def test__call__(self):
"""
Tests :func:`colour.algebra.interpolation.NullInterpolator.__call__`
method.
"""
x = np.arange(len(POINTS_DATA_A))
null_interpolator = NullInterpolator(x, POINTS_DATA_A)
np.testing.assert_almost_equal(
null_interpolator(np.array([0.75, 2.0, 3.0, 4.75])),
np.array([np.nan, 12.46, 9.51, np.nan]))
null_interpolator = NullInterpolator(x, POINTS_DATA_A, 0.25, 0.25)
np.testing.assert_almost_equal(
null_interpolator(np.array([0.75, 2.0, 3.0, 4.75])),
np.array([12.32, 12.46, 9.51, 4.33]))
def test_default(self):
"""
Tests :func:`colour.algebra.interpolation.NullInterpolator.\
default` property.
"""
x = y = np.linspace(0, 1, 10)
null_interpolator = NullInterpolator(x, y, default=0)
np.testing.assert_equal(null_interpolator.default, 0)
def test_relative_tolerance(self):
"""
Tests :func:`colour.algebra.interpolation.NullInterpolator.\
relative_tolerance` property.
"""
x = y = np.linspace(0, 1, 10)
null_interpolator = NullInterpolator(x, y, relative_tolerance=0.1)
np.testing.assert_equal(null_interpolator.relative_tolerance, 0.1)
def test_y(self):
"""
Tests :func:`colour.algebra.interpolation.NullInterpolator.y`
property.
"""
x = y = np.linspace(0, 1, 10)
null_interpolator = NullInterpolator(x, y)
np.testing.assert_equal(null_interpolator.y, y)
def test_absolute_tolerance(self):
"""
Test :attr:`colour.algebra.interpolation.NullInterpolator.\
absolute_tolerance` property.
"""
x = y = np.linspace(0, 1, 10)
null_interpolator = NullInterpolator(x, y, absolute_tolerance=0.1)
np.testing.assert_equal(null_interpolator.absolute_tolerance, 0.1)
def test_x(self):
"""
Test :attr:`colour.algebra.interpolation.NullInterpolator.x`
property.
"""
x = y = np.linspace(0, 1, 10)
null_interpolator = NullInterpolator(x, y)
np.testing.assert_equal(null_interpolator.x, x)
def test_raise_exception___call__(self):
"""
Tests :func:`colour.algebra.interpolation.NullInterpolator.__call__`
method raised exception.
"""
x = y = np.linspace(0, 1, 10)
null_interpolator = NullInterpolator(x, y)
self.assertRaises(ValueError, null_interpolator, -1)
self.assertRaises(ValueError, null_interpolator, 11)
def __init__(
self,
interpolator: Optional[TypeInterpolator] = None,
method: Union[Literal["Linear", "Constant"], str] = "Linear",
left: Optional[Number] = None,
right: Optional[Number] = None,
dtype: Optional[Type[DTypeNumber]] = None,
):
dtype = cast(Type[DTypeNumber], optional(dtype, DEFAULT_FLOAT_DTYPE))
self._interpolator: TypeInterpolator = NullInterpolator(
np.array([-np.inf, np.inf]), np.array([-np.inf, np.inf]))
self.interpolator = optional(interpolator, self._interpolator)
self._method: Union[Literal["Linear", "Constant"], str] = "Linear"
self.method = cast(
Union[Literal["Linear", "Constant"], str],
optional(method, self._method),
)
self._right: Optional[Number] = None
self.right = right
self._left: Optional[Number] = None
self.left = left
self._dtype: Type[DTypeNumber] = dtype