MoFEM::MeshRefinement Struct Reference

Mesh refinement interface. More...

#include "src/interfaces/MeshRefinement.hpp"

Inheritance diagram for MoFEM::MeshRefinement:

Collaboration diagram for MoFEM::MeshRefinement:

Classes
struct	SetParent

Public Member Functions
MoFEMErrorCode	query_interface (boost::typeindex::type_index type_index, UnknownInterface **iface) const
	MeshRefinement (const MoFEM::Core &core)
virtual	~MeshRefinement ()=default
MoFEMErrorCode	addVerticesInTheMiddleOfEdges (const EntityHandle meshset, const BitRefLevel &bit, const bool recursive=false, int verb=QUIET, EntityHandle start_v=0)
	make vertices in the middle of edges in meshset and add them to refinement levels defined by bit
MoFEMErrorCode	addVerticesInTheMiddleOfEdges (const Range &edges, const BitRefLevel &bit, int verb=QUIET, EntityHandle start_v=0)
	make vertices in the middle of edges in meshset and add them to Refinement levels defined by bit
MoFEMErrorCode	refineTets (const EntityHandle meshset, const BitRefLevel &bit, int verb=QUIET, const bool debug=false)
	refine TET in the meshset
MoFEMErrorCode	refineTets (const Range &tets, const BitRefLevel &bit, int verb=QUIET, const bool debug=false)
	refine TET in the meshset
MoFEMErrorCode	refineTetsHangingNodes (const Range &tets, const BitRefLevel &bit, int verb=QUIET, const bool debug=false)
	refine TET in the meshset
MoFEMErrorCode	refineTetsHangingNodes (const EntityHandle meshset, const BitRefLevel &bit, int verb=QUIET, const bool debug=false)
	refine TET in the meshset
MoFEMErrorCode	refinePrisms (const EntityHandle meshset, const BitRefLevel &bit, int verb=QUIET)
	refine PRISM in the meshset
MoFEMErrorCode	refineMeshset (const EntityHandle meshset, const BitRefLevel &bit, const bool recursive=false, int verb=QUIET)
	refine meshset, i.e. add child of refined entities to meshset
MoFEMErrorCode	refineTris (const EntityHandle meshset, const BitRefLevel &bit, int verb=QUIET, const bool debug=false)
	refine triangles in the meshset
MoFEMErrorCode	refineTris (const Range &tris, const BitRefLevel &bit, int verb=QUIET, const bool debug=false)
	refine TRI in the meshset
MoFEMErrorCode	refineTrisHangingNodes (const EntityHandle meshset, const BitRefLevel &bit, int verb=QUIET, const bool debug=false)
	refine TRI in the meshset
MoFEMErrorCode	refineTrisHangingNodes (const Range &tris, const BitRefLevel &bit, int verb=QUIET, const bool debug=false)
	refine TRI in the meshset
Public Member Functions inherited from MoFEM::UnknownInterface
template<class IFACE >
MoFEMErrorCode	registerInterface (bool error_if_registration_failed=true)
	Register interface.
template<class IFACE >
MoFEMErrorCode	getInterface (IFACE *&iface) const
	Get interface reference to pointer of interface.
template<class IFACE >
MoFEMErrorCode	getInterface (IFACE **const iface) const
	Get interface pointer to pointer of interface.
template<class IFACE , typename boost::enable_if< boost::is_pointer< IFACE >, int >::type = 0>
IFACE	getInterface () const
	Get interface pointer to pointer of interface.
template<class IFACE , typename boost::enable_if< boost::is_reference< IFACE >, int >::type = 0>
IFACE	getInterface () const
	Get reference to interface.
template<class IFACE >
IFACE *	getInterface () const
	Function returning pointer to interface.
virtual	~UnknownInterface ()=default

Public Attributes
MoFEM::Core &	cOre

Private Types
using	SetEdgeBitsFun
	Functions setting edges for refinemnt on enetity level.

Private Member Functions
MoFEMErrorCode	refineTets (const Range &tets, const BitRefLevel &bit, SetEdgeBitsFun set_edge_bits, int verb, const bool debug)
	refine TET in the meshset
MoFEMErrorCode	refineTris (const Range &tris, const BitRefLevel &bit, SetEdgeBitsFun set_edge_bits, int verb, const bool debug)

Additional Inherited Members
Static Public Member Functions inherited from MoFEM::UnknownInterface
static MoFEMErrorCode	getLibVersion (Version &version)
	Get library version.
static MoFEMErrorCode	getFileVersion (moab::Interface &moab, Version &version)
	Get database major version.
static MoFEMErrorCode	setFileVersion (moab::Interface &moab, Version version=Version(MoFEM_VERSION_MAJOR, MoFEM_VERSION_MINOR, MoFEM_VERSION_BUILD))
	Get database major version.
static MoFEMErrorCode	getInterfaceVersion (Version &version)
	Get database major version.

Detailed Description

Mesh refinement interface.

Currently this class is abstraction to Core interface. In future should be outsourced as independent interface.

Bug

Not working on partitioned meshes

Need to be implemented as a stand alone interface not as a part of core structure which should be only basic database

If outsourced, class member functions should follow name convention

Spelling mistakes will be corrected with names fix to follow name convetion

Examples

EshelbianPlasticity.cpp, bernstein_bezier_generate_base.cpp, child_and_parent.cpp, hanging_node_approx.cpp, and split_sideset.cpp.

Definition at line 26 of file MeshRefinement.hpp.

Member Typedef Documentation

SetEdgeBitsFun

using MoFEM::MeshRefinement::SetEdgeBitsFun

private

Initial value:

 boost::function<
 
      MoFEMErrorCode(moab::Interface &moab,
                     RefEntity_multiIndex_view_by_ordered_parent_entity
                         &ref_parent_ents_view,
                     EntityHandle tet, BitRefEdges &parent_edges_bit,
                     EntityHandle *edge_new_nodes, int *split_edges
 
                     )>

Functions setting edges for refinemnt on enetity level.

Definition at line 195 of file MeshRefinement.hpp.

Constructor & Destructor Documentation

MeshRefinement()

MoFEM::MeshRefinement::MeshRefinement

(

const MoFEM::Core &

core

)

Definition at line 39 of file MeshRefinement.cpp.

    : cOre(const_cast<Core &>(core)) {}

~MeshRefinement()

virtual MoFEM::MeshRefinement::~MeshRefinement ( )

virtualdefault

Member Function Documentation

addVerticesInTheMiddleOfEdges() [1/2]

MoFEMErrorCode MoFEM::MeshRefinement::addVerticesInTheMiddleOfEdges	(	const EntityHandle	meshset,
		const BitRefLevel &	bit,
		const bool	recursive = false,
		int	verb = QUIET,
		EntityHandle	start_v = 0 )

make vertices in the middle of edges in meshset and add them to refinement levels defined by bit

Takes entities fromm meshsets and queried recursively (get entities from meshsets in meshsets, usually have to be used for CUBIT meshset). If meshset does not contain any edges, get entities in dimension 3 and get edge adjacencies.

Parameters

EntityHandle	meshset
BitRefLevel	bitLevel
recursive	If true, meshsets containing meshsets are queried recursively. Returns the contents of meshsets, but not the meshsets themselves if true.

Examples

bernstein_bezier_generate_base.cpp.

Definition at line 42 of file MeshRefinement.cpp.

