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| 1 // Copyright 2012 The Chromium Authors. All rights reserved. | 1 // Copyright 2012 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 #include "config.h" | 5 #include "config.h" |
| 6 | 6 |
| 7 #include "cc/math_util.h" | 7 #include "cc/math_util.h" |
| 8 | 8 |
| 9 #include "FloatSize.h" | 9 #include "FloatSize.h" |
| 10 #include "ui/gfx/quad_f.h" | 10 #include "ui/gfx/quad_f.h" |
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| 386 return rad2deg(acosf(dotProduct)); | 386 return rad2deg(acosf(dotProduct)); |
| 387 } | 387 } |
| 388 | 388 |
| 389 FloatSize MathUtil::projectVector(const FloatSize& source, const FloatSize& dest
ination) | 389 FloatSize MathUtil::projectVector(const FloatSize& source, const FloatSize& dest
ination) |
| 390 { | 390 { |
| 391 float sourceDotDestination = source.width() * destination.width() + source.h
eight() * destination.height(); | 391 float sourceDotDestination = source.width() * destination.width() + source.h
eight() * destination.height(); |
| 392 float projectedLength = sourceDotDestination / destination.diagonalLengthSqu
ared(); | 392 float projectedLength = sourceDotDestination / destination.diagonalLengthSqu
ared(); |
| 393 return FloatSize(projectedLength * destination.width(), projectedLength * de
stination.height()); | 393 return FloatSize(projectedLength * destination.width(), projectedLength * de
stination.height()); |
| 394 } | 394 } |
| 395 | 395 |
| 396 } // namespace cc | 396 } // namespace cc |
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