triangle_connectivity.h

//
// Copyright (c) 2014 Limit Point Systems, Inc. 
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//

// Interface for class triangle_connectivity

#ifndef TRIANGLE_CONNECTIVITY_H
#define TRIANGLE_CONNECTIVITY_H

#ifndef SHEAF_DLL_SPEC_H
#include "SheafSystem/sheaf_dll_spec.h"
#endif

#ifndef BLOCK_CONNECTIVITY_H
#include "SheafSystem/block_connectivity.h"
#endif

namespace fiber_bundle
{
  
  using namespace sheaf;

class SHEAF_DLL_SPEC triangle_connectivity : public block_connectivity
{

public:
  // ===========================================================
  // ===========================================================

public:
 
  triangle_connectivity();

  triangle_connectivity(const triangle_connectivity& xother);

  triangle_connectivity(const pod_index_type* xnode_ids, 
            size_type xnode_id_ct, 
            size_type xnode_ct);

  triangle_connectivity(size_type xi_size,
                        size_type xj_size,
                        pod_index_type xstart_id = 0,
                        bool xlower_left_to_upper_right_diagonals = true);

  virtual ~triangle_connectivity();

  enum static_const_int {NODES_PER_ELEMENT = 3}; 
    

protected:

  void create_connectivity(size_type xi_size, 
               size_type xj_size,
               pod_index_type xstart_id,
               bool xlower_left_to_upper_right_diagonals);

private:


  // ===========================================================
  // ===========================================================

public:

protected:

private:

 
  // ===========================================================
  // ===========================================================

public:

  virtual cell_type element_type() const;

protected:

private:

  
  // ===========================================================
  // ===========================================================

public:

  virtual triangle_connectivity* clone() const;

  virtual bool invariant() const;

  virtual bool is_ancestor_of(const any* other) const;

protected:

private:


};
  
} // namespace fiber_bundle

#endif // ifndef TRIANGLE_CONNECTIVITY_H