SplineFwd.h

// This file is part of Eigen, a lightweight C++ template library
// for linear algebra.
//
// Copyright (C) 2010-2011 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/.
// SPDX-License-Identifier: MPL-2.0
 
#ifndef EIGEN_SPLINES_FWD_H
#define EIGEN_SPLINES_FWD_H
 
// IWYU pragma: private
#include "./InternalHeaderCheck.h"
#include "../../../../Eigen/Core"
 
namespace Eigen {
template <typename Scalar, int Dim, int Degree = Dynamic>
class Spline;
 
template <typename SplineType, int DerivativeOrder = Dynamic>
struct SplineTraits {};

template <typename Scalar_, int Dim_, int Degree_>
struct SplineTraits<Spline<Scalar_, Dim_, Degree_>, Dynamic> {
  typedef Scalar_ Scalar; 
  enum { Dimension = Dim_  };
  enum { Degree = Degree_  };
 
  enum {
    OrderAtCompileTime = Degree_ == Dynamic ? Dynamic : Degree_ + 1 
  };
  enum {
    NumOfDerivativesAtCompileTime = OrderAtCompileTime 
  };
 
  enum { DerivativeMemoryLayout = Dimension == 1 ? RowMajor : ColMajor  };

  typedef Array<Scalar, 1, OrderAtCompileTime> BasisVectorType;

  typedef Array<Scalar, Dynamic, Dynamic, RowMajor, NumOfDerivativesAtCompileTime, OrderAtCompileTime>
      BasisDerivativeType;

  typedef Array<Scalar, Dimension, Dynamic, DerivativeMemoryLayout, Dimension, NumOfDerivativesAtCompileTime>
      DerivativeType;

  typedef Array<Scalar, Dimension, 1> PointType;

  typedef Array<Scalar, 1, Dynamic> KnotVectorType;

  typedef Array<Scalar, 1, Dynamic> ParameterVectorType;

  typedef Array<Scalar, Dimension, Dynamic> ControlPointVectorType;
};

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 
  };
  enum {
    NumOfDerivativesAtCompileTime =
        _DerivativeOrder == Dynamic
            ? Dynamic
            : _DerivativeOrder + 1 
  };
 
  enum { DerivativeMemoryLayout = Dim_ == 1 ? RowMajor : ColMajor  };

  typedef Array<Scalar_, Dynamic, Dynamic, RowMajor, NumOfDerivativesAtCompileTime, OrderAtCompileTime>
      BasisDerivativeType;

  typedef Array<Scalar_, Dim_, Dynamic, DerivativeMemoryLayout, Dim_, NumOfDerivativesAtCompileTime> DerivativeType;
};

typedef Spline<float, 2> Spline2f;

typedef Spline<float, 3> Spline3f;

typedef Spline<double, 2> Spline2d;

typedef Spline<double, 3> Spline3d;
}  // namespace Eigen
 
#endif  // EIGEN_SPLINES_FWD_H