@Override
  public final PointF getValue(LottieFrameInfo<PointF> frameInfo) {
    point.set(
        MiscUtils.lerp(
            frameInfo.getStartValue().x,
            frameInfo.getEndValue().x,
            frameInfo.getInterpolatedKeyframeProgress()),
        MiscUtils.lerp(
            frameInfo.getStartValue().y,
            frameInfo.getEndValue().y,
            frameInfo.getInterpolatedKeyframeProgress())
    );

    PointF offset = getOffset(frameInfo);
    point.offset(offset.x, offset.y);
    return point;
  }
{@link LottieValueCallback} that provides a value offset from the original animation
rather than an absolute value.
lottie/src/main/java/com/airbnb/lottie/value/LottieRelativePointValueCallback.java