【发布时间】：2018-06-24 16:17:19
【问题描述】：
使用下面的代码，我可以在 pyqt5 中设计的 gui 中绘制基本的 matplotlib 图（例如给它一个 xs 和 ys 的列表并绘制点）。但是，我无法插入高级模块，例如 seaborn 或 networkx（让我们专注于 seaborn），它们利用 matplotlib 的绘图功能来显示您使用这些函数生成的数据。
from PyQt5 import QtCore, QtGui, QtWidgets
import numpy as np
import pandas as pd
import matplotlib.pyplot as plt
import seaborn as sns
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(800, 600)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.widget = MplWidget(self.centralwidget)
self.widget.setGeometry(QtCore.QRect(200, 110, 391, 311))
self.widget.setObjectName("widget")
self.label = QtWidgets.QLabel(self.centralwidget)
self.label.setGeometry(QtCore.QRect(250, 40, 231, 61))
self.label.setObjectName("label")
self.pushButton = QtWidgets.QPushButton(self.centralwidget)
self.pushButton.setGeometry(QtCore.QRect(50, 180, 113, 32))
self.pushButton.setObjectName("pushButton")
MainWindow.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(MainWindow)
self.menubar.setGeometry(QtCore.QRect(0, 0, 800, 22))
self.menubar.setObjectName("menubar")
MainWindow.setMenuBar(self.menubar)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
self.pushButton.clicked.connect(self.Graphitdude)
def Graphitdude(self):
Lister3 = pd.read_csv("Betadata.csv",index_col=[0])#just a collection of labels and assorted correlation values ranging from 0 to 1 to be constructed into a heatmap.
plot = sns.heatmap(Lister3) # This is the problematic function, it does it, and I can display it IN LINE but not in the gui canvas?
plt.yticks(rotation=0)
self.widget.canvas.ax.plot()#if passed discreet x and y values, it graphs it, but it doesnt like to pass the seaborn figure?
self.widget.canvas.draw()
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
self.label.setText(_translate("MainWindow", "<html><head/><body><p align=\"center\"><span style=\" font-size:24pt; font-weight:600;\">Test</span></p></body></html>"))
self.pushButton.setText(_translate("MainWindow", "PushButton"))
from mplwidget import MplWidget
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
MainWindow = QtWidgets.QMainWindow()
ui = Ui_MainWindow()
ui.setupUi(MainWindow)
MainWindow.show()
sys.exit(app.exec_())
mplwidget.py如下：
from PyQt5 import QtWidgets
from matplotlib.figure import Figure
from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as Canvas
import matplotlib
matplotlib.use('QT5Agg')
# Matplotlib canvas class to create figure
class MplCanvas(Canvas):
def __init__(self):
self.fig = Figure()
self.ax = self.fig.add_subplot(111)
Canvas.__init__(self, self.fig)
Canvas.setSizePolicy(self, QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Expanding)
Canvas.updateGeometry(self)
# Matplotlib widget
class MplWidget(QtWidgets.QWidget):
def __init__(self, parent=None):
QtWidgets.QWidget.__init__(self, parent) # Inherit from QWidget
self.canvas = MplCanvas() # Create canvas object
self.vbl = QtWidgets.QVBoxLayout() # Set box for plotting
self.vbl.addWidget(self.canvas)
self.setLayout(self.vbl)
我最好的想法是这些函数正在设计自己的matplotlib图（或子图，不确定），而我尝试过的方法无法将这个图提供给小部件代码。
sns.heatmap(xxxx) 返回“ax”，应该可以被mplwidget.py脚本使用吧？我可以将这些传递给画布以显示 seaborn 图形吗？
【问题讨论】：
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嗨，一个有趣的问题，但从这个：
I cannot plug in advanced modules，很难理解您面临的确切问题。你能详细说明一下吗？我的猜测是，您可以获取 any 图形的画布，包括使用 seaborn 或 networkx 生成的图形，然后将该画布推送到您想要的任何地方。
标签： python matplotlib pyqt5 seaborn subplot