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Merge pull request #2415 from kshramt/kshramt/fix_fill_opacity
Bug: alpha parameter was ignored when fill color is #000000
2 parents 9804c5d + 78ae9d7 commit 6a5aa01

3 files changed

Lines changed: 298 additions & 2 deletions

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‎lib/matplotlib/backends/backend_svg.py‎

Lines changed: 3 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -406,8 +406,9 @@ def _get_style_dict(self, gc, rgbFace):
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else:
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if rgbFace is None:
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attrib['fill'] = 'none'
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elif tuple(rgbFace[:3]) != (0, 0, 0):
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attrib['fill'] = rgb2hex(rgbFace)
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else:
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if tuple(rgbFace[:3]) != (0, 0, 0):
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attrib['fill'] = rgb2hex(rgbFace)
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if len(rgbFace) == 4 and rgbFace[3] != 1.0 and not forced_alpha:
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attrib['fill-opacity'] = str(rgbFace[3])
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‎lib/matplotlib/tests/baseline_images/test_backend_svg/fill_black_with_alpha.svg‎

Lines changed: 287 additions & 0 deletions
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‎lib/matplotlib/tests/test_backend_svg.py‎

Lines changed: 8 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -36,6 +36,14 @@ def test_visibility():
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parser.Parse(buf) # this will raise ExpatError if the svg is invalid
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@image_comparison(baseline_images=['fill_black_with_alpha'], remove_text=True,
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extensions=['svg'])
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def test_fill_black_with_alpha():
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fig = plt.figure()
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ax = fig.add_subplot(1, 1, 1)
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ax.scatter(x=[0, 0.1, 1], y=[0, 0, 0], c='k', alpha=0.1, s=10000)
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@image_comparison(baseline_images=['noscale'], remove_text=True)
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def test_noscale():
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X, Y = np.meshgrid(np.arange(-5, 5, 1), np.arange(-5, 5, 1))

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