                                    {
  Interface &m_field = cOre;
  moab::Interface &moab = m_field.get_moab();
  MoFEMFunctionBegin;
  Range edges;
  CHKERR moab.get_entities_by_type(meshset, MBEDGE, edges, recursive);
  if (edges.empty()) {
    Range tets;
    CHKERR moab.get_entities_by_type(meshset, MBTET, tets, recursive);
    CHKERR moab.get_adjacencies(tets, 1, true, edges, moab::Interface::UNION);
    if (tets.empty()) {
      Range prisms;
      CHKERR moab.get_entities_by_type(meshset, MBPRISM, prisms, recursive);
      for (Range::iterator pit = prisms.begin(); pit != prisms.end(); pit++) {
        const EntityHandle *conn;
        int num_nodes;
        CHKERR moab.get_connectivity(*pit, conn, num_nodes, true);
        assert(num_nodes == 6);
        //
        Range edge;
        CHKERR moab.get_adjacencies(&conn[0], 2, 1, true, edge);
        assert(edge.size() == 1);
        edges.insert(edge[0]);
        edge.clear();
        CHKERR moab.get_adjacencies(&conn[1], 2, 1, true, edge);
        assert(edge.size() == 1);
        edges.insert(edge[0]);
        EntityHandle conn_edge2[] = {conn[2], conn[0]};
        edge.clear();
        CHKERR moab.get_adjacencies(conn_edge2, 2, 1, true, edge);
        assert(edge.size() == 1);
        edges.insert(edge[0]);
        //
        edge.clear();
        CHKERR moab.get_adjacencies(&conn[3], 2, 1, true, edge);
        assert(edge.size() == 1);
        edges.insert(edge[0]);
        edge.clear();
        CHKERR moab.get_adjacencies(&conn[4], 2, 1, true, edge);
        assert(edge.size() == 1);
        edges.insert(edge[0]);
        EntityHandle conn_edge8[] = {conn[5], conn[3]};
        edge.clear();
        CHKERR moab.get_adjacencies(conn_edge8, 2, 1, true, edge);
        assert(edge.size() == 1);
        edges.insert(edge[0]);
      }
    }
  }
  CHKERR addVerticesInTheMiddleOfEdges(edges, bit, verb, start_v);
  MoFEMFunctionReturn(0);
}

addVerticesInTheMiddleOfEdges() [2/2]

MoFEMErrorCode MoFEM::MeshRefinement::addVerticesInTheMiddleOfEdges	(	const Range &	edges,
		const BitRefLevel &	bit,
		int	verb = QUIET,
		EntityHandle	start_v = 0 )

make vertices in the middle of edges in meshset and add them to Refinement levels defined by bit

Takes entities from meshsets and queried recursively (get entities from meshsets in meshsets, usually have to be used for CUBIT meshset). If meshset does not contain any edges, get entities in dimension 3 and get edge adjacencies.

Parameters

Range	consisting edges for refine
BitRefLevel	bitLevel
recursive	If true, meshsets containing meshsets are queried recursively. Returns the contents of meshsets, but not the meshsets themselves if true.

Definition at line 96 of file MeshRefinement.cpp.

                                                                               {
  Interface &m_field = cOre;
  moab::Interface &moab = m_field.get_moab();
  auto refined_ents_ptr = m_field.get_ref_ents();
  MoFEMFunctionBegin;
  auto miit =
      refined_ents_ptr->get<Composite_EntType_and_ParentEntType_mi_tag>()
          .lower_bound(boost::make_tuple(MBVERTEX, MBEDGE));
  auto hi_miit =
      refined_ents_ptr->get<Composite_EntType_and_ParentEntType_mi_tag>()
          .upper_bound(boost::make_tuple(MBVERTEX, MBEDGE));
  RefEntity_multiIndex_view_by_ordered_parent_entity ref_parent_ents_view;
  ref_parent_ents_view.insert(miit, hi_miit);
 
  Range edges = ents.subset_by_type(MBEDGE);
  if (verb >= VERBOSE) {
    MOFEM_TAG_AND_LOG("WORLD", Sev::verbose, "MeshRefinemnt")
        << "ref level " << bit << " nb. edges to refine " << edges.size();
  }
 
  std::array<std::vector<double>, 3> vert_coords;
  for (auto &vc : vert_coords)
    vc.reserve(edges.size());
 
  std::vector<EntityHandle> parent_edge;
  parent_edge.reserve(edges.size());
 
  std::array<double, 9> coords;
  FTensor::Tensor1<FTensor::PackPtr<double *, 0>, 3> t_0 = {
      &coords[0], &coords[1], &coords[2]};
  FTensor::Tensor1<FTensor::PackPtr<double *, 0>, 3> t_1 = {
      &coords[3], &coords[4], &coords[5]};
  FTensor::Tensor1<FTensor::PackPtr<double *, 0>, 3> t_2 = {
      &coords[6], &coords[7], &coords[8]};
 
  FTensor::Index<'i', 3> i;
 
  Range add_bit;
  for (auto p_eit = edges.pair_begin(); p_eit != edges.pair_end(); ++p_eit) {
    auto miit_view = ref_parent_ents_view.lower_bound(p_eit->first);
 
    Range edge_having_parent_vertex;
    if (miit_view != ref_parent_ents_view.end()) {
      for (auto hi_miit_view = ref_parent_ents_view.upper_bound(p_eit->second);
           miit_view != hi_miit_view; ++miit_view) {
        edge_having_parent_vertex.insert(edge_having_parent_vertex.end(),
                                         miit_view->get()->getParentEnt());
        add_bit.insert(add_bit.end(), miit_view->get()->getEnt());
      }
    }
 
    Range add_vertex_edges =
        subtract(Range(p_eit->first, p_eit->second), edge_having_parent_vertex);
 
    for (auto e : add_vertex_edges)
      parent_edge.emplace_back(e);
 
    for (auto e : add_vertex_edges) {
 
      const EntityHandle *conn;
      int num_nodes;
      CHKERR moab.get_connectivity(e, conn, num_nodes, false);
      if(num_nodes == 2) {
        CHKERR moab.get_coords(conn, num_nodes, coords.data());
        t_0(i) += t_1(i);
        t_0(i) *= 0.5;
        for (auto j : {0, 1, 2})
          vert_coords[j].emplace_back(t_0(j));
 
      } else if (num_nodes == 3) {
       for (auto j : {0, 1, 2})
         vert_coords[j].emplace_back(t_2(j));
      } else {
        SETERRQ(PETSC_COMM_SELF, MOFEM_DATA_INCONSISTENCY,
                "edge should have 2 or 3 nodes but have %d", num_nodes);
      }
    }
  }
 
  CHKERR m_field.getInterface<BitRefManager>()->addBitRefLevel(add_bit, bit);
 
  if (!vert_coords[0].empty()) {
    ReadUtilIface *read_util;
    CHKERR moab.query_interface(read_util);
    int num_nodes = vert_coords[0].size();
    vector<double *> arrays_coord;
    CHKERR read_util->get_node_coords(3, num_nodes, 0, start_v, arrays_coord);
    Range verts(start_v, start_v + num_nodes - 1);
    for (auto dd : {0, 1, 2}) {
      std::copy(vert_coords[dd].begin(), vert_coords[dd].end(),
                arrays_coord[dd]);
    }
    CHKERR moab.tag_set_data(cOre.get_th_RefParentHandle(), verts,
                             &*parent_edge.begin());
    CHKERR m_field.getInterface<BitRefManager>()->setEntitiesBitRefLevel(
        verts, bit, verb);
  }
  MoFEMFunctionReturn(0);
}

query_interface()

MoFEMErrorCode MoFEM::MeshRefinement::query_interface ( boost::typeindex::type_index type_index, UnknownInterface ** iface ) const

virtual

Implements MoFEM::UnknownInterface.

Definition at line 33 of file MeshRefinement.cpp.

                                                                {
  *iface = const_cast<MeshRefinement *>(this);
  return 0;
}

refineMeshset()

MoFEMErrorCode MoFEM::MeshRefinement::refineMeshset	(	const EntityHandle	meshset,
		const BitRefLevel &	bit,
		const bool	recursive = false,
		int	verb = QUIET )

refine meshset, i.e. add child of refined entities to meshset

Parameters

EntityHandle	meshset where to save the child refined entities
BitRefLevel	bitLevel
recursive	If true, meshsets containing meshsets are queried recursively. Returns the contents of meshsets, but not the meshsets themselves if true.

Definition at line 905 of file MeshRefinement.cpp.

