CrvTri4G1.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 CURVEMESHADAPT_CRVTRI4G1_H
#define CURVEMESHADAPT_CRVTRI4G1_H

#include "CrvFace.h"
#include "curveMesh.h"
#include "GregorySurface.h"

class CrvTri4G1 : public CrvFace {
  public:
    CrvTri4G1(pMeshFace in_face);

    CrvTri4G1(VtxPtrVec in_vert_vec);

    ~CrvTri4G1();

    GregorySurface * get_face_shape() { return m_face_shape_; }

    int eval(double u, double v, double * pos);

    int eval_deriv1(double in_xi_1,
                    double in_xi_2,
                    Point3d & out_dxyz_dxi1,
                    Point3d & out_dxyz_dxi2);

    int save_face_ctrl_pts(curveMesh * in_crv_mesh);

    int v_data_size() const
    {
      return 6*3;
    }

    std::string v_tag_name() const
    {
      return std::string( "gregory_tri_4_tag" );
    }

    void setup_edges();
 protected:
    GregorySurface * m_face_shape_;

    /*  edge 0 -- vertex 0, 1
        edge 1 -- vertex 1, 2
        edge 2 -- vertex 2, 0
     */
    std::vector<pEdge> m_vec_edges;
};
#endif  // CURVEMESHADAPT_CRVTRI4G1_H