在tabWidget
我正在学习pyqt 5和python，并希望创建一个简单的应用程序，它将显示带有标签页面和matplotlib图形的布局。当我更改组合框时，我想在matplotlib图中显示一个国家的形状文件，但是，我只能显示第一个shapefile。 `下面是简化的代码，显示了布局和问题，而不是示例的shapefile，我只是有一些稍微不同的函数，当组合框被更改时应该改变。但是，仅显示了第一个图形，尽管变量是从组合框传递的，但未绘制新函数。基本上，在这一点上，我想做的就是能够将组合框向下拉选择另一个国家并看到新图形出现。其他建议也很感激。下面的代码示例。
import numpy as np
import sys
from PyQt5.QtCore import QUrl,QRect,QSize
from PyQt5.QtWebEngineWidgets import QWebEngineSettings, QWebEngineView, QWebEnginePage
from PyQt5.QtWidgets import (QApplication, QMainWindow,QMenu,QHBoxLayout,QVBoxLayout,QFrame,QLabel,
QSizePolicy, QMessageBox, QWidget, QPushButton,QRadioButton,
QTextBrowser,QDialog,QGroupBox,QTabWidget,QComboBox,QListWidget)
from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigureCanvas
from matplotlib.figure import Figure
import shapefile as shp
import matplotlib.pyplot as plt
import random
data_square=[(0,0),(1,0),(1,1),(0,1),(0,0),(1,1)]
data_rectangle=[(0,0),(2,0),(2,1),(0,1),(0,0),(1,1)]
class MyBrowser(QWebEnginePage):
def userAgentForUrl(self, url):
return "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2228.0 Safari/537.36"
class Web(QWebEngineView):
def load(self, url):
self.setUrl(QUrl(url))
def adjustTitle(self):
self.setWindowTitle(self.title())
def disableJS(self):
settings = QWebEngineSettings.globalSettings()
settings.setAttribute(QWebEngineSettings.JavascriptEnabled, False)
class App(QDialog):
def __init__(self):
super().__init__()
self.title= 'Test Building PyQT5 with Tabs'
self.left = 40
self.top = 40
self.width = 400
self.height = 100
self.initUI()
def initUI(self):
#self.setWindowTitle(self.title)
#self.setGeometry(100,100,1000,800)
#self.create_my_layout()
#my_main_window_layout=QVBoxLayout()
#self.setLayout(my_main_window_layout)
#self.show()
self.setWindowTitle(self.title)
self.setGeometry(self.left, self.top, self.width, self.height)
self.create_my_layout()
windowLayout = QVBoxLayout()
#windowLayout.addWidget(self.horizontalGroupBox)
self.setLayout(windowLayout)
self.show()
def my_combo_active(self,index):
my_specific_country = self.my_combo.itemText(index)
if my_specific_country=='Afghanistan':
m = PlotCanvas(self.my_graphic, width=5, height=5, dpi=100,atest='abc',sf=data_square)
print('A')
if my_specific_country=='Bangladesh':
m = PlotCanvas(self.my_graphic, width=5, height=5, dpi=100,atest='def',sf=data_rectangle)
print('B')
def create_my_layout(self):
# Set up group boxes along left side of window
my_groupbox1=QGroupBox('box 1')
my_groupbox2=QGroupBox('box 2')
my_button1=QRadioButton('a button')
my_button1.setChecked(True)
#radiobutton.toggled.connect(self.on_radio_button_toggled)
my_button2=QRadioButton('another button')
my_button5=QRadioButton('more button')
my_button5.setChecked(True)
my_button6=QRadioButton('even more button')
v_box0=QVBoxLayout()
v_box0.addWidget(my_button1)
v_box0.addWidget(my_button2)
my_groupbox1.setLayout(v_box0)
v_box00=QVBoxLayout()
v_box00.addWidget(my_button5)
