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/***************************************************************************
tnlGridEntityMeasureGetter.h - description
-------------------
begin : Jan 25, 2016
copyright : (C) 2016 by Tomas Oberhuber
email : tomas.oberhuber@fjfi.cvut.cz
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#ifndef TNLGRIDENTITYMEASUREGETTER_H
#define TNLGRIDENTITYMEASUREGETTER_H
template< typename Grid,
int EntityDimensions >
class tnlGridEntityMeasureGetter
{
};
/***
* Common implementation for vertices
*/
template< int Dimensions,
typename Real,
typename Device,
typename Index >
class tnlGridEntityMeasureGetter< tnlGrid< Dimensions, Real, Device, Index >, 0 >
{
public:
typedef tnlGrid< Dimensions, Real, Device, Index > GridType;
template< typename EntityType >
static const Real& getMeasure( const GridType& grid,
const EntityType& entity )
{
return 0.0;
}
};
/****
* 1D grid
*/
template< typename Real,
typename Device,
typename Index >
class tnlGridEntityMeasureGetter< tnlGrid< 1, Real, Device, Index >, 1 >
{
public:
typedef tnlGrid< 1, Real, Device, Index > GridType;
template< typename EntityType >
static const Real& getMeasure( const GridType& grid,
const EntityType& entity )
{
return grid.template getSpaceStepsProducts< 1 >();
}
};
/****
* 2D grid
*/
template< typename Real,
typename Device,
typename Index >
class tnlGridEntityMeasureGetter< tnlGrid< 2, Real, Device, Index >, 2 >
{
public:
typedef tnlGrid< 2, Real, Device, Index > GridType;
template< typename EntityType >
static const Real& getMeasure( const GridType& grid,
const EntityType& entity )
{
return grid.template getSpaceStepsProducts< 1, 1 >();
}
};
template< typename Real,
typename Device,
typename Index >
class tnlGridEntityMeasureGetter< tnlGrid< 2, Real, Device, Index >, 1 >
{
public:
typedef tnlGrid< 2, Real, Device, Index > GridType;
template< typename EntityType >
static const Real& getMeasure( const GridType& grid,
const EntityType& entity )
{
if( entity.getOrientation().x() )
return grid.template getSpaceStepsProducts< 0, 1 >();
else
return grid.template getSpaceStepsProducts< 1, 0 >();
}
};
/****
* 3D grid
*/
template< typename Real,
typename Device,
typename Index >
class tnlGridEntityMeasureGetter< tnlGrid< 3, Real, Device, Index >, 3 >
{
public:
typedef tnlGrid< 3, Real, Device, Index > GridType;
template< typename EntityType >
static const Real& getMeasure( const GridType& grid,
const EntityType& entity )
{
return grid.template getSpaceStepsProducts< 1, 1, 1 >();
}
};
template< typename Real,
typename Device,
typename Index >
class tnlGridEntityMeasureGetter< tnlGrid< 3, Real, Device, Index >, 2 >
{
public:
typedef tnlGrid< 3, Real, Device, Index > GridType;
template< typename EntityType >
static const Real& getMeasure( const GridType& grid,
const EntityType& entity )
{
if( entity.getOrientation().x() )
return grid.template getSpaceStepsProducts< 0, 1, 1 >();
if( entity.getOrientation().y() )
return grid.template getSpaceStepsProducts< 1, 0, 1 >();
else
return grid.template getSpaceStepsProducts< 1, 1, 0 >();
}
};
template< typename Real,
typename Device,
typename Index >
class tnlGridEntityMeasureGetter< tnlGrid< 3, Real, Device, Index >, 1 >
{
public:
typedef tnlGrid< 3, Real, Device, Index > GridType;
template< typename EntityType >
static const Real& getMeasure( const GridType& grid,
const EntityType& entity )
{
if( entity.getBasis().x() )
return grid.template getSpaceStepsProducts< 1, 0, 0 >();
if( entity.getBasis().y() )
return grid.template getSpaceStepsProducts< 0, 1, 0 >();
else
return grid.template getSpaceStepsProducts< 0, 0, 1 >();
}
};
#endif /* TNLGRIDENTITYMEASUREGETTER_H */