Problem with properties in App Designer.
9 visualizaciones (últimos 30 días)
Mostrar comentarios más antiguos
Hello. I need help with "properties" in App Designer. I have some trouble with realization the method of symmetrical components.
properties (Access = public)
a = -.5 + sqrt (3) / 2 * j; % Phase-shift operator
F = [1 a^2 a; 1 a a^2; 1 1 1]; % Matrix Fortescue
end
Message: "Invalid default value for property 'F' in class 'App1': Undefined function or variable 'a'."
If I replace "a" with "app.a" in the Matrix Fortescue.
Message: "Invalid default value for property 'F' in class 'App1': Undefined variable "app" or class "app.a"."
0 comentarios
Respuestas (1)
Steven Lord
el 28 de Jul. de 2017
Since you're probably not going to want a and F to change based on the state of your app, make them Constant properties, properties with the Constant attribute.
6 comentarios
Steven Lord
el 29 de Jul. de 2017
That is correct IF you're referring to a property of an instance of the class. A Constant property can be accessed even if you don't have an instance of the class, and the way you do that is by using the name of the class.
Ver también
Categorías
Más información sobre Logical en Help Center y File Exchange.
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!