MATLAB Programming Fundamentals - MathWorks

Process Tuned Properties

This example shows how to specify the action to take when a tunable property value

changes during simulation.

The processTunedPropertiesImpl method is useful for managing actions to prevent

duplication. In many cases, changing one of multiple interdependent properties causes an

action. With the processTunedPropertiesImpl method, you can control when that

action is taken so it is not repeated unnecessarily.

Control When a Lookup Table Is Generated

This example of processTunedPropertiesImpl causes the pLookupTable to be

regenerated when either the NumNotes or MiddleC property changes.

methods (Access = protected)

function processTunedPropertiesImpl(obj)

propChange = isChangedProperty(obj,'NumNotes')||...

isChangedProperty(obj,'MiddleC')

if propChange

obj.pLookupTable = obj.MiddleC *...

(1+log(1:obj.NumNotes)/log(12));

end

endend

Complete Class Definition File with Tuned Property Processing

classdef TuningFork < matlab.System

% TuningFork Illustrate the processing of tuned parameters

%

properties

MiddleC = 440

NumNotes = 12

end

properties (Access = private)

pLookupTable

end

methods (Access = protected)

function resetImpl(obj)

obj.MiddleC = 440;

obj.pLookupTable = obj.MiddleC * ...

Process Tuned Properties