MATLAB Object-Oriented Programming

end

end

Zero or More Superclass Arguments

To support a syntax that calls the superclass constructor with no arguments, provide this

syntax explicitly.

Suppose in the case of the Cube class example, all property values in the Shape

superclass and the Cube subclass have default values specified in the class definitions.

Then you can create an instance of Cube without specifying any arguments for the

superclass or subclass constructors.

Here is how you can implement this behavior in the Cube constructor:

methods

function cubeObj = Cube(length,color,upvector,viewangle)

% Assemble superclass constructor arguments

if nargin == 0

super_args = {};

elseif nargin == 4

super_args{1} = upvector;

super_args{2} = viewangle;

else

error('Wrong number of input arguments')

end

% Call superclass constructor

cubeObj@Shape(super_args{:});

% Assign property values if provided

if nargin > 0

cubeObj.SideLength = length;

cubeObj.Color = color;

end

...

end

end

More on Subclasses

See “Design Subclass Constructors” on page 12-9 for information on creating

subclasses.

9 Methods — Defining Class Operations