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# when the code works but it's meaningless to include it
### When I can't get this part to work and I'd need your code

如何在 matplotlib 中隐藏或显示 Axes 对象(子图),以便在同一图中的不同 Axes 之间切换?

我正在使用 matplotlib 在 Tkinter GUI 中显示图形,我想使用单选按钮在同一图中的不同轴之间切换。

基本上我会有一些单选按钮链接到 IntVar():

graphic_version = tk.IntVar()
tk.Radiobutton(root, text='Option1', variable=graphic_version, value=1).pack()
tk.Radiobutton(root, text='Option2', variable=graphic_version, value=2).pack()

然后,我将使用自定义方法跟踪 IntVar(),并使用请求的图形更新我的图形:

choice.trace("w", lambda choice: myGraphic.showGraphic(version))

这样每次用户单击单选按钮时,图形都会更新为不同版本的绘图。现在的问题是我不知道如何正确地进行 showGraphic。假设我使用这个类系统来获得 2 个不同版本的绘制相同数据:

class Version1():
    def __init__(self, ax, data):
        self.ax = ax #This is a Axes object
        self.data = self._formatDataV1(data)

        self._draw()
        self._setOptions()
        self.hide()

    def _formatDataV1(self, data):
        #Here I manipulate the raw data to extract the info I need for this version
        #Just a bunch of math algorithms it works fine

    def _setOptions(self):
        #Here I can overwrite or change settings specific for this version

    def _draw(self):
        self.ax.bar(self.data[0], self.data[1], width=1, color='red')
        self._setOptions()

    def hide(self):
        ###How do I remove the ax without affecting the figure?

    def show(self):
        ###If I want to see this version again I don't want the cost of redrawing   


class Version2():
    def __init__(self, ax, data):
        self.ax = ax #This is a Axes object
        self.data = self._formatDataV1(data)

        self._draw()
        self._setOptions()
        self.hide()

    def _formatDataV2(self, data):
        #The data is manipulated differently here to extract new information

    def _setOptions(self):
        #These options are specific to the version2 to get the display right

    def _draw(self): #Drawing a different version of the graphic with differently formated data
        self.ax.plot(self.data[0], self.data[1])
        self._setOptions()

    def hide(self):
        ###How do I remove the ax without affecting the figure?

    def show(self):
        ###If I want to see this version again I don't want the cost of redrawing

class MyGraphic(tk.LabelFrame):
    def __init__(self, root, data, **options):
        #I use the labelframe only as a container to make things pretty
        tk.LabelFrame.__init__(self, root, text="My 1337 graphic : ", **options)

        self.data = data
        self.fig = mpl.figure.Figure()
        self.ax = self.fig.add_subplot(111)

        self._drawCanvas() #This is just for Tkinter compatibility

        self.my_versions = {}
        self.my_versions.update({'v1' : Version1(self.ax, self.data)})
        self.my_versions.update({'v2' : Version2(self.ax, self.data)})

    def _drawCanvas(self):
        self.canvas = FigureCanvasTkAgg(self.figure, master=self)
        self.canvas.show()
        self.canvas.get_tk_widget().grid()
        self.canvas._tkcanvas.pack(side=tk.TOP, fill=tk.BOTH, expand=1)

    def _setOptions(self, **kwargs):
        #Here I can set options common to both versions of the graphic

    def showGraphic(self, graphic_version):
        for i, item in enumerate(self.my_versions):
            item.hide()
        if graphic_version == 1:
            self.my_versions['v1'].show()
        elif graphic_version == 2:
            self.my_versions['v2'].show()

        self._setOptions()

很抱歉这篇冗长的帖子,但我宁愿包含太多细节,并在解决后删除那些不必要的细节。

基本上,我希望能够根据用户的选择在同一图形上隐藏和显示不同的斧头。谜题中缺少的部分是 myGraphic.show() 和 myGraphic.hide()。

我也是一个完整的 matplotlib 新手,我尝试了这种设计,因为在需要时实现其他版本似乎很清晰且容易,但设计输入也非常受欢迎。

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2 回答 2

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您可以使用 figure.delaxes 从图中删除轴(并使用 add_axes 添加): http ://matplotlib.org/api/figure_api.html#matplotlib.figure.Figure.delaxes

于 2013-08-21T15:33:55.003 回答
0

我设法解决了它,figure.clear()明天figure.add_axes(ax) 我将尝试编辑一个干净的问题答案,当我有时间用一个最小的例子来说明如何在 Tkinter 中的同一图形上切换不同版本的绘图时。

于 2013-08-21T21:23:21.287 回答