                                                                             {
  Interface &m_field = cOre;
  auto refined_ents_ptr = m_field.get_ref_ents();
  MoFEMFunctionBegin;
  auto miit = refined_ents_ptr->find(meshset);
  if (miit == refined_ents_ptr->end()) {
    SETERRQ(m_field.get_comm(), MOFEM_DATA_INCONSISTENCY,
            "this meshset is not in ref database");
  }
  CHKERR m_field.getInterface<BitRefManager>()->updateMeshsetByEntitiesChildren(
      meshset, bit, meshset, MBMAXTYPE, recursive, verb);
  *(const_cast<RefEntity *>(miit->get())->getBitRefLevelPtr()) |= bit;
  MoFEMFunctionReturn(0);
}

refinePrisms()

MoFEMErrorCode MoFEM::MeshRefinement::refinePrisms	(	const EntityHandle	meshset,
		const BitRefLevel &	bit,
		int	verb = QUIET )

refine PRISM in the meshset

Parameters

EntityHandle	meshset
BitRefLevel	bitLevel

Definition at line 722 of file MeshRefinement.cpp.

                                                                              {
 
  Interface &m_field = cOre;
  moab::Interface &moab = m_field.get_moab();
  auto refined_ents_ptr = m_field.get_ref_ents();
  auto refined_finite_elements_ptr = m_field.get_ref_finite_elements();
 
  // FIXME: refinement is based on entity handlers, should work on global ids of
  // nodes, this will allow parallelise algorithm in the future
 
  MoFEMFunctionBegin;
 
  RefElement_multiIndex_parents_view ref_ele_parent_view;
  ref_ele_parent_view.insert(
      refined_finite_elements_ptr->get<Ent_mi_tag>().lower_bound(
          get_id_for_min_type<MBPRISM>()),
      refined_finite_elements_ptr->get<Ent_mi_tag>().upper_bound(
          get_id_for_max_type<MBPRISM>()));
  auto &ref_ele_by_parent_and_ref_edges =
      ref_ele_parent_view
          .get<Composite_ParentEnt_And_BitsOfRefinedEdges_mi_tag>();
  // find all vertices which parent is edge
  auto &ref_ents_by_comp =
      refined_ents_ptr->get<Composite_EntType_and_ParentEntType_mi_tag>();
  RefEntity_multiIndex_view_by_hashed_parent_entity ref_parent_ents_view;
  ref_parent_ents_view.insert(
      ref_ents_by_comp.lower_bound(boost::make_tuple(MBVERTEX, MBEDGE)),
      ref_ents_by_comp.upper_bound(boost::make_tuple(MBVERTEX, MBEDGE)));
  Range prisms;
  CHKERR moab.get_entities_by_type(meshset, MBPRISM, prisms, false);
  Range::iterator pit = prisms.begin();
  for (; pit != prisms.end(); pit++) {
    auto miit_prism = refined_ents_ptr->get<Ent_mi_tag>().find(*pit);
    if (miit_prism == refined_ents_ptr->end()) {
      SETERRQ(m_field.get_comm(), MOFEM_DATA_INCONSISTENCY,
              "this prism is not in ref database");
    }
    if (verb >= NOISY) {
      MOFEM_TAG_AND_LOG("WORLD", Sev::noisy, "MeshRefinment")
          << "ref prism " << **miit_prism;
    }
    // prism connectivity
    int num_nodes;
    const EntityHandle *conn;
    CHKERR moab.get_connectivity(*pit, conn, num_nodes, true);
    assert(num_nodes == 6);
    // edges connectivity
    EntityHandle edges[6];
    for (int ee = 0; ee < 3; ee++) {
      CHKERR moab.side_element(*pit, 1, ee, edges[ee]);
    }
    for (int ee = 6; ee < 9; ee++) {
      CHKERR moab.side_element(*pit, 1, ee, edges[ee - 3]);
    }
    // detect split edges
    BitRefEdges split_edges(0);
    EntityHandle edge_nodes[6];
    std::fill(&edge_nodes[0], &edge_nodes[6], no_handle);
    for (int ee = 0; ee < 6; ee++) {
      RefEntity_multiIndex_view_by_hashed_parent_entity::iterator miit_view =
          ref_parent_ents_view.find(edges[ee]);
      if (miit_view != ref_parent_ents_view.end()) {
        if (((*miit_view)->getBitRefLevel() & bit).any()) {
          edge_nodes[ee] = (*miit_view)->getEnt();
          split_edges.set(ee);
        }
      }
    }
    if (split_edges.count() == 0) {
      *(const_cast<RefEntity *>(miit_prism->get())->getBitRefLevelPtr()) |= bit;
      if (verb >= VERY_NOISY)
        MOFEM_TAG_AND_LOG("WORLD", Sev::noisy, "MeshRefinment")
            << "no refinement";
      continue;
    }
    // check consistency
    if (verb >= NOISY) {
      std::ostringstream ss;
      ss << "prism split edges " << split_edges << " count "
         << split_edges.count() << std::endl;
      PetscPrintf(m_field.get_comm(), "%s", ss.str().c_str());
    }
    // prism ref
    EntityHandle new_prism_conn[4 * 6];
    std::fill(&new_prism_conn[0], &new_prism_conn[4 * 6], no_handle);
    int nb_new_prisms = 0;
    switch (split_edges.count()) {
    case 0:
      break;
    case 2:
      CHKERR prism_type_1(conn, split_edges, edge_nodes, new_prism_conn);
      nb_new_prisms = 2;
      break;
    case 4:
      CHKERR prism_type_2(conn, split_edges, edge_nodes, new_prism_conn);
      nb_new_prisms = 3;
      break;
    case 6:
      CHKERR prism_type_3(conn, split_edges, edge_nodes, new_prism_conn);
      nb_new_prisms = 4;
      break;
    default:
      std::ostringstream ss;
      ss << split_edges << " : [ " << conn[0] << " " << conn[1] << " "
         << conn[2] << " " << conn[3] << " " << conn[4] << " " << conn[5]
         << " ]";
      SETERRQ(m_field.get_comm(), MOFEM_DATA_INCONSISTENCY, "%s",
              ss.str().c_str());
    }
    // find that prism
    std::bitset<4> ref_prism_bit(0);
    auto it_by_ref_edges = ref_ele_by_parent_and_ref_edges.lower_bound(
        boost::make_tuple(*pit, split_edges.to_ulong()));
    auto hi_it_by_ref_edges = ref_ele_by_parent_and_ref_edges.upper_bound(
        boost::make_tuple(*pit, split_edges.to_ulong()));
    auto it_by_ref_edges2 = it_by_ref_edges;
    for (int pp = 0; it_by_ref_edges2 != hi_it_by_ref_edges;
         it_by_ref_edges2++, pp++) {
      // Add this tet to this ref
      *(const_cast<RefElement *>(it_by_ref_edges2->get())
            ->getBitRefLevelPtr()) |= bit;
      ref_prism_bit.set(pp, 1);
      if (verb > 2) {
        std::ostringstream ss;
        ss << "is refined " << *it_by_ref_edges2 << std::endl;
        PetscPrintf(m_field.get_comm(), "%s", ss.str().c_str());
      }
    }
    if (it_by_ref_edges != hi_it_by_ref_edges) {
      if (ref_prism_bit.count() != (unsigned int)nb_new_prisms)
        SETERRQ(m_field.get_comm(), MOFEM_DATA_INCONSISTENCY,
                "data inconsistency");
    } else {
      EntityHandle ref_prisms[4];
      // create prism
      for (int pp = 0; pp < nb_new_prisms; pp++) {
        if (verb > 3) {
          std::ostringstream ss;
          ss << "ref prism " << ref_prism_bit << std::endl;
          PetscPrintf(m_field.get_comm(), "%s", ss.str().c_str());
        }
        if (!ref_prism_bit.test(pp)) {
          CHKERR moab.create_element(MBPRISM, &new_prism_conn[6 * pp], 6,
                                     ref_prisms[pp]);
          CHKERR moab.tag_set_data(cOre.get_th_RefParentHandle(),
                                   &ref_prisms[pp], 1, &*pit);
          CHKERR moab.tag_set_data(cOre.get_th_RefBitLevel(), &ref_prisms[pp],
                                   1, &bit);
          CHKERR moab.tag_set_data(cOre.get_th_RefBitEdge(), &ref_prisms[pp], 1,
                                   &split_edges);
          auto p_ent =
              const_cast<RefEntity_multiIndex *>(refined_ents_ptr)
                  ->insert(boost::shared_ptr<RefEntity>(new RefEntity(
                      m_field.get_basic_entity_data_ptr(), ref_prisms[pp])));
          std::pair<RefElement_multiIndex::iterator, bool> p_fe;
          try {
            p_fe =
                const_cast<RefElement_multiIndex *>(refined_finite_elements_ptr)
                    ->insert(boost::shared_ptr<RefElement>(
                        new RefElement_PRISM(*p_ent.first)));
          } catch (MoFEMException const &e) {
            SETERRQ(PETSC_COMM_SELF, e.errorCode, "%s", e.errorMessage);
          }
          ref_prism_bit.set(pp);
          CHKERR cOre.addPrismToDatabase(ref_prisms[pp]);
          if (verb > 2) {
            std::ostringstream ss;
            ss << "add prism: " << **p_fe.first << std::endl;
            if (verb > 7) {
              for (int nn = 0; nn < 6; nn++) {
                ss << new_prism_conn[nn] << " ";
              }
              ss << std::endl;
            }
            PetscPrintf(m_field.get_comm(), "%s", ss.str().c_str());
          }
        }
      }
    }
  }
  MoFEMFunctionReturn(0);
}

refineTets() [1/3]

