Matplotlib 图与 PyQt5/PySide2 QSplitter Widget 之间的问题

Question

我正在尝试使用 PyQt5/PySide2 QSplitter Widget 创建 2 个可以 auto-resized 的绘图。但是，当我缩小图时，它们的标题和 x-axis 标签会重叠，如下所示。它看起来坏了。有谁知道解决这个问题的更好技巧吗？

这是我的示例代码

import numpy as np
from PySide2 import QtWidgets, QtCore
from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg
from matplotlib.figure import Figure
import matplotlib
matplotlib.use('Qt5Agg')


class MyChart(QtWidgets.QMainWindow):
    def __init__(self):
        super().__init__()

        canvas1 = FigureCanvasQTAgg(Figure(figsize=(20,12))) 
        ax1 = canvas1.figure.add_subplot(111)
        ax1.plot(np.sin(np.linspace(0, 4, 1000)))
        ax1.set_title('Chart 1')

        canvas2 = FigureCanvasQTAgg(Figure(figsize=(20,12))) 
        ax2 = canvas2.figure.add_subplot(111)
        ax2.plot(np.sin(5 * np.linspace(0, 4, 1000)))
        ax2.set_title('Chart 2')
        
        splitter = QtWidgets.QSplitter(QtCore.Qt.Vertical)
        splitter.addWidget(canvas1)
        splitter.addWidget(canvas2)
        self.setCentralWidget(splitter)
        self.show()

if __name__ == '__main__':
    app = QtWidgets.QApplication([])
    w = MyChart()
    app.exec_()

Answer 1

感谢来自 matplotlib forum 的 Jody，解决方案比我想象的要简单得多。只需在图形构造函数中包含 constrained_layout=True 即可！这是结果。

...
canvas1 = FigureCanvasQTAgg(Figure(figsize=(20,12), constrained_layout=True)) 
...
canvas2 = FigureCanvasQTAgg(Figure(figsize=(20,12), constrained_layout=True)) 
...

Matplotlib 图与 PyQt5/PySide2 QSplitter Widget 之间的问题

Problem between Matplotlib figure & the PyQt5/PySide2 QSplitter Widget

python

matplotlib

pyqt5

pyside2