DataCollector.cc

#include "DataCollector.h"
#include "Traverse.h"
#include "DOFVector.h"
#include "SurfaceRegion_ED.h"
#include "ElementRegion_ED.h"
#include "Projection.h"

namespace AMDiS {

  DataCollector::DataCollector(const FiniteElemSpace *feSpace,
			       DOFVector<double> *values,
			       int level,
			       Flag traverseFlag,
			       bool (*writeElem)(ElInfo*))
    : writeElem_(writeElem)
  {
    FUNCNAME("DataCollector::DataCollector()");

    TEST_EXIT(feSpace)("no feSpace\n");
    TEST_EXIT(values)("no value Vector\n");
   
    // === get mesh  ===    
    mesh_ = feSpace->getMesh();

    // === get admin ===    
    localAdmin_ = const_cast<DOFAdmin*>(feSpace->getAdmin());
    // === create vertex info vector ===
    vertexInfos_ = new DOFVector< std::list<VertexInfo> >(feSpace, "vertex infos");

    interpPointInd_ = new DOFVector<int>(feSpace, "interpolation point indices");
    interpPointCoords_ = new DOFVector< std::list<WorldVector<double> > >(feSpace, "interpolation point coordinates");
    dofCoords_ = new DOFVector< std::list<WorldVector<double> > >(feSpace, "dof coords");

    dim_ = mesh_->getDim();
    
    nPreDofs_ = localAdmin_->getNumberOfPreDOFs(VERTEX);
    nVertices_ = 0;
    nElements_ = 0;
    nInterpPoints_ = 0;
    nConnections_ = 0;

    feSpace_ = feSpace;
    values_ = values;
    level_ = level;
    traverseFlag_ = traverseFlag;

    elementDataCollected_ = false;
    valueDataCollected_ = false;
    periodicDataCollected_ = false;

    vertexCoords = new WorldVector<double>;
  } 

  DataCollector::~DataCollector()
  {
    delete vertexInfos_;
    delete interpPointInd_;
    delete interpPointCoords_;
    delete dofCoords_;
    delete vertexCoords;
  }

  void DataCollector::fillAllData()
  {
    if (!elementDataCollected_)
      startCollectingElementData();

    if (!periodicDataCollected_)
      startCollectingPeriodicData();

    if (!valueDataCollected_)
      startCollectingValueData();
  }

  void DataCollector::startCollectingElementData()
  {
    FUNCNAME("DataCollector::startCollectingElementData()");

    Flag flag = traverseFlag_;
    flag |= 
      Mesh::FILL_NEIGH      | 
      Mesh::FILL_COORDS     |
      Mesh::FILL_OPP_COORDS |
      Mesh::FILL_BOUND;

    elements_.resize(0, dim_);

    TraverseStack stack;

    // Traverse elements to create continuous element indices
    ElInfo *elInfo = stack.traverseFirst(mesh_, level_, flag);
    while (elInfo) {
      if (!writeElem_ || writeElem_(elInfo))
	outputIndices_[elInfo->getElement()->getIndex()] = nElements_++;
      elInfo = stack.traverseNext(elInfo);
    }

    // Traverse elements to create element information
    elInfo = stack.traverseFirst(mesh_, level_, flag);

    while (elInfo) {
      if (!writeElem_ || writeElem_(elInfo))
	addElementData(elInfo);

      elInfo = stack.traverseNext(elInfo);
    }

    elementDataCollected_ = true;
  }

  void DataCollector::startCollectingValueData()
  {
    FUNCNAME("DataCollector::startCollectingValueData()");

    DOFVector<int>::Iterator intPointIt(interpPointInd_, USED_DOFS);
    for (intPointIt.reset(); !intPointIt.end(); ++intPointIt)
      (*intPointIt) = -1;

    interpPoints_.clear();

    basisFcts_ = const_cast<BasisFunction*>(feSpace_->getBasisFcts());
    nBasisFcts_ = basisFcts_->getNumber();
    localDOFs_ = new DegreeOfFreedom[nBasisFcts_];
  
    TraverseStack stack;

