def __eq__(self, color):
'''
Check if this material color is equal to I{color}.
>>> c1 = MaterialColor((0.5, 0.6, 0.7))
>>> c2 = MaterialColor((0.5, 0.6, 0.70000000000002))
>>> c1 == c2
True
>>> c2.blue = 0.7002
>>> c1 == c2
False
>>> c2.blue = 0.7
>>> c2.shininess = 0.01
>>> c1 == c2
False
'''
equality = [Color.__eq__(color.diffuse, self.diffuse),
color.ambient == self.ambient,
color.specular == self.specular,
color.emissive == self.emissive,
fequals(color.shininess, self.shininess)]
return False not in equality
def _assign_texture_coords(self, section, height):
section.append(Vertex(section[0].position))
lengths = []
for index in xrange(len(section) - 1):
p1 = section[index]
p2 = section[index+1]
lengths.append(p2.distance(p1))
perimeter = float(sum(lengths))
if fequals(perimeter, 0):
lengths = [1./len(lengths)] * len(lengths)
perimeter = 1.
tcoord = 0.0
for index, length in enumerate(lengths):
section[index].tcoord = (tcoord, height)
increment = length / perimeter
tcoord = tcoord + increment
section[index]
section[-1].tcoord = (1.0, height)
def test_material_color():
# Check if color construction works
m = system.MaterialColor((0.5, 0.6, 0.7))
assert(fequals(m.red, 0.5))
assert(fequals(m.green, 0.6))
assert(fequals(m.blue, 0.7))
# Check if HSV conversion works
h, s, v = m.get_hsv()
assert(fequals(h, 0.58333333333333337))
assert(fequals(s, 0.28571428571428564))
assert(fequals(v, 0.69999999999999996))
# Check that diffuse is same as MaterialColor
dh, ds, dv = m.diffuse.get_hsv()
assert(fequals(h, dh))
assert(fequals(s, ds))
assert(fequals(v, dv))
# Check if value of ambient color is lesser
h, s, v = m.ambient.get_hsv()
assert(fequals(h, 0.58333333333333337))
assert(fequals(s, 0.28571428571428559))
assert(fequals(v, 0.55999999999999994)) # <--
# Check if value of specular color is greater
h, s, v = m.specular.get_hsv()
assert(fequals(h, 0.58333333333333337))
assert(fequals(s, 0.28571428571428559))
assert(fequals(v, 0.84)) # <--
# Check if default emissive color is black
h, s, v = m.emissive.get_hsv()
assert(h == s == v)
assert(fequals(h, 0))
# Set value for emissive and check that
# only 'value' component is modified
m.set_emissive_value(0.5)
h, s, v = m.emissive.get_hsv()
assert(fequals(h, 0.58333333333333337))
assert(fequals(s, 0.28571428571428564))
assert(fequals(v, 0.5))
# Check update() method
m.ambient_change = -.4
# Check that nothing changed
h, s, v = m.ambient.get_hsv()
assert(fequals(h, 0.58333333333333337))
assert(fequals(s, 0.28571428571428559))
assert(fequals(v, 0.55999999999999994))
# do update()
m.update()
# Check that update of ambient has worked
h, s, v = m.ambient.get_hsv()
assert(fequals(h, 0.583333333333))
assert(fequals(s, 0.285714285714))
assert(fequals(v, 0.42))
def test_color():
# Check if color construction works
c = system.Color((0.5, 0.6, 0.7))
assert(fequals(c.red, 0.5))
assert(fequals(c.green, 0.6))
assert(fequals(c.blue, 0.7))
# Check if RGB to HSV conversion works
h,s,v = c.get_hsv()
assert(fequals(h, 0.583333333333))
assert(fequals(s, 0.285714285714))
assert(fequals(v, 0.7))
# Check if HSV to RGB conversion works
c = system.Color(hsv=(0.583333333333, 0.285714285714, 0.7))
r, g, b = c.get_rgb()
assert(fequals(r, 0.5))
assert(fequals(g, 0.6))
assert(fequals(b, 0.7))
# Check if invalid inputs are handled sanely
c = system.Color((2, -1, 20.5))
assert(fequals(c.red, 1))
assert(fequals(c.green, 0))
assert(fequals(c.blue, 1))