MoFEMErrorCode MoFEM::MeshRefinement::refineTets	(	const EntityHandle	meshset,
		const BitRefLevel &	bit,
		int	verb = QUIET,
		const bool	debug = false )

refine TET in the meshset

Parameters

EntityHandle	meshset
BitRefLevel	bitLevel
verb	verbosity level

Examples

bernstein_bezier_generate_base.cpp.

Definition at line 197 of file MeshRefinement.cpp.

                                                            {
  Interface &m_field = cOre;
  moab::Interface &moab = m_field.get_moab();
  MoFEMFunctionBegin;
  Range tets;
  CHKERR moab.get_entities_by_type(meshset, MBTET, tets, false);
  CHKERR refineTets(tets, bit, verb, debug);
  MoFEMFunctionReturn(0);
}

refineTets() [2/3]

MoFEMErrorCode MoFEM::MeshRefinement::refineTets	(	const Range &	tets,
		const BitRefLevel &	bit,
		int	verb = QUIET,
		const bool	debug = false )

refine TET in the meshset

Parameters

Range	of tets to refine
BitRefLevel	bitLevel
BitRefLevel	bitLevel
verb	verbosity level

Definition at line 244 of file MeshRefinement.cpp.

                                                            {
 
  MoFEMFunctionBegin;
 
  auto set_edge_bits = [](moab::Interface &moab,
                          RefEntity_multiIndex_view_by_ordered_parent_entity
                              &ref_parent_ents_view,
                          EntityHandle tet, BitRefEdges &parent_edges_bit,
                          EntityHandle *edge_new_nodes, int *split_edges) {
    MoFEMFunctionBeginHot;
 
    for (int ee = 0; ee != 6; ++ee) {
      EntityHandle edge;
      CHKERR moab.side_element(tet, 1, ee, edge);
      auto eit = ref_parent_ents_view.find(edge);
      if (eit != ref_parent_ents_view.end()) {
        edge_new_nodes[ee] = (*eit)->getEnt();
        split_edges[parent_edges_bit.count()] = ee;
        parent_edges_bit.set(ee, 1);
      }
    }
 
    MoFEMFunctionReturnHot(0);
  };
 
  CHKERR refineTets(_tets, bit, set_edge_bits, verb, debug);
 
  MoFEMFunctionReturn(0);
}

refineTets() [3/3]

MoFEMErrorCode MoFEM::MeshRefinement::refineTets ( const Range & tets, const BitRefLevel & bit, SetEdgeBitsFun set_edge_bits, int verb, const bool debug )

private

refine TET in the meshset

Parameters

Range	of tets to refine
BitRefLevel	bitLevel
verb	verbosity level

Definition at line 325 of file MeshRefinement.cpp.

                                                                      {
 
  Interface &m_field = cOre;
  moab::Interface &moab = m_field.get_moab();
  auto refined_ents_ptr = m_field.get_ref_ents();
  auto refined_finite_elements_ptr = m_field.get_ref_finite_elements();
  ReadUtilIface *read_util;
  MoFEMFunctionBegin;
 
  CHKERR m_field.get_moab().query_interface(read_util);
 
  Range ents_to_set_bit;
 
  // FIXME: refinement is based on entity handlers, should work on global ids of
  // nodes, this will allow parallelise algorithm in the future
 
  auto get_parent_ents_view = [&](const auto type_child,
                                  const auto type_parent) {
    auto &ref_ents =
        refined_ents_ptr->get<Composite_EntType_and_ParentEntType_mi_tag>();
    auto range =
        ref_ents.equal_range(boost::make_tuple(type_child, type_parent));
 
    RefEntity_multiIndex_view_by_ordered_parent_entity ref_parent_ents_view;
 
    using I = decltype(range.first);
 
    boost::function<bool(I it)> tester = [&](I it) {
      return ((*it)->getBitRefLevel() & bit).any();
    };
 
    boost::function<MoFEMErrorCode(I f, I s)> inserter = [&](I f, I s) {
      ref_parent_ents_view.insert(f, s);
      return 0;
    };
 
    rangeInserter(range.first, range.second, tester, inserter);
 
    return ref_parent_ents_view;
  };
 
  auto ref_parent_ents_view = get_parent_ents_view(MBVERTEX, MBEDGE);
 
  auto tets = _tets.subset_by_type(MBTET);
 
  auto get_ele_parent_view = [&]() {
    auto &ref_ents = refined_finite_elements_ptr->get<Ent_mi_tag>();
    RefElement_multiIndex_parents_view ref_ele_parent_view;
    for (auto p = tets.pair_begin(); p != tets.pair_end(); ++p) {
      auto tmi = ref_ents.lower_bound(p->first);
      auto tme = ref_ents.upper_bound(p->second);
      ref_ele_parent_view.insert(tmi, tme);
    }
    return ref_ele_parent_view;
  };
 
  auto ref_ele_parent_view = get_ele_parent_view();
 
  std::vector<EntityHandle> parent_tets_refinded;
  std::vector<EntityHandle> vertices_of_created_tets;
  std::vector<BitRefEdges> parent_edges_bit_vec;
  std::vector<int> nb_new_tets_vec;
  std::vector<int> sub_type_vec;
 
  parent_tets_refinded.reserve(tets.size());
  vertices_of_created_tets.reserve(4 * tets.size());
  parent_edges_bit_vec.reserve(tets.size());
  nb_new_tets_vec.reserve(tets.size());
  sub_type_vec.reserve(tets.size());
 
  // make loop over all tets which going to be refined
  for (auto tit : tets) {
 
    // get tet connectivity
    const EntityHandle *conn;
    int num_nodes;
    CHKERR moab.get_connectivity(tit, conn, num_nodes, true);
 
    // get edges
    BitRefEdges parent_edges_bit(0);
    EntityHandle edge_new_nodes[] = {0, 0, 0, 0, 0, 0};
    int split_edges[] = {-1, -1, -1, -1, -1, -1};
 
    CHKERR set_edge_bits(moab, ref_parent_ents_view, tit, parent_edges_bit,
                         edge_new_nodes, split_edges);
 
    if (parent_edges_bit.count()) {
 
      // swap nodes forward
      EntityHandle _conn_[4];
      std::copy(&conn[0], &conn[4], &_conn_[0]);
 