    // Traverse elements to add value information and to mark
    // interpolation points.
    ElInfo *elInfo = stack.traverseFirst(mesh_, level_, 
					 traverseFlag_ | Mesh::FILL_COORDS);
    while (elInfo) {
      if (!writeElem_ || writeElem_(elInfo))
	addValueData(elInfo);
      elInfo = stack.traverseNext(elInfo);
    }

    // If there are interpolation points, add them to the corresponding 
    // data array.
    if (nInterpPoints_ > 0) {
      // Remove all interpolation marks and, instead, set to each
      // interpolation point its continous index starting from 0.
      int i = 0;
      for (intPointIt.reset(); !intPointIt.end(); ++intPointIt)
	if (*intPointIt == -3)
	  *intPointIt = i++;
      
      // Traverse elements to create interpolation values.
      elInfo = stack.traverseFirst(mesh_, level_, traverseFlag_ | Mesh::FILL_COORDS);
      while (elInfo) {
	if (!writeElem_ || writeElem_(elInfo))
	  addInterpData(elInfo);
	elInfo = stack.traverseNext(elInfo);
      }
    }
   
    delete [] localDOFs_;
    valueDataCollected_ = true;
  }

  void DataCollector::startCollectingPeriodicData()
  {    
    FUNCNAME("DataCollector::startCollectingPeriodicData()");

    periodicConnections_.clear();
    
    TraverseStack stack;
    ElInfo *elInfo = stack.traverseFirst(mesh_, level_, traverseFlag_);
    while (elInfo) {
      if (!writeElem_ || writeElem_(elInfo)) {
	LeafDataPeriodic *ldp = dynamic_cast<LeafDataPeriodic*>
	  (elInfo->getElement()->
	   getElementData()->
	   getElementData(PERIODIC));
	
	if (ldp) {
	  nConnections_ += dynamic_cast<LeafDataPeriodic*>(ldp)->getInfoList().size();
	}

	periodicConnections_.push_back(DimVec<bool>(dim_, DEFAULT_VALUE, false));
      }
      elInfo = stack.traverseNext(elInfo);
    }   

    nConnections_ /= 2;

    periodicInfos_.clear();

    Flag flag = traverseFlag_;
    flag |= 
      Mesh::FILL_COORDS    |
      Mesh::FILL_OPP_COORDS|
      Mesh::FILL_NEIGH     | 
      Mesh::FILL_BOUND;

    elInfo = stack.traverseFirst(mesh_, level_, flag);
    while (elInfo) {
      if (!writeElem_ || writeElem_(elInfo))
	addPeriodicData(elInfo);
      elInfo = stack.traverseNext(elInfo);
    }   

    periodicDataCollected_ = true;
  }

  void DataCollector::addElementData(ElInfo* elInfo)
  {
    FUNCNAME("DataCollector::addElementData()");

    const DegreeOfFreedom **dof = elInfo->getElement()->getDOF();
    DegreeOfFreedom vertexDOF;
    WorldVector<double> vertexCoords;

    // create ElementInfo
    ElementInfo elementInfo(dim_);
    
    // read element region
    ElementData *ed = elInfo->getElement()->getElementData(ELEMENT_REGION);
    
    if (ed) {
      elementInfo.elementRegion = dynamic_cast<ElementRegion_ED*>(ed)->getRegion();
    } else {
      elementInfo.elementRegion = -1;
    }
   
    // read surface regions to element info
    ed = elInfo->getElement()->getElementData(SURFACE_REGION);
    elementInfo.surfaceRegions.set(-1);
    while (ed) {
      SurfaceRegion_ED *sr = dynamic_cast<SurfaceRegion_ED*>(ed);
      elementInfo.surfaceRegions[sr->getSide()] = sr->getRegion();
      ed = ed->getDecorated(SURFACE_REGION);
    }

    // for all vertices
    for (int i = 0; i < dim_ + 1; i++) {
      // get coords of this vertex
      vertexCoords = elInfo->getCoord(i);
      
      // get dof index of this vertex
      vertexDOF = dof[i][nPreDofs_];
     
      // search for coords at this dof
      std::list<VertexInfo>::iterator it =
	  find((*vertexInfos_)[vertexDOF].begin(),
	       (*vertexInfos_)[vertexDOF].end(),
	       vertexCoords);
      
