/**
 * 抽象插值采样类
 */
export declare abstract class InterpolationSampler {
    protected time: Float32Array;
    protected data: Float32Array;
    protected componentCount: number;
    protected cachedIndex: number;
    constructor(time: Float32Array, data: Float32Array, componentCount: number);
    /**
     * 计算当前 t 时刻的插值
     * @param t - 当前时间
     * @returns 插值结果
     */
    evaluate(t: number): Float32Array;
    /**
     * 销毁
     */
    dispose(): void;
    protected copySampleValue(index: number): Float32Array;
    protected abstract intervalChanged(i1: number, t0: number, t1: number): void;
    protected abstract interpolate(i1: number, t0: number, t: number, t1: number): Float32Array;
}
/**
 * 创建动画采样器，支持线性和跳变两种模式，类别上支持平移、旋转和缩放
 * @param type - 动画类型，线性和跳变
 * @param times - 时间点数组
 * @param data - 关键帧数组
 * @param size - 数据分量
 * @param path - 动画类别，平移、旋转和缩放
 * @returns 动画采样器
 */
export declare function createAnimationSampler(type: string, times: Float32Array, data: Float32Array, size: number, path?: string): InterpolationSampler;