LagrangeCurve.h

/****************************************************************************** 

  (c) 2004-2014 Scientific Computation Research Center, 
      Rensselaer Polytechnic Institute. All rights reserved.
  
  The LICENSE-SCOREC file included with this distribution describes the terms
  of the SCOREC Non-Commercial License this program is distributed under.
 
*******************************************************************************/
#ifndef LAGRANGECURVE_H
#define LAGRANGECURVE_H

#include <iostream>
#include <vector>
#include <string>
#include "ParametricCurve.h"

class LagrangeCurve1 : public ParametricCurve {
 public:
  LagrangeCurve1(pMeshEnt in_vtx1, pMeshEnt in_vtx2);

  virtual ~LagrangeCurve1() {
  }

 protected:
  int v_eval(Point1d in_xi, Point3d & out_xyz);
  int v_order();
  int v_deriv1(Point1d in_xi, Point3d & out_xyz);
 private:
  pMeshEnt m_vtx_start;
  pMeshEnt m_vtx_end;
  Point3d m_coords[2];
  int m_model_type;
};

class LagrangeCurve2 : public ParametricCurve {

  public:

    LagrangeCurve2(Point3d P0,
                   Point3d P1,
                   Point3d P2);

    ~LagrangeCurve2();

    void get_bezier_edge_ctrl_pt(Point3d & out_bxyz);

  private:

    // default constructors
    LagrangeCurve2() {}
    LagrangeCurve2(LagrangeCurve2 &lc) {}

    //     
    virtual int v_order() {
      return 2;
    }
   
    virtual int v_eval(Point1d in_param, Point3d  & out_xyz);
    virtual int v_deriv1(Point1d in_param, Point3d & out_xyz); 

    // data member
    Point3d * m_interp_pts_;

};

class LagrangeCurve4 : public ParametricCurve {
 public:
  LagrangeCurve4(Point3d P0,
                 Point3d P1,
                 Point3d P2,
                 Point3d P3,
                 Point3d P4);

  ~LagrangeCurve4();

 private:
  // default constructors
  LagrangeCurve4() {}
  LagrangeCurve4(LagrangeCurve4 &lc) {}

  //     
  virtual int v_order() {
    return 4;
  }

  virtual int v_eval(Point1d in_param, Point3d  & out_xyz);
  virtual int v_deriv1(Point1d in_param, Point3d & out_xyz);

  // data member
  Point3d * m_interp_pts_;
};

#endif// LAGRANGECURVE_H