v_box00.addWidget(my_button6)
my_groupbox2.setLayout(v_box00)
#set up Tab Widget to end up on right side
my_tabWidget=QTabWidget()
tab1=QWidget()
tab2=QWidget()
my_tabWidget.addTab(tab1,"Tab 1")
my_tabWidget.addTab(tab2,"Tab 2")
# Add To Tab 1
my_label_country=QLabel('Country')
my_label_country.setMaximumSize(QSize(1000,50))
my_label_map=QLabel('Map')
self.my_combo=QComboBox()
self.my_combo.activated.connect(self.my_combo_active)
self.my_graphic=QFrame()
self.my_graphic.setMinimumSize(QSize(500,500))
my_list1=QListWidget()
my_list2=QListWidget()
my_list3=QListWidget()
my_button_complete=QPushButton('')
#my_list4=QListWidget()
tab1.v_box1=QVBoxLayout()
tab1.v_box1.addWidget(self.my_combo)
tab1.v_box1.addWidget(my_label_map)
tab1.v_box1.addWidget(self.my_graphic)
tab1.v_box1.addWidget(my_list1)
tab1.v_box2=QVBoxLayout()
tab1.v_box2.addWidget(my_list2)
tab1.v_box3=QVBoxLayout()
tab1.v_box3.addWidget(my_list3)
tab1.v_box3.addWidget(my_button_complete)
tab1.h_box1=QHBoxLayout()
tab1.h_box1.addLayout(tab1.v_box1)
tab1.h_box1.addLayout(tab1.v_box2)
tab1.h_box1.addLayout(tab1.v_box3)
tab1.setLayout(tab1.h_box1)
# now add Elements to Tab 2
my_label_webpage=QLabel('A Web Page')
my_label_webpage.setMaximumSize(QSize(1000,20))
#my_combo=QComboBox()
# PC version
#my_webpage=QWebView()
#Mac version
my_webpage=Web()
my_list_exText=QListWidget()
tab2.v_box1=QVBoxLayout()
tab2.v_box1.addWidget(my_webpage)
tab2.v_box2=QVBoxLayout()
tab2.v_box2.addWidget(my_list_exText)
tab2.h_box1=QHBoxLayout()
tab2.h_box1.addLayout(tab2.v_box1)
tab2.setLayout(tab2.h_box1)
my_webpage.load(QUrl("https://google.com"))
my_webpage.show()
# arrange Group Boxes vertically and Tab on the Right
v_box1=QVBoxLayout()
v_box1.addWidget(my_groupbox1)
v_box1.addWidget(my_groupbox2)
v_box2=QVBoxLayout()
v_box2.addWidget(my_tabWidget)
h_box1=QHBoxLayout()
h_box1.addLayout(v_box1)
h_box1.addLayout(v_box2)
self.setLayout(h_box1)
m = PlotCanvas(self.my_graphic, width=5, height=5, dpi=100,atest='xyz',sf=data_square)
# Fill the ComboBox of Countries
my_sample_countries= ['Afghanistan','Bangladesh']
for country in my_sample_countries:
self.my_combo.addItem(country)
class PlotCanvas(FigureCanvas):
def __init__(self, parent=None, width=5, height=4, dpi=100,atest='xyz',sf=data_square):
fig = Figure(figsize=(width, height), dpi=dpi)
axes = fig.add_subplot(111)
axes.hold(False)
FigureCanvas.__init__(self, fig)
self.setParent(parent)
FigureCanvas.setSizePolicy(self,
QSizePolicy.Expanding,
QSizePolicy.Expanding)
FigureCanvas.updateGeometry(self)
ax = self.figure.add_subplot(111)
x = np.linspace(0, 3 * np.pi, 400)
y = np.sin(x ** 3)
print('atest',atest)
if atest=='abc':
x = np.linspace(0, 2 * np.pi, 400)
y = np.sin(x ** 2)
print('A case')
if atest=='def':
x = np.linspace(0, 4 * np.pi, 400)
y = np.sin(x ** 4)
print('B case')
ax.plot(x,y)
if __name__ == '__main__':
app = QApplication(sys.argv)
ex = App()
sys.exit(app.exec_())
1 个答案:
答案 0 :(得分：0)
