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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 double _evaluateCubic(double a, double b, double m) { | 5 double _evaluateCubic(double a, double b, double m) { |
6 // TODO(abarth): Would Math.pow be faster? | 6 // TODO(abarth): Would Math.pow be faster? |
7 return 3 * a * (1 - m) * (1 - m) * m + 3 * b * (1 - m) * m * m + m * m * m; | 7 return 3 * a * (1 - m) * (1 - m) * m + 3 * b * (1 - m) * m * m + m * m * m; |
8 } | 8 } |
9 | 9 |
10 const double _kCubicErrorBound = 0.001; | 10 const double _kCubicErrorBound = 0.001; |
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63 } | 63 } |
64 } | 64 } |
65 | 65 |
66 const Linear linear = const Linear(); | 66 const Linear linear = const Linear(); |
67 const Cubic ease = const Cubic(0.25, 0.1, 0.25, 1.0); | 67 const Cubic ease = const Cubic(0.25, 0.1, 0.25, 1.0); |
68 const Cubic easeIn = const Cubic(0.42, 0.0, 1.0, 1.0); | 68 const Cubic easeIn = const Cubic(0.42, 0.0, 1.0, 1.0); |
69 const Cubic easeOut = const Cubic(0.0, 0.0, 0.58, 1.0); | 69 const Cubic easeOut = const Cubic(0.0, 0.0, 0.58, 1.0); |
70 const Cubic easeInOut = const Cubic(0.42, 0.0, 0.58, 1.0); | 70 const Cubic easeInOut = const Cubic(0.42, 0.0, 0.58, 1.0); |
71 const ParabolicRise parabolicRise = const ParabolicRise(); | 71 const ParabolicRise parabolicRise = const ParabolicRise(); |
72 const ParabolicFall parabolicFall = const ParabolicFall(); | 72 const ParabolicFall parabolicFall = const ParabolicFall(); |
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