lib/ui/lerp.dart

// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// @dart = 2.6
part of dart.ui;

/// Linearly interpolate between two numbers.
double/*!*/ lerpDouble(num/*?*/ a, num/*?*/ b, double/*!*/ t) {
  if (a == null && b == null)
    return null;
  a ??= 0.0;
  b ??= 0.0;
  return a + (b - a) * t as double;
}