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PR: Fix return type of _1_2_3 in models.rgb.cylindrical.HCL_to_RGB #1377

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Merged
merged 1 commit into from
Nov 22, 2025
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PR: Fix return type of _1_2_3 in models.rgb.cylindrical.HCL_to_RGB #1377

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4 changes: 2 additions & 2 deletions colour/models/rgb/cylindrical.py
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Original file line number Diff line number Diff line change
Expand Up @@ -56,7 +56,7 @@
from colour.algebra import sdiv, sdiv_mode

if typing.TYPE_CHECKING:
from colour.hints import Domain1, NDArrayFloat, Range1
from colour.hints import Domain1, NDArrayBoolean, NDArrayFloat, Range1

from colour.hints import ArrayLike, cast
from colour.utilities import as_float_array, from_range_1, to_domain_1, tsplit, tstack
Expand Down Expand Up @@ -520,7 +520,7 @@ def HCL_to_RGB(HCL: Domain1, gamma: float = 3, Y_0: float = 100) -> Range1:
r_n60 = np.radians(-60)
r_n120 = np.radians(-120)

def _1_2_3(a: ArrayLike) -> NDArrayFloat:
def _1_2_3(a: ArrayLike) -> NDArrayBoolean:
"""Tail-stack specified :math:`a` array as a *bool* dtype."""

return tstack(cast("ArrayLike", [a, a, a]), dtype=np.bool_)
Expand Down