UnstructuredMeshConnectivity.cc

// -*- tab-width: 2; indent-tabs-mode: nil; coding: utf-8-with-signature -*-
//-----------------------------------------------------------------------------
// Copyright 2000-2026 CEA (www.cea.fr) IFPEN (www.ifpenergiesnouvelles.com)
// See the top-level COPYRIGHT file for details.
// SPDX-License-Identifier: Apache-2.0
//-----------------------------------------------------------------------------
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/* UnstructuredMeshConnectivity.cc                             (C) 2000-2023 */
/*                                                                           */
/* Unstructured mesh connectivity information.                               */
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#include "arcane/core/UnstructuredMeshConnectivity.h"
 
#include "arcane/utils/FatalErrorException.h"
 
#include "arcane/core/IMesh.h"
#include "arcane/core/IItemFamily.h"
#include "arcane/core/internal/IItemFamilyInternal.h"
 
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namespace Arcane
{
 
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namespace
{
 
  inline constexpr Int32 _IDX(Node*)
  {
    return ItemInternalConnectivityList::NODE_IDX;
  }
  inline constexpr Int32 _IDX(Edge*)
  {
    return ItemInternalConnectivityList::EDGE_IDX;
  }
  inline constexpr Int32 _IDX(Face*)
  {
    return ItemInternalConnectivityList::FACE_IDX;
  }
  inline constexpr Int32 _IDX(Cell*)
  {
    return ItemInternalConnectivityList::CELL_IDX;
  }
 
  template <typename ConnectivityView> inline void
  _internalInit(ConnectivityView& cview, IMesh* mesh)
  {
    using ItemType1 = typename ConnectivityView::ItemType1Type;
    using ItemType2 = typename ConnectivityView::ItemType2Type;
 
    eItemKind ik1 = ItemTraitsT<ItemType1>::kind();
    eItemKind ik2 = ItemTraitsT<ItemType2>::kind();
 
    IItemFamily* family = mesh->itemFamily(ik1);
    ItemInternalConnectivityList* clist = family->_internalApi()->unstructuredItemInternalConnectivityList();
    auto item_index_type = _IDX((ItemType2*)nullptr);
    auto container_view = clist->containerView(item_index_type);
    cview = IndexedItemConnectivityViewBase(container_view, ik1, ik2);
  }
} // namespace
 
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void UnstructuredMeshConnectivityView::
setMesh(IMesh* mesh)
{
  m_mesh = mesh;
 
  _internalInit(m_cell_node_connectivity_view, mesh);
  _internalInit(m_cell_edge_connectivity_view, mesh);
  _internalInit(m_cell_face_connectivity_view, mesh);
 
  _internalInit(m_face_node_connectivity_view, mesh);
  _internalInit(m_face_edge_connectivity_view, mesh);
  _internalInit(m_face_cell_connectivity_view, mesh);
 
  _internalInit(m_node_edge_connectivity_view, mesh);
  _internalInit(m_node_face_connectivity_view, mesh);
  _internalInit(m_node_cell_connectivity_view, mesh);
 
  _internalInit(m_edge_node_connectivity_view, mesh);
  _internalInit(m_edge_face_connectivity_view, mesh);
  _internalInit(m_edge_cell_connectivity_view, mesh);
}
 
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void UnstructuredMeshConnectivityView::
_checkValid() const
{
  if (!m_mesh)
    ARCANE_FATAL("Can not use unitialised UnstructuredMeshConnectivityView.\n"
                 "Call the method setMesh() before");
}
 
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} // End namespace Arcane
 
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