MeanField/libmeanfield/interface/analysis/integral.cppm

module;
#include "mean_field.h"

export module mean_field:analysis.integral;
export import :fem;
export import :utils.domain;
export import :mapping.domain_mapper;
export import :mapping.types;

export namespace mean_field::analysis {
    double domain_integrate_grid_function(
        const fem::FEM &fem,
        const mfem::GridFunction &gf,
        utils::DOMAINS domain                 = utils::DOMAINS::ALL,
        mapping::COORDINATE_SPACE coord_space = mapping::COORDINATE_SPACE::PHYSICAL
    );

    mfem::Vector get_com(
        const fem::FEM &fem,
        const mfem::GridFunction &rho
    );

    void conserve_mass(
        const fem::FEM &fem,
        mfem::GridFunction &rho,
        double target_mass
    );

    double get_moment_of_inertia(
        const fem::FEM &fem,
        const mfem::GridFunction &rho
    );

    double get_mesh_volume(
        const fem::FEM &fem,
        mapping::COORDINATE_SPACE coordinate_space = mapping::COORDINATE_SPACE::PHYSICAL,
        utils::DOMAINS domain                      = utils::DOMAINS::STELLAR
    );
} // namespace mean_field::analysis