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/*=========================================================================
Program: Visualization Toolkit
Module: vtkStructuredAMRNeighbor.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
// .NAME vtkStructuredAMRNeighbor.h -- Stored AMR neighboring information
//
// .SECTION Description
// An internal, light-weight object used to store neighbor information for
// AMR grids.
//
// .SECTION See Also
// vtkStructuredNeighbor vtkStructuredAMRGridConnectivity
#ifndef VTKSTRUCTUREDAMRNEIGHBOR_H_
#define VTKSTRUCTUREDAMRNEIGHBOR_H_
#include "vtkFiltersGeometryModule.h" // For export macro
#include "vtkStructuredNeighbor.h"
class VTKFILTERSGEOMETRY_EXPORT vtkStructuredAMRNeighbor :
public vtkStructuredNeighbor
{
public:
// An enum that defines the neighbor relationship between the 2 grids.
enum NeighborRelationship
{
PARENT, // Neighbor fully contains this grid
PARTIALLY_OVERLAPPING_PARENT, // Neighbor partially contains this grid
CHILD, // This grid fully contains the neighbor
PARTIALLY_OVERLAPPING_CHILD, // This grid partially contains the neighbor
SAME_LEVEL_SIBLING, // Grids are adjacent at the same level
COARSE_TO_FINE_SIBLING, // Grid is adjacent with a finer neighbor
FINE_TO_COARSE_SIBLING, // Grid is adjacent with a coarser neighbor
UNDEFINED
};
// NOTE: The OverlapExtent stores the overlap w.r.t. the neighboring grid
// Consequently, GridOverlapExtent stores the overlap extent w.r.t. this grid.
int GridOverlapExtent[6]; // The overlap extent w.r.t. this grid
int GridLevel; // The level of the grid that has this neighbor
int NeighborLevel; // The level of the neighboring grid
int RelationShip; // The relationship of the grid with this neighbor
// Description:
// Default constructor.
vtkStructuredAMRNeighbor();
// Description:
// Custom constructor. Creates an AMR neighbor for a grid (block) at level
// GridLevel with the neighboring block at NeiID, NeighborLevel. The two
// neighbors overlap at the pre-computed overlap extent which is given w.r.t
// to the current grid (i.e., not the neighboring grid).
vtkStructuredAMRNeighbor(
const int gridLevel,
const int neiID, const int neighborLevel,
int gridOverlap[6], int neiOverlap[6],
int orient[3],
const int relationShip);
// Description:
// Copy constructor.
vtkStructuredAMRNeighbor(const vtkStructuredAMRNeighbor &N) :
vtkStructuredNeighbor(N) { *this = N; }
// Description:
// Destructor.
~vtkStructuredAMRNeighbor() {}
// Description:
// Overload assignment operator.
vtkStructuredAMRNeighbor& operator=(const vtkStructuredAMRNeighbor &N);
// Description:
// Returns the receive extent w.r.t. the grid's level, i.e., not the
// neighbor's level.
void GetReceiveExtentOnGrid(const int ng,int gridExtent[6],int ext[6]);
// Description:
// Returns the neighbor relationship as a string (usefule for debugging).
std::string GetRelationShipString();
// Description:
// Computes the SendExtent and RcvExtent for this neighbor. The method assumes
// that the overlap extent and orientation are already computed. Using this
// information, the method grows the overlap extent to form the Send and Rcv
// extents for this neighbor instance.
virtual void ComputeSendAndReceiveExtent(
int gridRealExtent[6], int gridGhostedExtent[6], int neiRealExtent[6],
int WholeExtent[6], const int N);
};
#endif /* VTKSTRUCTUREDAMRNEIGHBOR_H_ */
// VTK-HeaderTest-Exclude: vtkStructuredAMRNeighbor.h
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