// This file is part of Eigen, a lightweight C++ template library // for linear algebra. // // Copyright (C) 20010-2011 Hauke Heibel <hauke.heibel@gmail.com> // // 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/. #ifndef EIGEN_SPLINES_FWD_H #define EIGEN_SPLINES_FWD_H #include <Eigen/Core> namespace Eigen { template <typename Scalar, int Dim, int Degree = Dynamic> class Spline; template < typename SplineType, int DerivativeOrder = Dynamic > struct SplineTraits {}; /** * \ingroup Splines_Module * \brief Compile-time attributes of the Spline class for Dynamic degree. **/ template <typename _Scalar, int _Dim, int _Degree> struct SplineTraits< Spline<_Scalar, _Dim, _Degree>, Dynamic > { typedef _Scalar Scalar; /*!< The spline curve's scalar type. */ enum { Dimension = _Dim /*!< The spline curve's dimension. */ }; enum { Degree = _Degree /*!< The spline curve's degree. */ }; enum { OrderAtCompileTime = _Degree==Dynamic ? Dynamic : _Degree+1 /*!< The spline curve's order at compile-time. */ }; enum { NumOfDerivativesAtCompileTime = OrderAtCompileTime /*!< The number of derivatives defined for the current spline. */ }; /** \brief The data type used to store non-zero basis functions. */ typedef Array<Scalar,1,OrderAtCompileTime> BasisVectorType; /** \brief The data type used to store the values of the basis function derivatives. */ typedef Array<Scalar,Dynamic,Dynamic,RowMajor,NumOfDerivativesAtCompileTime,OrderAtCompileTime> BasisDerivativeType; /** \brief The data type used to store the spline's derivative values. */ typedef Array<Scalar,Dimension,Dynamic,ColMajor,Dimension,NumOfDerivativesAtCompileTime> DerivativeType; /** \brief The point type the spline is representing. */ typedef Array<Scalar,Dimension,1> PointType; /** \brief The data type used to store knot vectors. */ typedef Array<Scalar,1,Dynamic> KnotVectorType; /** \brief The data type representing the spline's control points. */ typedef Array<Scalar,Dimension,Dynamic> ControlPointVectorType; }; /** * \ingroup Splines_Module * \brief Compile-time attributes of the Spline class for fixed degree. * * The traits class inherits all attributes from the SplineTraits of Dynamic degree. **/ template < typename _Scalar, int _Dim, int _Degree, int _DerivativeOrder > struct SplineTraits< Spline<_Scalar, _Dim, _Degree>, _DerivativeOrder > : public SplineTraits< Spline<_Scalar, _Dim, _Degree> > { enum { OrderAtCompileTime = _Degree==Dynamic ? Dynamic : _Degree+1 /*!< The spline curve's order at compile-time. */ }; enum { NumOfDerivativesAtCompileTime = _DerivativeOrder==Dynamic ? Dynamic : _DerivativeOrder+1 /*!< The number of derivatives defined for the current spline. */ }; /** \brief The data type used to store the values of the basis function derivatives. */ typedef Array<_Scalar,Dynamic,Dynamic,RowMajor,NumOfDerivativesAtCompileTime,OrderAtCompileTime> BasisDerivativeType; /** \brief The data type used to store the spline's derivative values. */ typedef Array<_Scalar,_Dim,Dynamic,ColMajor,_Dim,NumOfDerivativesAtCompileTime> DerivativeType; }; /** \brief 2D float B-spline with dynamic degree. */ typedef Spline<float,2> Spline2f; /** \brief 3D float B-spline with dynamic degree. */ typedef Spline<float,3> Spline3f; /** \brief 2D double B-spline with dynamic degree. */ typedef Spline<double,2> Spline2d; /** \brief 3D double B-spline with dynamic degree. */ typedef Spline<double,3> Spline3d; } #endif // EIGEN_SPLINES_FWD_H