Closed
Description
Bug summary
With some types and values of axes scaling, axline fails to draw a line.
Code for reproduction
This works
fig, ax = plt.subplots(figsize=(5, 5))
ax.set_yscale('asinh', linear_width=1e-9)
ax.axline([1, 0], [1, 1])but this errors
fig, ax = plt.subplots(figsize=(5, 5))
ax.set_yscale('asinh', linear_width=1e-10)
ax.axline([1, 0], [1, 1])The only difference is the value of linear_width
Actual outcome
---------------------------------------------------------------------------
ValueError Traceback (most recent call last)
File C:\ProgramData\Miniconda3\Lib\site-packages\matplotlib\pyplot.py:268, in _draw_all_if_interactive()
266 def _draw_all_if_interactive() -> None:
267 if matplotlib.is_interactive():
--> 268 draw_all()
File C:\ProgramData\Miniconda3\Lib\site-packages\matplotlib\_pylab_helpers.py:131, in Gcf.draw_all(cls, force)
129 for manager in cls.get_all_fig_managers():
130 if force or manager.canvas.figure.stale:
--> 131 manager.canvas.draw_idle()
File C:\ProgramData\Miniconda3\Lib\site-packages\matplotlib\backend_bases.py:1905, in FigureCanvasBase.draw_idle(self, *args, **kwargs)
1903 if not self._is_idle_drawing:
1904 with self._idle_draw_cntx():
-> 1905 self.draw(*args, **kwargs)
File C:\ProgramData\Miniconda3\Lib\site-packages\matplotlib\backends\backend_agg.py:387, in FigureCanvasAgg.draw(self)
384 # Acquire a lock on the shared font cache.
385 with (self.toolbar._wait_cursor_for_draw_cm() if self.toolbar
386 else nullcontext()):
--> 387 self.figure.draw(self.renderer)
388 # A GUI class may be need to update a window using this draw, so
389 # don't forget to call the superclass.
390 super().draw()
File C:\ProgramData\Miniconda3\Lib\site-packages\matplotlib\artist.py:95, in _finalize_rasterization.<locals>.draw_wrapper(artist, renderer, *args, **kwargs)
93 @wraps(draw)
94 def draw_wrapper(artist, renderer, *args, **kwargs):
---> 95 result = draw(artist, renderer, *args, **kwargs)
96 if renderer._rasterizing:
97 renderer.stop_rasterizing()
File C:\ProgramData\Miniconda3\Lib\site-packages\matplotlib\artist.py:72, in allow_rasterization.<locals>.draw_wrapper(artist, renderer)
69 if artist.get_agg_filter() is not None:
70 renderer.start_filter()
---> 72 return draw(artist, renderer)
73 finally:
74 if artist.get_agg_filter() is not None:
File C:\ProgramData\Miniconda3\Lib\site-packages\matplotlib\figure.py:3162, in Figure.draw(self, renderer)
3159 # ValueError can occur when resizing a window.
3161 self.patch.draw(renderer)
-> 3162 mimage._draw_list_compositing_images(
3163 renderer, self, artists, self.suppressComposite)
3165 renderer.close_group('figure')
3166 finally:
File C:\ProgramData\Miniconda3\Lib\site-packages\matplotlib\image.py:132, in _draw_list_compositing_images(renderer, parent, artists, suppress_composite)
130 if not_composite or not has_images:
131 for a in artists:
--> 132 a.draw(renderer)
133 else:
134 # Composite any adjacent images together
135 image_group = []
File C:\ProgramData\Miniconda3\Lib\site-packages\matplotlib\artist.py:72, in allow_rasterization.<locals>.draw_wrapper(artist, renderer)
69 if artist.get_agg_filter() is not None:
70 renderer.start_filter()
---> 72 return draw(artist, renderer)
73 finally:
74 if artist.get_agg_filter() is not None:
File C:\ProgramData\Miniconda3\Lib\site-packages\matplotlib\axes\_base.py:3137, in _AxesBase.draw(self, renderer)
3134 if artists_rasterized:
3135 _draw_rasterized(self.figure, artists_rasterized, renderer)
-> 3137 mimage._draw_list_compositing_images(
3138 renderer, self, artists, self.figure.suppressComposite)
3140 renderer.close_group('axes')
3141 self.stale = False
File C:\ProgramData\Miniconda3\Lib\site-packages\matplotlib\image.py:132, in _draw_list_compositing_images(renderer, parent, artists, suppress_composite)
130 if not_composite or not has_images:
131 for a in artists:
--> 132 a.draw(renderer)
133 else:
134 # Composite any adjacent images together
135 image_group = []
File C:\ProgramData\Miniconda3\Lib\site-packages\matplotlib\artist.py:39, in _prevent_rasterization.<locals>.draw_wrapper(artist, renderer, *args, **kwargs)
36 renderer.stop_rasterizing()
37 renderer._rasterizing = False
---> 39 return draw(artist, renderer, *args, **kwargs)
File C:\ProgramData\Miniconda3\Lib\site-packages\matplotlib\lines.py:1541, in AxLine.draw(self, renderer)
1539 def draw(self, renderer):
1540 self._transformed_path = None # Force regen.