      // build connectivity for ref tets
      EntityHandle new_tets_conns[8 * 4];
      std::fill(&new_tets_conns[0], &new_tets_conns[8 * 4], no_handle);
 
      int sub_type = -1, nb_new_tets = 0;
      switch (parent_edges_bit.count()) {
      case 1:
        sub_type = 0;
        tet_type_1(_conn_, split_edges[0], edge_new_nodes[split_edges[0]],
                   new_tets_conns);
        nb_new_tets = 2;
        break;
      case 2:
        sub_type =
            tet_type_2(_conn_, split_edges, edge_new_nodes, new_tets_conns);
        if (sub_type & (4 | 8 | 16)) {
          nb_new_tets = 3;
          break;
        } else if (sub_type == 1) {
          nb_new_tets = 4;
          break;
        };
        SETERRQ(PETSC_COMM_SELF, MOFEM_IMPOSSIBLE_CASE, "Impossible case");
        break;
      case 3:
        sub_type =
            tet_type_3(_conn_, split_edges, edge_new_nodes, new_tets_conns);
        if (sub_type <= 4) {
          nb_new_tets = 4;
          break;
        } else if (sub_type <= 7) {
          nb_new_tets = 5;
          break;
        }
        SETERRQ(PETSC_COMM_SELF, MOFEM_IMPOSSIBLE_CASE, "Impossible case");
      case 4:
        sub_type =
            tet_type_4(_conn_, split_edges, edge_new_nodes, new_tets_conns);
        if (sub_type == 0) {
          nb_new_tets = 5;
          break;
        } else if (sub_type <= 7) {
          nb_new_tets = 6;
          break;
        }
        SETERRQ(PETSC_COMM_SELF, MOFEM_IMPOSSIBLE_CASE, "Impossible case");
      case 5:
        sub_type = tet_type_5(moab, _conn_, edge_new_nodes, new_tets_conns);
        nb_new_tets = 7;
        break;
      case 6:
        sub_type = 0;
        tet_type_6(moab, _conn_, edge_new_nodes, new_tets_conns);
        nb_new_tets = 8;
        break;
      default:
        SETERRQ(PETSC_COMM_SELF, MOFEM_IMPOSSIBLE_CASE, "Impossible case");
      }
 
      // find that tets
      auto &ref_ele_by_parent_and_ref_edges =
          ref_ele_parent_view
              .get<Composite_ParentEnt_And_BitsOfRefinedEdges_mi_tag>();
      auto it_by_ref_edges = ref_ele_by_parent_and_ref_edges.equal_range(
          boost::make_tuple(tit, parent_edges_bit.to_ulong()));
      // check if tet with this refinement scheme already exits
      std::vector<EntityHandle> ents_to_set_bit_vec;
      if (std::distance(it_by_ref_edges.first, it_by_ref_edges.second) ==
          static_cast<size_t>(nb_new_tets)) {
        ents_to_set_bit_vec.reserve(nb_new_tets);
        for (int tt = 0; it_by_ref_edges.first != it_by_ref_edges.second;
             it_by_ref_edges.first++, tt++) {
          auto tet = (*it_by_ref_edges.first)->getEnt();
          ents_to_set_bit_vec.emplace_back(tet);
          // set ref tets entities
          if (debug) {
            // add this tet if exist to this ref level
            auto ref_tet_it = refined_ents_ptr->find(tet);
            if (ref_tet_it == refined_ents_ptr->end()) {
              SETERRQ(m_field.get_comm(), MOFEM_DATA_INCONSISTENCY,
                      "Tetrahedron should be in database");
            }
          }
        }
        ents_to_set_bit.insert_list(ents_to_set_bit_vec.begin(),
                                    ents_to_set_bit_vec.end());
 
      } else {
        // if this element was not refined or was refined with different
        // patterns of split edges create new elements
 
        parent_tets_refinded.emplace_back(tit);
        for (int tt = 0; tt != nb_new_tets; ++tt) {
          for (auto nn : {0, 1, 2, 3})
            vertices_of_created_tets.emplace_back(new_tets_conns[4 * tt + nn]);
        }
        parent_edges_bit_vec.emplace_back(parent_edges_bit);
        nb_new_tets_vec.emplace_back(nb_new_tets);
        sub_type_vec.emplace_back(sub_type);
      }
    } else {
 
      if (debug) {
        RefEntity_multiIndex::iterator tit_miit;
        tit_miit = refined_ents_ptr->find(tit);
        if (tit_miit == refined_ents_ptr->end())
          SETERRQ(PETSC_COMM_SELF, MOFEM_DATA_INCONSISTENCY,
                  "can not find this tet");
      }
 
      ents_to_set_bit.insert(tit);
    }
  }
 
  // Create tets
  EntityHandle start_e = 0;
  EntityHandle *conn_moab;
  const int nb_new_tets = vertices_of_created_tets.size() / 4;
  read_util->get_element_connect(nb_new_tets, 4, MBTET, 0, start_e, conn_moab);
  std::copy(vertices_of_created_tets.begin(), vertices_of_created_tets.end(),
            conn_moab);
  CHKERR read_util->update_adjacencies(start_e, nb_new_tets, 4, conn_moab);
  ents_to_set_bit.insert(start_e, start_e + nb_new_tets - 1);
 
  // Create adj entities
  Range ents;
  for (auto d : {1, 2}) {
    CHKERR moab.get_adjacencies(ents_to_set_bit, d, true, ents,
                                moab::Interface::UNION);
  }
 
  SetParent set_parent;
 
  // Set parents and adjacencies
  for (int idx = 0; idx != parent_tets_refinded.size(); ++idx) {
 
    const EntityHandle tit = parent_tets_refinded[idx];
    const BitRefEdges &parent_edges_bit = parent_edges_bit_vec[idx];
    const int nb_new_tets = nb_new_tets_vec[idx];
 
    std::array<EntityHandle, 8> ref_tets;
    for (int tt = 0; tt != nb_new_tets; ++tt, ++start_e)
      ref_tets[tt] = start_e;
 
    if (nb_new_tets) {
 
      CHKERR moab.tag_clear_data(cOre.get_th_RefBitEdge(), &ref_tets[0],
                                 nb_new_tets, &parent_edges_bit);
      CHKERR moab.tag_clear_data(cOre.get_th_RefParentHandle(), &ref_tets[0],
                                 nb_new_tets, &tit);
 
      // hash map of nodes (RefEntity) by edges (EntityHandle)
      std::map<EntityHandle /*edge*/, EntityHandle /*node*/>
          map_ref_nodes_by_edges;
 
      Range tit_edges;
      CHKERR moab.get_adjacencies(&tit, 1, 1, false, tit_edges);
      for (auto edge : tit_edges) {
        auto eit = ref_parent_ents_view.find(edge);
        if (eit != ref_parent_ents_view.end()) {
          map_ref_nodes_by_edges[(*eit)->getParentEnt()] = eit->get()->getEnt();
        }
      }
 
      // find parents for new edges and faces
      // get tet edges and faces
      Range tit_faces;
      CHKERR moab.get_adjacencies(&tit, 1, 2, false, tit_faces);
      Range edges_nodes[6], faces_nodes[4];
      // for edges - add ref nodes
      // edges_nodes[ee] - contains all nodes on edge ee including mid nodes if
      // exist
      Range::iterator eit = tit_edges.begin();
      for (int ee = 0; eit != tit_edges.end(); eit++, ee++) {
        CHKERR moab.get_connectivity(&*eit, 1, edges_nodes[ee], true);
        auto map_miit = map_ref_nodes_by_edges.find(*eit);
        if (map_miit != map_ref_nodes_by_edges.end()) {
          edges_nodes[ee].insert(map_miit->second);
        }
      }
      // for faces - add ref nodes
      // faces_nodes[ff] - contains all nodes on face ff including mid nodes if
      // exist
      Range::iterator fit = tit_faces.begin();
      for (int ff = 0; fit != tit_faces.end(); fit++, ff++) {
        CHKERR moab.get_connectivity(&*fit, 1, faces_nodes[ff], true);
        // Get edges on face and loop over those edges to add mid-nodes to range
        Range fit_edges;
        CHKERR moab.get_adjacencies(&*fit, 1, 1, false, fit_edges);
        for (Range::iterator eit2 = fit_edges.begin(); eit2 != fit_edges.end();
             eit2++) {
          auto map_miit = map_ref_nodes_by_edges.find(*eit2);
          if (map_miit != map_ref_nodes_by_edges.end()) {
            faces_nodes[ff].insert(map_miit->second);
          }
        }
      }
      // add ref nodes to tet
      // tet_nodes contains all nodes on tet including mid edge nodes
      Range tet_nodes;
      CHKERR moab.get_connectivity(&tit, 1, tet_nodes, true);
      for (std::map<EntityHandle, EntityHandle>::iterator map_miit =
               map_ref_nodes_by_edges.begin();
           map_miit != map_ref_nodes_by_edges.end(); map_miit++) {
        tet_nodes.insert(map_miit->second);
      }
      Range ref_edges;
      // Get all all edges of refined tets
      CHKERR moab.get_adjacencies(ref_tets.data(), nb_new_tets, 1, false,
                                  ref_edges, moab::Interface::UNION);
      // Check for all ref edge and set parents
      for (Range::iterator reit = ref_edges.begin(); reit != ref_edges.end();
           reit++) {
        Range ref_edges_nodes;
        CHKERR moab.get_connectivity(&*reit, 1, ref_edges_nodes, true);
 
        // Check if ref edge is an coarse edge (loop over coarse tet edges)
        int ee = 0;
        for (; ee < 6; ee++) {
          // Two nodes are common (node[0],node[1],ref_node (if exist))
          // this tests if given edge is contained by edge of refined
          // tetrahedral
          if (intersect(edges_nodes[ee], ref_edges_nodes).size() == 2) {
            EntityHandle edge = tit_edges[ee];
            CHKERR set_parent(*reit, edge, refined_ents_ptr, cOre);
            break;
          }
        }
        if (ee < 6)
          continue; // this refined edge is contained by edge of tetrahedral
        // check if ref edge is in coarse face
        int ff = 0;
        for (; ff < 4; ff++) {
          // two nodes are common (node[0],node[1],ref_node (if exist))
          // this tests if given face is contained by face of  tetrahedral
          if (intersect(faces_nodes[ff], ref_edges_nodes).size() == 2) {
            EntityHandle face = tit_faces[ff];
            CHKERR set_parent(*reit, face, refined_ents_ptr, cOre);
            break;
          }
        }
        if (ff < 4)
          continue; // this refined edge is contained by face of tetrahedral
 
        // check if ref edge is in coarse tetrahedral (i.e. that is internal
        // edge of refined tetrahedral)
        if (intersect(tet_nodes, ref_edges_nodes).size() == 2) {
          CHKERR set_parent(*reit, tit, refined_ents_ptr, cOre);
          continue;
        }
 
        // Refined edge is not child of any edge, face or tetrahedral, this is
        // Impossible edge
        SETERRQ(m_field.get_comm(), MOFEM_DATA_INCONSISTENCY,
                "impossible refined edge");
      }
 
      Range ref_faces;
      CHKERR moab.get_adjacencies(ref_tets.data(), nb_new_tets, 2, false,
                                  ref_faces, moab::Interface::UNION);
      Tag th_interface_side;
      const int def_side[] = {0};
      CHKERR moab.tag_get_handle("INTERFACE_SIDE", 1, MB_TYPE_INTEGER,
                                 th_interface_side,
                                 MB_TAG_CREAT | MB_TAG_SPARSE, def_side);
      // Check for all ref faces
      for (auto rfit : ref_faces) {
        Range ref_faces_nodes;
        CHKERR moab.get_connectivity(&rfit, 1, ref_faces_nodes, true);
        // Check if ref face is in coarse face
        int ff = 0;
        for (; ff < 4; ff++) {
          // Check if refined triangle is contained by face of tetrahedral
          if (intersect(faces_nodes[ff], ref_faces_nodes).size() == 3) {
            EntityHandle face = tit_faces[ff];
            CHKERR set_parent(rfit, face, refined_ents_ptr, cOre);
            int side = 0;
            // Set face side if it is on interface
            CHKERR moab.tag_get_data(th_interface_side, &face, 1, &side);
            CHKERR moab.tag_set_data(th_interface_side, &rfit, 1, &side);
            break;
          }
        }
        if (ff < 4)
          continue; // this face is contained by one of tetrahedrons
        // check if ref face is in coarse tetrahedral
        // this is ref face which is contained by tetrahedral volume
        if (intersect(tet_nodes, ref_faces_nodes).size() == 3) {
          CHKERR set_parent(rfit, tit, refined_ents_ptr, cOre);
          continue;
        }
        SETERRQ(m_field.get_comm(), MOFEM_DATA_INCONSISTENCY,
                "impossible refined face");
      }
    }
  }
 
  CHKERR set_parent(refined_ents_ptr);
  CHKERR m_field.getInterface<BitRefManager>()->setBitRefLevel(
      ents_to_set_bit, bit, true, verb, &ents);
  MoFEMFunctionReturn(0);
}

refineTetsHangingNodes() [1/2]

MoFEMErrorCode MoFEM::MeshRefinement::refineTetsHangingNodes	(	const EntityHandle	meshset,
		const BitRefLevel &	bit,
		int	verb = QUIET,
		const bool	debug = false )

refine TET in the meshset

Parameters

Range	of tets to refine
BitRefLevel	bitLevel
BitRefLevel	bitLevel
verb	verbosity level

Definition at line 313 of file MeshRefinement.cpp.

                                                         {
  Interface &m_field = cOre;
  moab::Interface &moab = m_field.get_moab();
  MoFEMFunctionBegin;
  Range tets;
  CHKERR moab.get_entities_by_type(meshset, MBTET, tets, false);
  CHKERR refineTetsHangingNodes(tets, bit, verb, debug);
  MoFEMFunctionReturn(0);
}

refineTetsHangingNodes() [2/2]

MoFEMErrorCode MoFEM::MeshRefinement::refineTetsHangingNodes	(	const Range &	tets,
		const BitRefLevel &	bit,
		int	verb = QUIET,
		const bool	debug = false )

refine TET in the meshset

Parameters

Range	of tets to refine
BitRefLevel	bitLevel
BitRefLevel	bitLevel
verb	verbosity level

Definition at line 276 of file MeshRefinement.cpp.

                                                                        {
 
  MoFEMFunctionBegin;
 
  auto set_edge_bits = [](moab::Interface &moab,
                          RefEntity_multiIndex_view_by_ordered_parent_entity
                              &ref_parent_ents_view,
                          EntityHandle tet, BitRefEdges &parent_edges_bit,
                          EntityHandle *edge_new_nodes, int *split_edges) {
    MoFEMFunctionBeginHot;
 
    for (int ee = 0; ee != 6; ++ee) {
      EntityHandle edge;
      CHKERR moab.side_element(tet, 1, ee, edge);
      auto eit = ref_parent_ents_view.find(edge);
      if (eit != ref_parent_ents_view.end()) {
        edge_new_nodes[ee] = (*eit)->getEnt();
        split_edges[parent_edges_bit.count()] = ee;
        parent_edges_bit.set(ee, 1);
      }
    }
 
    if(parent_edges_bit.count() < 6)
      parent_edges_bit.reset();
 
    MoFEMFunctionReturnHot(0);
  };
 
  CHKERR refineTets(_tets, bit, set_edge_bits, verb, debug);
 
  MoFEMFunctionReturn(0);
}

refineTris() [1/3]

MoFEMErrorCode MoFEM::MeshRefinement::refineTris	(	const EntityHandle	meshset,
		const BitRefLevel &	bit,
		int	verb = QUIET,
		const bool	debug = false )

refine triangles in the meshset

Parameters

EntityHandle	meshset
BitRefLevel	bitLevel
verb	verbosity level

Definition at line 922 of file MeshRefinement.cpp.

                                                            {
  Interface &m_field = cOre;
  moab::Interface &moab = m_field.get_moab();
  MoFEMFunctionBegin;
  Range tris;
  CHKERR moab.get_entities_by_type(meshset, MBTRI, tris, false);
  CHKERR refineTris(tris, bit, verb, debug);
  MoFEMFunctionReturn(0);
}

refineTris() [2/3]

MoFEMErrorCode MoFEM::MeshRefinement::refineTris	(	const Range &	tris,
		const BitRefLevel &	bit,
		int	verb = QUIET,
		const bool	debug = false )

refine TRI in the meshset

Parameters

meshset	of entities to refine
BitRefLevel	bit level of created entities
verb	verbosity level

Definition at line 934 of file MeshRefinement.cpp.

