PyQt4/matplotlib:如何修复 MatplotlibDeprecationWarning 由于 axes.hold()
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【中文标题】PyQt4/matplotlib:如何修复 MatplotlibDeprecationWarning 由于 axes.hold()【英文标题】:PyQt4/matplotlib:How to fix MatplotlibDeprecationWarning due to axes.hold() 【发布时间】:2019-02-14 06:03:30 【问题描述】:我在 python3.6 中使用 matplotlib。我的程序运行成功,但显示以下警告消息:
/home/sree/python/PyPrgm.py:41:MatplotlibDeprecationWarning:axes.hold 已弃用。
我引用了http://matplotlib.org/api/api_changes.html。我怎样才能摆脱这个警告?
class PyTabWidget(QTabWidget):
def __init__(self):
super(PyTabWidget,self).__init__()
tab1=FirstTab()
self.addTab(tab1,"TAB1")
class FirstTab(QTabWidget):
def __init__(self):
super(FirstTab,self).__init__()
grp1=QGroupBox("GroupBox1")
grp1.setStyleSheet("QGroupBox border:1px ; background-color:white")
graph=TwoD_GraphWindow() #2D graphWindow object
layout=QGridLayout() #create layout
layout.setColumnMinimumWidth(0, 10)
layout.setColumnMinimumWidth(2, 10)
layout.setColumnMinimumWidth(4, 10)
layout.setRowMinimumHeight(0, 10)
layout.setRowMinimumHeight(4, 10)
layout.addWidget(graph, 2, 2)
self.setLayout(layout) #set the layout
A=np.linspace(0,10,100)
graph.DrawGraph(A) #invoke DrawGraph() function
class TwoD_GraphWindow(FigureCanvas): #Class for 2D window
def __init__(self):
self.fig=Figure() #Figure() object
self.axes = self.fig.add_subplot(111)
FigureCanvas.__init__(self, self.fig) #creating FigureCanvas
self.setWindowTitle("Main") # sets Window title
def DrawGraph(self, x):#Fun for Graph plotting
self.axes.clear() #clear the axes
self.axes.plot(x,np.sin(x),'-' ) #plots the 2D graph
self.axes.hold(True) #do not clear the axis
self.axes.plot(x,np.cos(x),'--');
self.draw()
【问题讨论】:
pyqt5, matplotlib2 and the deprecation of axes.hold的可能重复 【参考方案1】:文档说Axes.hold()
现在默认总是设置为true
,所以你可以成功删除这行代码:
self.axes.hold(True)
开心就好。
Check out the Docs
【讨论】:
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