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Description
Bug summary
I was following thissexample on drawing ellipses and wanted to get the vertices out. Calling Ellipse.get_vertices() returns the untransformed vertices which may be intended behaviour, but I also seem to be unable to produce the correct vertices under the transform and they seem to be off by a scale factor. Not entirely sure if it's a bug or something I don't understand.
The following code is a MWE trimmed down from the linked example
Code for reproduction
import matplotlib.pyplot as plt
from matplotlib.patches import Ellipse
import matplotlib.transforms as transforms
fig, ax = plt.subplots(figsize=(6, 6))
ellipse = Ellipse((0, 0), width=1.15*2, height=2*0.823)
transf = transforms.Affine2D() \
.rotate_deg(45) \
.scale(2.54, 1.94) \
.translate(3.64, 4.0)
ellipse.set_transform(transf + ax.transData)
ax.add_patch(ellipse)
vertices = ellipse.get_vertices()
transformed_vertices = ellipse.get_transform().transform(vertices)
data_verts = ax.transData.inverted().transform(transformed_vertices)
ax.plot([vertices[0][0],vertices[1][0]],[vertices[0][1],vertices[1][1]],c='green')
ax.plot([data_verts[0][0],data_verts[1][0]],[data_verts[0][1],data_verts[1][1]],c='red')
plt.savefig('ellipse_test.png')
plt.show()Actual outcome
Expected outcome
The red line to have endpoints associated with the vertices of the ellipse
Additional information
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Operating system
Ubuntu
Matplotlib Version
3.10.3
Matplotlib Backend
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Python version
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Jupyter version
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