Creates a set of spline control points.
- Parameters:
- x: Input levels normalized by reference white: 1.0 = reference white,
and at most 32 points.
- y: Gain offsets in stops, one per `x` value. Must have
the same count as `x` and non-negative.
- slopes: How the framework determines the slope at each
control point. Defaults to ``Slopes/interpolate``.
- Throws: ``Error/mismatchedControlPointArrays(x:y:)`` if
`x` and `y` differ in count,
``Error/tooManyControlPoints(count:limit:)`` if there are
more than 32 points, or
``Error/mismatchedTangentCount(got:expected:)`` if
explicit `slopes` don't match the point count.
get · iOS 27.0+
x
TypeScript
get x(): Array<number>
Swift declaration
var x: [Float]
Input levels normalized by reference white: 1.0 = reference white.
set · iOS 27.0+
x
TypeScript
set x(value: Array<number>)
Swift declaration
var x: [Float]
Input levels normalized by reference white: 1.0 = reference white.
get · iOS 27.0+
y
TypeScript
get y(): Array<number>
Swift declaration
var y: [Float]
Gain offsets in stops (non-negative): the framework infers direction (expand vs. compress) from
the relationship between this alternate's headroom and the baseline headroom.
set · iOS 27.0+
y
TypeScript
set y(value: Array<number>)
Swift declaration
var y: [Float]
Gain offsets in stops (non-negative): the framework infers direction (expand vs. compress) from
the relationship between this alternate's headroom and the baseline headroom.
get · iOS 27.0+
slopes
TypeScript
get slopes(): ColorSyncProfile_HeadroomAdaptiveGainCurve_ColorVolumeTransform_ToneMapping_Method_AlternateCurve_ControlPoints_Slopes
Swift declaration
var slopes: ColorSyncProfile.HeadroomAdaptiveGainCurve.ColorVolumeTransform.ToneMapping.Method.AlternateCurve.ControlPoints.Slopes
How the framework determines the slope at each control point.
set · iOS 27.0+
slopes
TypeScript
set slopes(value: ColorSyncProfile_HeadroomAdaptiveGainCurve_ColorVolumeTransform_ToneMapping_Method_AlternateCurve_ControlPoints_Slopes)
Swift declaration
var slopes: ColorSyncProfile.HeadroomAdaptiveGainCurve.ColorVolumeTransform.ToneMapping.Method.AlternateCurve.ControlPoints.Slopes
How the framework determines the slope at each control point.
