Interpolant class

Abstract base class of interpolants over parametric samples.

The parameter domain is one dimensional, typically the time or a path along a curve defined by the data.

The sample values can have any dimensionality and derived classes may apply special interpretations to the data.

This class provides the interval seek in a Template Method, deferring the actual interpolation to derived classes.

Time complexity is O(1) for linear access crossing at most two points and O(log N) for random access, where N is the number of positions.

References:

http://www.oodesign.com/template-method-pattern.html

Implementers

• CubicInterpolant
• DiscreteInterpolant
• LinearInterpolant
• QuaternionLinearInterpolant

Constructors

Interpolant(List<num> parameterPositions, List<num> sampleValues, int valueSize, List? resultBuffer)

parameterPositions -- array of positions

Properties

cachedIndex ↔ int

getter/setter pair

defaultSettings ↔ Map<String, dynamic>

getter/setter pair

hashCode → int

The hash code for this object.

no setter, inherited

parameterPositions ↔ List<num>

getter/setter pair

resultBuffer ↔ List?

getter/setter pair

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

sampleValues ↔ List<num>

getter/setter pair

settings ↔ Map<String, dynamic>?

getter/setter pair

valueSize ↔ int

getter/setter pair

Methods

afterEnd(int v1, dynamic v2, dynamic v3) → List?

beforeStart(int v1, dynamic v2, dynamic v3) → List?

copySampleValue(int index) → List?

evaluate(num t) → List?

Evaluate the interpolant at position t.

getSettings() → Map<String, dynamic>

interpolate(int i1, num t0, num t, num t1) → List?

intervalChanged(int v1, int v2, int v3) → void

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited