v0.15.0
Loading...
Searching...
No Matches
MoFEM::PostProcGenerateRefMesh< MBTRI > Struct Reference

#include "src/post_proc/PostProcBrokenMeshInMoabBase.hpp"

Inheritance diagram for MoFEM::PostProcGenerateRefMesh< MBTRI >:
[legend]
Collaboration diagram for MoFEM::PostProcGenerateRefMesh< MBTRI >:
[legend]

Public Member Functions

MoFEMErrorCode generateReferenceElementMesh ()
 
 PostProcGenerateRefMeshBase ()
 
- Public Member Functions inherited from MoFEM::PostProcGenerateRefMeshBase
 PostProcGenerateRefMeshBase ()
 
virtual ~PostProcGenerateRefMeshBase ()=default
 
virtual MoFEMErrorCode getOptions (std::string prefix)
 

Additional Inherited Members

- Public Attributes inherited from MoFEM::PostProcGenerateRefMeshBase
std::vector< MatrixDoublelevelShapeFunctions
 
std::vector< MatrixDoublelevelGaussPtsOnRefMesh
 
std::vector< ublas::matrix< int > > levelRef
 
EntityHandle startingVertEleHandle
 
std::vector< double * > verticesOnEleArrays
 
EntityHandle startingEleHandle
 
EntityHandleeleConn
 
int countEle
 
int countVertEle
 
int nbVertices
 
int nbEles
 
PetscBool hoNodes
 
int defMaxLevel
 

Detailed Description

Definition at line 77 of file PostProcBrokenMeshInMoabBase.hpp.

Member Function Documentation

◆ generateReferenceElementMesh()

MoFEMErrorCode MoFEM::PostProcGenerateRefMesh< MBTRI >::generateReferenceElementMesh ( )
virtual

Implements MoFEM::PostProcGenerateRefMeshBase.

Definition at line 261 of file PostProcBrokenMeshInMoabBase.cpp.

