nurbspatch.h

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#ifndef NURBSPATCH_H_INCLUDED
#define NURBSPATCH_H_INCLUDED

/* Mondschein Engine is a fast, powerful, and easy-to-use 3D realtime rendering engine.
 *
 * Copyright (C) 2009-2013 by Andreas Amereller
 * E-Mail: andreas.amereller.dev@googlemail.com
 *
 * This program is free software; 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 3 of the License, or (at your option)
 * any later version.
 *
 * This program 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 General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#include "types.h"
#include "eigen3.h"

#include <cmath>

namespace mondschein
{
  namespace math
  {
    class NURBSpatch
    {
    private:
      uint32 degree;
      std::vector<NURBScurve_p> curves;
      std::vector<float64> knots;
      virtual void uniform_knots();
      virtual void chord_knots();

    public:
      explicit NURBSpatch();
      explicit NURBSpatch(uint32 _d,const std::vector<NURBScurve_p> &_c);
      explicit NURBSpatch(NURBSpatch_c _p);
      virtual ~NURBSpatch();
      virtual NURBSpatch &operator=(NURBSpatch_c _p);

      virtual Eigen::Vector3d operator()(float64 _t,float64 _u) const;

      virtual void set_degree(uint32 _d);

      virtual uint32 get_degree() const;

      virtual void set_curves(const std::vector<NURBScurve_p> &_c);

      virtual std::vector<NURBScurve_p> get_curves() const;

      virtual void calc_knots(bool _cl);

      virtual Eigen::Vector3d get_point(float64 _t,float64 _u) const;

      virtual scene::Mesh_p generate_mesh(float64 _t,float64 _u,normal_calculation_e _normals) const;
    };
  }
}

#endif // NURBSPATCH_H_INCLUDED