Section3D.h

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/*******************************************************************************
 * Copyright (C) 2017-2025 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 SECTION3D_H
#define SECTION3D_H
 
#include <Material/Material.h>
#include <Section/Section.h>
#include <Toolbox/ResourceHolder.h>
 
class Section3D : public Section {
protected:
    struct IntegrationPoint {
        double coor_y, coor_z, weight;
        ResourceHolder<Material> s_material;
        IntegrationPoint(double, double, double, unique_ptr<Material>&&);
    };
 
    std::vector<IntegrationPoint> int_pt;
 
    void initialize_stiffness();
 
public:
    Section3D(
        unsigned,        // tag
        unsigned,        // material tag
        double = 0.,     // area
        vec&& = {0., 0.} // eccentricity
    );
 
    void set_characteristic_length(double) const override;
 
    int update_trial_status(const vec&) override;
 
    int clear_status() override;
    int commit_status() override;
    int reset_status() override;
};
 
#endif