MATLAB Object-Oriented Programming

For example, consider the class ColorClass and two subclasses, RGBColor and

HSVColor:

classdef ColorClass

properties

Color

end

end

The class RGBColor inherits the Color property from ColorClass. RGBColor stores a

color value defined as a three-element vector of red, green, and blue (RGB) values. The

constructor does not restrict the value of the input argument. It assigns this value directly

to the Color property.

classdef RGBColor < ColorClass

methods

function obj = RGBColor(rgb)

if nargin > 0

obj.Color = rgb;

end

end

end

end

The class HSVColor also inherits the Color property from ColorClass. HSVColor

stores a color value defined as a three-element vector of hue, saturation, brightness value

(HSV) values.

classdef HSVColor < ColorClass

methods

function obj = HSVColor(hsv)

if nargin > 0

obj.Color = hsv;

end

end

end

end

Create an instance of each class and concatenate them into an array. The RGBColor

object is dominant because it is the leftmost object and neither class defines a dominance

relationship:

crgb = RGBColor([1 0 0]);

chsv = HSVColor([0 1 1]);

10 Object Arrays