[Gmsh] anisotropic 2D mesh at face boundary

[walter steffe]

> Have you tryed gmsh -algo bamg ?

Yes I am using bamg.
The choice in done in the following lines

   int argc=3;
   char *argv[argc];
   char str1[]="-algo";  argv[1]=str1;
   char str2[]="bamg";  argv[2]=str2;
   GmshInitialize(argc, argv);

then I have:

   GModel *gm=new GModel();
   gm->importOCCShape(&theFaces);
      mesher_setTags(gm, ocaf->indexedFaces, ocaf->indexedEdges);
      for(GModel::fiter fit = gm->firstFace(); fit != gm->lastFace(); ++fit){
         GFace *gf=*fit;
         gf->meshAttributes.Method=MESH_UNSTRUCTURED;
   }
   CTX::instance()->mesh.lcFromPoints=0;
   CTX::instance()->mesh.lcFromCurvature=1;
   CTX::instance()->mesh.minCircPoints=6;
   CTX::instance()->mesh.anisoMax=2;
   CTX::instance()->mesh.smoothRatio=1.05;


   CTX::instance()->mesh.lcMax=meshsize;
   gm->mesh(1);

   mesher_setModelBLayer_(gm, meshsize);
   gm->mesh(2);


where mesher_setModelBLayer is:

void mesher_setModelBLayer_(GModel *gm, double meshsize){
  FieldManager *fields = gm->getFields();
  Field *attractor=fields->newField(0, "Attractor");
  for(GModel::eiter it = gm->firstEdge(); it != gm->lastEdge(); it++){
	  GEdge *ge=(*it);
	  attractor->options["EdgesList"]->list().push_back(ge->tag());
  }
  Field *blayer=fields->newField(1, "BoundaryLayer");
  blayer->options["IField"]->numericalValue(0);
  blayer->options["hwall_t"]->numericalValue(meshsize);
  blayer->options["hwall_n"]->numericalValue(meshsize/1.5);
  blayer->options["hfar"]->numericalValue(meshsize);
  blayer->options["ratio"]->numericalValue(1.0);
  fields->background_field=1;
}



Walter