                                                            {
  MoFEMFunctionBegin;
 
  auto set_edge_bits = [](moab::Interface &moab,
                          RefEntity_multiIndex_view_by_ordered_parent_entity
                              &ref_parent_ents_view,
                          EntityHandle tet, BitRefEdges &parent_edges_bit,
                          EntityHandle *edge_new_nodes, int *split_edges) {
    MoFEMFunctionBeginHot;
 
    for (int ee = 0; ee != 3; ++ee) {
      EntityHandle edge;
      CHKERR moab.side_element(tet, 1, ee, edge);
      auto eit = ref_parent_ents_view.find(edge);
      if (eit != ref_parent_ents_view.end()) {
        edge_new_nodes[ee] = (*eit)->getEnt();
        split_edges[parent_edges_bit.count()] = ee;
        parent_edges_bit.set(ee, 1);
      }
    }
 
    MoFEMFunctionReturnHot(0);
  };
 
  CHKERR refineTris(_tris, bit, set_edge_bits, verb, debug);
 
  MoFEMFunctionReturn(0);
}

refineTris() [3/3]

MoFEMErrorCode MoFEM::MeshRefinement::refineTris ( const Range & tris, const BitRefLevel & bit, SetEdgeBitsFun set_edge_bits, int verb, const bool debug )

private

Definition at line 1015 of file MeshRefinement.cpp.

                                                                      {
  Interface &m_field = cOre;
  moab::Interface &moab = m_field.get_moab();
  auto refined_ents_ptr = m_field.get_ref_ents();
  auto refined_finite_elements_ptr = m_field.get_ref_finite_elements();
  ReadUtilIface *read_util;
 
  MoFEMFunctionBegin;
 
  auto get_parent_ents_view = [&](const auto type_child,
                                  const auto type_parent) {
    auto &ref_ents =
        refined_ents_ptr->get<Composite_EntType_and_ParentEntType_mi_tag>();
    auto range =
        ref_ents.equal_range(boost::make_tuple(type_child, type_parent));
 
    RefEntity_multiIndex_view_by_ordered_parent_entity ref_parent_ents_view;
 
    using I = decltype(range.first);
 
    boost::function<bool(I it)> tester = [&](I it) {
      return ((*it)->getBitRefLevel() & bit).any();
    };
 
    boost::function<MoFEMErrorCode(I f, I s)> inserter = [&](I f, I s) {
      ref_parent_ents_view.insert(f, s);
      return 0;
    };
 
    rangeInserter(range.first, range.second, tester, inserter);
 
    return ref_parent_ents_view;
  };
 
  auto ref_parent_ents_view = get_parent_ents_view(MBVERTEX, MBEDGE);
 
  auto tris = _tris.subset_by_type(MBTRI);
 
  auto get_ele_parent_view = [&]() {
    auto &ref_ents = refined_finite_elements_ptr->get<Ent_mi_tag>();
    RefElement_multiIndex_parents_view ref_ele_parent_view;
    for (auto p = tris.pair_begin(); p != tris.pair_end(); ++p) {
      auto tmi = ref_ents.lower_bound(p->first);
      auto tme = ref_ents.upper_bound(p->second);
      ref_ele_parent_view.insert(tmi, tme);
    }
    return ref_ele_parent_view;
  };
 
  auto ref_ele_parent_view = get_ele_parent_view();
 
  Range ents_to_set_bit;
 
  std::vector<EntityHandle> parent_tris_refined; // entities refined
  std::vector<EntityHandle> vertices_of_created_tris;
  std::vector<BitRefEdges> parent_edges_bit_vec;
  std::vector<int> nb_new_tris_vec;
 
  parent_tris_refined.reserve(tris.size());
  vertices_of_created_tris.reserve(3 * tris.size());
  parent_edges_bit_vec.reserve(tris.size());
  nb_new_tris_vec.reserve(tris.size());
 
  // make loop over all tets which going to be refined
  for (auto tit : tris) {
 
    // get tet connectivity
    const EntityHandle *conn;
    int num_nodes;
    CHKERR moab.get_connectivity(tit, conn, num_nodes, true);
 
    // get edges
    BitRefEdges parent_edges_bit(0);
    EntityHandle edge_new_nodes[] = {0, 0, 0};
    int split_edges[] = {-1, -1, -1};
 
    CHKERR set_edge_bits(moab, ref_parent_ents_view, tit, parent_edges_bit,
                         edge_new_nodes, split_edges);
 
    if (parent_edges_bit.count()) {
 
      // swap nodes forward
      EntityHandle _conn_[3];
      std::copy(&conn[0], &conn[3], &_conn_[0]);
 
      // build connectivity for ref tets
      EntityHandle new_tets_conns[4 * 3];
      std::fill(&new_tets_conns[0], &new_tets_conns[4 * 3], no_handle);
 
      int nb_new_tris = 0;
      switch (parent_edges_bit.count()) {
      case 1:
        CHKERR tri_type_1(conn, split_edges[0], edge_new_nodes[split_edges[0]],
                          new_tets_conns);
        nb_new_tris += 2;
        break;
      case 2:
        CHKERR tri_type_2(conn, split_edges, edge_new_nodes, new_tets_conns);
        nb_new_tris += 3;
        break;
      case 3:
        CHKERR tri_type_3(conn, edge_new_nodes, new_tets_conns);
        nb_new_tris += 4;
        break;
      default:
        SETERRQ(PETSC_COMM_SELF, MOFEM_IMPOSSIBLE_CASE, "Impossible case");
      }
 
      // find that tets
      auto &ref_ele_by_parent_and_ref_edges =
          ref_ele_parent_view
              .get<Composite_ParentEnt_And_BitsOfRefinedEdges_mi_tag>();
      auto it_by_ref_edges = ref_ele_by_parent_and_ref_edges.equal_range(
          boost::make_tuple(tit, parent_edges_bit.to_ulong()));
      // check if tet with this refinement scheme already exits
      std::vector<EntityHandle> ents_to_set_bit_vec;
      if (std::distance(it_by_ref_edges.first, it_by_ref_edges.second) ==
          static_cast<size_t>(nb_new_tris)) {
        ents_to_set_bit_vec.reserve(nb_new_tris);
        for (int tt = 0; it_by_ref_edges.first != it_by_ref_edges.second;
             it_by_ref_edges.first++, tt++) {
          auto tet = (*it_by_ref_edges.first)->getEnt();
          ents_to_set_bit_vec.emplace_back(tet);
          // set ref tets entities
          if (debug) {
            // add this tet if exist to this ref level
            auto ref_tet_it = refined_ents_ptr->find(tet);
            if (ref_tet_it == refined_ents_ptr->end()) {
              SETERRQ(m_field.get_comm(), MOFEM_DATA_INCONSISTENCY,
                      "Tetrahedron should be in database");
            }
          }
        }
        ents_to_set_bit.insert_list(ents_to_set_bit_vec.begin(),
                                    ents_to_set_bit_vec.end());
 
      } else {
        // if this element was not refined or was refined with different
        // patterns of split edges create new elements
 
        parent_tris_refined.emplace_back(tit);
        for (int tt = 0; tt != nb_new_tris; ++tt) {
          for (auto nn : {0, 1, 2})
            vertices_of_created_tris.emplace_back(new_tets_conns[3 * tt + nn]);
        }
        parent_edges_bit_vec.emplace_back(parent_edges_bit);
        nb_new_tris_vec.emplace_back(nb_new_tris);
      }
    } else {
 
      if (debug) {
        RefEntity_multiIndex::iterator tit_miit;
        tit_miit = refined_ents_ptr->find(tit);
        if (tit_miit == refined_ents_ptr->end())
          SETERRQ(PETSC_COMM_SELF, MOFEM_DATA_INCONSISTENCY,
                  "can not find this tet");
      }
 
      ents_to_set_bit.insert(tit);
    }
  }
 
  const int nb_new_tris = vertices_of_created_tris.size() / 3;
  EntityHandle start_e = 0;
 
  if (nb_new_tris) {
 
    // Create tets
    EntityHandle *conn_moab;
    CHKERR m_field.get_moab().query_interface(read_util);
    CHKERR read_util->get_element_connect(nb_new_tris, 3, MBTRI, 0, start_e,
                                          conn_moab);
    std::copy(vertices_of_created_tris.begin(), vertices_of_created_tris.end(),
              conn_moab);
    CHKERR read_util->update_adjacencies(start_e, nb_new_tris, 3, conn_moab);
    ents_to_set_bit.insert(start_e, start_e + nb_new_tris - 1);
 
    if (debug) {
      auto meshset_ptr = get_temp_meshset_ptr(moab);
      CHKERR moab.add_entities(*meshset_ptr, ents_to_set_bit);
      CHKERR moab.write_file("out_refinded_debug.vtk", "VTK", "",
                             meshset_ptr->get_ptr(), 1);
    }
  }
 
