PeriodicShapeVariableToSimulation.hpp

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#pragma once
 
#include <polyfem/optimization/parametrization/PeriodicMeshToMesh.hpp>
#include <polyfem/optimization/var2sims/VariableToSimulation.hpp>
 
#include <Eigen/Core>
 
#include <memory>
#include <string>
#include <vector>
 
namespace polyfem::solver
{
    class PeriodicShapeVariableToSimulation : public VariableToSimulation
    {
    public:
        using StatePtrs = std::vector<std::shared_ptr<legacy::State>>;
        using DiffCachePtrs = std::vector<std::shared_ptr<DiffCache>>;
 
        PeriodicShapeVariableToSimulation(StatePtrs states,
                                          DiffCachePtrs diff_caches,
                                          CompositeParametrization parametrizations);
 
        std::string name() const override;
        ParameterType parameter_type() const override;
        bool affect_state(const legacy::State &target) const override;
        void update(const Eigen::VectorXd &x) override;
        void update_state_variables(const Eigen::VectorXd &x, Eigen::VectorXd &state_variables) const override;
        Eigen::VectorXd compute_adjoint_term(const Eigen::VectorXd &x) const override;
        int inverse_dof() const override;
        Eigen::VectorXd inverse_eval() const override;
        Eigen::VectorXd apply_parametrization_jacobian(const Eigen::VectorXd &term, const Eigen::VectorXd &x) const override;
 
    private:
        int dim_;
        int vertex_num_;
        StatePtrs states_;
        DiffCachePtrs diff_caches_;
        CompositeParametrization parametrization_;
 
        // Helper to map a cell to periodic structure.
        std::unique_ptr<PeriodicMeshToMesh> periodic_mesh_map_;
 
        int para_out_dof() const;
    };
 
} // namespace polyfem::solver