261 {
263
264 const int max_level = defMaxLevel;
265
266 moab::Core core_ref;
267 moab::Interface &moab_ref = core_ref;
268
269 auto create_reference_element = [&moab_ref]() {
271 constexpr double base_coords[] = {
272
273 0, 0,
274 0,
275
276 1, 0,
277 0,
278
279 0, 1,
280 0
281
282 };
283 EntityHandle nodes[3];
284 for (int nn = 0; nn != 3; ++nn)
285 CHKERR moab_ref.create_vertex(&base_coords[3 * nn], nodes[nn]);
286 EntityHandle tri;
287 CHKERR moab_ref.create_element(MBTRI, nodes, 3, tri);
288
289 Range edges;
290 CHKERR moab_ref.get_adjacencies(&tri, 1, 1, true, edges,
291 moab::Interface::UNION);
292
294 };
295
296 CHKERR create_reference_element();
297
298 MoFEM::CoreTmp<-1> m_core_ref(moab_ref, PETSC_COMM_SELF, -2);
299 MoFEM::Interface &m_field_ref = m_core_ref;
300
301 auto refine_ref_triangles = [this, &m_field_ref, max_level]() {
303 // seed ref mofem database by setting bit ref level to reference
304 // tetrahedron
305 CHKERR
306 m_field_ref.getInterface<BitRefManager>()->setBitRefLevelByDim(
307 0, 2, BitRefLevel().set(0));
308
309 for (int ll = 0; ll != max_level; ++ll) {
310 MOFEM_TAG_AND_LOG_C("WORLD", Sev::noisy, "PostProc", "Refine Level %d",
311 ll);
312 Range edges;
313 CHKERR m_field_ref.getInterface<BitRefManager>()
314 ->getEntitiesByTypeAndRefLevel(BitRefLevel().set(ll),
315 BitRefLevel().set(), MBEDGE, edges);
316 Range tris;
317 CHKERR m_field_ref.getInterface<BitRefManager>()
318 ->getEntitiesByTypeAndRefLevel(BitRefLevel().set(ll),
319 BitRefLevel(ll).set(), MBTRI, tris);
320 // refine mesh
321 auto m_ref = m_field_ref.getInterface<MeshRefinement>();
322 CHKERR m_ref->addVerticesInTheMiddleOfEdges(edges,
323 BitRefLevel().set(ll + 1));
324 CHKERR m_ref->refineTris(tris, BitRefLevel().set(ll + 1));
325 }
327 };
328
329 // auto set_gauss_pts = [&](std::map<EntityHandle, int> &little_map) {
330 // MoFEMFunctionBegin;
331 // Range faces;
332 // CHKERR moab_ref.get_entities_by_type(0, MBTRI, faces, true);
333 // Range faces_nodes;
334 // CHKERR moab_ref.get_connectivity(faces, faces_nodes, false);
335 // auto &gauss_pts = levelGaussPtsOnRefMesh[0];
336 // gauss_pts.resize(faces_nodes.size(), 4, false);
337 // size_t gg = 0;
338 // for (auto node : faces_nodes) {
339 // CHKERR moab_ref.get_coords(&node, 1, &gauss_pts(gg, 0));
340 // little_map[node] = gg;
341 // ++gg;
342 // }
343 // gauss_pts = trans(gauss_pts);
344 // MoFEMFunctionReturn(0);
345 // };
346
347 auto get_ref_gauss_pts_and_shape_functions = [this, max_level, &moab_ref,
348 &m_field_ref]() {
350 for (int ll = 0; ll != max_level + 1; ++ll) {
351
352 Range tris;
353 CHKERR
354 m_field_ref.getInterface<BitRefManager>()->getEntitiesByTypeAndRefLevel(
355 BitRefLevel().set(ll), BitRefLevel().set(ll), MBTRI, tris);
356
357 if (hoNodes) {
358 EntityHandle meshset;
359 CHKERR moab_ref.create_meshset(MESHSET_SET, meshset);
360 CHKERR moab_ref.add_entities(meshset, tris);
361 CHKERR moab_ref.convert_entities(meshset, true, false, false);
362 CHKERR moab_ref.delete_entities(&meshset, 1);
363 }
364
365 Range elem_nodes;
366 CHKERR moab_ref.get_connectivity(tris, elem_nodes, false);
367
368 auto &gauss_pts = levelGaussPtsOnRefMesh[ll];
369 gauss_pts.resize(elem_nodes.size(), 3, false);
370 std::map<EntityHandle, int> little_map;
371 Range::iterator nit = elem_nodes.begin();
372 for (int gg = 0; nit != elem_nodes.end(); nit++, gg++) {
373 CHKERR moab_ref.get_coords(&*nit, 1, &gauss_pts(gg, 0));
374 little_map[*nit] = gg;
375 }
376 gauss_pts = trans(gauss_pts);
377
378 auto &ref_tris = levelRef[ll];
379 Range::iterator tit = tris.begin();
380 for (int tt = 0; tit != tris.end(); ++tit, ++tt) {
381 const EntityHandle *conn;
382 int num_nodes;
383 CHKERR moab_ref.get_connectivity(*tit, conn, num_nodes, false);
384 if (tt == 0) {
385 ref_tris.resize(tris.size(), num_nodes);
386 }
387 for (int nn = 0; nn != num_nodes; ++nn) {
388 ref_tris(tt, nn) = little_map[conn[nn]];
389 }
390 }
391
392 auto &shape_functions = levelShapeFunctions[ll];
393 shape_functions.resize(elem_nodes.size(), 3);
394 CHKERR ShapeMBTRI(&*shape_functions.data().begin(), &gauss_pts(0, 0),
395 &gauss_pts(1, 0), elem_nodes.size());
396 }
398 };
399
400 levelRef.resize(max_level + 1);
401 levelGaussPtsOnRefMesh.resize(max_level + 1);
402 levelShapeFunctions.resize(max_level + 1);
403
404 CHKERR refine_ref_triangles();
405 CHKERR get_ref_gauss_pts_and_shape_functions();
406
408}
#define MOFEM_TAG_AND_LOG_C(channel, severity, tag, format,...)
Tag and log in channel.
#define MoFEMFunctionBegin
First executable line of each MoFEM function, used for error handling. Final line of MoFEM functions ...
#define MoFEMFunctionReturn(a)
Last executable line of each PETSc function used for error handling. Replaces return()
#define CHKERR
Inline error check.
PetscErrorCode ShapeMBTRI(double *N, const double *X, const double *Y, const int G_DIM)
calculate shape functions on triangle
Definition fem_tools.c:182
std::bitset< BITREFLEVEL_SIZE > BitRefLevel
Bit structure attached to each entity identifying to what mesh entity is attached.
Definition Types.hpp:40
Deprecated interface functions.
std::vector< ublas::matrix< int > > levelRef
MoFEMErrorCode getInterface(IFACE *&iface) const
Get interface reference to pointer of interface.

◆ PostProcGenerateRefMeshBase()

MoFEM::PostProcGenerateRefMeshBase::PostProcGenerateRefMeshBase ( )

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