BaseDecimaterT.hh

Go to the documentation of this file.

/* ========================================================================= *
 *                                                                           *
 *                               OpenMesh                                    *
 *           Copyright (c) 2001-2025, RWTH-Aachen University                 *
 *           Department of Computer Graphics and Multimedia                  *
 *                          All rights reserved.                             *
 *                            www.openmesh.org                               *
 *                                                                           *
 *---------------------------------------------------------------------------*
 * This file is part of OpenMesh.                                            *
 *---------------------------------------------------------------------------*
 *                                                                           *
 * Redistribution and use in source and binary forms, with or without        *
 * modification, are permitted provided that the following conditions        *
 * are met:                                                                  *
 *                                                                           *
 * 1. Redistributions of source code must retain the above copyright notice, *
 *    this list of conditions and the following disclaimer.                  *
 *                                                                           *
 * 2. Redistributions in binary form must reproduce the above copyright      *
 *    notice, this list of conditions and the following disclaimer in the    *
 *    documentation and/or other materials provided with the distribution.   *
 *                                                                           *
 * 3. Neither the name of the copyright holder nor the names of its          *
 *    contributors may be used to endorse or promote products derived from   *
 *    this software without specific prior written permission.               *
 *                                                                           *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS       *
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED *
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A           *
 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER *
 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,  *
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,       *
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR        *
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF    *
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING      *
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS        *
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.              *
 *                                                                           *
 * ========================================================================= */
 
 
 
//=============================================================================
//
//  CLASS McDecimaterT
//
//=============================================================================
 
#ifndef OPENMESH_BASE_DECIMATER_DECIMATERT_HH
#define OPENMESH_BASE_DECIMATER_DECIMATERT_HH
 
 
//== INCLUDES =================================================================
 
#include <memory>
 
#include <OpenMesh/Core/Utils/Property.hh>
#include <OpenMesh/Tools/Decimater/ModBaseT.hh>
#include <OpenMesh/Core/Utils/Noncopyable.hh>
#include <OpenMesh/Tools/Decimater/Observer.hh>
 
 
 
//== NAMESPACE ================================================================
 
namespace OpenMesh  {
namespace Decimater {
 
 
//== CLASS DEFINITION =========================================================
 
 
class BaseDecimaterModule
{
};
 
template < typename MeshT >
class BaseDecimaterT : private Utils::Noncopyable
{
public: //-------------------------------------------------------- public types
 
  typedef BaseDecimaterT< MeshT >       Self;
  typedef MeshT                         Mesh;
  typedef CollapseInfoT<MeshT>          CollapseInfo;
  typedef ModBaseT<MeshT>                Module;
  typedef std::vector< Module* >        ModuleList;
  typedef typename ModuleList::iterator ModuleListIterator;
 
public: //------------------------------------------------------ public methods
  explicit BaseDecimaterT(Mesh& _mesh);
  virtual ~BaseDecimaterT();
 
  bool initialize();
 
 
  bool is_initialized() const { return initialized_; }
 
 
  void info( std::ostream& _os );
 
public: //--------------------------------------------------- module management
 
  void set_observer(Observer* _o)
  {
      observer_ = _o;
  }
 
  Observer* observer()
  {
      return observer_;
  }
 
  Mesh& mesh() { return mesh_; }
 
  template < typename _Module >
  bool add( ModHandleT<_Module>& _mh )
  {
    if (_mh.is_valid())
      return false;
 
    _mh.init( new _Module(mesh()) );
    all_modules_.push_back( _mh.module() );
 
    set_uninitialized();
 
    return true;
  }
 
 
  template < typename _Module >
  bool remove( ModHandleT<_Module>& _mh )
  {
    if (!_mh.is_valid())
      return false;
 
    typename ModuleList::iterator it = std::find(all_modules_.begin(),
                                                 all_modules_.end(),
                                                 _mh.module() );
 
    if ( it == all_modules_.end() ) // module not found
      return false;
 
    delete *it;
    all_modules_.erase( it ); // finally remove from list
    _mh.clear();
 
    set_uninitialized();
    return true;
  }
 
 
  template < typename Module >
  Module& module( ModHandleT<Module>& _mh )
  {
    assert( _mh.is_valid() );
    return *_mh.module();
  }
 
 
protected:
 
  bool notify_observer(size_t _n_collapses)
  {
    if (observer() && _n_collapses % observer()->get_interval() == 0)
    {
      observer()->notify(_n_collapses);
      return !observer()->abort();
    }
    return true;
  }
 
  void set_uninitialized() {
    initialized_ = false;
    cmodule_ = 0;
    bmodules_.clear();
  }
 
  void update_modules(CollapseInfo& _ci)
  {
    typename ModuleList::iterator m_it, m_end = bmodules_.end();
    for (m_it = bmodules_.begin(); m_it != m_end; ++m_it)
      (*m_it)->postprocess_collapse(_ci);
    cmodule_->postprocess_collapse(_ci);
  }
 
 
protected: //---------------------------------------------------- private methods
 
  bool is_collapse_legal(const CollapseInfo& _ci);
 
  float collapse_priority(const CollapseInfo& _ci);
 
  void preprocess_collapse(CollapseInfo& _ci);
 
  void postprocess_collapse(CollapseInfo& _ci);
 
  void set_error_tolerance_factor(double _factor);
 
  void reset(){ initialized_ = false; };
 
 
private: //------------------------------------------------------- private data
 
 
  Mesh&      mesh_;
 
  ModuleList bmodules_;
 
  Module*    cmodule_;
 
  ModuleList all_modules_;
 
  bool       initialized_;
 
  Observer* observer_;
 
};
 
//=============================================================================
} // END_NS_DECIMATER
} // END_NS_OPENMESH
//=============================================================================
#if defined(OM_INCLUDE_TEMPLATES) && !defined(OPENMESH_BASE_DECIMATER_DECIMATERT_CC)
#define OPENMESH_BASE_DECIMATER_TEMPLATES
#include "BaseDecimaterT_impl.hh"
#endif
//=============================================================================
#endif // OPENMESH_BASE_DECIMATER_DECIMATERT_HH defined
//=============================================================================