how to call a private function in private function？

Question

Lv 2023-3-29

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1937184-how-to-call-a-private-function-in-private-function

评论： Lv 2023-4-6

采纳的回答： Neha

在 MATLAB Online 中打开

APP DESIGNER methods (Access = private)

Inside the private function is the following statement to call another private function, ECEFtoECI

 [B] = ECEFtoECI(app, A); 
 %When running, an error message is displayed indicating that the variable "app" cannot be recognized.

  [B] = ECEFtoECI(JD(i), A); 
  %If this is the case, an error message is displayed indicating that ECEFtoECI cannot be found

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Lv 2023-3-30

thanks for your help, but following the above method still does not work, hint: cannot resolve the name“app.ECEFtoECI” in the line of function call

Does this have to do with the order in which the two private functions are defined?

chrisw23 2023-4-5

The calling function has to have app as an argument .

function callerOfECEFtoECI(app,others)

ret = app.ECEFtoECI()

end

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Answer 1

Neha 2023-4-5

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https://ww2.mathworks.cn/matlabcentral/answers/1937184-how-to-call-a-private-function-in-private-function#answer_1209319

在 MATLAB Online 中打开

It is my understanding that you want to call a private function within a private function. Since I am not sure where exactly the object is being instantiated, there can be two scenarios where this will work.

Case 1: Calling the first private function from the constructor whose access level is public.

classdef MyClass 
    methods (Access = private) 
        function output1 = privateFunction1(obj) 
            output1 = obj.privateFunction2(A); % calling another private function 
            disp(output1); 
        end 
        function output2 = privateFunction2(obj,A) 
            output2 = A+35; 
        end 
    end 
    
    methods 
        function obj=MyClass() 
            obj.privateFunction1(); 
        end 
    end 
end 

Case 2: Defining a public or a static function which can instantiate objects of the class (factory function).

classdef MyClass 
    methods (Access = private) 
        function output1 = privateFunction1(obj) 
            A=3; 
            output1 = obj.privateFunction2(A); % calling another private function 
            disp(output1); 
        end 
        function output2 = privateFunction2(obj,A) 
            output2 = A+35; 
        end 
    end 
    
    methods (Static) 
        function obj=createInstance(obj) 
            obj=MyClass(); 
            obj.privateFunction1(); 
        end 
    end 
end 