Updating 'Base' workspace values using a GUI

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Craig Saunders
Craig Saunders 2018-7-30
评论： Stephen23 2018-7-30
Hi all,
I would like to update a set of values in my 'base' workspace via a GUI by getting a user to enter values into separate 'edit text' fields and once a button is clicked, all values are sent to the 'base' workspace and updated. I have tried inputdlg however this is very basic and I'd prefer if someone provided an example using uicontrol or GUIDE.
I don't mind doing this via GUIDE or programmatically, however I'm completely new to this so I'd love to see an example code that I can use which simply allows a user to enter a value, hit a button, and the value then updates in the 'base' workspace.
Please see the example of where I'd like to start via the image.
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Craig Saunders
Craig Saunders 2018-7-30
Thank you Stephen, however, regardless of this being recommended or not - would you kindly provide an example of how this could be done? The input dialog is basic and id prefer to design the GUI myself.
Cheers
Stephen23
Stephen23 2018-7-30
@Craig Saunders: the second link in my comment above has many examples.

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回答（2 个）

Dennis
Dennis 2018-7-30
Here is an example how you can achieve what you asked for, however if you decribe what you want to do we probably come up with a better/safer/quicker solution.
tf=uicontrol('style','edit','position',[100,20,100,20]);
button=uicontrol('style','pushbutton','callback',{@badidea,tf});
function badidea(~,~,tf)
A=tf.String;
evalin('base',strcat('A=',A))
end
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Craig Saunders
Craig Saunders 2018-7-30
'Function definitions are not permitted in this context'.
Dennis
Dennis 2018-7-30
You are copy & pasting everything in command line? Either save and run it as script or save the function as badidea.m and run the other 2 lines.

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Image Analyst
Image Analyst 2018-7-30
I agree with Stephen that it's not recommended. There are ways to share data. See the FAQ: https://matlab.wikia.com/wiki/FAQ#How_can_I_share_data_between_callback_functions_in_my_GUI.28s.29.3F
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Craig Saunders
Craig Saunders 2018-7-30
Thanks for your response. My main task is to change values stored in the base workspace which are linked to a Simulink model. I want to run the Simulink model and update the values in order to show a difference within the simulation. Ideally I'd like the values to be adjusted using a slider which would demonstrate these differences.
Craig

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