def task_4_15_2():
test_point = Vec({"x", "y", "u"}, {"x": 2, "y": 1.5, "u": 1})
against_point = identity() * test_point
assert (against_point == test_point)
image_mat_location, image_mat_colors = image_mat_util.file2mat(
'matrix/meme_avatar.png')
ident_location = (identity() * image_mat_location)
assert (ident_location == image_mat_location)
def task_4_15_4():
test_point = Vec({"x", "y", "u"}, {"x": 2, "y": 1.5, "u": 1})
against_point = scale(2, 2) * test_point
expected = Vec({"x", "y", "u"}, {
"x": test_point["x"] * 2,
"y": test_point["y"] * 2,
"u": 1
})
assert (against_point == expected)
image_mat_location, image_mat_colors = image_mat_util.file2mat(
'matrix/meme_avatar.png')
scaled_location = (scale(2, 2) * image_mat_location)
image_mat_util.mat2display(scaled_location, image_mat_colors)
def task_4_15_3():
test_point = Vec({"x", "y", "u"}, {"x": 2, "y": 1.5, "u": 1})
against_point = translation(1, 2) * test_point
expected = Vec({"x", "y", "u"}, {
"x": test_point["x"] + 1,
"y": test_point["y"] + 2,
"u": 1
})
assert (against_point == expected)
image_mat_location, image_mat_colors = image_mat_util.file2mat(
'matrix/meme_avatar.png')
translated_location = (translation(20, 20) * image_mat_location)
image_mat_util.mat2display(translated_location, image_mat_colors)
def task_4_15_5():
theta = math.pi / 4
test_point = Vec({"x", "y", "u"}, {
"x": math.cos(theta),
"y": math.sin(theta),
"u": 1
})
rotated_point = rotation(theta) * test_point
expected = Vec({"x", "y", "u"}, {"x": 0, "y": 1, "u": 1})
print(rotated_point, expected)
assert (round(rotated_point["x"]) == expected["x"])
assert (round(rotated_point["y"]) == expected["y"])
image_mat_location, image_mat_colors = image_mat_util.file2mat(
'matrix/meme_avatar.png')
rotated_location = (translation(100, 100) * rotation(math.pi / 4) *
image_mat_location)
image_mat_util.mat2display(rotated_location, image_mat_colors)
def task_4_15_1():
image_mat_location, image_mat_colors = image_mat_util.file2mat(
'matrix/meme_avatar.png')
image_mat_util.mat2display(image_mat_location, image_mat_colors)
def test_grayscale():
image_mat_location, image_mat_colors = image_mat_util.file2mat(
'matrix/meme_avatar.png')
gray_colors = grayscale() * image_mat_colors
image_mat_util.mat2display(image_mat_location, gray_colors)