Get Values From User using Edit Field Numeric in App Designer

Hi all, I want to get values from user for 4 parameters, then place them into the second part of the code.

% Callback function
        function LengthEditFieldValueChanged(app, event)
            global L
            value = app.LengthEditField.Value;
            L = value;
        end

        % Callback function
        function DiameterEditFieldValueChanged(app, event)
            global D
            value1 = app.DiameterEditField.Value;
            D = value1;
        end

        % Callback function
        function RPMEditFieldValueChanged(app, event)
            global n
            value3 = app.RPMEditField.Value;
            n = value3;
        end

        % Callback function
        function reciprocatingtimesEditFieldValueChanged(app, event)
            global S
            value4 = app.reciprocatingtimesEditField.Value;
            S = value4;
        end

2nd part of the question

function ButtonPushed(app, event)
            global a        
global V_f      
global L           
global S         
global n        
global D          
 
 a = 10;
V_f = 15;  

x = 1:50; %diameter
y = 1:50;   %length

V_w = (V_f * pi * D * n)/(2*L*S);

for i = 1:length(y)
    hor(i) = V_w * sqrt(2*y(i)/a);
    i = i+1;
end


plot(y,hor, 'r')
hold on
for i=1:100;
    k = y - i;
    plot(k, hor, 'r')
    hold on
     m = -x - i;
    plot(m, hor, 'b')
    hold on
    i= i +1;
end
        end
    end

[Walter Roberson]

What is the difference between this and your earlier https://www.mathworks.com/matlabcentral/answers/495678-get-values-from-user-using-edit-field-numeric-in-app-designer ?

[Erkin Karatas]

While I was posting the first question, I got a connection error, and I also couldn’t find the question in my page. So I thought it’s not posted. Sorry about that, I will erase the first one.

[Ankit]

What are the problems you are facing? Your question is not clear. Could you please elaborate more about your question.

Answer 1

[Subhadeep Koley]

Hi, Erkin in App Designer instead of using the keyword global, you can declare the variables as Public Property, which can be used inside and out of the app. The attached zip file contains the app for your reference, where I have modified your functions.

Hope this helps!