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-rw-r--r--JavaScriptCore/wtf/Vector3.h138
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diff --git a/JavaScriptCore/wtf/Vector3.h b/JavaScriptCore/wtf/Vector3.h
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-/*
- * Copyright (C) 2010 Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
- * its contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef WTF_Vector3_h
-#define WTF_Vector3_h
-
-#include <math.h>
-
-namespace WTF {
-
-class Vector3 {
-public:
- Vector3()
- : m_x(0.0)
- , m_y(0.0)
- , m_z(0.0)
- {
- }
-
- Vector3(double x, double y, double z)
- : m_x(x)
- , m_y(y)
- , m_z(z)
- {
- }
-
- Vector3(const float p[3])
- : m_x(p[0])
- , m_y(p[1])
- , m_z(p[2])
- {
- }
-
- Vector3(const double p[3])
- : m_x(p[0])
- , m_y(p[1])
- , m_z(p[2])
- {
- }
-
- double abs() const
- {
- return sqrt(m_x * m_x + m_y * m_y + m_z * m_z);
- }
-
- bool isZero() const
- {
- return !m_x && !m_y && !m_z;
- }
-
- void normalize()
- {
- double absValue = abs();
- if (!absValue)
- return;
-
- double k = 1.0 / absValue;
- m_x *= k;
- m_y *= k;
- m_z *= k;
- }
-
- double x() const { return m_x; }
- double y() const { return m_y; }
- double z() const { return m_z; }
-
-private:
- double m_x;
- double m_y;
- double m_z;
-};
-
-inline Vector3 operator+(const Vector3& v1, const Vector3& v2)
-{
- return Vector3(v1.x() + v2.x(), v1.y() + v2.y(), v1.z() + v2.z());
-}
-
-inline Vector3 operator-(const Vector3& v1, const Vector3& v2)
-{
- return Vector3(v1.x() - v2.x(), v1.y() - v2.y(), v1.z() - v2.z());
-}
-
-inline Vector3 operator*(double k, const Vector3& v)
-{
- return Vector3(k * v.x(), k * v.y(), k * v.z());
-}
-
-inline Vector3 operator*(const Vector3& v, double k)
-{
- return Vector3(k * v.x(), k * v.y(), k * v.z());
-}
-
-inline double dot(const Vector3& v1, const Vector3& v2)
-{
- return v1.x() * v2.x() + v1.y() * v2.y() + v1.z() * v2.z();
-}
-
-inline Vector3 cross(const Vector3& v1, const Vector3& v2)
-{
- double x3 = v1.y() * v2.z() - v1.z() * v2.y();
- double y3 = v1.z() * v2.x() - v1.x() * v2.z();
- double z3 = v1.x() * v2.y() - v1.y() * v2.x();
- return Vector3(x3, y3, z3);
-}
-
-inline double distance(const Vector3& v1, const Vector3& v2)
-{
- return (v1 - v2).abs();
-}
-
-} // WTF
-
-#endif // WTF_Vector3_h