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GUIDE - using the data of a Textbox to use it in other functions in the main

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Megan
Megan 2019-12-13
关闭： MATLAB Answer Bot 2021-8-20
I want to use the variable minVelocity in my main. the variable will me entered in the textbox of my gui after I press execute it will be saved.
But I can not use it in my main it does not work.

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回答（1 个）

Image Analyst
Image Analyst 2019-12-13
Just call this code to get minVelocity whenever you need it
minVelocity = str2double(handles.minVelocity.String);
The function will have to have access to the handles structure, which all GUI component callbacks will have.
See the FAQ for more options.
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Megan
Megan 2019-12-17
I dont get it. I tried to do this but it didnt work. Where should i put this code snippet
Image Analyst
Image Analyst 2019-12-17
Replace this
% --- Executes on button press in execute_button.
function execute_button_Callback(hObject, eventdata, handles)
minVelocity = str2double(get(handles.minVelocity_text, 'string'));
% Store the data in the "UserData" property of the GUI Figure
% This assumes that the hObject is a child of the GUI figure
data.minVelocity = minVelocity;
hObject.Parent.UserData = data;
disp(minVelocity)
Analysis_Main
with this
% --- Executes on button press in execute_button.
function execute_button_Callback(hObject, eventdata, handles)
minVelocity = str2double(get(handles.minVelocity_text, 'string'));
% Store the data in the "UserData" property of the GUI Figure
% This assumes that the hObject is a child of the GUI figure
data.minVelocity = minVelocity;
hObject.Parent.UserData = data;
disp(minVelocity)
handles = Analysis_Main(handles);

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