@openhps/core/dist/esm/three/animation/tracks/QuaternionKeyframeTrack.js

Open Hybrid Positioning System - Core component

import { KeyframeTrack } from '../KeyframeTrack.js';
import { QuaternionLinearInterpolant } from '../../math/interpolants/QuaternionLinearInterpolant.js';

/**
 * A track for Quaternion keyframe values.
 *
 * @augments KeyframeTrack
 */
class QuaternionKeyframeTrack extends KeyframeTrack {
  /**
   * Constructs a new Quaternion keyframe track.
   *
   * @param {string} name - The keyframe track's name.
   * @param {Array<number>} times - A list of keyframe times.
   * @param {Array<number>} values - A list of keyframe values.
   * @param {(InterpolateLinear|InterpolateDiscrete|InterpolateSmooth)} [interpolation] - The interpolation type.
   */
  constructor(name, times, values, interpolation) {
    super(name, times, values, interpolation);
  }

  /**
   * Overwritten so the method returns Quaternion based interpolant.
   *
   * @static
   * @param {TypedArray} [result] - The result buffer.
   * @return {QuaternionLinearInterpolant} The new interpolant.
   */
  InterpolantFactoryMethodLinear(result) {
    return new QuaternionLinearInterpolant(this.times, this.values, this.getValueSize(), result);
  }
}

/**
 * The value type name.
 *
 * @type {String}
 * @default 'quaternion'
 */
QuaternionKeyframeTrack.prototype.ValueTypeName = 'quaternion';
// ValueBufferType is inherited
// DefaultInterpolation is inherited;
QuaternionKeyframeTrack.prototype.InterpolantFactoryMethodSmooth = undefined;
export { QuaternionKeyframeTrack };