ScalarField2.h

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/*************************************************************************
> File Name: ScalarField2.h
> Project Name: CubbyFlow
> Author: Chan-Ho Chris Ohk
> Purpose: Abstract base class for 2-D scalar field.
> Created Time: 2017/03/14
> Copyright (c) 2018, Chan-Ho Chris Ohk
*************************************************************************/
#ifndef CUBBYFLOW_SCALAR_FIELD2_H
#define CUBBYFLOW_SCALAR_FIELD2_H

#include <Core/Field/Field2.h>
#include <Core/Vector/Vector2.h>

#include <functional>
#include <memory>

namespace CubbyFlow
{
    class ScalarField2 : public Field2
    {
    public:
        ScalarField2();

        virtual ~ScalarField2();

        virtual double Sample(const Vector2D& x) const = 0;

        virtual Vector2D Gradient(const Vector2D& x) const;

        virtual double Laplacian(const Vector2D& x) const;

        virtual std::function<double(const Vector2D&)> Sampler() const;
    };

    using ScalarField2Ptr = std::shared_ptr<ScalarField2>;
}

#endif