Orientation.h

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/*******************************************************************************
 * Copyright (C) 2017-2026 Theodore Chang
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 ******************************************************************************/
#ifndef ORIENTATION_H
#define ORIENTATION_H
 
#include <Domain/Tag.h>
 
class Element;
 
class Orientation : public CopyableTag {
protected:
    const Element* element_ptr = nullptr;
 
    vec z_axis;
 
    double length = 0., inclination = 0.;
 
    mat direction_cosine;
 
    void check_element_ptr() const;
 
    virtual void update_transformation() = 0;
 
public:
    enum class Type {
        T2D,
        T3D,
        B2D,
        B3D,
        B3DOS
    };
 
    explicit Orientation(unsigned = 0, vec&& = {});
 
    void update_axis(const vec&);
 
    virtual void set_element_ptr(const Element*);
 
    [[nodiscard]] virtual bool is_nlgeom() const;
 
    [[nodiscard]] virtual Type type() const = 0;
 
    [[nodiscard]] double get_length() const;
    [[nodiscard]] double get_inclination() const;
    [[nodiscard]] const mat& get_transformation() const;
 
    virtual unique_ptr<Orientation> unique_copy() = 0;
 
    virtual void update_status();
    virtual void commit_status();
    virtual void reset_status();
    virtual void clear_status();
 
    [[nodiscard]] virtual vec to_local_vec(double) const;
    [[nodiscard]] virtual vec to_global_vec(double) const;
    [[nodiscard]] virtual mat to_global_mass_mat(double) const;
    [[nodiscard]] virtual mat to_global_geometry_mat(double) const;
    [[nodiscard]] virtual mat to_global_stiffness_mat(double) const;
 
    [[nodiscard]] virtual vec to_local_vec(vec&&) const;
    [[nodiscard]] virtual vec to_global_vec(vec&&) const;
    [[nodiscard]] virtual mat to_global_mass_mat(mat&&) const;
    [[nodiscard]] virtual mat to_global_geometry_mat(mat&&) const;
    [[nodiscard]] virtual mat to_global_stiffness_mat(mat&&) const;
 
    [[nodiscard]] virtual vec to_local_vec(const vec&) const = 0;
    [[nodiscard]] virtual vec to_global_vec(const vec&) const = 0;
    [[nodiscard]] virtual mat to_global_mass_mat(const mat&) const;
    [[nodiscard]] virtual mat to_global_geometry_mat(const mat&) const;
    [[nodiscard]] virtual mat to_global_stiffness_mat(const mat&) const = 0;
};
 
#endif