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Topic: Updating variables in declared function handles
Replies: 7   Last Post: Mar 15, 2013 9:24 AM

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Steven Lord

Posts: 17,944
Registered: 12/7/04
Re: Updating variables in declared function handles
Posted: Mar 15, 2013 9:24 AM
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"kees de Kapper" <kees_de_kapper@hotmail.com> wrote in message
news:khuq27$hs7$1@newscl01ah.mathworks.com...
> "Steven_Lord" <slord@mathworks.com> wrote in message
> <khu8jf$21d$1@newscl01ah.mathworks.com>...
> "kees de Kapper" <kees_de_kapper@hotmail.com> wrote in message
> news:khsrn5$4bu$1@newscl01ah.mathworks.com...
>
> Define UpdateData with 0 output arguments.
>
> Indeed that works, but then obj isn't updated.


If your object is a value object, you will need to return the modified copy
of the object from within the method.
If your object is a handle object, you do not need to return the object from
the method, as modifying it within the method will modify the object
"referred to" by the variable you passed into the method.

For a more in-depth description of the difference between the two types,
read through this section in the documentation:

http://www.mathworks.com/help/matlab/matlab_oop/comparing-handle-and-value-classes.html

--
Steve Lord
slord@mathworks.com
To contact Technical Support use the Contact Us link on
http://www.mathworks.com




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