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Added some oblique 45º lines tests

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Only the oblique 3 pixels wide lines are defined:
* The oblique 2 pixels wide lines are somewhat hard to define.
* To define the oblique lines wider than 3 pixels we neet to define
  first how the oblique lines should expand their width (realistic or
  exact).
This commit is contained in:
Terseus 2014-04-09 17:39:52 +02:00
parent 92dd58c014
commit 8228caf14d
3 changed files with 19 additions and 0 deletions
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Tests/images/imagedraw/line_oblique_45_w3px_a.png Normal file
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19
Tests/test_imagedraw.py
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@ -108,3 +108,22 @@ def test_line_vertical():
img, draw = create_base_image_draw((20, 20))
draw.line((5, 14, 5, 5), BLACK, 3)
assert_image_equal(img, expected, 'line straigth vertical inverted 3px wide failed')
def test_line_oblique_45():
expected = Image.open(os.path.join(IMAGES_PATH, 'line_oblique_45_w3px_a.png'))
expected.load()
img, draw = create_base_image_draw((20, 20))
draw.line((5, 5, 14, 14), BLACK, 3)
assert_image_equal(img, expected, 'line oblique 45º normal 3px wide A failed')
img, draw = create_base_image_draw((20, 20))
draw.line((14, 14, 5, 5), BLACK, 3)
assert_image_equal(img, expected, 'line oblique 45º inverted 3px wide A failed')
expected = Image.open(os.path.join(IMAGES_PATH, 'line_oblique_45_w3px_b.png'))
expected.load()
img, draw = create_base_image_draw((20, 20))
draw.line((14, 5, 5, 14), BLACK, 3)
assert_image_equal(img, expected, 'line oblique 45º normal 3px wide B failed')
img, draw = create_base_image_draw((20, 20))
draw.line((5, 14, 14, 5), BLACK, 3)
assert_image_equal(img, expected, 'line oblique 45º inverted 3px wide B failed')