EdgeFamily.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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/* EdgeFamily.cc                                               (C) 2000-2025 */
/*                                                                           */
/* Edge family.                                                              */
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#include "arcane/mesh/EdgeFamily.h"
 
#include "arcane/utils/FatalErrorException.h"
 
#include "arcane/core/IMesh.h"
 
#include "arcane/core/MeshUtils.h"
#include "arcane/core/ItemPrinter.h"
#include "arcane/core/Connectivity.h"
#include "arcane/core/NodesOfItemReorderer.h"
 
#include "arcane/mesh/NodeFamily.h"
#include "arcane/mesh/CompactIncrementalItemConnectivity.h"
#include "arcane/mesh/ItemConnectivitySelector.h"
#include "arcane/mesh/AbstractItemFamilyTopologyModifier.h"
#include "arcane/mesh/NewWithLegacyConnectivity.h"
 
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namespace Arcane::mesh
{
 
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class EdgeFamily::TopologyModifier
: public AbstractItemFamilyTopologyModifier
{
 public:
 
  TopologyModifier(EdgeFamily* f)
  : AbstractItemFamilyTopologyModifier(f)
  , m_true_family(f)
  {}
 
 public:
 
  void replaceNode(ItemLocalId item_lid, Integer index, ItemLocalId new_lid) override
  {
    m_true_family->replaceNode(item_lid, index, new_lid);
  }
 
 private:
 
  EdgeFamily* m_true_family;
};
 
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EdgeFamily::
EdgeFamily(IMesh* mesh, const String& name)
: ItemFamily(mesh, IK_Edge, name)
{
  _setTopologyModifier(new TopologyModifier(this));
}
 
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EdgeFamily::
~EdgeFamily()
{
}
 
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void EdgeFamily::
build()
{
  ItemFamily::build();
  ItemTypeMng* itm = m_mesh->itemTypeMng();
  m_edge_type = itm->typeFromId(IT_Line2);
 
  m_node_family = ARCANE_CHECK_POINTER(dynamic_cast<NodeFamily*>(m_mesh->nodeFamily()));
 
  if (m_mesh->useMeshItemFamilyDependencies()) // temporary to fill legacy, even with family dependencies
  {
    m_node_connectivity = dynamic_cast<NewWithLegacyConnectivityType<EdgeFamily, NodeFamily>::type*>(m_mesh->itemFamilyNetwork()->getConnectivity(this, mesh()->nodeFamily(), connectivityName(this, mesh()->nodeFamily())));
    m_face_connectivity = dynamic_cast<NewWithLegacyConnectivityType<EdgeFamily, FaceFamily>::type*>(m_mesh->itemFamilyNetwork()->getConnectivity(this, mesh()->faceFamily(), connectivityName(this, mesh()->faceFamily())));
    m_cell_connectivity = dynamic_cast<NewWithLegacyConnectivityType<EdgeFamily, CellFamily>::type*>(m_mesh->itemFamilyNetwork()->getConnectivity(this, mesh()->cellFamily(), connectivityName(this, mesh()->cellFamily())));
  }
  else {
    m_node_connectivity = new NodeConnectivity(this, mesh()->nodeFamily(), "EdgeNode");
    m_face_connectivity = new FaceConnectivity(this, mesh()->faceFamily(), "EdgeFace");
    m_cell_connectivity = new CellConnectivity(this, mesh()->cellFamily(), "EdgeCell");
  }
 
  _addConnectivitySelector(m_node_connectivity);
  _addConnectivitySelector(m_face_connectivity);
  _addConnectivitySelector(m_cell_connectivity);
 
  _buildConnectivitySelectors();
}
 
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inline void EdgeFamily::
_createOne(ItemInternal* item, Int64 uid)
{
  m_item_internal_list->edges = _itemsInternal();
  _allocateInfos(item, uid, m_edge_type);
  auto nc = m_node_connectivity->trueCustomConnectivity();
  if (nc)
    nc->addConnectedItems(ItemLocalId(item), 2);
}
 
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Item EdgeFamily::
allocOne(Int64 uid, ItemTypeId type_id, MeshInfos& mesh_info)
{
  ARCANE_ASSERT((type_id == IT_Line2), (""));
  ARCANE_UNUSED(type_id);
  ++mesh_info.nbEdge();
  return allocOne(uid);
}
 
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ItemInternal* EdgeFamily::
allocOne(Int64 uid)
{
  ItemInternal* item = _allocOne(uid);
  _createOne(item, uid);
  return item;
}
 
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Item EdgeFamily::
findOrAllocOne(Int64 uid, ItemTypeId type_id, MeshInfos& mesh_info, bool& is_alloc)
{
  ARCANE_ASSERT((type_id == IT_Line2), (""));
  ARCANE_UNUSED(type_id);
  auto edge = findOrAllocOne(uid, is_alloc);
  if (is_alloc)
    ++mesh_info.nbEdge();
  return edge;
}
 
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ItemInternal* EdgeFamily::
findOrAllocOne(Int64 uid, bool& is_alloc)
{
  ItemInternal* item = _findOrAllocOne(uid, is_alloc);
  if (is_alloc)
    _createOne(item, uid);
  return item;
}
 
