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 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)