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Fix bug with PGF hatch linewidth and color #32254

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Merged
tacaswell merged 1 commit into from
Sep 3, 2026
+14 −1
Merged

Fix bug with PGF hatch linewidth and color #32254

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2 changes: 1 addition & 1 deletion lib/matplotlib/backend_bases.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1054,7 +1054,7 @@ def get_hatch_color(self):

def set_hatch_color(self, hatch_color):
"""Set the hatch color."""
self._hatch_color = hatch_color
self._hatch_color = colors.to_rgba(hatch_color)

def get_hatch_linewidth(self):
"""Get the hatch linewidth."""
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11 changes: 11 additions & 0 deletions lib/matplotlib/backends/backend_pgf.py
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Expand Up @@ -463,6 +463,17 @@ def draw_path(self, gc, path, transform, rgbFace=None):
r"\pgfsys@defobject{currentpattern}"
r"{\pgfqpoint{0in}{0in}}{\pgfqpoint{1in}{1in}}{")
_writeln(self.fh, r"\begin{pgfscope}")

# hatch linewidth and color
lw = gc.get_hatch_linewidth() * mpl_pt_to_in * latex_in_to_pt
hatch_rgba = gc.get_hatch_color()
_writeln(self.fh, r"\pgfsetlinewidth{%fpt}" % lw)
_writeln(self.fh,
r"\definecolor{currenthatch}{rgb}{%f,%f,%f}"
% hatch_rgba[:3])
_writeln(self.fh, r"\pgfsetstrokecolor{currenthatch}")
_writeln(self.fh, r"\pgfsetstrokeopacity{%f}" % hatch_rgba[3])

_writeln(self.fh,
r"\pgfpathrectangle"
r"{\pgfqpoint{0in}{0in}}{\pgfqpoint{1in}{1in}}")
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Binary file modified lib/matplotlib/tests/baseline_images/test_backend_pgf/pgf_rcupdate2.pdf
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2 changes: 2 additions & 0 deletions lib/matplotlib/tests/test_backend_pgf.py
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Expand Up @@ -148,6 +148,8 @@ def test_rcupdate():
{'font.family': 'monospace',
'font.size': 10,
'figure.subplot.left': .1,
'hatch.color': 'orange',
'hatch.linewidth': 2,
'lines.markersize': 20,
'pgf.rcfonts': False,
'pgf.texsystem': 'pdflatex',
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