  // Create adj entities
  Range ents;
  for (auto d : {1}) {
    CHKERR moab.get_adjacencies(ents_to_set_bit, d, true, ents,
                                moab::Interface::UNION);
  }
 
  SetParent set_parent;
 
  // Set parrents and adjacencies. Iterate over all parent triangles.
  for (int idx = 0; idx != parent_tris_refined.size(); ++idx) {
 
    const auto tit = parent_tris_refined[idx]; // parent triangle
    const auto &parent_edges_bit =
        parent_edges_bit_vec[idx]; // marks what edges are refined
    const auto nb_new_tris =
        nb_new_tris_vec[idx]; // number of triangles created by refinement
 
    // Iterate over refined triangles
    std::array<EntityHandle, 4> ref_tris;
    for (int tt = 0; tt != nb_new_tris; ++tt, ++start_e)
      ref_tris[tt] = start_e;
 
    if (nb_new_tris) {
 
      CHKERR moab.tag_clear_data(cOre.get_th_RefBitEdge(), &ref_tris[0],
                                 nb_new_tris, &parent_edges_bit);
      CHKERR moab.tag_clear_data(cOre.get_th_RefParentHandle(), &ref_tris[0],
                                 nb_new_tris, &tit);
 
      // Hash map of nodes (RefEntity) by edges (EntityHandle)
      std::map<EntityHandle /*edge*/, EntityHandle /*node*/>
          map_ref_nodes_by_edges;
 
      // find parents for new edges and faces
      // get tet edges and faces
      Range tit_edges; // parent edges
      CHKERR moab.get_adjacencies(&tit, 1, 1, false, tit_edges);
      for (auto edge : tit_edges) {
        auto eit = ref_parent_ents_view.find(edge);
        if (eit != ref_parent_ents_view.end()) {
          map_ref_nodes_by_edges[(*eit)->getParentEnt()] = eit->get()->getEnt();
        }
      }
 
      Range edges_nodes[3];
      // for edges - add ref nodes
      // edges_nodes[ee] - contains all nodes on edge ee including mid nodes if
      // exist
      Range::iterator eit = tit_edges.begin();
      for (int ee = 0; eit != tit_edges.end(); eit++, ee++) {
        CHKERR moab.get_connectivity(&*eit, 1, edges_nodes[ee], true);
        auto map_miit = map_ref_nodes_by_edges.find(*eit);
        if (map_miit != map_ref_nodes_by_edges.end()) {
          edges_nodes[ee].insert(map_miit->second);
        }
      }
 
      // add ref nodes to tri
      // tet_nodes contains all nodes on tet including mid edge nodes
      Range tri_nodes;
      CHKERR moab.get_connectivity(&tit, 1, tri_nodes, true);
      for (auto map_miit = map_ref_nodes_by_edges.begin();
           map_miit != map_ref_nodes_by_edges.end(); map_miit++) {
        tri_nodes.insert(map_miit->second);
      }
 
      Range ref_edges; // edges on all new tets
      // Get all all edges of refined tets
      CHKERR moab.get_adjacencies(ref_tris.data(), nb_new_tris, 1, false,
                                  ref_edges, moab::Interface::UNION);
 
      // Check for all ref edge and set parents
      for (auto reit = ref_edges.begin(); reit != ref_edges.end(); ++reit) {
        Range ref_edges_nodes;
        CHKERR moab.get_connectivity(&*reit, 1, ref_edges_nodes, true);
        // Check if ref edge is an coarse edge (loop over coarse tet edges)
        int ee = 0;
        for (; ee < 3; ee++) {
          // Two nodes are common (node[0],node[1],ref_node (if exist))
          // this tests if given edge is contained by edge of refined
          // triangle
          if (intersect(edges_nodes[ee], ref_edges_nodes).size() == 2) {
            EntityHandle edge = tit_edges[ee];
            CHKERR set_parent(*reit, edge, refined_ents_ptr, cOre);
            break;
          }
        }
        if (ee < 3)
          continue; // this refined edge is contained by edge of triangle
 
        // check if ref edge is in coarse tetrahedral (i.e. that is internal
        // edge of refined tetrahedral)
        if (intersect(tri_nodes, ref_edges_nodes).size() == 2) {
          CHKERR set_parent(*reit, tit, refined_ents_ptr, cOre);
          continue;
        }
 
        // Refined edge is not child of any edge, face or tetrahedral, this is
        // Impossible edge
        SETERRQ(m_field.get_comm(), MOFEM_DATA_INCONSISTENCY,
                "impossible refined edge");
      }
    }
  }
 
  CHKERR set_parent(refined_ents_ptr);
  CHKERR m_field.getInterface<BitRefManager>()->setBitRefLevel(
      ents_to_set_bit, bit, true, verb, &ents);
 
  MoFEMFunctionReturn(0);
}

refineTrisHangingNodes() [1/2]

MoFEMErrorCode MoFEM::MeshRefinement::refineTrisHangingNodes	(	const EntityHandle	meshset,
		const BitRefLevel &	bit,
		int	verb = QUIET,
		const bool	debug = false )

refine TRI in the meshset

Parameters

Range	of entities to refine
BitRefLevel	bit level of created entities
verb	verbosity level

Definition at line 1003 of file MeshRefinement.cpp.

                                                         {
  Interface &m_field = cOre;
  moab::Interface &moab = m_field.get_moab();
  MoFEMFunctionBegin;
  Range tris;
  CHKERR moab.get_entities_by_type(meshset, MBTRI, tris, false);
  CHKERR refineTrisHangingNodes(tris, bit, verb, debug);
  MoFEMFunctionReturn(0);
}

refineTrisHangingNodes() [2/2]

MoFEMErrorCode MoFEM::MeshRefinement::refineTrisHangingNodes	(	const Range &	tris,
		const BitRefLevel &	bit,
		int	verb = QUIET,
		const bool	debug = false )

refine TRI in the meshset

Parameters

Range	of entities to refine
BitRefLevel	bit level of created entities
verb	verbosity level

Definition at line 965 of file MeshRefinement.cpp.

                                                                        {
 
  MoFEMFunctionBegin;
 
  auto set_edge_bits = [](moab::Interface &moab,
                          RefEntity_multiIndex_view_by_ordered_parent_entity
                              &ref_parent_ents_view,
                          EntityHandle tet, BitRefEdges &parent_edges_bit,
                          EntityHandle *edge_new_nodes, int *split_edges) {
    MoFEMFunctionBeginHot;
 
    for (int ee = 0; ee != 3; ++ee) {
      EntityHandle edge;
      CHKERR moab.side_element(tet, 1, ee, edge);
      auto eit = ref_parent_ents_view.find(edge);
      if (eit != ref_parent_ents_view.end()) {
        edge_new_nodes[ee] = (*eit)->getEnt();
        split_edges[parent_edges_bit.count()] = ee;
        parent_edges_bit.set(ee, 1);
      }
    }
 
    if (parent_edges_bit.count() < 3) {
      parent_edges_bit.reset();
    }
 
    MoFEMFunctionReturnHot(0);
  };
 
  CHKERR refineTris(_tris, bit, set_edge_bits, verb, debug);
 
  MoFEMFunctionReturn(0);
};

Member Data Documentation

cOre

MoFEM::Core& MoFEM::MeshRefinement::cOre

Definition at line 31 of file MeshRefinement.hpp.

---

The documentation for this struct was generated from the following files:

• src/interfaces/MeshRefinement.hpp
• src/interfaces/impl/MeshRefinement.cpp