我matplotlib在繪圖畫布中嵌入了一個圖形。這個想法是能夠改變figure和axes屬性。但是，初始化后我無法修改軸。下面是一個簡單的例子：
import sys
import matplotlib
matplotlib.use('Qt5Agg')
from PyQt5 import QtCore, QtWidgets
from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg
from matplotlib.figure import Figure
class MplCanvas(FigureCanvasQTAgg):
def __init__(self, parent=None, width=5, height=4, dpi=100):
self.fig = Figure(figsize=(width, height), dpi=dpi)
self.axes = self.fig.add_subplot(111)
super(MplCanvas, self).__init__(self.fig)
class MainWindow(QtWidgets.QWidget):
def __init__(self, *args, **kwargs):
super(MainWindow, self).__init__(*args, **kwargs)
self.layout = QtWidgets.QVBoxLayout(self)
self.sc = MplCanvas(self, width=5, height=4, dpi=100)
self.sc.axes.plot([0,1,2,3,4], [10,1,20,3,40])
self.layout.addWidget(self.sc)
button = QtWidgets.QPushButton('change figure properties')
button.clicked.connect(self.changeProp)
self.layout.addWidget(button)
self.show()
def changeProp(self):
# here is to change prop, e.g., tickslabel, size, color, colorbar, legend, position, ...etc
"I have tried the following to change the ticks, but doesn't work"
self.sc.fig.axes[0].set_xticklabels(self.sc.fig.axes[0].get_xticklabels(), fontsize=10, color='blue', rotation=90)
"I have also tried this, but not working"
self.sc.fig.axes[0].xaxis.set_tick_params(fontsize=10, color='blue', rotation=90)
"""
UserWarning: FixedFormatter should only be used together with FixedLocator
self.sc.axes.set_xticklabels(self.sc.axes.get_xticklabels(), fontsize=10, color='blue', rotation=90)
"""
"What is the best API to solve this "
if __name__ == '__main__':
app = QtWidgets.QApplication(sys.argv)
w = MainWindow()
app.exec_()
uj5u.com熱心網友回復：
顯然 set_tick_params 中的“字體大小”引數不，我洗掉了它。
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