MATLAB Object-Oriented Programming

ans =

1 0 0

You cannot change a property value:

red.G = 1;

You cannot set the read-only property 'G' of Colors.

Handle-Based Enumeration Classes

Handle-based enumeration classes that define properties are mutable. Derive

enumeration classes from the handle class when you must be able to change property

values on instances of that class.

NoteYou cannot derive an enumeration class from matlab.mixin.Copyable because

the number of instances you can create are limited to the ones defined inside the

enumeration block.

An Enumeration Member Remains Constant

Given a handle-based enumeration class with properties, changing the property value of

an instance causes all references to that instance to reflect the changed value.

For example, the HandleColors enumeration class associates RGB values with color

names, the same as the Colors class in the previous example. However, HandleColors

derives from handle:

classdef HandleColors < handle

properties

R = 0

G = 0

B = 0

end

methods

function c = HandleColors(r, g, b)

c.R = r; c.G = g; c.B = b;

end

end

enumeration

14 Enumerations