      // coords not yet in list?
      if (it == (*vertexInfos_)[vertexDOF].end()) {
	// create new vertex info and increment number of vertices
	VertexInfo newVertexInfo = {vertexCoords, nVertices_};

	// add new vertex info to list
	(*vertexInfos_)[vertexDOF].push_front(newVertexInfo);
	
	// set iterator to new vertex info
	it = (*vertexInfos_)[vertexDOF].begin();	

	nVertices_++;
      }
      
      // fill element info
      elementInfo.vertexInfo[i] = it;
      elementInfo.boundary[i] = elInfo->getBoundary(i);
      elementInfo.projection[i] = elInfo->getProjection(i);
      elementInfo.neighbour[i] = 
	elInfo->getNeighbour(i) ?
	outputIndices_[elInfo->getNeighbour(i)->getIndex()] :
	-1;
    }
    
    if (dim_ == 3)
      elementInfo.type = (dynamic_cast<ElInfo3d*>(elInfo)->getType());

    // remember element info
    elements_.push_back(elementInfo);
  }

  void DataCollector::addValueData(ElInfo *elInfo)
  {
    FUNCNAME("DataCollector::addValueData()");
    
    basisFcts_->getLocalIndices(elInfo->getElement(), localAdmin_, localDOFs_);

    // First, traverse all DOFs at the vertices of the element, determine
    // their coordinates and add them to the corresponding entry in dofCoords_.
    for (int i = 0; i < mesh_->getGeo(VERTEX); i++) {
      DegreeOfFreedom dofi = localDOFs_[i];

      (*interpPointInd_)[dofi] = -2; // mark as vertex
      
      // get coords of this vertex
      *vertexCoords = elInfo->getCoord(i);

      // search for coords at this dof
      std::list<WorldVector<double> >::iterator it =
	  find((*dofCoords_)[dofi].begin(),
	       (*dofCoords_)[dofi].end(),
	       *vertexCoords);
      
      // coords not yet in list?
      if (it == (*dofCoords_)[dofi].end()) {
	// add new coords to list
	(*dofCoords_)[dofi].push_back(*vertexCoords);
      }
    }
   
    // Then, traverse all interpolation DOFs of the element, determine
    // their coordinates and add them to the corresponding entry in 
    // interpPointCoords_.
    for (int i = mesh_->getGeo(VERTEX); i < nBasisFcts_; i++) {
      DegreeOfFreedom dofi = localDOFs_[i];

      elInfo->coordToWorld(*basisFcts_->getCoords(i), *vertexCoords);
      
      if ((*interpPointInd_)[dofi] == -1) {
	// mark as interpolation point
	(*interpPointInd_)[dofi] = -3; 
	
	// search for interpolation point coordinates, and insert them to the 
	// dof-entry, if not contained in the list
	std::list<WorldVector<double> >::iterator it =
		find((*interpPointCoords_)[dofi].begin(),
		     (*interpPointCoords_)[dofi].end(),
		     *vertexCoords);
	
	if (it == (*interpPointCoords_)[dofi].end()) {
	  (*interpPointCoords_)[dofi].push_back(*vertexCoords); 
	  nInterpPoints_++;
	}
      }      
    }  
  }

  void DataCollector::addInterpData(ElInfo *elInfo)
  {
    FUNCNAME("DataCollector::addInterpData()");
    
    basisFcts_->getLocalIndices(elInfo->getElement(), localAdmin_, localDOFs_);

    std::vector<int> elemInterpPoints(0);
    for (int i = mesh_->getGeo(VERTEX); i < nBasisFcts_; i++)
      elemInterpPoints.push_back((*interpPointInd_)[localDOFs_[i]]);
    
    interpPoints_.push_back(elemInterpPoints); 
  }

  void DataCollector::addPeriodicData(ElInfo *elInfo) 
  {
    FUNCNAME("DataCollector::addPeriodicData");

