Пример #1
0
void TPZQuadraticQuad::InsertExampleElement(TPZGeoMesh &gmesh, int matid, TPZVec<REAL> &lowercorner, TPZVec<REAL> &size)
{
    TPZManVector<REAL,3> co(3),shift(3),scale(3);
    TPZManVector<int64_t,4> nodeindexes(NCornerNodes);
    for (int i=0; i<3; i++) {
        scale[i] = size[i]/3.;
        shift[i] = size[i]/2.+lowercorner[i];
    }
    
    for (int i=0; i<NCornerNodes; i++) {
        ParametricDomainNodeCoord(i, co);
        co.Resize(3,0.);
        for (int j=0; j<3; j++) {
            co[j] = shift[j]+scale[j]*co[j]+(rand()*0.2/RAND_MAX)-0.1;
        }
        nodeindexes[i] = gmesh.NodeVec().AllocateNewElement();
        gmesh.NodeVec()[nodeindexes[i]].Initialize(co, gmesh);
    }
    int64_t index;
    CreateGeoElement(gmesh, EQuadrilateral, nodeindexes, matid, index);
    TPZGeoEl *gel = gmesh.Element(index);
    int nsides = gel->NSides();
    for (int is=0; is<nsides; is++) {
        gel->SetSideDefined(is);
    }
    gel = TPZChangeEl::ChangeToQuadratic(&gmesh, index);
    for (int node = gel->NCornerNodes(); node < gel->NNodes(); node++) {
        TPZManVector<REAL,3> co(3);
        gel->NodePtr(node)->GetCoordinates(co);
        for (int i=0; i<3; i++) {
            co[i] += (0.2*rand())/RAND_MAX - 0.1;
        }
        gel->NodePtr(node)->SetCoord(co);
    }
}
Пример #2
0
int64_t  TPZGeoCloneMesh::CloneElement(TPZGeoEl *orgel){
    int64_t i,j;
//    int nnod = orgel->NNodes();
    //  cout << "Original element nodes = " << nnod << endl;
    if(HasElement(orgel)) return Index(fMapElements[orgel]);
    
    
    // Create a cloned element
    TPZGeoEl *el = InitializeClone(orgel);
    int64_t elindex = Index(el);
    
    //  cout << "\nClonned element\n";
    //  el->Print(cout);
    
    //fill the map
    fMapElements[orgel] = el;
    if(elindex >= fReferenceElement.NElements()) {
        fReferenceElement.Resize(elindex+1,0);
    }	
    fReferenceElement[elindex] = orgel;
    //fill the neighbours
    for (i=0;i<orgel->NSides();i++){
        el->SetSideDefined(i);
        TPZGeoElSide neig = orgel->Neighbour(i);
        if(!neig.Element()) continue;
        // insert all neighbours which have been cloned as neighbours
        // THIS IS OVERKILL it would be suficient to insert a single neighbour
        while(neig.Element() != orgel) {
            // verify if neig.Element has been cloned
            if (HasElement((neig.Element()))){
                TPZGeoElSide sid(el,i);
                //          sid.SetConnectivity(sid);
                //SetNeighbour(i,neig);
                TPZGeoElSide localneig(fMapElements[neig.Element()],neig.Side());
                if(!sid.NeighbourExists(localneig)) {
                    sid.SetConnectivity(localneig);
                }
            }
            neig = neig.Neighbour();
        }
    }
    //loop over the sons
    if (orgel->HasSubElement()){
        int subel = orgel->NSubElements();
        for (j=0;j<subel;j++){
            TPZGeoEl *gelson = orgel->SubElement(j);
            CloneElement(gelson);
            fMapElements[gelson]->SetFather(el);
            fMapElements[gelson]->SetFather(el->Index());
            el->SetSubElement(j,fMapElements[gelson]);
        }
    }
    
    //  el->Print(cout);
    return elindex;
}