必须手动强制数字绘制
ax.figure.canvas.draw()
self.show()
试一试：
import numpy as np
import sys
from PyQt5.QtCore import QUrl,QRect,QSize
from PyQt5.QtWebEngineWidgets import QWebEngineSettings, QWebEngineView, QWebEnginePage
from PyQt5.QtWidgets import (QApplication, QMainWindow,QMenu,QHBoxLayout,QVBoxLayout,QFrame,QLabel,
QSizePolicy, QMessageBox, QWidget, QPushButton,QRadioButton,
QTextBrowser,QDialog,QGroupBox,QTabWidget,QComboBox,QListWidget)
from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigureCanvas
from matplotlib.figure import Figure
import shapefile as shp
import matplotlib.pyplot as plt
import random
data_square=[(0,0),(1,0),(1,1),(0,1),(0,0),(1,1)]
data_rectangle=[(0,0),(2,0),(2,1),(0,1),(0,0),(1,1)]
class MyBrowser(QWebEnginePage):
def userAgentForUrl(self, url):
return "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2228.0 Safari/537.36"
class Web(QWebEngineView):
def load(self, url):
self.setUrl(QUrl(url))
def adjustTitle(self):
self.setWindowTitle(self.title())
def disableJS(self):
settings = QWebEngineSettings.globalSettings()
settings.setAttribute(QWebEngineSettings.JavascriptEnabled, False)
class App(QDialog):
def __init__(self):
super().__init__()
self.title= 'Test Building PyQT5 with Tabs'
self.left = 40
self.top = 40
self.width = 400
self.height = 100
self.initUI()
def initUI(self):
#self.setWindowTitle(self.title)
#self.setGeometry(100,100,1000,800)
#self.create_my_layout()
#my_main_window_layout=QVBoxLayout()
#self.setLayout(my_main_window_layout)
#self.show()
self.setWindowTitle(self.title)
self.setGeometry(self.left, self.top, self.width, self.height)
self.create_my_layout()
windowLayout = QVBoxLayout()
#windowLayout.addWidget(self.horizontalGroupBox)
self.setLayout(windowLayout)
self.show()
def my_combo_active(self,index):
my_specific_country = self.my_combo.itemText(index)
if my_specific_country == 'Afghanistan':
m = PlotCanvas(self.my_graphic, width=5, height=5, dpi=100,atest='abc',sf=data_square)
print('A')
if my_specific_country == 'Bangladesh':
m = PlotCanvas(self.my_graphic, width=5, height=5, dpi=100,atest='def',sf=data_rectangle)
print('B')
def create_my_layout(self):
# Set up group boxes along left side of window
my_groupbox1=QGroupBox('box 1')
my_groupbox2=QGroupBox('box 2')
my_button1=QRadioButton('a button')
my_button1.setChecked(True)
#radiobutton.toggled.connect(self.on_radio_button_toggled)
my_button2=QRadioButton('another button')
my_button5=QRadioButton('more button')
my_button5.setChecked(True)
my_button6=QRadioButton('even more button')
v_box0=QVBoxLayout()
v_box0.addWidget(my_button1)
v_box0.addWidget(my_button2)
my_groupbox1.setLayout(v_box0)
v_box00=QVBoxLayout()
v_box00.addWidget(my_button5)
v_box00.addWidget(my_button6)
my_groupbox2.setLayout(v_box00)
#set up Tab Widget to end up on right side
my_tabWidget=QTabWidget()
tab1=QWidget()
tab2=QWidget()
my_tabWidget.addTab(tab1,"Tab 1")
my_tabWidget.addTab(tab2,"Tab 2")
