On Wed, Sep 21, 2022 at 3:52 AM Tiago de Paula Peixoto <tiago@skewed.de> wrote:

Hi,

I can't believe I have to explain this, but this is the mailing list for
graph-tool, not for igraph.

Please refer to the igraph mailing list for help.

Best,
Tiago

Am 21.09.22 um 12:21 schrieb Jos J:
> I have python 3.8.13, igraph 0.10.1, with matplotlib 3.6.0, and when
> running the sample scripts from the install page on the website, I am
> receiving an error. The scripts can be found here:
> https://igraph.org/python/tutorial/latest/install.html
> <https://igraph.org/python/tutorial/latest/install.html>
>
> I am referring to the following
>
> >>> import matplotlib.pyplot as plt
> >>> import igraph as ig
> >>> fig, ax = plt.subplots()
> >>> g = ig.Graph.Famous("petersen")
> >>> ig.plot(g, target=ax)
> >>> plt.show()
>
> I receive the following errors at the ig.plot(g, target=ax) line:
>
> ---------------------------------------------------------------------------
> AttributeError Traceback (most recent call last)
> Cell In [120], line 6
> 4 fig, ax = plt.subplots()
> 5 g = ig.Graph.Famous("petersen")
> ----> 6 ig.plot(g, target=ax)
> 8 plt.show()
>
> File
> ~/anaconda3/envs/rapids-2208/lib/python3.8/site-packages/igraph/drawing/__init__.py:245, in plot(obj, target, bbox, *args, **kwds)
> 243 return
> 244 else:
> --> 245 plotter(
> 246 backend,
> 247 target,
> 248 palette=palette,
> 249 *args,
> 250 **kwds,
> 251 )
> 252 return target
> 254 # Cairo backend
>
> File
> ~/anaconda3/envs/rapids-2208/lib/python3.8/site-packages/igraph/drawing/graph.py:558, in __plot__(self, backend, context, *args, **kwds)
> 552 from igraph.drawing import DrawerDirectory
> 554 drawer = kwds.pop(
> 555 "drawer_factory",
> 556 DrawerDirectory.resolve(self, backend)(context),
> 557 )
> --> 558 drawer.draw(self, *args, **kwds)
>
> File
> ~/anaconda3/envs/rapids-2208/lib/python3.8/site-packages/igraph/drawing/matplotlib/graph.py:233, in MatplotlibGraphDrawer.draw(self, graph, *args, **kwds)
> 231 drawer_method = vertex_drawer.draw
> 232 for vertex, visual_vertex, coords in vertex_coord_iter:
> --> 233 drawer_method(visual_vertex, vertex, coords)
> 235 # Construct the iterator that we will use to draw the vertex labels
> 236 vs = graph.vs
>
> File
> ~/anaconda3/envs/rapids-2208/lib/python3.8/site-packages/igraph/drawing/matplotlib/vertex.py:60, in MatplotlibVertexDrawer.draw(self, visual_vertex, vertex, coords)
> 49 width = (
> 50 visual_vertex.width
> 51 if visual_vertex.width is not None
> 52 else visual_vertex.size
> 53 )
> 54 height = (
> 55 visual_vertex.height
> 56 if visual_vertex.height is not None
> 57 else visual_vertex.size
> 58 )
> ---> 60 stroke = visual_vertex.shape.draw_path(
> 61 ax,
> 62 coords[0],
> 63 coords[1],
> 64 width,
> 65 height,
> 66 facecolor=visual_vertex.color,
> 67 edgecolor=visual_vertex.frame_color,
> 68 linewidth=visual_vertex.frame_width,
> 69 zorder=visual_vertex.zorder,
> 70 )
> 71 ax.add_patch(stroke)
>
> File
> ~/anaconda3/envs/rapids-2208/lib/python3.8/site-packages/igraph/drawing/shapes.py:168, in CircleDrawer.draw_path(ctx, center_x, center_y, width, height, **kwargs)
> 166 return mpl.patches.Circle((center_x, center_y), width / 2,
> **kwargs)
> 167 else:
> --> 168 ctx.arc(center_x, center_y, width / 2, 0, 2 * pi)
>
> AttributeError: 'AxesSubplot' object has no attribute 'arc'
>
>
> ---------------------------------------------
>
> Not sure if its my python or package versions, or if its a configuration
> issue, or possibly an issue with igraph or matplotlib. Any advice would
> be most welcome
>
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--
Tiago de Paula Peixoto <tiago@skewed.de>

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