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/* This file is part of the OpenLB library
*
* Copyright (C) 2018 Adrian Kummerlaender
* E-mail contact: info@openlb.net
* The most recent release of OpenLB can be downloaded at
* <http://www.openlb.net/>
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef SUPER_PLANE_INTEGRAL_F_2D_H
#define SUPER_PLANE_INTEGRAL_F_2D_H
#include "core/vector.h"
#include "io/ostreamManager.h"
#include "geometry/superGeometry2D.h"
#include "functors/lattice/superBaseF2D.h"
#include "functors/analytical/indicator/indicatorBaseF2D.h"
#include "functors/lattice/indicator/superIndicatorF2D.h"
#include "functors/lattice/indicator/superIndicatorBaseF2D.h"
#include "functors/lattice/blockReduction2D1D.h"
#include "utilities/functorPtr.h"
#include "utilities/hyperplane2D.h"
#include "utilities/hyperplaneLattice2D.h"
namespace olb {
/// Surface integral of a subset of a interpolated hyperplane
template<typename T>
class SuperPlaneIntegralF2D : public SuperF2D<T> {
protected:
SuperGeometry2D<T>& _geometry;
/// Functor to be integrated on the line
FunctorPtr<SuperF2D<T>> _f;
/// Indicator describing relevant discrete integration points
FunctorPtr<SuperIndicatorF2D<T>> _integrationIndicatorF;
/// Indicator describing the relevant subset of the interpolated hyperplane
FunctorPtr<IndicatorF2D<T>> _subplaneIndicatorF;
/// Functor describing line to be interpolated and integrated
BlockReduction2D1D<T> _reductionF;
/// Origin vector as given by hyperplane definition, (0,0) in respect to the
/// subplane indicator _subplaneIndicatorF
/**
* Note: The reduced plane _reductionF calculates its own origin based on _origin
* as its spans the maximum size possible given the direction vector, origin and
* geometry size.
**/
Vector<T,2> _origin;
/// Direction vector u as given by hyperplane definition, normalized to h
Vector<T,2> _u;
/// Orthogonal vector to _u
Vector<T,2> _normal;
/// Subset of the discrete line points given by _reductionF as indicated
/// by _integrationIndicatorF. i.e. the points used to interpolate the hyperplane
std::vector<int> _rankLocalSubplane;
/// \returns true iff the given physical position is to be integrated
/**
* This is determined using the _integrationIndicatorF indicated subset of the 2d
* hyperplane reduced by _reductionF.
**/
bool isToBeIntegrated(const Vector<T,2>& physR, int iC);
public:
/// Primary constructor
/**
* All other constructors defer the actual construction to this constructor.
*
* \param f
* (non-)owning pointer or reference to SuperF2D<T>.
* \param hyperplaneLattice
* Parametrization of the hyperplane lattice to be interpolated.
* \param integrationIndicator
* (non-)owning pointer or reference to SuperIndicatorF2D<T>.
* Describes the set of lattice points relevant for integration.
* \param subplaneIndicator
* (non-)owning pointer or reference to IndicatorF2D<T>.
* Describes the relevant subplane of the interpolated hyperplane.
* \param mode
* Defines how the values of the discrete hyperplane are determined.
* i.e. if they are interpolated or read directly from lattice points.
* Note: BlockDataReductionMode::Analytical imposes restrictions on
* hyperplane definition and discretization. If you are not sure
* consider providing only a hyperplane defintion instead of both a
* definition and a discretization.
**/
SuperPlaneIntegralF2D(FunctorPtr<SuperF2D<T>>&& f,
SuperGeometry2D<T>& geometry,
const HyperplaneLattice2D<T>& hyperplaneLattice,
FunctorPtr<SuperIndicatorF2D<T>>&& integrationIndicator,
FunctorPtr<IndicatorF2D<T>>&& subplaneIndicator,
BlockDataReductionMode mode=BlockDataReductionMode::Analytical);
/// Constructor providing automatic lattice generation
/**
* \param f
* (non-)owning pointer or reference to SuperF2D<T>.
