Closed
Description
Bug summary
When doing contourf in 3D with given levels and extend = 'both', matplotlib will raise error 'PathCollection' object has no attribute 'do_3d_projection'.
Code for reproduction
from mpl_toolkits.mplot3d import axes3d
import matplotlib.pyplot as plt
from matplotlib import cm
import numpy as np
ax = plt.figure().add_subplot(projection='3d')
X, Y, Z = axes3d.get_test_data(0.1)
levels = np.arange(-70.0,70.0,1.0)
# Plot projections of the contours for each dimension. By choosing offsets
# that match the appropriate axes limits, the projected contours will sit on
# the 'walls' of the graph
cset = ax.contourf(X, Y, Z, zdir='z', offset=-100, levels = levels, extend='both', cmap=cm.coolwarm)
ax.set_xlim(-40, 40)
ax.set_ylim(-40, 40)
ax.set_zlim(-100, 100)
ax.set_xlabel('X')
ax.set_ylabel('Y')
ax.set_zlabel('Z')
plt.show()Actual outcome
---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
/usr/lib/python3.9/site-packages/IPython/core/formatters.py in __call__(self, obj)
339 pass
340 else:
--> 341 return printer(obj)
342 # Finally look for special method names
343 method = get_real_method(obj, self.print_method)
/usr/lib/python3.9/site-packages/IPython/core/pylabtools.py in <lambda>(fig)
248
249 if 'png' in formats:
--> 250 png_formatter.for_type(Figure, lambda fig: print_figure(fig, 'png', **kwargs))
251 if 'retina' in formats or 'png2x' in formats:
252 png_formatter.for_type(Figure, lambda fig: retina_figure(fig, **kwargs))
/usr/lib/python3.9/site-packages/IPython/core/pylabtools.py in print_figure(fig, fmt, bbox_inches, **kwargs)
132 FigureCanvasBase(fig)
133
--> 134 fig.canvas.print_figure(bytes_io, **kw)
135 data = bytes_io.getvalue()
136 if fmt == 'svg':
/usr/lib/python3.9/site-packages/matplotlib/backend_bases.py in print_figure(self, filename, dpi, facecolor, edgecolor, orientation, format, bbox_inches, pad_inches, bbox_extra_artists, backend, **kwargs)
2228 else suppress())
2229 with ctx:
-> 2230 self.figure.draw(renderer)
2231
2232 if bbox_inches:
/usr/lib/python3.9/site-packages/matplotlib/artist.py in draw_wrapper(artist, renderer, *args, **kwargs)
72 @wraps(draw)
73 def draw_wrapper(artist, renderer, *args, **kwargs):
---> 74 result = draw(artist, renderer, *args, **kwargs)
75 if renderer._rasterizing:
76 renderer.stop_rasterizing()
/usr/lib/python3.9/site-packages/matplotlib/artist.py in draw_wrapper(artist, renderer, *args, **kwargs)
49 renderer.start_filter()
50
---> 51 return draw(artist, renderer, *args, **kwargs)
52 finally:
53 if artist.get_agg_filter() is not None:
/usr/lib/python3.9/site-packages/matplotlib/figure.py in draw(self, renderer)
2778
2779 self.patch.draw(renderer)
-> 2780 mimage._draw_list_compositing_images(
2781 renderer, self, artists, self.suppressComposite)
2782
/usr/lib/python3.9/site-packages/matplotlib/image.py 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
/usr/lib/python3.9/site-packages/matplotlib/artist.py in draw_wrapper(artist, renderer, *args, **kwargs)
49 renderer.start_filter()
50
---> 51 return draw(artist, renderer, *args, **kwargs)
52 finally:
53 if artist.get_agg_filter() is not None:
/usr/lib/python3.9/site-packages/mpl_toolkits/mplot3d/axes3d.py in draw(self, renderer)
483 for axis in self._get_axis_list()) + 1
484 for i, col in enumerate(
--> 485 sorted(self.collections,
486 key=do_3d_projection,
487 reverse=True)):
/usr/lib/python3.9/site-packages/mpl_toolkits/mplot3d/axes3d.py in do_3d_projection(artist)
476 "do_3d_projection() was deprecated in Matplotlib "
477 "%(since)s and will be removed %(removal)s.")
--> 478 return artist.do_3d_projection(renderer)
479
480 # Calculate projection of collections and patches and zorder them.
AttributeError: 'PathCollection' object has no attribute 'do_3d_projection'
Expected outcome
Removing extend='both' the code works fine
Operating system
Arch
Matplotlib Version
3.4.2
Matplotlib Backend
module://matplotlib_inline.backend_inline
Python version
python 3.9.6
Jupyter version
3.1.6
Other libraries
No response
Installation
Linux package manager (Debian/Fedora/etc.)
Conda channel
No response