-> 1541 super().draw(renderer)
File C:\ProgramData\Miniconda3\Lib\site-packages\matplotlib\artist.py:72, in allow_rasterization.<locals>.draw_wrapper(artist, renderer)
69 if artist.get_agg_filter() is not None:
70 renderer.start_filter()
---> 72 return draw(artist, renderer)
73 finally:
74 if artist.get_agg_filter() is not None:
File C:\ProgramData\Miniconda3\Lib\site-packages\matplotlib\lines.py:769, in Line2D.draw(self, renderer)
767 renderer.open_group('line2d', self.get_gid())
768 if self._lineStyles[self._linestyle] != '_draw_nothing':
--> 769 tpath, affine = (self._get_transformed_path()
770 .get_transformed_path_and_affine())
771 if len(tpath.vertices):
772 gc = renderer.new_gc()
File C:\ProgramData\Miniconda3\Lib\site-packages\matplotlib\lines.py:734, in Line2D._get_transformed_path(self)
732 """Return this line's `~matplotlib.transforms.TransformedPath`."""
733 if self._transformed_path is None:
--> 734 self._transform_path()
735 return self._transformed_path
File C:\ProgramData\Miniconda3\Lib\site-packages\matplotlib\lines.py:729, in Line2D._transform_path(self, subslice)
727 else:
728 _path = self._path
--> 729 self._transformed_path = TransformedPath(_path, self.get_transform())
File C:\ProgramData\Miniconda3\Lib\site-packages\matplotlib\lines.py:1510, in AxLine.get_transform(self)
1508 if np.allclose(x1, x2):
1509 if np.allclose(y1, y2):
-> 1510 raise ValueError(
1511 f"Cannot draw a line through two identical points "
1512 f"(x={(x1, x2)}, y={(y1, y2)})")
1513 slope = np.inf
1514 else:
ValueError: Cannot draw a line through two identical points (x=(1.0, 1.0), y=(0.0, 2.3718998110500403e-09))
---------------------------------------------------------------------------
ValueError Traceback (most recent call last)
File C:\ProgramData\Miniconda3\Lib\site-packages\IPython\core\formatters.py:343, in BaseFormatter.__call__(self, obj)
341 pass
342 else:
--> 343 return printer(obj)
344 # Finally look for special method names
345 method = get_real_method(obj, self.print_method)
File C:\ProgramData\Miniconda3\Lib\site-packages\IPython\core\pylabtools.py:170, in print_figure(fig, fmt, bbox_inches, base64, **kwargs)
167 from matplotlib.backend_bases import FigureCanvasBase
168 FigureCanvasBase(fig)
--> 170 fig.canvas.print_figure(bytes_io, **kw)
171 data = bytes_io.getvalue()
172 if fmt == 'svg':
File C:\ProgramData\Miniconda3\Lib\site-packages\matplotlib\backend_bases.py:2175, in FigureCanvasBase.print_figure(self, filename, dpi, facecolor, edgecolor, orientation, format, bbox_inches, pad_inches, bbox_extra_artists, backend, **kwargs)
2172 # we do this instead of `self.figure.draw_without_rendering`
2173 # so that we can inject the orientation
2174 with getattr(renderer, "_draw_disabled", nullcontext)():
-> 2175 self.figure.draw(renderer)
2176 if bbox_inches:
2177 if bbox_inches == "tight":
File C:\ProgramData\Miniconda3\Lib\site-packages\matplotlib\artist.py:95, in _finalize_rasterization.<locals>.draw_wrapper(artist, renderer, *args, **kwargs)
93 @wraps(draw)
94 def draw_wrapper(artist, renderer, *args, **kwargs):
---> 95 result = draw(artist, renderer, *args, **kwargs)
96 if renderer._rasterizing:
97 renderer.stop_rasterizing()
File C:\ProgramData\Miniconda3\Lib\site-packages\matplotlib\artist.py:72, in allow_rasterization.<locals>.draw_wrapper(artist, renderer)
69 if artist.get_agg_filter() is not None:
70 renderer.start_filter()
---> 72 return draw(artist, renderer)
73 finally:
74 if artist.get_agg_filter() is not None:
File C:\ProgramData\Miniconda3\Lib\site-packages\matplotlib\figure.py:3162, in Figure.draw(self, renderer)
3159 # ValueError can occur when resizing a window.
