app designer mouse events (position and clicks) on axes component

Question

bobby27 2018-8-16

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https://ww2.mathworks.cn/matlabcentral/answers/415102-app-designer-mouse-events-position-and-clicks-on-axes-component

评论： Matteo Verardo 2023-8-2

mouseactionsapp.zip

I am working on an app with that i want to move drawn objects on an axes element. Something like in this video.

As a first step i want to know the coordinates of the mouse on the axes and want to detect the mouse clicks the user does on this field. Ive been reading the forums for a while but i had no success so far creating a working program.

For testing purposes I created an application in App designer with an axes, two edit fields(numeric) and one lamp components.

The Edit Fields are supposed to show the actual coordinates of the mouse while the lamp lights up when the button is pressed. The main window looks like this:

I have collected some information about how im supposed to do but altogether im still lost.

First part of the code im trying to use:

function mouseMove(objectHandle, eventData)
            cursorPoint = get(objectHandle.axes1, 'CurrentPoint');
            app.xCoord.Value = cursorPoint(1,1);
            app.yCoord.Value = cursorPoint(1,2);
        end

Second part:

set(gca, 'WindowButtonMotionFcn', @mouseMove);

Since i havent seen a working application with mouse events, only some code parts from similar projects on the forums, im not sure if it could work at all, or where im supposed to put this code lines in the App Designer code.

I uploaded the app if someone would look into that. Any information on where to start with mouse events/ written or video guides / a working code for my test application would be greatly appreciated.

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Adam 2018-8-16

Unfortunately I don't think mouse interactivity is supported yet by App designer - one of the many reasons I do not use it yet.

https://uk.mathworks.com/help/matlab/creating_guis/graphics-support-in-app-designer.html

gives details of what is not yet supported, with links to help for earlier versions too to show what they supported.

Lucas Acuna Scafati 2020-5-8

Were you able to find a solution to this issue? I currently working with 2017b and have the same problem.

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Answer 1

Sampath Rachumallu 2020-4-28

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https://ww2.mathworks.cn/matlabcentral/answers/415102-app-designer-mouse-events-position-and-clicks-on-axes-component#answer_428934

编辑：Sampath Rachumallu 2020-4-28

在 MATLAB Online 中打开

Create a function called 'mouseMove' inside app in your case. Refer

https://www.mathworks.com/help/matlab/creating_guis/code-and-call-app-functions-in-app-designer.html

for creating a function inside an app.Next, Create a Startup function for the app. Refer the below link on how to add startup function for the app:

https://www.mathworks.com/help/matlab/creating_guis/app-designer-startup-function.html

Finally set the mouse motion function callback to function 'mouseMove' inside startup function

Note: I am using 2019a and Mouse callbacks are supported in this version.

%In startup function
    function startupFcn(app)
        %set WindowButtonMotionFcn as mouse move function
        set(app.UIFigure, 'WindowButtonMotionFcn', @mouseMove); 
     end

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Matteo Verardo 2023-8-2

@app.mouseMove not @mouseMove

function mouseMove(app, scr, event)

//the code

end

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app designer mouse events (position and clicks) on axes component

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