René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"[Bug]: Zoom not working matplotlib.backends.backend_wxagg.NavigationToolbar2WxAgg","articleBody":"### Bug summary\n\nWhen running  the \"Embedding in wx #2\", code from the matplotlib documentation (https://matplotlib.org/stable/gallery/user_interfaces/embedding_in_wx2_sgskip.html), the zoom function in the toolbar does not make a square and throws error:\r\n\r\nFile \"/usr/lib/python3/dist-packages/wx/core.py\", line 1098, in _DC_DrawLineList\r\n    return self._DrawLineList(lines, pens, [])\r\nTypeError: 'numpy.float64' object cannot be interpreted as an integer\n\n### Code for reproduction\n\n```python\nimport wx\r\nimport wx.lib.mixins.inspection as WIT\r\n\r\nimport numpy as np\r\n\r\nfrom matplotlib.backends.backend_wxagg import FigureCanvasWxAgg as FigureCanvas\r\nfrom matplotlib.backends.backend_wxagg import \\\r\n    NavigationToolbar2WxAgg as NavigationToolbar\r\nfrom matplotlib.figure import Figure\r\n\r\n\r\nclass CanvasFrame(wx.Frame):\r\n    def __init__(self):\r\n        super().__init__(None, -1, 'CanvasFrame', size=(550, 350))\r\n\r\n        self.figure = Figure()\r\n        self.axes = self.figure.add_subplot()\r\n        t = np.arange(0.0, 3.0, 0.01)\r\n        s = np.sin(2 * np.pi * t)\r\n\r\n        self.axes.plot(t, s)\r\n        self.canvas = FigureCanvas(self, -1, self.figure)\r\n\r\n        self.sizer = wx.BoxSizer(wx.VERTICAL)\r\n        self.sizer.Add(self.canvas, 1, wx.LEFT | wx.TOP | wx.EXPAND)\r\n        self.SetSizer(self.sizer)\r\n        self.Fit()\r\n\r\n        self.add_toolbar()  # comment this out for no toolbar\r\n\r\n    def add_toolbar(self):\r\n        self.toolbar = NavigationToolbar(self.canvas)\r\n        self.toolbar.Realize()\r\n        # By adding toolbar in sizer, we are able to put it at the bottom\r\n        # of the frame - so appearance is closer to GTK version.\r\n        self.sizer.Add(self.toolbar, 0, wx.LEFT | wx.EXPAND)\r\n        # update the axes menu on the toolbar\r\n        self.toolbar.update()\r\n\r\n\r\n# Alternatively you could use:\r\n# class App(wx.App):\r\nclass App(WIT.InspectableApp):\r\n    def OnInit(self):\r\n        \"\"\"Create the main window and insert the custom frame.\"\"\"\r\n        self.Init()\r\n        frame = CanvasFrame()\r\n        frame.Show(True)\r\n\r\n        return True\r\n\r\n\r\nif __name__ == \"__main__\":\r\n    app = App()\r\n    app.MainLoop()\n```\n\n\n### Actual outcome\n\nTraceback (most recent call last):\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/backends/backend_wx.py\", line 655, in _onPaint\r\n    self.gui_repaint(drawDC=drawDC)\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/_api/deprecation.py\", line 386, in wrapper\r\n    return func(*inner_args, **inner_kwargs)\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/backends/backend_wx.py\", line 622, in gui_repaint\r\n    drawDC.DrawLineList(\r\n  File \"/usr/lib/python3/dist-packages/wx/core.py\", line 1098, in _DC_DrawLineList\r\n    return self._DrawLineList(lines, pens, [])\r\nTypeError: 'numpy.float64' object cannot be interpreted as an integer\r\nTraceback (most recent call last):\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/backends/backend_wx.py\", line 655, in _onPaint\r\n    self.gui_repaint(drawDC=drawDC)\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/_api/deprecation.py\", line 386, in wrapper\r\n    return func(*inner_args, **inner_kwargs)\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/backends/backend_wx.py\", line 622, in gui_repaint\r\n    drawDC.DrawLineList(\r\n  File \"/usr/lib/python3/dist-packages/wx/core.py\", line 1098, in _DC_DrawLineList\r\n    return self._DrawLineList(lines, pens, [])\r\nTypeError: 'numpy.float64' object cannot be interpreted as an integer\r\nTraceback (most recent call last):\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/backends/backend_wx.py\", line 655, in _onPaint\r\n    