3161 self.patch.draw(renderer)
-> 3162 mimage._draw_list_compositing_images(
3163 renderer, self, artists, self.suppressComposite)
3165 renderer.close_group('figure')
3166 finally:
File C:\ProgramData\Miniconda3\Lib\site-packages\matplotlib\image.py:132, in _draw_list_compositing_images(renderer, parent, artists, suppress_composite)
130 if not_composite or not has_images:
131 for a in artists:
--> 132 a.draw(renderer)
133 else:
134 # Composite any adjacent images together
135 image_group = []
File C:\ProgramData\Miniconda3\Lib\site-packages\matplotlib\artist.py:72, in allow_rasterization.<locals>.draw_wrapper(artist, renderer)
69 if artist.get_agg_filter() is not None:
70 renderer.start_filter()
---> 72 return draw(artist, renderer)
73 finally:
74 if artist.get_agg_filter() is not None:
File C:\ProgramData\Miniconda3\Lib\site-packages\matplotlib\axes\_base.py:3137, in _AxesBase.draw(self, renderer)
3134 if artists_rasterized:
3135 _draw_rasterized(self.figure, artists_rasterized, renderer)
-> 3137 mimage._draw_list_compositing_images(
3138 renderer, self, artists, self.figure.suppressComposite)
3140 renderer.close_group('axes')
3141 self.stale = False
File C:\ProgramData\Miniconda3\Lib\site-packages\matplotlib\image.py:132, in _draw_list_compositing_images(renderer, parent, artists, suppress_composite)
130 if not_composite or not has_images:
131 for a in artists:
--> 132 a.draw(renderer)
133 else:
134 # Composite any adjacent images together
135 image_group = []
File C:\ProgramData\Miniconda3\Lib\site-packages\matplotlib\artist.py:39, in _prevent_rasterization.<locals>.draw_wrapper(artist, renderer, *args, **kwargs)
36 renderer.stop_rasterizing()
37 renderer._rasterizing = False
---> 39 return draw(artist, renderer, *args, **kwargs)
File C:\ProgramData\Miniconda3\Lib\site-packages\matplotlib\lines.py:1541, in AxLine.draw(self, renderer)
1539 def draw(self, renderer):
1540 self._transformed_path = None # Force regen.
-> 1541 super().draw(renderer)
File C:\ProgramData\Miniconda3\Lib\site-packages\matplotlib\artist.py:72, in allow_rasterization.<locals>.draw_wrapper(artist, renderer)
69 if artist.get_agg_filter() is not None:
70 renderer.start_filter()
---> 72 return draw(artist, renderer)
73 finally:
74 if artist.get_agg_filter() is not None:
File C:\ProgramData\Miniconda3\Lib\site-packages\matplotlib\lines.py:769, in Line2D.draw(self, renderer)
767 renderer.open_group('line2d', self.get_gid())
768 if self._lineStyles[self._linestyle] != '_draw_nothing':
--> 769 tpath, affine = (self._get_transformed_path()
770 .get_transformed_path_and_affine())
771 if len(tpath.vertices):
772 gc = renderer.new_gc()
File C:\ProgramData\Miniconda3\Lib\site-packages\matplotlib\lines.py:734, in Line2D._get_transformed_path(self)
732 """Return this line's `~matplotlib.transforms.TransformedPath`."""
733 if self._transformed_path is None:
--> 734 self._transform_path()
735 return self._transformed_path
File C:\ProgramData\Miniconda3\Lib\site-packages\matplotlib\lines.py:729, in Line2D._transform_path(self, subslice)
727 else:
728 _path = self._path
--> 729 self._transformed_path = TransformedPath(_path, self.get_transform())
File C:\ProgramData\Miniconda3\Lib\site-packages\matplotlib\lines.py:1510, in AxLine.get_transform(self)
1508 if np.allclose(x1, x2):
1509 if np.allclose(y1, y2):
-> 1510 raise ValueError(
1511 f"Cannot draw a line through two identical points "
1512 f"(x={(x1, x2)}, y={(y1, y2)})")
1513 slope = np.inf
1514 else:
ValueError: Cannot draw a line through two identical points (x=(1.0, 1.0), y=(0.0, 2.3718998110500403e-09))
Expected outcome
Should generate plot without error
Additional information
No response
Operating system
No response
Matplotlib Version
3.9.2
Matplotlib Backend
No response
Python version
No response
Jupyter version
No response
Installation
None