    LeafDataPeriodic *ldp = dynamic_cast<LeafDataPeriodic*>
      (elInfo->getElement()->
       getElementData()->
       getElementData(PERIODIC));
    
    if (ldp) {
      std::list<LeafDataPeriodic::PeriodicInfo>::iterator it;
      
      for (it = dynamic_cast<LeafDataPeriodic*>(ldp)->getInfoList().begin();
	   it != dynamic_cast<LeafDataPeriodic*>(ldp)->getInfoList().end();
	   ++it) {

	int outputIndex = outputIndices_[elInfo->getElement()->getIndex()];
	int neighIndex  = outputIndices_[elInfo->
					 getNeighbour(it->elementSide)->
					 getIndex()];
	
	if (!periodicConnections_[outputIndex][it->elementSide]) {
	  PeriodicInfo periodicInfo;
	  
	  periodicInfo.mode = it->periodicMode;
	  periodicInfo.type = it->type;
	  periodicInfo.outputIndex = outputIndex;
	  periodicInfo.neighIndex = neighIndex;
	  periodicInfo.vertexMap.clear();
	  
	  periodicConnections_[outputIndex][it->elementSide] = true;
	  periodicConnections_
	    [neighIndex][elInfo->getOppVertex(it->elementSide)] = true;
	    
  
	  for (int i = 0; i < dim_; i++) {
	    int index1 = elInfo->getElement()->getVertexOfPosition(INDEX_OF_DIM(dim_ - 1, dim_),
								   it->elementSide,
								   i);
	    int dof1 = elInfo->getElement()->getDOF(index1, nPreDofs_);
	    
	    for (int j = 0; j < dim_; j++) {
	      int index2 = elInfo->getElement()->getVertexOfPosition(INDEX_OF_DIM(dim_ - 1, dim_),
								     elInfo->getOppVertex(it->elementSide),
								     j);
	      int dof2 = elInfo->getNeighbour(it->elementSide)->getDOF(index2, nPreDofs_);
	      
	      if ((dof1 == dof2) || (mesh_->associated(dof1, dof2))) {
		periodicInfo.vertexMap[index1] = index2;
		break;
	      } 
	    }
	  }
	  
	  periodicInfos_.push_back(periodicInfo);
	}
      }
    }
  }

  std::list<ElementInfo>* DataCollector::getElementInfos()
  {        
    if (!elementDataCollected_)
      startCollectingElementData();
      
    return &elements_;
  }

  DOFVector< std::list<VertexInfo> >* DataCollector::getVertexInfos()
  {
    if (!elementDataCollected_)
      startCollectingElementData();

    return vertexInfos_;
  }

  std::list<PeriodicInfo>* DataCollector::getPeriodicInfos()
  {
    if (!periodicDataCollected_)
      startCollectingPeriodicData();

    return &periodicInfos_;
  }

  int DataCollector::getNumberVertices()
  {
    if (!elementDataCollected_)
      startCollectingElementData();

    return nVertices_;
  }

  int DataCollector::getNumberElements()
  {
    if (!elementDataCollected_)
      startCollectingElementData();

    return nElements_;
  }

  int DataCollector::getNumberInterpPoints()
  {
    if (!valueDataCollected_)
      startCollectingValueData();

    return nInterpPoints_;
  }
  
  int DataCollector::getNumberConnections()
  {
    if (!periodicDataCollected_)
      startCollectingPeriodicData();

    return nConnections_;
  }

  const FiniteElemSpace* DataCollector::getFeSpace()
  {
    return feSpace_;
  }

  Mesh* DataCollector::getMesh()
  {
    return mesh_;
  }

  DOFVector<double>* DataCollector::getValues()
  {
    if (!valueDataCollected_)
      startCollectingValueData();

    return values_;
  }

  DOFVector< std::list<WorldVector<double> > >* DataCollector::getDofCoords()
  {
    if (!valueDataCollected_)
      startCollectingValueData();

    return dofCoords_;
  }

  DOFVector<int>* DataCollector::getInterpPointInd()
  {
    if (!valueDataCollected_)
      startCollectingValueData();

    return interpPointInd_;
  }

  DOFVector< std::list<WorldVector<double> > >* DataCollector::getInterpPointCoords()
  {
    if (!valueDataCollected_)
      startCollectingValueData();

    return interpPointCoords_;
  }

  std::vector< std::vector<int> >* DataCollector::getInterpPoints()
  {
    if (!valueDataCollected_)
      startCollectingValueData();

    return &interpPoints_;
  }
}