self.gui_repaint(drawDC=drawDC)\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/_api/deprecation.py\", line 386, in wrapper\r\n    return func(*inner_args, **inner_kwargs)\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/backends/backend_wx.py\", line 622, in gui_repaint\r\n    drawDC.DrawLineList(\r\n  File \"/usr/lib/python3/dist-packages/wx/core.py\", line 1098, in _DC_DrawLineList\r\n    return self._DrawLineList(lines, pens, [])\r\nTypeError: 'numpy.float64' object cannot be interpreted as an integer\r\nTraceback (most recent call last):\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/backends/backend_wx.py\", line 655, in _onPaint\r\n    self.gui_repaint(drawDC=drawDC)\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/_api/deprecation.py\", line 386, in wrapper\r\n    return func(*inner_args, **inner_kwargs)\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/backends/backend_wx.py\", line 622, in gui_repaint\r\n    drawDC.DrawLineList(\r\n  File \"/usr/lib/python3/dist-packages/wx/core.py\", line 1098, in _DC_DrawLineList\r\n    return self._DrawLineList(lines, pens, [])\r\nTypeError: 'numpy.float64' object cannot be interpreted as an integer\r\nTraceback (most recent call last):\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/backends/backend_wx.py\", line 655, in _onPaint\r\n    self.gui_repaint(drawDC=drawDC)\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/_api/deprecation.py\", line 386, in wrapper\r\n    return func(*inner_args, **inner_kwargs)\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/backends/backend_wx.py\", line 622, in gui_repaint\r\n    drawDC.DrawLineList(\r\n  File \"/usr/lib/python3/dist-packages/wx/core.py\", line 1098, in _DC_DrawLineList\r\n    return self._DrawLineList(lines, pens, [])\r\nTypeError: 'numpy.float64' object cannot be interpreted as an integer\r\nTraceback (most recent call last):\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/backends/backend_wx.py\", line 655, in _onPaint\r\n    self.gui_repaint(drawDC=drawDC)\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/_api/deprecation.py\", line 386, in wrapper\r\n    return func(*inner_args, **inner_kwargs)\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/backends/backend_wx.py\", line 622, in gui_repaint\r\n    drawDC.DrawLineList(\r\n  File \"/usr/lib/python3/dist-packages/wx/core.py\", line 1098, in _DC_DrawLineList\r\n    return self._DrawLineList(lines, pens, [])\r\nTypeError: 'numpy.float64' object cannot be interpreted as an integer\r\nTraceback (most recent call last):\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/backends/backend_wx.py\", line 655, in _onPaint\r\n    self.gui_repaint(drawDC=drawDC)\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/_api/deprecation.py\", line 386, in wrapper\r\n    return func(*inner_args, **inner_kwargs)\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/backends/backend_wx.py\", line 622, in gui_repaint\r\n    drawDC.DrawLineList(\r\n  File \"/usr/lib/python3/dist-packages/wx/core.py\", line 1098, in _DC_DrawLineList\r\n    return self._DrawLineList(lines, pens, [])\r\nTypeError: 'numpy.float64' object cannot be interpreted as an integer\r\nTraceback (most recent call last):\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/backends/backend_wx.py\", line 655, in _onPaint\r\n    self.gui_repaint(drawDC=drawDC)\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/_api/deprecation.py\", line 386, in wrapper\r\n    return func(*inner_args, **inner_kwargs)\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/backends/backend_wx.py\", line 622, in gui_repaint\r\n    drawDC.DrawLineList(\r\n  File \"/usr/lib/python3/dist-packages/wx/core.py\", line 1098, in _DC_DrawLineList\r\n    return self._DrawLineList(lines, pens, [])\r\nTypeError: 'numpy.float64' object cannot be interpreted as an integer\r\nTraceback (most recent call last):\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/backends/backend_wx.py\", line 655, in _onPaint\r\n    