model.h

/********************************************************************
 * Copyright (C) 2015 Liangliang Nan <liangliang.nan@gmail.com>
 * https://3d.bk.tudelft.nl/liangliang/
 *
 * This file is part of Easy3D. If it is useful in your research/work,
 * I would be grateful if you show your appreciation by citing it:
 * ------------------------------------------------------------------
 *      Liangliang Nan.
 *      Easy3D: a lightweight, easy-to-use, and efficient C++ library
 *      for processing and rendering 3D data.
 *      Journal of Open Source Software, 6(64), 3255, 2021.
 * ------------------------------------------------------------------
 *
 * Easy3D is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License Version 3
 * as published by the Free Software Foundation.
 *
 * Easy3D 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 EASY3D_CORE_MODEL_H
#define EASY3D_CORE_MODEL_H
 
 
#include <string>
#include <vector>
#include <memory>
 
#include <easy3d/core/types.h>
 
 
namespace easy3d {
 
    class Renderer;
    class Manipulator;

    class Model
    {
    public:
        explicit Model(const std::string& name = "unknown");
        virtual ~Model();

        void set_name(const std::string& n) { name_ = n; }
        const std::string& name() const { return name_; }

        const Box3& bounding_box(bool recompute = false) const;

        void invalidate_bounding_box();

        virtual std::vector<vec3>& points() = 0;
        virtual const std::vector<vec3>& points() const = 0;

        bool empty() const { return points().empty(); };

        virtual void property_stats(std::ostream &output) const {}

        void set_renderer(std::shared_ptr<Renderer> r) { renderer_ = r; }
        Renderer* renderer();
        const Renderer* renderer() const;

        void set_manipulator(std::shared_ptr<Manipulator> manip) { manipulator_ = manip; }

        Manipulator* manipulator() { return manipulator_.get(); }
        const Manipulator* manipulator() const { return manipulator_.get(); }
 
    protected:
        std::string name_;
 
        Box3        bbox_;
        bool        bbox_known_;
 
        std::shared_ptr<Renderer> renderer_;         // for rendering
        std::shared_ptr<Manipulator> manipulator_;   // for manipulation
    };
}
 
#endif  // EASY3D_CORE_MODEL_H