会被更新,并且整个画布的重绘被推迟到某些事件,这使得需要重新绘制,例如,调整大小事件。
如果您无法使用blit=False
进行约会,您可以暂停动画,更改颜色图,绘制画布,然后继续动画。
def changementPalette(self, onglet):
self.anim.event_source.stop()
if onglet==0:
self.image.set_cmap('viridis')
else:
self.image.set_cmap('binary')
self.canvas.draw_idle()
self.anim.event_source.start()