81 lines
1.8 KiB
C
81 lines
1.8 KiB
C
/****************************************************************************
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**
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** Copyright (C) 2013 Digia Plc.
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** Contact: http://www.qt-project.org/legal
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**
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** $QT_BEGIN_LICENSE:GPL$
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef VMATH_H
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#define VMATH_H
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#if QT_VERSION >= QT_VERSION_CHECK(5, 1, 0)
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#include <QtMath>
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#else
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#include "qmath.h"
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Q_DECL_CONSTEXPR inline float qDegreesToRadians(float degrees)
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{
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return degrees * float(M_PI/180);
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}
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Q_DECL_CONSTEXPR inline double qDegreesToRadians(double degrees)
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{
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return degrees * (M_PI / 180);
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}
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Q_DECL_CONSTEXPR inline float qRadiansToDegrees(float radians)
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{
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return radians * float(180/M_PI);
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}
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Q_DECL_CONSTEXPR inline double qRadiansToDegrees(double radians)
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{
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return radians * (180 / M_PI);
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}
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#endif // QT_VERSION < QT_VERSION_CHECK(5, 1, 0)
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#ifndef M_2PI
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#define M_2PI (6.28318530717958647692) /* 2*pi */
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#endif
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#ifndef M_3PI_4
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#define M_3PI_4 (2.35619449019234492884) /* 3*pi/4 */
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#endif
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#ifndef M_3PI_8
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#define M_3PI_8 (1.17809724509617246442) /* 3*pi/8 */
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#endif
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#ifndef M_PI_8
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#define M_PI_8 (0.39269908169872415480) /* pi/8 */
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#endif
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#ifndef M_4_PI
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#define M_4_PI (1.27323954473516268615) /* 4/pi */
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#endif
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#ifndef M_1_SQRT2
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#define M_1_SQRT2 (0.70710678118654752440) /* 1/sqrt(2) */
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#endif
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#ifndef M_EULER
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#define M_EULER (0.57721566490153286060)
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#endif
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#endif // VMATH_H
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