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93 lines
4.2 KiB
93 lines
4.2 KiB
// This file is part of Eigen, a lightweight C++ template library
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// for linear algebra.
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//
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// Copyright (C) 20010-2011 Hauke Heibel <hauke.heibel@gmail.com>
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//
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// This Source Code Form is subject to the terms of the Mozilla
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// Public License v. 2.0. If a copy of the MPL was not distributed
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// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
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#ifndef EIGEN_SPLINES_FWD_H
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#define EIGEN_SPLINES_FWD_H
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#include <Eigen/Core>
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namespace Eigen
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{
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template <typename Scalar, int Dim, int Degree = Dynamic> class Spline;
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template < typename SplineType, int DerivativeOrder = Dynamic > struct SplineTraits {};
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/**
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* \ingroup Splines_Module
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* \brief Compile-time attributes of the Spline class for Dynamic degree.
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**/
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template <typename _Scalar, int _Dim, int _Degree>
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struct SplineTraits< Spline<_Scalar, _Dim, _Degree>, Dynamic >
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{
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typedef _Scalar Scalar; /*!< The spline curve's scalar type. */
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enum { Dimension = _Dim /*!< The spline curve's dimension. */ };
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enum { Degree = _Degree /*!< The spline curve's degree. */ };
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enum { OrderAtCompileTime = _Degree==Dynamic ? Dynamic : _Degree+1 /*!< The spline curve's order at compile-time. */ };
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enum { NumOfDerivativesAtCompileTime = OrderAtCompileTime /*!< The number of derivatives defined for the current spline. */ };
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enum { DerivativeMemoryLayout = Dimension==1 ? RowMajor : ColMajor /*!< The derivative type's memory layout. */ };
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/** \brief The data type used to store non-zero basis functions. */
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typedef Array<Scalar,1,OrderAtCompileTime> BasisVectorType;
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/** \brief The data type used to store the values of the basis function derivatives. */
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typedef Array<Scalar,Dynamic,Dynamic,RowMajor,NumOfDerivativesAtCompileTime,OrderAtCompileTime> BasisDerivativeType;
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/** \brief The data type used to store the spline's derivative values. */
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typedef Array<Scalar,Dimension,Dynamic,DerivativeMemoryLayout,Dimension,NumOfDerivativesAtCompileTime> DerivativeType;
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/** \brief The point type the spline is representing. */
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typedef Array<Scalar,Dimension,1> PointType;
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/** \brief The data type used to store knot vectors. */
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typedef Array<Scalar,1,Dynamic> KnotVectorType;
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/** \brief The data type used to store parameter vectors. */
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typedef Array<Scalar,1,Dynamic> ParameterVectorType;
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/** \brief The data type representing the spline's control points. */
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typedef Array<Scalar,Dimension,Dynamic> ControlPointVectorType;
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};
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/**
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* \ingroup Splines_Module
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* \brief Compile-time attributes of the Spline class for fixed degree.
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*
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* The traits class inherits all attributes from the SplineTraits of Dynamic degree.
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**/
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template < typename _Scalar, int _Dim, int _Degree, int _DerivativeOrder >
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struct SplineTraits< Spline<_Scalar, _Dim, _Degree>, _DerivativeOrder > : public SplineTraits< Spline<_Scalar, _Dim, _Degree> >
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{
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enum { OrderAtCompileTime = _Degree==Dynamic ? Dynamic : _Degree+1 /*!< The spline curve's order at compile-time. */ };
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enum { NumOfDerivativesAtCompileTime = _DerivativeOrder==Dynamic ? Dynamic : _DerivativeOrder+1 /*!< The number of derivatives defined for the current spline. */ };
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enum { DerivativeMemoryLayout = _Dim==1 ? RowMajor : ColMajor /*!< The derivative type's memory layout. */ };
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/** \brief The data type used to store the values of the basis function derivatives. */
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typedef Array<_Scalar,Dynamic,Dynamic,RowMajor,NumOfDerivativesAtCompileTime,OrderAtCompileTime> BasisDerivativeType;
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/** \brief The data type used to store the spline's derivative values. */
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typedef Array<_Scalar,_Dim,Dynamic,DerivativeMemoryLayout,_Dim,NumOfDerivativesAtCompileTime> DerivativeType;
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};
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/** \brief 2D float B-spline with dynamic degree. */
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typedef Spline<float,2> Spline2f;
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/** \brief 3D float B-spline with dynamic degree. */
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typedef Spline<float,3> Spline3f;
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/** \brief 2D double B-spline with dynamic degree. */
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typedef Spline<double,2> Spline2d;
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/** \brief 3D double B-spline with dynamic degree. */
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typedef Spline<double,3> Spline3d;
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}
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#endif // EIGEN_SPLINES_FWD_H
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