Point

using System;
using System.Collections.Generic;
using System.Text;

namespace ex1
{
    class point : Base
    {

        protected internal point():base()
        {


        }

        protected internal point(int a, int b, int c):base(a,b,c)
        {

        }
        protected internal  point Middle()
        {
            point t = new point(this.I1 / 2, this.I2 / 2, this.I3 / 2);

            return t;
        }
        protected internal  List<point> Symmetry(List<point> list)
        {
            point p = new point(0 - this.I1, this.I2, this.I3);
            list.Add(p);
            point p1 = new point(this.I1, 0-this.I2, this.I3);
            list.Add(p1);
            point p2 = new point(this.I1, this.I2, 0-this.I3);
            list.Add(p2);
            return list;
        }
        protected internal List<point> Projection(List<point> list)
        {
            point p = new point(0 , this.I2, this.I3);
            list.Add(p);
            point p1 = new point(this.I1, 0 , this.I3);
            list.Add(p1);
            point p2 = new point(this.I1, this.I2, 0 );
            list.Add(p2);
            return list;
        }
    }
}