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Hide fully transparent latex text in PS output #21470

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Merged
merged 1 commit into from
Oct 27, 2021
Merged

Hide fully transparent latex text in PS output #21470

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3 changes: 3 additions & 0 deletions lib/matplotlib/backends/backend_ps.py
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Original file line number Diff line number Diff line change
Expand Up @@ -593,6 +593,9 @@ def draw_path_collection(self, gc, master_transform, paths, all_transforms,
@_log_if_debug_on
def draw_tex(self, gc, x, y, s, prop, angle, *, mtext=None):
# docstring inherited
if self._is_transparent(gc.get_rgb()):
return # Special handling for fully transparent.

if not hasattr(self, "psfrag"):
self._logwarn_once(
"The PS backend determines usetex status solely based on "
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10 changes: 10 additions & 0 deletions lib/matplotlib/tests/test_backend_ps.py
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Expand Up @@ -118,6 +118,16 @@ def test_transparency():
ax.text(.5, .5, "foo", color="r", alpha=0)


@needs_usetex
@image_comparison(["empty.eps"])
def test_transparency_tex():
mpl.rcParams['text.usetex'] = True
fig, ax = plt.subplots()
ax.set_axis_off()
ax.plot([0, 1], color="r", alpha=0)
ax.text(.5, .5, "foo", color="r", alpha=0)


def test_bbox():
fig, ax = plt.subplots()
with io.BytesIO() as buf:
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