RNBO Objects & Operators splineinterp
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splineinterp

Catmull-Rom spline interpolation

Description

Perform Catmull-Rom spline interpolation on event input. The interpolated shape of the spline is determined by four keyframe points (w, x, y, and z). The output curve is the segment between the middle two points (x and y).

Arguments

w [number]

Optional

Set's the value for the 'w' control point. This is the leftsmost value of the spline.

x [number]

Optional

Set's the value for the 'x' control point. This is the second value of the spline. The output curve is the segment between the middle two points (x and y).

y [number]

Optional

Set's the value for the 'y' control point. This is the third value of the spline. The output curve is the segment between the middle two points (x and y).

z [number]

Optional

Set's the value for the 'z' control point. This is the rightmost most value of the spline.

Inlets

a [number]

In the leftmost inlet, this is the input value to be interpolated.

w [number]

Set's the value for the 'w' control point. This is the leftsmost value of the spline.

x [number]

Set's the value for the 'x' control point. This is the second value of the spline. The output curve is the segment between the middle two points (x and y).

y [number]

Set's the value for the 'y' control point. This is the third value of the spline. The output curve is the segment between the middle two points (x and y).

z [number]

Set's the value for the 'z' control point. This is the rightmost most value of the spline.

Outlets

out1 [number]

The output curve is the segment between the middle two points (x and y).

Fixed Attributes

These attributes must be set in the object box and determine the behavior of the object at runtime.

hot [bool] (default: false)

Trigger computation on all inlets.

Dynamic Attributes

These attributes can be modified in the code during execution using the set object

a [number]

In the leftmost inlet, this is the input value to be interpolated.

reset [bang] (default: 0)

Banging this attribute will reset the object to its default state.

w [number]

Set's the value for the 'w' control point. This is the leftsmost value of the spline.

x [number]

Set's the value for the 'x' control point. This is the second value of the spline. The output curve is the segment between the middle two points (x and y).

y [number]

Set's the value for the 'y' control point. This is the third value of the spline. The output curve is the segment between the middle two points (x and y).

z [number]

Set's the value for the 'z' control point. This is the rightmost most value of the spline.

See Also

Name Description
interp Interpolate inputs
splineinterp~ Catmull-Rom spline interpolation
cubicinterp~ Cubic interpolation
linearinterp~ Linear interpolation
cosineinterp~ Cubic interpolation
slide The discrete derivative of the input
smoothstep Smoothed fade of inputs
rampsmooth Smooth an incoming signal