KOKO\Mimi
37 lines
895 B
C++
37 lines
895 B
C++
#pragma once
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#include <cstddef>
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#include <optional>
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#include <span>
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#include <vector>
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#include <fesa/assembly/equation_system.hpp>
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#include <fesa/core/diagnostic.hpp>
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#include <fesa/fem/dof_manager.hpp>
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#include <fesa/model/step_definition.hpp>
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namespace fesa {
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struct ReducedSystem final {
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SymmetricCsr stiffness;
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std::vector<double> force;
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std::vector<std::size_t> free_to_full;
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std::vector<double> prescribed_full;
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};
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struct ConstraintResult final {
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std::optional<ReducedSystem> reduced_system;
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std::vector<Diagnostic> diagnostics;
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};
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[[nodiscard]] ConstraintResult eliminate_essential_bcs(
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const EquationSystem& original,
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const DofManager& dofs,
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std::span<const PrescribedDof> prescribed);
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[[nodiscard]] std::vector<double> recover_reaction(
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const EquationSystem& original,
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std::span<const double> full_displacement);
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} // namespace fesa
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