def test_copy(self):
filepath = self.random_profile_file()
p1 = Profile(filepath)
p2 = Profile.copy(p1)
assert not p1 is p2
assert p1 == p2
assert not p1 != p2
def test_scale(self):
filepath = self.random_profile_file()
scale = 2.25
p1 = Profile(filepath)
p2 = Profile(filepath)
p2 = Profile.scale(p2, scale)
for i in range(len(p1.top.coordinates)):
assert p2.top.coordinates[i] == p1.top.coordinates[i] * scale
for i in range(len(p1.bottom.coordinates)):
assert p2.bottom.coordinates[i] == p1.bottom.coordinates[i] * scale
p3 = p1 * scale
assert p2 == p3
def test_add_sub(self):
top = [
Coordinate(0.2, 0.4),
Coordinate(0.4, 0.5),
Coordinate(0.6, 0.6),
Coordinate(0.8, 0.7)
]
bottom = [
Coordinate(0.3, 0.1),
Coordinate(0.4, 0.2),
Coordinate(0.5, 0.3),
Coordinate(0.6, 0.4)
]
coord = Coordinate(1, 2)
p1 = Profile(top + bottom)
p2 = p1 + coord
p3 = p2 - coord
assert p1 == p3
with pytest.raises(NotImplementedError):
p1 + 1
with pytest.raises(NotImplementedError):
p1 - "s"
def test_comparison(self):
top = [
Coordinate(0.2, 0.4),
Coordinate(0.4, 0.5),
Coordinate(0.6, 0.6),
Coordinate(0.8, 0.7)
]
other_top = [
Coordinate(0.1, 0.4),
Coordinate(0.4, 0.5),
Coordinate(0.6, 0.6),
Coordinate(0.8, 0.7)
]
bottom = [
Coordinate(0.3, 0.1),
Coordinate(0.4, 0.2),
Coordinate(0.5, 0.3),
Coordinate(0.6, 0.4)
]
other_bottom = [
Coordinate(0.1, 0.1),
Coordinate(0.2, 0.2),
Coordinate(0.5, 0.4),
Coordinate(0.6, 0.5)
]
p1 = Profile(top + bottom)
p2 = Profile(top + bottom)
p3 = Profile(top + other_bottom)
p4 = Profile(other_top + bottom)
p5 = Profile(other_top + other_bottom)
assert p1 == p2
assert p2 != p3
assert p3 != p4
assert p4 != p5
with pytest.raises(NotImplementedError):
p1 == 1
with pytest.raises(NotImplementedError):
p1 != "s"
def test_rotate(self):
top = [
Coordinate(0.2, 0.4),
Coordinate(0.4, 0.5),
Coordinate(0.6, 0.6),
Coordinate(0.8, 0.7)
]
bottom = [
Coordinate(0.3, 0.1),
Coordinate(0.4, 0.2),
Coordinate(0.5, 0.3),
Coordinate(0.6, 0.4)
]
p1 = Profile(top + bottom)
origin = Coordinate(1, 2)
angle = 10
p1_r = Profile.rotate(origin, p1, angle)
p2 = Profile.rotate(origin, p1_r, -angle)
assert p1 == p2
def test_load_dat_from_url(self):
urls = Urls()
return
## skip for now to save time
for i in range(5):
url = urls.random['location']
try:
p = Profile(url)
except:
print(url)
raise
def test_translate(self):
top = [
Coordinate(0.2, 0.4),
Coordinate(0.4, 0.5),
Coordinate(0.6, 0.6),
Coordinate(0.8, 0.7)
]
bottom = [
Coordinate(0.3, 0.1),
Coordinate(0.4, 0.2),
Coordinate(0.5, 0.3),
Coordinate(0.6, 0.4)
]
# trim using the min and max x - should not change
p1 = Profile(top + bottom)
offset = Coordinate(1, 2)
p2 = Profile.translate(p1, offset)
for i in range(len(p1.top.coordinates)):
assert p2.top.coordinates[i] == p1.top.coordinates[i] + offset
p3 = p1 + offset
assert p2 == p3
def test_create_profile(self):
from hotwing_core import Coordinate
from hotwing_core import Surface
from hotwing_core import Profile
top = [
Coordinate(1.000, 0.000),
Coordinate(0.900, 0.015),
Coordinate(0.800, 0.030),
Coordinate(0.700, 0.045),
Coordinate(0.600, 0.060),
Coordinate(0.500, 0.075),
Coordinate(0.400, 0.090),
Coordinate(0.300, 0.105),
Coordinate(0.200, 0.100),
Coordinate(0.100, 0.075),
Coordinate(0.000, 0.000),
]
bottom = [
Coordinate(1.000, 0),
Coordinate(0.900, -0.00375),
Coordinate(0.800, -0.0075),
Coordinate(0.700, -0.01125),
Coordinate(0.600, -0.015),
Coordinate(0.500, -0.01875),
Coordinate(0.400, -0.0225),
Coordinate(0.300, -0.02625),
Coordinate(0.200, -0.025),
Coordinate(0.100, -0.01875),
Coordinate(0.000, 0),
]
both = top + bottom
# You can create a profile from a list of Coordinates
p = Profile(both)
