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-rw-r--r--Eigen/src/Eigen2Support/Geometry/Rotation2D.h145
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diff --git a/Eigen/src/Eigen2Support/Geometry/Rotation2D.h b/Eigen/src/Eigen2Support/Geometry/Rotation2D.h
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--- a/Eigen/src/Eigen2Support/Geometry/Rotation2D.h
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@@ -1,145 +0,0 @@
-// This file is part of Eigen, a lightweight C++ template library
-// for linear algebra.
-//
-// Copyright (C) 2008 Gael Guennebaud <g.gael@free.fr>
-//
-// This Source Code Form is subject to the terms of the Mozilla
-// Public License v. 2.0. If a copy of the MPL was not distributed
-// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-// no include guard, we'll include this twice from All.h from Eigen2Support, and it's internal anyway
-
-namespace Eigen {
-
-/** \geometry_module \ingroup Geometry_Module
- *
- * \class Rotation2D
- *
- * \brief Represents a rotation/orientation in a 2 dimensional space.
- *
- * \param _Scalar the scalar type, i.e., the type of the coefficients
- *
- * This class is equivalent to a single scalar representing a counter clock wise rotation
- * as a single angle in radian. It provides some additional features such as the automatic
- * conversion from/to a 2x2 rotation matrix. Moreover this class aims to provide a similar
- * interface to Quaternion in order to facilitate the writing of generic algorithms
- * dealing with rotations.
- *
- * \sa class Quaternion, class Transform
- */
-template<typename _Scalar> struct ei_traits<Rotation2D<_Scalar> >
-{
- typedef _Scalar Scalar;
-};
-
-template<typename _Scalar>
-class Rotation2D : public RotationBase<Rotation2D<_Scalar>,2>
-{
- typedef RotationBase<Rotation2D<_Scalar>,2> Base;
-
-public:
-
- using Base::operator*;
-
- enum { Dim = 2 };
- /** the scalar type of the coefficients */
- typedef _Scalar Scalar;
- typedef Matrix<Scalar,2,1> Vector2;
- typedef Matrix<Scalar,2,2> Matrix2;
-
-protected:
-
- Scalar m_angle;
-
-public:
-
- /** Construct a 2D counter clock wise rotation from the angle \a a in radian. */
- inline Rotation2D(Scalar a) : m_angle(a) {}
-
- /** \returns the rotation angle */
- inline Scalar angle() const { return m_angle; }
-
- /** \returns a read-write reference to the rotation angle */
- inline Scalar& angle() { return m_angle; }
-
- /** \returns the inverse rotation */
- inline Rotation2D inverse() const { return -m_angle; }
-
- /** Concatenates two rotations */
- inline Rotation2D operator*(const Rotation2D& other) const
- { return m_angle + other.m_angle; }
-
- /** Concatenates two rotations */
- inline Rotation2D& operator*=(const Rotation2D& other)
- { return m_angle += other.m_angle; return *this; }
-
- /** Applies the rotation to a 2D vector */
- Vector2 operator* (const Vector2& vec) const
- { return toRotationMatrix() * vec; }
-
- template<typename Derived>
- Rotation2D& fromRotationMatrix(const MatrixBase<Derived>& m);
- Matrix2 toRotationMatrix(void) const;
-
- /** \returns the spherical interpolation between \c *this and \a other using
- * parameter \a t. It is in fact equivalent to a linear interpolation.
- */
- inline Rotation2D slerp(Scalar t, const Rotation2D& other) const
- { return m_angle * (1-t) + other.angle() * t; }
-
- /** \returns \c *this with scalar type casted to \a NewScalarType
- *
- * Note that if \a NewScalarType is equal to the current scalar type of \c *this
- * then this function smartly returns a const reference to \c *this.
- */
- template<typename NewScalarType>
- inline typename internal::cast_return_type<Rotation2D,Rotation2D<NewScalarType> >::type cast() const
- { return typename internal::cast_return_type<Rotation2D,Rotation2D<NewScalarType> >::type(*this); }
-
- /** Copy constructor with scalar type conversion */
- template<typename OtherScalarType>
- inline explicit Rotation2D(const Rotation2D<OtherScalarType>& other)
- {
- m_angle = Scalar(other.angle());
- }
-
- /** \returns \c true if \c *this is approximately equal to \a other, within the precision
- * determined by \a prec.
- *
- * \sa MatrixBase::isApprox() */
- bool isApprox(const Rotation2D& other, typename NumTraits<Scalar>::Real prec = precision<Scalar>()) const
- { return ei_isApprox(m_angle,other.m_angle, prec); }
-};
-
-/** \ingroup Geometry_Module
- * single precision 2D rotation type */
-typedef Rotation2D<float> Rotation2Df;
-/** \ingroup Geometry_Module
- * double precision 2D rotation type */
-typedef Rotation2D<double> Rotation2Dd;
-
-/** Set \c *this from a 2x2 rotation matrix \a mat.
- * In other words, this function extract the rotation angle
- * from the rotation matrix.
- */
-template<typename Scalar>
-template<typename Derived>
-Rotation2D<Scalar>& Rotation2D<Scalar>::fromRotationMatrix(const MatrixBase<Derived>& mat)
-{
- EIGEN_STATIC_ASSERT(Derived::RowsAtCompileTime==2 && Derived::ColsAtCompileTime==2,YOU_MADE_A_PROGRAMMING_MISTAKE)
- m_angle = ei_atan2(mat.coeff(1,0), mat.coeff(0,0));
- return *this;
-}
-
-/** Constructs and \returns an equivalent 2x2 rotation matrix.
- */
-template<typename Scalar>
-typename Rotation2D<Scalar>::Matrix2
-Rotation2D<Scalar>::toRotationMatrix(void) const
-{
- Scalar sinA = ei_sin(m_angle);
- Scalar cosA = ei_cos(m_angle);
- return (Matrix2() << cosA, -sinA, sinA, cosA).finished();
-}
-
-} // end namespace Eigen