Get Values From User using Edit Field Numeric in App Designer

Question

Erkin Karatas 2019-12-9

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/495679-get-values-from-user-using-edit-field-numeric-in-app-designer

回答： Subhadeep Koley 2020-1-8

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

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Erkin Karatas 2019-12-9

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 2019-12-10

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

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Answer 1

Subhadeep Koley 2020-1-8

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/495679-get-values-from-user-using-edit-field-numeric-in-app-designer#answer_409120

app2.zip

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!