a_shape_plane.h

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/*
         Copyright 2010-2020 Pierre SMARS (smars@yuntech.edu.tw)
         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 2 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 _SHAPE_PLANE_H_
#define _SHAPE_PLANE_H_
 
// .NAME a_shape_plane
// .SECTION Author
// Pierre Smars
#include "a_shape.h"
 
class a_shape_plane : public a_shape
{
        public:
                a_shape_plane(): a_shape(4) {};
                virtual const std::string classname() const {return "a_plane";}
    static const std::string help();
                void normal(const a_point p); 
                a_point normal() const {return a_point(para_[0],para_[1],para_[2]);}
                a_point origin() const; //plane point closest to origin
                void normalise();
                void p3pts(const a_point p1, const a_point p2, const a_point p3); //plane passes through 3 points
                double dist() const {return para_[3];}
                void dist(const double v) {para_[3] = v;}
                a_point closest_point(const a_point p) const;
                double dist_point(a_point p) const;
                void random_hint(const std::vector<a_point>& pts);
                void fit_cloud(std::vector<a_point>& pts, short int=1);
                void export_3pts() const;
                void export_triangles(const std::vector<a_point>& pts) const;
        protected:
};
 
#endif