ithacaInterpolator.H

/*---------------------------------------------------------------------------*\
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 * In real Time Highly Advanced Computational Applications for Finite Volumes
 * Copyright (C) 2017 by the ITHACA-FV authors
-------------------------------------------------------------------------------
 
License
    This file is part of ITHACA-FV
 
    ITHACA-FV is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    ITHACA-FV 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 Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
    along with ITHACA-FV. If not, see <http://www.gnu.org/licenses/>.
 
Class
    ithacaInterpolator Declaration
Description
    Radial Basis Function Interpolator interface class that wraps different RBF packages.
Source files
    ithacaInterpolator.C
\*---------------------------------------------------------------------------*/
 
#ifndef ithacaInterpolator_H
#define ithacaInterpolator_H
 
#include <Eigen/Core>
#include <memory>
#include <string>
#include "dictionary.H"
 
// Forward declarations
class mtbGPR;
class mtbRBF;
class splinterRBF;
 
class ithacaInterpolator
{
public:
    // Constructor from OpenFOAM dictionary
    ithacaInterpolator(const Foam::dictionary& dict);
 
    // Destructor
    ~ithacaInterpolator();
 
    // Fit function
    void fit(const Eigen::MatrixXd& X, const Eigen::VectorXd& y);
 
    // Predict function
    double predict(const Eigen::VectorXd& x);
 
    // Predict for multiple points
    Eigen::VectorXd predict(const Eigen::MatrixXd& X);
 
    // Print model information
    void printInfo() const;
 
private:
    std::unique_ptr<mtbGPR> mtbGPR_;
    std::unique_ptr<mtbRBF> mtb_;
    std::unique_ptr<splinterRBF> splinter_;
    std::string algorithm_;
    std::string package_;
};
 
#endif