libvips/test/test-suite/test_draw.py

102 lines
2.7 KiB
Python

# vim: set fileencoding=utf-8 :
import pytest
import pyvips
class TestDraw:
def test_draw_circle(self):
im = pyvips.Image.black(100, 100)
im = im.draw_circle(100, 50, 50, 25)
pixel = im(25, 50)
assert len(pixel) == 1
assert pixel[0] == 100
pixel = im(26, 50)
assert len(pixel) == 1
assert pixel[0] == 0
im = pyvips.Image.black(100, 100)
im = im.draw_circle(100, 50, 50, 25, fill=True)
pixel = im(25, 50)
assert len(pixel) == 1
assert pixel[0] == 100
pixel = im(26, 50)
assert pixel[0] == 100
pixel = im(24, 50)
assert pixel[0] == 0
def test_draw_flood(self):
im = pyvips.Image.black(100, 100)
im = im.draw_circle(100, 50, 50, 25)
im = im.draw_flood(100, 50, 50)
im2 = pyvips.Image.black(100, 100)
im2 = im2.draw_circle(100, 50, 50, 25, fill=True)
diff = (im - im2).abs().max()
assert diff == 0
def test_draw_image(self):
im = pyvips.Image.black(51, 51)
im = im.draw_circle(100, 25, 25, 25, fill=True)
im2 = pyvips.Image.black(100, 100)
im2 = im2.draw_image(im, 25, 25)
im3 = pyvips.Image.black(100, 100)
im3 = im3.draw_circle(100, 50, 50, 25, fill=True)
diff = (im2 - im3).abs().max()
assert diff == 0
def test_draw_line(self):
im = pyvips.Image.black(100, 100)
im = im.draw_line(100, 0, 0, 100, 0)
pixel = im(0, 0)
assert len(pixel) == 1
assert pixel[0] == 100
pixel = im(0, 1)
assert len(pixel) == 1
assert pixel[0] == 0
def test_draw_mask(self):
mask = pyvips.Image.black(51, 51)
mask = mask.draw_circle(128, 25, 25, 25, fill=True)
im = pyvips.Image.black(100, 100)
im = im.draw_mask(200, mask, 25, 25)
im2 = pyvips.Image.black(100, 100)
im2 = im2.draw_circle(100, 50, 50, 25, fill=True)
diff = (im - im2).abs().max()
assert diff == 0
def test_draw_rect(self):
im = pyvips.Image.black(100, 100)
im = im.draw_rect(100, 25, 25, 50, 50, fill=True)
im2 = pyvips.Image.black(100, 100)
for y in range(25, 75):
im2 = im2.draw_line(100, 25, y, 74, y)
diff = (im - im2).abs().max()
assert diff == 0
def test_draw_smudge(self):
im = pyvips.Image.black(100, 100)
im = im.draw_circle(100, 50, 50, 25, fill=True)
im2 = im.draw_smudge(10, 10, 50, 50)
im3 = im.crop(10, 10, 50, 50)
im4 = im2.draw_image(im3, 10, 10)
diff = (im4 - im).abs().max()
assert diff == 0
if __name__ == '__main__':
pytest.main()