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// This file is part of Eigen, a lightweight C++ template library
// for linear algebra.
//
// Copyright (C) 20010-2011 Hauke Heibel <hauke.heibel@gmail.com>
//
// Eigen is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 3 of the License, or (at your option) any later version.
//
// Alternatively, you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 of
// the License, or (at your option) any later version.
//
// Eigen is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
// FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License or the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License and a copy of the GNU General Public License along with
// Eigen. If not, see <http://www.gnu.org/licenses/>.
#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
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