示例#1
0
static double F_Lc_aniso(GEdge *ge, double t)
{
#if defined(HAVE_ANN)
  FieldManager *fields = ge->model()->getFields();
  BoundaryLayerField *blf = 0;
  Field *bl_field = fields->get(fields->getBoundaryLayerField());
  blf = dynamic_cast<BoundaryLayerField*> (bl_field);
#else
  bool blf = false;
#endif


  GPoint p = ge->point(t);
  SMetric3 lc_here;

  Range<double> bounds = ge->parBounds(0);
  double t_begin = bounds.low();
  double t_end = bounds.high();

  if(t == t_begin)
    lc_here = BGM_MeshMetric(ge->getBeginVertex(), t, 0, p.x(), p.y(), p.z());
  else if(t == t_end)
    lc_here = BGM_MeshMetric(ge->getEndVertex(), t, 0, p.x(), p.y(), p.z());
  else
    lc_here = BGM_MeshMetric(ge, t, 0, p.x(), p.y(), p.z());

#if defined(HAVE_ANN)
  if (blf && !blf->isEdgeBL(ge->tag())){
    SMetric3 lc_bgm;
    blf->computeFor1dMesh ( p.x(), p.y(), p.z() , lc_bgm );
    lc_here = intersection_conserveM1 (lc_here, lc_bgm );
  }
#endif

  SVector3 der = ge->firstDer(t);
  double lSquared = dot(der, lc_here, der);
  return sqrt(lSquared);
}
示例#2
0
// Main function for fast curving
void HighOrderMeshFastCurving(GModel *gm, FastCurvingParameters &p)
{
  double t1 = Cpu();

  Msg::StatusBar(true, "Optimizing high order mesh...");
  std::vector<GEntity*> allEntities;
  gm->getEntities(allEntities);

  // Compute vert. -> elt. connectivity
  Msg::Info("Computing connectivity...");
  std::map<MVertex*, std::vector<MElement *> > vertex2elements;
  for (int iEnt = 0; iEnt < allEntities.size(); ++iEnt)
    calcVertex2Elements(p.dim, allEntities[iEnt], vertex2elements);

  // Get BL field (if any)
  BoundaryLayerField *blf = getBLField(gm);

  // Build multimap of each geometric entity to its boundaries
  std::multimap<GEntity*,GEntity*> entities;
  if (blf) {                                                                                    // BF field?
    for (int iEnt = 0; iEnt < allEntities.size(); ++iEnt) {
      GEntity* &entity = allEntities[iEnt];
      if (entity->dim() == p.dim && (!p.onlyVisible || entity->getVisibility()))                // Consider only "domain" entities
        if (p.dim == 2) {                                                                       // "Domain" face?
          std::list<GEdge*> edges = entity->edges();
          for (std::list<GEdge*>::iterator itEd = edges.begin(); itEd != edges.end(); itEd++)   // Loop over model boundary edges
            if (blf->isEdgeBL((*itEd)->tag()))                                                  // Already skip model edge if no BL there
              entities.insert(std::pair<GEntity*,GEntity*>(entity, *itEd));
        }
        else if (p.dim == 3) {                                                                  // "Domain" region?
          std::list<GFace*> faces = entity->faces();
          for (std::list<GFace*>::iterator itF = faces.begin(); itF != faces.end(); itF++)      // Loop over model boundary faces
            if (blf->isFaceBL((*itF)->tag()))                                                   // Already skip model face if no BL there
              entities.insert(std::pair<GEntity*,GEntity*>(entity, *itF));
        }
    }
  }
  else {                                                                                        // No BL field
    for (int iEnt = 0; iEnt < allEntities.size(); ++iEnt) {
      GEntity* &entity = allEntities[iEnt];
      if (entity->dim() == p.dim-1 && (!p.onlyVisible || entity->getVisibility()))              // Consider boundary entities
        entities.insert(std::pair<GEntity*,GEntity*>(0, entity));
    }
  }

  // Build normals if necessary
  std::map<GEntity*, std::map<MVertex*, SVector3> > normVertEnt;                                // Normal to each vertex for each geom. entity
  if (!blf) {
    Msg::Warning("Boundary layer data not found, trying to detect columns");
    buildNormals(vertex2elements, entities, p, normVertEnt);
  }

  // Loop over geometric entities
  for (std::multimap<GEntity*,GEntity*>::iterator itBE = entities.begin();
       itBE != entities.end(); itBE++) {
    GEntity *domEnt = itBE->first, *bndEnt = itBE->second;
    BoundaryLayerColumns *blc = 0;
    if (blf) {
      Msg::Info("Curving elements for entity %d bounding entity %d...",
                bndEnt->tag(), domEnt->tag());
      if (p.dim == 2)
        blc = domEnt->cast2Face()->getColumns();
      else if (p.dim == 3)
        blc = domEnt->cast2Region()->getColumns();
      else
        Msg::Error("Fast curving implemented only in dim. 2 and 3");
    }
    else
      Msg::Info("Curving elements for boundary entity %d...", bndEnt->tag());
    std::map<MVertex*, SVector3> &normVert = normVertEnt[bndEnt];
    curveMeshFromBnd(vertex2elements, normVert, blc, bndEnt, p);
  }

  double t2 = Cpu();

  Msg::StatusBar(true, "Done curving high order mesh (%g s)", t2-t1);
}