在 MatplotlibWidget pyqt5 中使用 FigureCanvasQTAgg 时出错 [英] Error using FigureCanvasQTAgg in MatplotlibWidget pyqt5
问题描述
我想用 pyqt5 使用 matplotlib 在我的 GUI 上绘图.我创建了一个名为 MatplotlibWidget 的类,它创建了我的绘图的图形和画布.但是我在使用 FigureCanvasQTAgg 函数(这是一个 matplotlib 函数)生成我的画布时遇到了问题.
I would like to plot on my GUI with pyqt5 using matplotlib. I have created a class called MatplotlibWidget which create the figure and canvas of my plot. But I have a problem to generate my canvas with the FigureCanvasQTAgg function (which is a matplotlib function).
这是我的代码中存在问题的部分:
Here the part of my code which is bugging:
import matplotlib.pyplot as plt
from matplotlib.backends.backend_qt4agg import FigureCanvasQTAgg
from matplotlib.figure import Figure
#Some more code...not relevant
class MatplotlibWidget(QWidget):
def __init__(self):
QWidget.__init__(self)
self.fig = Figure()
self.canvas = FigureCanvasQTAgg(self.fig) #line 86
self.axis = self.fig.add_subplot(111)
self.layoutVerticalTest = QVBoxLayout(self)
self.layoutVerticalTest.addWidget(self.canvas)
我遇到此错误:
File "/Users/AlexisTuil/Desktop/projet inno/sc_analysis/visualisation.py", line 86, in
__init__self.canvas = FigureCanvasQTAgg(self.fig)
File "/usr/local/lib/python3.5/site packages/matplotlib/backends/backend_qt4agg.py", line 76, in
__init__FigureCanvasQT.__init__(self, figure)
File "/usr/local/lib/python3.5/site-packages/matplotlib/backends/backend_qt4.py", line 71, in
__init__QtWidgets.QWidget.__init__(self)
TypeError: __init__() missing 1 required positional argument: 'figure'
Abort trap: 6
我在许多论坛上搜索过,但找不到解决我问题的方法.我不明白为什么缺少位置参数".请帮帮我!
I've searched on many forums but i couldn't find out a solution to my problem. I don't get it why there is a missing "positional argument". Please help me !
我在使用python3.5 64bit的MacOS El Capitan上.如果有帮助,我用 pip 安装了 matplotlib.
I am on MacOS El Capitan with python3.5 64bit. I installed matplotlib with pip if it can help.
谢谢大家:)
推荐答案
如果使用pyqt5,请执行以下操作:
If using pyqt5, do this:
from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg
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