Implement support for RGB colourspace model and keywords argument p…

…assing to the `colour.convert` definition.

colour_visuals/common.py

@@ -53,6 +53,7 @@ def XYZ_to_colourspace_model(
     XYZ: ArrayLike,
     illuminant: ArrayLike,
     model: LiteralColourspaceModel | str = "CIE xyY",
+    normalise_model: bool = True,
     **kwargs,
 ) -> NDArray:
     """
@@ -69,6 +70,19 @@ def XYZ_to_colourspace_model(
     model
         Colourspace model, see :attr:`colour.COLOURSPACE_MODELS` attribute for
         the list of supported colourspace models.
+    normalise_model
+        Whether to normalise colourspace models such as :math:`IC_TC_P` and
+        :math:`J_za_zb_z`.
+
+    Other Parameters
+    ----------------
+    kwargs
+        See the documentation of the supported conversion definitions.
+
+    Returns
+    -------
+    Any
+        Converted *CIE XYZ* tristimulus values.
     """
 
     ijk = convert(
@@ -80,12 +94,11 @@ def XYZ_to_colourspace_model(
         **kwargs,
     )
 
-    if model == "ICtCp":
-        ijk /= XYZ_to_ICtCp([1, 1, 1])[0]
-    elif model == "JzAzBz":
-        ijk /= XYZ_to_Jzazbz([1, 1, 1])[0]
-    elif model == "OSA UCS":
-        ijk /= XYZ_to_OSA_UCS([1, 1, 1])[0]
+    if normalise_model:
+        if model == "ICtCp":
+            ijk /= XYZ_to_ICtCp([1, 1, 1])[0]
+        elif model == "JzAzBz":
+            ijk /= XYZ_to_Jzazbz([1, 1, 1])[0]
 
     return ijk
 

colour_visuals/diagrams.py

@@ -286,6 +286,11 @@ class VisualSpectralLocus3D(gfx.Line):
     thickness
         Thickness of the visual lines.
 
+    Other Parameters
+    ----------------
+    kwargs
+        See the documentation of the supported conversion definitions.
+
     Examples
     --------
     >>> import os
@@ -323,6 +328,7 @@ def __init__(
         colours: ArrayLike | None = None,
         opacity: float = 1,
         thickness: float = 1,
+            **kwargs,
     ):
         super().__init__()
 
@@ -334,7 +340,7 @@ def __init__(
 
         positions = colourspace_model_axis_reorder(
             XYZ_to_colourspace_model(
-                cmfs.values, colourspace.whitepoint, model
+                cmfs.values, colourspace.whitepoint, model,     **kwargs
             ),
             model,
         )

colour_visuals/pointer_gamut.py

@@ -171,6 +171,11 @@ class VisualPointerGamut3D(gfx.Line):
     thickness
         Thickness of the visual lines.
 
+    Other Parameters
+    ----------------
+    kwargs
+        See the documentation of the supported conversion definitions.
+
     Examples
     --------
     >>> import os
@@ -203,6 +208,7 @@ def __init__(
         colours: ArrayLike | None = None,
         opacity: float = 0.5,
         thickness: float = 1,
+    **kwargs,
     ):
         super().__init__()
 
@@ -231,7 +237,8 @@ def __init__(
             XYZ_to_colourspace_model(
                 sections,
                 CCS_ILLUMINANT_POINTER_GAMUT,
-                model,
+                model,    **kwargs,
+
             ),
             model,
         ).reshape([-1, 3])

colour_visuals/rgb_colourspace.py

@@ -202,6 +202,11 @@ class VisualRGBColourspace3D(gfx.Mesh):
     segments
         Edge segments count for the *RGB* colourspace cube.
 
+    Other Parameters
+    ----------------
+    kwargs
+        See the documentation of the supported conversion definitions.
+
     Examples
     --------
     >>> import os
@@ -243,6 +248,7 @@ def __init__(
         material: Type[gfx.MeshAbstractMaterial] = gfx.MeshBasicMaterial,
         wireframe: bool = False,
         segments: int = 16,
+        **kwargs,
     ):
         colourspace = cast(
             RGB_Colourspace,
@@ -271,6 +277,7 @@ def __init__(
                 RGB_to_XYZ(positions, colourspace),
                 colourspace.whitepoint,
                 model,
+                **kwargs,
             ),
             model,
         )
@@ -336,4 +343,8 @@ def __init__(
     visual_6.local.position = np.array([4.5, 0, 0])
     scene.add(visual_6)
 
+    visual_7 = VisualRGBColourspace3D(model="RGB")
+    visual_7.local.position = np.array([5.5, 0, 0])
+    scene.add(visual_7)
+
     gfx.show(scene, up=np.array([0, 0, 1]))

colour_visuals/rgb_scatter.py

@@ -67,6 +67,11 @@ class VisualRGBScatter3D(gfx.Points):
     size
         Size of the visual points
 
+    Other Parameters
+    ----------------
+    kwargs
+        See the documentation of the supported conversion definitions.
+
     Examples
     --------
     >>> import os
@@ -107,6 +112,7 @@ def __init__(
         colours: ArrayLike | None = None,
         opacity: float = 1,
         size: float = 2,
+    **kwargs,
     ):
         colourspace = cast(
             RGB_Colourspace,
@@ -120,7 +126,8 @@ def __init__(
         XYZ = RGB_to_XYZ(RGB, colourspace)
 
         positions = colourspace_model_axis_reorder(
-            XYZ_to_colourspace_model(XYZ, colourspace.whitepoint, model),
+            XYZ_to_colourspace_model(XYZ, colourspace.whitepoint, model,    **kwargs,
+),
             model,
         )
 

colour_visuals/rosch_macadam.py

@@ -75,6 +75,11 @@ class VisualRoschMacAdam(gfx.Line):
     thickness
         Thickness of the visual lines.
 
+    Other Parameters
+    ----------------
+    kwargs
+        See the documentation of the supported conversion definitions.
+
     Examples
     --------
     >>> import os
@@ -119,6 +124,7 @@ def __init__(
         colours: ArrayLike | None = None,
         opacity: float = 1,
         thickness: float = 1,
+        **kwargs,
     ):
         super().__init__()
 
@@ -142,7 +148,11 @@ def __init__(
         XYZ[XYZ == 0] = EPSILON
 
         positions = colourspace_model_axis_reorder(
-            XYZ_to_colourspace_model(XYZ, colourspace.whitepoint, model),
+            XYZ_to_colourspace_model(
+                XYZ,
+                colourspace.whitepoint,
+                model,**kwargs,
+            ),
             model,
         )
         positions = np.concatenate(