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Fix tick marker mirroring (matplotlib conversion) #5310

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Fix tick marker mirroring (matplotlib conversion) #5310

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c65428b
Fix tick marker mirroring
robertoffmoura Aug 7, 2025
60cd4f7
Run ruff format
robertoffmoura Aug 12, 2025
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Run ruff format
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@robertoffmoura
robertoffmoura committed Oct 9, 2025
commit 60cd4f7caf049496e701f0dd8501d39f7353a20f
21 changes: 11 additions & 10 deletions plotly/matplotlylib/tests/test_renderer.py
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Expand Up @@ -86,16 +86,17 @@ def test_multiple_traces_native_legend():
assert plotly_fig.data[2].mode == "lines+markers"



def test_axis_mirror_with_spines_and_ticks():
"""Test that mirror=True when both spines and ticks are visible on both sides."""
fig, ax = plt.subplots()
ax.plot([0, 1], [0, 1])

# Show all spines
ax.spines['top'].set_visible(True)
ax.spines['bottom'].set_visible(True)
ax.spines['left'].set_visible(True)
ax.spines['right'].set_visible(True)
ax.spines["top"].set_visible(True)
ax.spines["bottom"].set_visible(True)
ax.spines["left"].set_visible(True)
ax.spines["right"].set_visible(True)

# Show ticks on all sides
ax.tick_params(top=True, bottom=True, left=True, right=True)
Expand All @@ -112,8 +113,8 @@ def test_axis_mirror_with_ticks_only():
ax.plot([0, 1], [0, 1])

# Hide opposite spines
ax.spines['top'].set_visible(False)
ax.spines['right'].set_visible(False)
ax.spines["top"].set_visible(False)
ax.spines["right"].set_visible(False)

# Show ticks on all sides
ax.tick_params(top=True, bottom=True, left=True, right=True)
Expand Down Expand Up @@ -145,13 +146,13 @@ def test_axis_mirror_mixed_configurations():
ax.plot([0, 1], [0, 1])

# X-axis: spines and ticks on both sides (mirror="ticks")
ax.spines['top'].set_visible(True)
ax.spines['bottom'].set_visible(True)
ax.spines["top"].set_visible(True)
ax.spines["bottom"].set_visible(True)
ax.tick_params(top=True, bottom=True)

# Y-axis: spine only on one side (mirror=False)
ax.spines['right'].set_visible(False)
ax.spines['left'].set_visible(True)
ax.spines["right"].set_visible(False)
ax.spines["left"].set_visible(True)
ax.tick_params(left=True, right=True)

plotly_fig = tls.mpl_to_plotly(fig)
Expand Down