grid_forward_euler_diffusion_solver2.h

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// Copyright (c) 2018 Doyub Kim
//
// I am making my contributions/submissions to this project solely in my
// personal capacity and am not conveying any rights to any intellectual
// property of any third parties.
 
#ifndef INCLUDE_JET_GRID_FORWARD_EULER_DIFFUSION_SOLVER2_H_
#define INCLUDE_JET_GRID_FORWARD_EULER_DIFFUSION_SOLVER2_H_
 
#include <jet/constant_scalar_field2.h>
#include <jet/grid_diffusion_solver2.h>
#include <limits>
#include <memory>
 
namespace jet {
 
class GridForwardEulerDiffusionSolver2 final : public GridDiffusionSolver2 {
 public:
    GridForwardEulerDiffusionSolver2();
 
    void solve(
        const ScalarGrid2& source,
        double diffusionCoefficient,
        double timeIntervalInSeconds,
        ScalarGrid2* dest,
        const ScalarField2& boundarySdf
            = ConstantScalarField2(kMaxD),
        const ScalarField2& fluidSdf
            = ConstantScalarField2(-kMaxD)) override;
 
    void solve(
        const CollocatedVectorGrid2& source,
        double diffusionCoefficient,
        double timeIntervalInSeconds,
        CollocatedVectorGrid2* dest,
        const ScalarField2& boundarySdf
            = ConstantScalarField2(kMaxD),
        const ScalarField2& fluidSdf
            = ConstantScalarField2(-kMaxD)) override;
 
    void solve(
        const FaceCenteredGrid2& source,
        double diffusionCoefficient,
        double timeIntervalInSeconds,
        FaceCenteredGrid2* dest,
        const ScalarField2& boundarySdf
            = ConstantScalarField2(kMaxD),
        const ScalarField2& fluidSdf
            = ConstantScalarField2(-kMaxD)) override;
 
 private:
    Array2<char> _markers;
 
    void buildMarkers(
        const Size2& size,
        const std::function<Vector2D(size_t, size_t)>& pos,
        const ScalarField2& boundarySdf,
        const ScalarField2& fluidSdf);
};
 
typedef std::shared_ptr<GridForwardEulerDiffusionSolver2>
    GridForwardEulerDiffusionSolver2Ptr;
 
}  // namespace jet
 
#endif  // INCLUDE_JET_GRID_FORWARD_EULER_DIFFUSION_SOLVER2_H_