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void EdgeFamily::
preAllocate(Integer nb_item)
{
  if (m_has_edge) {
    this->_preAllocate(nb_item, true);
  }
}
 
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void EdgeFamily::
computeSynchronizeInfos()
{
  debug() << "Creating the list of ghosts edges";
  ItemFamily::computeSynchronizeInfos();
}
 
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void EdgeFamily::
replaceNode(ItemLocalId edge, Integer index, ItemLocalId node)
{
  if (!Connectivity::hasConnectivity(m_mesh_connectivity, Connectivity::CT_EdgeToNode))
    return;
  m_node_connectivity->replaceItem(edge, index, node);
}
 
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void EdgeFamily::
addCellToEdge(Edge edge, Cell new_cell)
{
  if (!Connectivity::hasConnectivity(m_mesh_connectivity, Connectivity::CT_EdgeToCell))
    return;
  _checkValidSourceTargetItems(edge, new_cell);
  m_cell_connectivity->addConnectedItem(ItemLocalId(edge), ItemLocalId(new_cell));
}
 
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void EdgeFamily::
addFaceToEdge(Edge edge, Face new_face)
{
  if (!Connectivity::hasConnectivity(m_mesh_connectivity, Connectivity::CT_EdgeToFace))
    return;
  _checkValidSourceTargetItems(edge, new_face);
  m_face_connectivity->addConnectedItem(ItemLocalId(edge), ItemLocalId(new_face));
}
 
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inline void EdgeFamily::
_removeEdge(Edge edge)
{
  for (Node node : edge.nodes())
    m_node_family->removeEdgeFromNode(node, edge);
  _removeOne(edge);
  // We do not delete the other relationships here (face->edge,cell->edge)
  // Because the deletion order must always be cell, face, edge, node
  // so node is last and everything is already done
  // Furthermore, this avoids recursion problems
}
 
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void EdgeFamily::
removeCellFromEdge(Edge edge, ItemLocalId cell_to_remove_lid)
{
  if (!Connectivity::hasConnectivity(m_mesh_connectivity, Connectivity::CT_EdgeToCell))
    return;
  _checkValidItem(edge);
  m_cell_connectivity->removeConnectedItem(ItemLocalId(edge), cell_to_remove_lid);
}
 
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void EdgeFamily::
removeFaceFromEdge(ItemLocalId edge, ItemLocalId face_to_remove)
{
  if (!Connectivity::hasConnectivity(m_mesh_connectivity, Connectivity::CT_EdgeToFace))
    return;
  m_face_connectivity->removeConnectedItem(edge, face_to_remove);
}
 
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void EdgeFamily::
removeEdgeIfNotConnected(Edge edge)
{
  _checkValidItem(edge);
  if (!edge.itemBase().isSuppressed() && edge.nbCell() == 0) {
    _removeEdge(edge);
  }
}
 
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void EdgeFamily::
setConnectivity(const Integer c)
{
  m_mesh_connectivity = c;
  m_has_edge = Connectivity::hasConnectivity(m_mesh_connectivity, Connectivity::CT_HasEdge);
  if (m_has_edge) {
    m_node_prealloc = Connectivity::getPrealloc(m_mesh_connectivity, IK_Edge, IK_Node);
    m_face_prealloc = Connectivity::getPrealloc(m_mesh_connectivity, IK_Edge, IK_Face);
    m_cell_prealloc = Connectivity::getPrealloc(m_mesh_connectivity, IK_Edge, IK_Cell);
  }
  debug() << "Family " << name() << " prealloc "
          << m_node_prealloc << " by node, "
          << m_face_prealloc << " by face, "
          << m_cell_prealloc << " by cell.";
}
 
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void EdgeFamily::
reorientEdgesIfNeeded()
{
  info() << "Reorient Edges family=" << fullName();
  // Reorients the edges if necessary. This is the case, for example, if we
  // have changed the numbering of node uniqueIds().
  NodesOfItemReorderer reorderer(mesh()->itemTypeMng());
  SmallArray<Int32> new_nodes_lid;
  IncrementalItemConnectivity* true_connectivity = m_node_connectivity->trueCustomConnectivity();
  ENUMERATE_ (Edge, iedge, allItems()) {
    Edge edge = *iedge;
    ItemTypeId edge_type = edge.itemTypeId();
    Int32 nb_node = edge.nbNode();
    // The first node must be the one with the smallest uniqueId().
    // If the type is ITI_Line3, the third node does not change.
    if (edge_type == ITI_Line2 || edge_type == ITI_Line3) {
      new_nodes_lid.resize(nb_node);
      for (Int32 i = 0; i < nb_node; ++i)
        new_nodes_lid[i] = edge.nodeId(i);
      Node node0 = edge.node(0);
      Node node1 = edge.node(1);
      if (node0.uniqueId() > node1.uniqueId()) {
        std::swap(new_nodes_lid[0], new_nodes_lid[1]);
      }
      true_connectivity->replaceConnectedItems(edge, new_nodes_lid);
    }
    else
      ARCANE_FATAL("Reorientation of edge of type '{0}' not yet supported", edge_type);
  }
  info() << "End Edge Reorientation";
}
 
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} // End namespace Arcane::mesh
 
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