SundancePeanoMesh2D.hpp

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/* @HEADER@ */
/*
 * SundancePeanoMesh2D.h
 *
 *  Created on: Sep 8, 2009
 *      Author: benk
 */

#ifndef SUNDANCEPEANOMESH2D_H_
#define SUNDANCEPEANOMESH2D_H_

#include "SundanceDefs.hpp"
#include "SundanceMeshBase.hpp"
#include "SundanceSet.hpp"
#include "SundancePoint.hpp"
#include "SundanceCellType.hpp"

#ifdef HAVE_SUNDANCE_PEANO

#include "SundancePeanoInterface2D.h"

namespace Sundance
{
class PeanoMesh2D : public MeshBase{
public:

  /**
   * The constuctor for the Peano grid*/
  PeanoMesh2D(int dim,
    const MPIComm& comm,
    const MeshEntityOrder& order);

  /**
   * The constuctor for the Peano grid in 2D*/
  void createMesh(
    double position_x,
    double position_y,
    double offset_x,
    double offset_y,
    double resolution);

  /** Dtor */
  virtual ~PeanoMesh2D();

  /**
   * Get the number of cells having dimension dim
   */
  virtual int numCells(int dim) const;

  /**
   * Return the position of the i-th node
   */
  virtual Point nodePosition(int i) const;

  /**
   * Return a view of the i-th node's position
   */
  const double* nodePositionView(int i) const;



  /**
   * Compute the jacobians of a batch of cells, returning the
   * result via reference argument
   *
   * @param cellDim dimension of the cells whose Jacobians are to
   * be computed
   * @param cellLID local indices of the cells for which Jacobians
   * are to be computed
   * @param jBatch reference to the resulting Jacobian batch
   */
  virtual void getJacobians(int cellDim, const Array<int>& cellLID,
    CellJacobianBatch& jBatch) const;

  /**
   * Compute the diameters of a batch of cells,
   * result via reference argument
   *
   * @param cellDim dimension of the cells whose diameters are to
   * be computed
   * @param cellLID local indices of the cells for which diameters
   * are to be computed
   * @param diameters reference to the array of cell diameters
   */
  virtual void getCellDiameters(int cellDim, const Array<int>& cellLID,
    Array<double>& cellDiameters) const;


  /**
   * Map reference quadrature points to physical points on the
   * given cells.
   */
  virtual void pushForward(int cellDim, const Array<int>& cellLID,
    const Array<Point>& refQuadPts,
    Array<Point>& physQuadPts) const;

  /**
   * Return the rank of the processor that owns the given cell
   */
  virtual int ownerProcID(int cellDim, int cellLID) const;

  /**
   * Return the number of facets of the given cell
   */
  virtual int numFacets(int cellDim, int cellLID,
    int facetDim) const;

  /**
   * Return the local ID of a facet cell
   * @param cellDim dimension of the cell whose facets are being obtained
   * @param cellLID local index of the cell whose
   * facets are being obtained
   * @param facetDim dimension of the desired facet
   * @param facetIndex index into the list of the cell's facets
   * @param facetOrientation orientation of the facet as seen from
   * the given cell (returned via reference)
   */
  virtual int facetLID(int cellDim, int cellLID,
    int facetDim, int facetIndex,
    int& facetOrientation) const;

  /**
   * Return by reference argument an array containing&(elemVerts_.value(cellLID, 0))
   * the LIDs of the facetDim-dimensional facets of the
   * given batch of cells
   */
  virtual void getFacetLIDs(int cellDim,
    const Array<int>& cellLID,
    int facetDim,
    Array<int>& facetLID,
    Array<int>& facetSign) const;

  /**
   * Return a view of an element's zero-dimensional facets,
   * @return an array of integers with the indexes of the points which for it
   */
  const int* elemZeroFacetView(int cellLID) const;

  /**
   * Return the number of maximal cofacets of the given cell
   */
  virtual int numMaxCofacets(int cellDim, int cellLID) const;

  /**
   * Return the local ID of a maximal cofacet cell
   * @param cellDim dimension of the cell whose cofacets are being obtained
   * @param cellLID local index of the cell whose
   * cofacets are being obtained
   * @param cofacetIndex which maximal cofacet to get
   * @param facetIndex index of the cell cellLID into the list of the
   * maximal cell's facets
   */
  virtual int maxCofacetLID(int cellDim, int cellLID,
    int cofacetIndex,
    int& facetIndex) const;
  /**
   * Get the LIDs of the maximal cofacets for a batch of codimension-one
   * cells.
   *
   * \param cellLIDs [in] array of LIDs of the cells whose cofacets are
   * being obtained
   * \param cofacets [out] the batch of cofacets
   */
  virtual void getMaxCofacetLIDs(const Array<int>& cellLIDs,
    MaximalCofacetBatch& cofacets) const;


  /**
   * Find the cofacets of the given cell
   * @param cellDim dimension of the cell whose cofacets are being obtained
   * @param cellLID local index of the cell whose
   * cofacets are being obtained
   * @param cofacetDim dimension of the cofacets to get
   * @param cofacetLIDs LIDs of the cofacet
   */
  void getCofacets(int cellDim, int cellLID,
    int cofacetDim, Array<int>& cofacetLIDs) const;

  /**
   * Find the local ID of a cell given its global index
   */
  virtual int mapGIDToLID(int cellDim, int globalIndex) const;

  /**
   * Determine whether a given cell GID exists on this processor
   */
  virtual bool hasGID(int cellDim, int globalIndex) const;


  /**
   * Find the global ID of a cell given its local index
   */
  virtual int mapLIDToGID(int cellDim, int localIndex) const;

  /**
   * Get the type of the given cell
   */
  virtual CellType cellType(int cellDim) const;


  /** Get the label of the given cell */
  virtual int label(int cellDim, int cellLID) const;

  /** Get the labels for a batch of cells */
  virtual void getLabels(int cellDim, const Array<int>& cellLID,
    Array<int>& labels) const;



  /** Get the list of all labels defined for cells of the given dimension */
  virtual Set<int> getAllLabelsForDimension(int cellDim) const;

  /**
   * Get the cells associated with a specified label. The array
   * cellLID will be filled with those cells of dimension cellDim
   * having the given label.
   */
  virtual void getLIDsForLabel(int cellDim, int label, Array<int>& cellLIDs) const;


  /** Set the label of the given cell */
  virtual void setLabel(int cellDim, int cellLID, int label);

  /** Coordinate intermediate cell definitions across processors  */
  virtual void assignIntermediateCellGIDs(int cellDim);

  /** */
  virtual bool hasIntermediateGIDs(int dim) const;


private:

  /** The dimension of the grid*/
  int _dimension;

  /** The communicator */
  const MPIComm& _comm;

  /** This pointer is the pointer to the 2 dimensional Peano mesh*/
  SundancePeanoInterface2D *_peanoMesh;

  /** The unique resolution in each dimension */
  double _uniqueResolution;

  /** The Point which is used as a returned argument */
  static Point returnPoint;

};
}

#endif /* HAVE_SUNDANCE_PEANO */
#endif /* SUNDANCEPEANOMESH2D_H_ */