Class method not working properly

Hello,

My method function "move(obj)" does nothing when it is called. The obj.pos is left unchanged. Can anyone tell me what I'm doing wrong? Here's the class code:

classdef ball

    properties
        pos
        vel
        rad
    end

    methods
        function obj = ball(pos,vel,rad)
            if nargin ~= 0
                obj=ball;
                obj.pos = pos;
                obj.vel = vel;
                obj.rad = rad;
            end
        end

         function draw(obj) (...)
         end

         function move(obj)
             obj.pos(1)=obj.pos(1)+obj.vel(1);
             obj.pos(2)=obj.pos(2)+obj.vel(2);
         end

    end

end

Thanks!

-Jim

Answer 1

[Daniel Shub]

Your class is a value class. If you want the new value of obj, then you need the move method to return obj. You may want your class to be a handle class

classdef ball < handle

[James]

Thanks!