# You can create a Coordinate from two - top and bottom - Surface objects.
p = Profile(Surface(top), Surface(bottom))
# You can open an airfoil from dat (Selig or Lednicer format) a file on your hard drive
# p = Profile("profiles/myprofile.dat")
# You can open an airfoil from dat (Selig or Lednicer format) via a URL:
p = Profile("http://m-selig.ae.illinois.edu/ads/coord/e374.dat")
def test_trim(self):
top = [
Coordinate(0.2, 0.4),
Coordinate(0.4, 0.5),
Coordinate(0.6, 0.6),
Coordinate(0.8, 0.7)
]
bottom = [
Coordinate(0.3, 0.1),
Coordinate(0.4, 0.2),
Coordinate(0.5, 0.3),
Coordinate(0.6, 0.4)
]
# trim using the min and max x - should not change
p1 = Profile(top + bottom)
p2 = Profile.trim(p1, 0.2, 0.8)
assert p1.top == p2.top
# extend profile
p3 = Profile.trim(p1, 0, 1)
assert p3.x_bounds[0] == 0
assert p3.x_bounds[1] == 1
# Try Using None Values
p4 = Profile.trim(p1, None, 1)
assert p4.x_bounds[0] == 0.2
assert p4.x_bounds[1] == 1
p5 = Profile.trim(p1, 0, None)
assert p5.x_bounds[0] == 0
assert p5.x_bounds[1] == 0.8
p6 = Profile.trim(p1, None, None)
assert p6.x_bounds[0] == 0.2
assert p6.x_bounds[1] == 0.8
def test_bounds(self):
top = [
Coordinate(0.2, 0.4),
Coordinate(0.4, 0.5),
Coordinate(0.6, 0.6),
Coordinate(0.8, 0.7)
]
bottom = [
Coordinate(0.3, 0.1),
Coordinate(0.4, 0.2),
Coordinate(0.5, 0.3),
Coordinate(0.6, 0.4)
]
p = Profile(top + bottom)
assert p.x_bounds[0] == 0.2
assert p.x_bounds[1] == 0.8
assert p.y_bounds[0] == 0.1
assert p.y_bounds[1] == 0.7
def test_split(self):
top = [
Coordinate(0.2, 0.3),
Coordinate(0.4, 0.4),
Coordinate(0.6, 0.5),
Coordinate(0.8, 0.6)
]
bottom = [
Coordinate(0.3, 0.2),
Coordinate(0.4, 0.4),
Coordinate(0.5, 0.6),
Coordinate(0.6, 0.8)
]
p = Profile(top + bottom)
assert len(p.top.coordinates) == len(top)
assert p.top == Surface(top)
assert len(p.bottom.coordinates) == len(bottom)
assert p.bottom == Surface(bottom)
def test_load_dat_file(self):
# try to load all profiles
for i in range(5):
p = Profile(self.random_profile_file())
def test_init_bad_addribute(self):
with pytest.raises(AttributeError):
Profile("", "", "")