# Add To Tab 1
my_label_country = QLabel('Country')
my_label_country.setMaximumSize(QSize(1000,50))
my_label_map = QLabel('Map')
self.my_combo = QComboBox()
self.my_combo.activated.connect(self.my_combo_active)
self.my_graphic=QFrame()
self.my_graphic.setMinimumSize(QSize(500,500))
my_list1 = QListWidget()
my_list2 = QListWidget()
my_list3 = QListWidget()
my_button_complete=QPushButton('')
#my_list4=QListWidget()
tab1.v_box1 = QVBoxLayout()
tab1.v_box1.addWidget(self.my_combo)
tab1.v_box1.addWidget(my_label_map)
tab1.v_box1.addWidget(self.my_graphic)
tab1.v_box1.addWidget(my_list1)
tab1.v_box2 = QVBoxLayout()
tab1.v_box2.addWidget(my_list2)
tab1.v_box3 = QVBoxLayout()
tab1.v_box3.addWidget(my_list3)
tab1.v_box3.addWidget(my_button_complete)
tab1.h_box1 = QHBoxLayout()
tab1.h_box1.addLayout(tab1.v_box1)
tab1.h_box1.addLayout(tab1.v_box2)
tab1.h_box1.addLayout(tab1.v_box3)
tab1.setLayout(tab1.h_box1)
# now add Elements to Tab 2
my_label_webpage=QLabel('A Web Page')
my_label_webpage.setMaximumSize(QSize(1000,20))
#my_combo=QComboBox()
# PC version
#my_webpage=QWebView()
#Mac version
my_webpage=Web()
my_list_exText=QListWidget()
tab2.v_box1=QVBoxLayout()
tab2.v_box1.addWidget(my_webpage)
tab2.v_box2=QVBoxLayout()
tab2.v_box2.addWidget(my_list_exText)
tab2.h_box1=QHBoxLayout()
tab2.h_box1.addLayout(tab2.v_box1)
tab2.setLayout(tab2.h_box1)
my_webpage.load(QUrl("https://google.com"))
my_webpage.show()
# arrange Group Boxes vertically and Tab on the Right
v_box1=QVBoxLayout()
v_box1.addWidget(my_groupbox1)
v_box1.addWidget(my_groupbox2)
v_box2=QVBoxLayout()
v_box2.addWidget(my_tabWidget)
h_box1=QHBoxLayout()
h_box1.addLayout(v_box1)
h_box1.addLayout(v_box2)
self.setLayout(h_box1)
#m = PlotCanvas(self.my_graphic, width=5, height=5, dpi=100,atest='xyz',sf=data_square)
m = PlotCanvas(self.my_graphic, width=5, height=5, dpi=100,atest='xyz',sf=data_square)
# Fill the ComboBox of Countries
my_sample_countries= ['Afghanistan','Bangladesh']
for country in my_sample_countries:
self.my_combo.addItem(country)
class PlotCanvas(FigureCanvas):
def __init__(self, parent=None, width=5, height=4, dpi=100, atest='xyz', sf=data_square):
fig = Figure(figsize=(width, height), dpi=dpi)
axes = fig.add_subplot(111)
axes.hold(False)
FigureCanvas.__init__(self, fig)
self.setParent(parent)
FigureCanvas.setSizePolicy(self,
QSizePolicy.Expanding,
QSizePolicy.Expanding)
FigureCanvas.updateGeometry(self)
ax = self.figure.add_subplot(111)
x = np.linspace(0, 3 * np.pi, 400)
y = np.sin(x ** 3)
print('atest', atest)
if atest == 'abc':
x = np.linspace(0, 2 * np.pi, 400)
y = np.sin(x ** 2)
print('A case')
if atest == 'def':
x = np.linspace(0, 4 * np.pi, 400)
y = np.sin(x ** 4)
print('B case')
ax.plot(x,y)
# have to manually force a figure draw
ax.figure.canvas.draw() # +
self.show() # +
if __name__ == '__main__':
app = QApplication(sys.argv)
ex = App()
sys.exit(app.exec_())
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