* \param hyperplane
* Parametrization of the hyperplane to be integrated.
* The lattice resolution is set to CuboidGeometry2D<T>::getMinDeltaR.
* \param integrationIndicator
* (non-)owning pointer or reference to SuperIndicatorF2D<T>.
* Describes the set of lattice points relevant for integration.
* \param subplaneIndicator
* (non-)owning pointer or reference to IndicatorF2D<T>.
* Describes the relevant subplane of the interpolated hyperplane.
* \param mode
* Defines how the values of the discrete hyperplane are determined.
* i.e. if they are interpolated or read directly from lattice points.
**/
SuperPlaneIntegralF2D(FunctorPtr<SuperF2D<T>>&& f,
SuperGeometry2D<T>& geometry,
const Hyperplane2D<T>& hyperplane,
FunctorPtr<SuperIndicatorF2D<T>>&& integrationIndicator,
FunctorPtr<IndicatorF2D<T>>&& subplaneIndicator,
BlockDataReductionMode mode=BlockDataReductionMode::Analytical);
/// Constructor providing automatic lattice generation and omitting subplane restriction
/**
* i.e. the intersection between geometry and hyperplane is integrated wherever _integrationIndicatorF allows.
*
* \param f
* (non-)owning pointer or reference to SuperF2D<T>.
* \param hyperplane
* Parametrization of the hyperplane to be integrated.
* The lattice resolution is set to the cuboid geometry's minDeltaR.
* \param integrationIndicator
* (non-)owning pointer or reference to SuperIndicatorF2D<T>.
* Describes the set of lattice points relevant for integration.
* \param mode
* Defines how the values of the discrete hyperplane are determined.
* i.e. if they are interpolated or read directly from lattice points.
**/
SuperPlaneIntegralF2D(FunctorPtr<SuperF2D<T>>&& f,
SuperGeometry2D<T>& geometry,
const Hyperplane2D<T>& hyperplane,
FunctorPtr<SuperIndicatorF2D<T>>&& integrationIndicator,
BlockDataReductionMode mode=BlockDataReductionMode::Analytical);
/// Constructor providing automatic lattice and material indicator instantiation
/**
* \param f (non-)owning pointer or reference to SuperF2D<T>.
* \param origin hyperplane origin origin
* \param u hyperplane direction vector
* \param materials material numbers relevant for hyperplane integration
* \param mode defines how the values of the discrete hyperplane are determined
**/
SuperPlaneIntegralF2D(FunctorPtr<SuperF2D<T>>&& f,
SuperGeometry2D<T>& geometry,
const Vector<T,2>& origin,
const Vector<T,2>& u,
std::vector<int> materials,
BlockDataReductionMode mode=BlockDataReductionMode::Analytical);
/// Constructor providing automatic lattice parametrization, only interpolating material 1
/**
* \param f (non-)owning pointer or reference to SuperF2D<T>.
* \param origin hyperplane origin
* \param u hyperplane direction vector
* \param mode defines how the values of the discrete hyperplane are determined
**/
SuperPlaneIntegralF2D(FunctorPtr<SuperF2D<T>>&& f,
SuperGeometry2D<T>& geometry,
const Vector<T,2>& origin,
const Vector<T,2>& u,
BlockDataReductionMode mode=BlockDataReductionMode::Analytical);
/**
* Returns the line integral in the following structure:
*
* \code
* output[0] = integral, e.g. flow[0] * h for 1-dimensional target sizes
* output[1] = #voxels * h i.e. length of line
* output[2..2+f.getTargetSize()] = flow
* \endcode
*
* Note: output[0] contains the flux value if applicable
*
* \param input irrelevant
**/
bool operator() (T output[], const int input[]) override;
};
}
#endif
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