def test_wshader_2_line_points_at_both_ends(self):
s = Square()
shader = WShader(bounding_box=s, line_count=2)
point_list = [p for p in shader.path()]
assert_equal(s.top_left_point, point_list[0])
assert_equal(s.bottom_line.midpoint(), point_list[1])
assert_equal(s.top_right_point, point_list[2])
def test_points(self):
s = Square(Point(0, 0), 2)
top_right_distance = Point(1, 1).distance(s.top_right_point)
assert_almost_equals(top_right_distance, 0)
top_left_distance = Point(-1, 1).distance(s.top_left_point)
assert_almost_equals(top_left_distance, 0)
bottom_right_distance = Point(1, -1).distance(s.bottom_right_point)
assert_almost_equals(bottom_right_distance, 0)
bottom_left_distance = Point(-1, -1).distance(s.bottom_left_point)
assert_almost_equals(bottom_left_distance, 0)
def lines(data, conf, shades=10.0):
shades -= 1
x, y, pixel, reverse = data
pixel = 255 - pixel # invert the color 255 is now black and 0 is white
pixel = int(pixel * (shades / 255.0))
pixel = pixel - 2
if pixel < 0:
pixel = 0
if pixel:
x = x * conf.pixel_size
y = y * conf.pixel_size
center = Point(x + conf.pixel_size / 2, y + conf.pixel_size / 2)
bounding_box = Square(origin=center, size=conf.pixel_size)
return WShader(bounding_box=bounding_box,
line_count=pixel,
reverse=reverse,
v_scale=0.8)
def test_wshader_0_line(self):
s = Square()
shader = WShader(bounding_box=s, line_count=0)
point_list = [p for p in shader.path()]
assert_equal(len(point_list), 0)
def test_wshader_v_scale(self):
s = Square()
shader = WShader(bounding_box=s, line_count=1, v_scale=2)
point_list = [p for p in shader.path()]
assert_equal(Point(-0.5, 1), point_list[0])
def test_wshader_reversed(self):
s = Square()
shader = WShader(bounding_box=s, line_count=1, reverse=True)
point_list = [p for p in shader.path()]
assert_equal(s.bottom_right_point, point_list[0])
assert_equal(s.top_left_point, point_list[1])
def test_wshader_1_line_has_2_points_on_path(self):
s = Square()
shader = WShader(bounding_box=s, line_count=1)
point_list = [p for p in shader.path()]
assert_equal(len(point_list), 2)
def test_path(self):
s = Square()
c = sum([1 for i in s.path()])
assert_equals(c, 5)
def test_top_line(self):
s = Square(Point(0, 0), 2)
expected = Line(Point(-1, 1), Point(1, 1))
assert_equal(s.top_line, expected)
def test_bottom_line(self):
s = Square(Point(0, 0), 2)
expected = Line(Point(-1, -1), Point(1, -1))
assert_equal(s.bottom_line, expected)
def test_point_from_string(self):
s = Square()
assert_equals(s.top_left_point, s.get_point("tl"))
def test_path_starts_and_ends_on_sames_point(self):
s = Square()
point_list = [p for p in s.path()]
assert_is(point_list[0], point_list[-1])