Method GetValue

src/KeyFrame.cpp:258–279

Get the value at a specific index

// Get the value at a specific index
double Keyframe::GetValue(int64_t index) const {
	if (Points.empty()) {
		return 0;
	}
	std::vector<Point>::const_iterator candidate =
		std::lower_bound(begin(Points), end(Points), static_cast<double>(index), IsPointBeforeX);

	if (candidate == end(Points)) {
		// index is behind last point
		return Points.back().co.Y;
	}
	if (candidate == begin(Points)) {
		// index is at or before first point
		return Points.front().co.Y;
	}
	if (candidate->co.X == index) {
		// index is directly on a point
		return candidate->co.Y;
	}
	std::vector<Point>::const_iterator predecessor = candidate - 1;
	return InterpolateBetween(*predecessor, *candidate, index, 0.01);
}

// Get the rounded INT value at a specific index
int Keyframe::GetInt(int64_t index) const {