public D_force Copy()
{
var d_force = new D_force();
d_force.start = this.start;
d_force.finish = this.finish;
d_force.force_ratio = this.force_ratio;
return(d_force);
}
public static Point_Force DF2PF(D_force D)
{
var total_distance = D.start - D.finish;
Point_Force New_PF = new Point_Force();
New_PF.force = total_distance * D.force_ratio;
New_PF.point = (D.start + D.finish) / 2;
return(New_PF);
}
