animation_curve_fit

Functions

• calculateTangent(points, points_offset, points_count, index)

Calculates a Catmull-Rom style tangent (slope) for a point in the dataset.

• animation_curve_fit(points, [input_offset], [input_count], [maxError]) ⇒ AnimationCurve

Fits a smooth AnimationCurve to a set of discrete 2D points using adaptive Cubic Hermite Spline fitting.

This utility performs data reduction (lossy compression) on dense time-series data. It recursively subdivides the dataset, inserting Keyframes only where the interpolated curve deviates from the original points by more than maxError.

Tangents are automatically estimated based on the slope of the input data (Catmull-Rom style), ensuring smooth transitions between keyframes.

calculateTangent(points, points_offset, points_count, index)

Calculates a Catmull-Rom style tangent (slope) for a point in the dataset.

Kind: global function

Param	Type
points	Array.<number>
points_offset	number
points_count	number
index	number

animation_curve_fit(points, [input_offset], [input_count], [maxError]) ⇒ AnimationCurve

Fits a smooth AnimationCurve to a set of discrete 2D points using adaptive Cubic Hermite Spline fitting.

This utility performs data reduction (lossy compression) on dense time-series data. It recursively subdivides the dataset, inserting Keyframes only where the interpolated curve deviates from the original points by more than maxError.

Tangents are automatically estimated based on the slope of the input data (Catmull-Rom style), ensuring smooth transitions between keyframes.

Kind: global function

Param	Type	Description
points	Array.<number>	flat array of coordinates [x0, y0, x1, y1, ... xn, yn]
[input_offset]	number	flat offset into the input array where to start reading data
[input_count]	number	number of points to fit, counted in points i.e., pairs of (x,y) values
[maxError]	number	Maximum allowed deviation. Higher values produce fewer keys (more compression), lower values preserve more detail.

• animation_curve_fit(points, [input_offset], [input_count], [maxError]) ⇒ AnimationCurve
  • ~resultKeys : Array.<Keyframe>
  • ~fitSegment(firstIndex, lastIndex)

animation_curve_fit~resultKeys : Array.<Keyframe>

Kind: inner constant of animation_curve_fit

animation_curve_fit~fitSegment(firstIndex, lastIndex)

Recursive function to find split points

Kind: inner method of animation_curve_fit

Param	Type
firstIndex	number
lastIndex	number