Simulink Enumeration

Hello,

I am trying to do a simple multiport switch. My control is a numeric value.

If 1 is selected, I want my output to be 'Red'. If 2, I want 'Yellow', ect.

I have tried creating a class object for Colors. (thinking this isn't helping)

classdef Colors
    properties
        R = 0;
        G = 0;
        B = 0;
    end

      methods
          function c = Colors(r,g,b)
              c.R = r; c.G = g; c.B = b;
          end
      end

      enumeration
          Red(1, 0, 0)
          Orange(1, .5, 0)
          Yellow(1, 1, 0)
          Green(0, 1, 0)
          Blue(0, 0, 1)
          Indigo(.2, 0, .8)
          Violet(1, 0, 1)
      end
  end

thus, when I type Colors.Red, I get Red as my output.I used the Enumerated Constant, of output Colors and value Colors.Red. I get error "Initialization commands cannot be evaluated."

Any help would be great, my end goal is to pass a value out of "Red","Yellow"..ect. If I do this as a char or enumerated state I don't care.

thanks.

Answer 1

[Fangjun Jiang]

This video might be helpful. http://www.mathworks.com/support/2010b/matlab/7.11/demos/enumerations-in-r2010b.html

[B. J.]

This what what I used to create my class Colors, but I'm having trouble calling it from that point. I cannot seem to pull out "orange" for example. I get constructor errors saying "colors constructor

a = Colors(1, .5, 0)

??? Error using ==> Colors

Cannot call the constructor of 'Colors' outside of its enumeration block.

[Fangjun Jiang]

Should you use a=Colors.Orange? Then you can check a.R, a.G and a.B

Answer 2

[Kaustubha Govind]

I don't think you can use this kind of enumerated class in Simulink. Simulink enumerated types need to inherit from Simulink.IntEnumType. See Defining Simulink Enumerations.