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Avoid inverting axes when tight_layout is cramped. #8203

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Avoid inverting axes when tight_layout is cramped. #8203

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15 changes: 11 additions & 4 deletions lib/matplotlib/tight_layout.py
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Original file line number Diff line number Diff line change
Expand Up @@ -11,11 +11,12 @@

import warnings

import numpy as np

import matplotlib
from matplotlib import rcParams
from matplotlib.transforms import TransformedBbox, Bbox

from matplotlib.font_manager import FontProperties
rcParams = matplotlib.rcParams


def _get_left(tight_bbox, axes_bbox):
Expand Down Expand Up @@ -193,13 +194,19 @@ def auto_adjust_subplotpars(fig, renderer,
for i in range(rows)
for s in hspaces[i * (cols + 1) + 1:(i + 1) * (cols + 1) - 1])
+ hpad_inches / fig_width_inch)
h_axes = (1 - margin_right - margin_left - hspace * (cols - 1)) / cols
# Make sure that `h_axes` (and, below, `v_axes`) stays positive, even
# when the axes are cramped.
h_axes = max(
(1 - margin_right - margin_left - hspace * (cols - 1)) / cols,
np.finfo(float).resolution)
kwargs["wspace"] = hspace / h_axes

if rows > 1:
vspace = (max(sum(s) for s in vspaces[cols:-cols])
+ vpad_inches / fig_height_inch)
v_axes = (1 - margin_top - margin_bottom - vspace * (rows - 1)) / rows
v_axes = max(
(1 - margin_top - margin_bottom - vspace * (rows - 1)) / rows,
np.finfo(float).resolution)
kwargs["hspace"] = vspace / v_axes

return kwargs
Expand Down