C++ TPZStack::Pop方法代码示例

void TPZAnalysisError::ExpandConnected(TPZStack<TPZCompElSide> &singel){
	int64_t nelem = singel.NElements();
	TPZStack<TPZGeoElSide> gelstack;
	TPZStack<TPZCompElSide> celstack;
	int64_t iel;
	for(iel=0; iel<nelem; iel++) {
		TPZCompElSide celside = singel[iel];
		TPZGeoElSide gelside;
		gelside = celside.Reference();
		if(!gelside.Exists()) continue;
		gelstack.Resize(0);
		cout << "This part needs to be fixed\n";
		//		gelside.Element()->LowerDimensionSides(gelside.Side(),gelstack);
		while(gelstack.NElements()) {
			TPZGeoElSide gelsideloc;
			gelsideloc = gelstack.Pop();
			gelsideloc.EqualLevelCompElementList(celstack,1,0);
			while(celstack.NElements()) {
				TPZCompElSide celsideloc = celstack.Pop();
				if(! celsideloc.Exists()) continue;
				int64_t nelsing = singel.NElements();
				int64_t smel;
				for(smel=0; smel<nelsing; smel++) if(singel[smel].Element() == celsideloc.Element()) break;
				if(smel != nelsing) singel.Push(celsideloc);
			}
		}
	}
}

//SingularElements(..)
void TPZAnalysisError::ZoomInSingularity(REAL csi, TPZCompElSide elside, REAL singularity_strength) {

	REAL hn = 1./pow(csi,1./singularity_strength);
	REAL Q=2.;
	REAL NcReal = log( 1.+(1./hn - 1.)*(Q - 1.) )/log(Q);
	int Nc = 0;
	while(REAL(Nc) < (NcReal+0.5)) Nc++;
	int minporder = 2;
	
	TPZStack<TPZCompElSide> ElToRefine;
	TPZStack<int> POrder;
	TPZStack<TPZGeoElSide> subelements;
	TPZStack<int64_t> csubindex;
	ElToRefine.Push(elside);
	POrder.Push(Nc);
	while(ElToRefine.NElements()) {
		/** Take the next element and its interpolation order from the stack*/
		TPZCompElSide curelside = ElToRefine.Pop();
		int curporder = POrder.Pop();
		if(!curelside.Exists()) continue;
		int64_t cindex = curelside.Element()->Index();
		if(cindex < 0) continue;
		
		/** Cast the element to an interpolated element if possible*/
		TPZCompEl *cel = curelside.Element();
		TPZInterpolatedElement *cintel = 0;
		cintel = dynamic_cast<TPZInterpolatedElement *> (cel);
		/** If the element is not interpolated, nothing to do */
		if(!cintel) continue;
		/** Set the interpolation order of the current element to curporder*/
		if(curporder == minporder) {
			cintel->PRefine(Nc);
			fSingular.Push(curelside);
		} else {
			cintel->PRefine(curporder);
			cintel->Divide(cindex,csubindex,1);
			/** Identify the subelements along the side and push them on the stack*/
		}
		TPZGeoElSide gelside = curelside.Reference();
		if(!gelside.Exists()) continue;
		gelside.GetSubElements2(subelements);
		int64_t ns = subelements.NElements();
		curporder--;
		int64_t is;
		for(is=0; is<ns; is++) {
			TPZGeoElSide sub = subelements[is];
			TPZCompElSide csub = sub.Reference();
			if(csub.Exists()) {
				ElToRefine.Push(csub);
				POrder.Push(curporder);
			}
		}
	}
	ExpandConnected(fSingular);
	
	/*
	 REAL H1_error,L2_error,estimate;
	 TPZBlock *flux=0;
	 int64_t nel = fElIndexes.NElements();
	 for(int64_t elloc=0;elloc<nel;elloc++) {
	 int64_t el = fElIndexes[elloc];
	 estimate = fElErrors[elloc];
	 REAL csi = estimate / fAdmissibleError;
	 REAL h = h_Parameter(intellist[el]);
	 REAL hn = h/pow(csi,1./.9);
	 REAL Nc = log( 1.+(h/hn - 1.)*(Q - 1.) )/log(Q);
	 if(hn > 1.3*h) hn = 2.0*h*hn / (h + hn);
	 REAL hsub = h;//100.0;//pode ser = h ; Cedric
	 TPZCompEl *locel = intellist[el];
	 //obter um subelemento que contem o ponto singular e tem tamanho <= hn
	 TPZAdmChunkVector<TPZCompEl *> sublist;
	 while(hsub > hn) {
	 TPZVec<int64_t> indexsubs;
	 int64_t index = locel->Index();
	 locel->Divide(index,indexsubs,1);
	 int64_t nsub = indexsubs.NElements();
	 TPZAdmChunkVector<TPZCompEl *> listsub(0);
	 for(int64_t k=0;k<nsub;k++) {
	 index = listsub.AllocateNewElement();
	 listsub[index] = Mesh()->ElementVec()[indexsubs[k]];
	 }
	 //existe um unico filho que contem o ponto singular
	 SingularElement(point,listsub,sublist);
	 hsub = h_Parameter(sublist[0]);
	 }
	 TPZInterpolatedElement *intel = (TPZInterpolatedElement *) locel;
	 intel->PRefine(Nc+1);
	 indexlist.Push(intel->Index());
	 //os elemento viz devem ter ordens menores a cel quanto mais longe de point
	 TPZInterpolatedElement *neighkeep,*neigh;
	 //feito s�para o caso 1d , extender para o caso geral
	 int dim = intel->Dimension();
	 if(dim != 1) {
	 cout << "TPZAnalysisError::Step3 not dimension implemented , dimension = " << intellist[el]->Dimension() << endl;
	 return ;//exit(1);
	 }
	 for(int side=0;side<2;side++) {
	 int ly = 1;
	 TPZGeoElSide neighside = intel->Reference()->Neighbour(side);
//.........这里部分代码省略.........