MATLAB: Class method not working properly

classfunction

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

Best Answer

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
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