self.gui_repaint(drawDC=drawDC)\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/_api/deprecation.py\", line 386, in wrapper\r\n    return func(*inner_args, **inner_kwargs)\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/backends/backend_wx.py\", line 622, in gui_repaint\r\n    drawDC.DrawLineList(\r\n  File \"/usr/lib/python3/dist-packages/wx/core.py\", line 1098, in _DC_DrawLineList\r\n    return self._DrawLineList(lines, pens, [])\r\nTypeError: 'numpy.float64' object cannot be interpreted as an integer\r\nTraceback (most recent call last):\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/backends/backend_wx.py\", line 655, in _onPaint\r\n    self.gui_repaint(drawDC=drawDC)\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/_api/deprecation.py\", line 386, in wrapper\r\n    return func(*inner_args, **inner_kwargs)\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/backends/backend_wx.py\", line 622, in gui_repaint\r\n    drawDC.DrawLineList(\r\n  File \"/usr/lib/python3/dist-packages/wx/core.py\", line 1098, in _DC_DrawLineList\r\n    return self._DrawLineList(lines, pens, [])\r\nTypeError: 'numpy.float64' object cannot be interpreted as an integer\r\nTraceback (most recent call last):\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/backends/backend_wx.py\", line 655, in _onPaint\r\n    self.gui_repaint(drawDC=drawDC)\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/_api/deprecation.py\", line 386, in wrapper\r\n    return func(*inner_args, **inner_kwargs)\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/backends/backend_wx.py\", line 622, in gui_repaint\r\n    drawDC.DrawLineList(\r\n  File \"/usr/lib/python3/dist-packages/wx/core.py\", line 1098, in _DC_DrawLineList\r\n    return self._DrawLineList(lines, pens, [])\r\nTypeError: 'numpy.float64' object cannot be interpreted as an integer\r\nTraceback (most recent call last):\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/backends/backend_wx.py\", line 655, in _onPaint\r\n    self.gui_repaint(drawDC=drawDC)\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/_api/deprecation.py\", line 386, in wrapper\r\n    return func(*inner_args, **inner_kwargs)\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/backends/backend_wx.py\", line 622, in gui_repaint\r\n    drawDC.DrawLineList(\r\n  File \"/usr/lib/python3/dist-packages/wx/core.py\", line 1098, in _DC_DrawLineList\r\n    return self._DrawLineList(lines, pens, [])\r\nTypeError: 'numpy.float64' object cannot be interpreted as an integer\r\nTraceback (most recent call last):\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/backends/backend_wx.py\", line 655, in _onPaint\r\n    self.gui_repaint(drawDC=drawDC)\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/_api/deprecation.py\", line 386, in wrapper\r\n    return func(*inner_args, **inner_kwargs)\r\n  File \"/usr/lib/python3/dist-packages/matplotlib/backends/backend_wx.py\", line 622, in gui_repaint\r\n    drawDC.DrawLineList(\r\n  File \"/usr/lib/python3/dist-packages/wx/core.py\", line 1098, in _DC_DrawLineList\r\n    return self._DrawLineList(lines, pens, [])\r\nTypeError: 'numpy.float64' object cannot be interpreted as an integer\n\n### Expected outcome\n\nExpected zoom to work as a normal matplotlib plot.\n\n### Additional information\n\nI assume the code worked in a earlier version since the script was taken directly from the matplotlib documentation.\r\n\r\nI installed wxPython using synaptic: \r\n\r\npython3-wxgtk4.0 v\r\n\r\nversion: python3-wxgtk4.0\n\n### Operating system\n\n Ubuntu 22.04.3 LTS, release 22.04\n\n### Matplotlib Version\n\n3.5.1\n\n### Matplotlib Backend\n\nTkAgg\n\n### Python version\n\nPython 3.10.12\n\n### Jupyter version\n\n4.0.5\n\n### Installation\n\npip","author":{"url":"https://github.com/EirikJaccheri","@type":"Person","name":"EirikJaccheri"},"datePublished":"2023-09-21T13:22:31.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/26857/matplotlib/issues/26857"}