Can I use ginput (or an analog) in the 2016a App Designer?

Question

alex 2016-5-28

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https://ww2.mathworks.cn/matlabcentral/answers/286204-can-i-use-ginput-or-an-analog-in-the-2016a-app-designer

回答： Adam Danz 2022-8-7

Is there a way to use the ginput function (https://www.mathworks.com/help/matlab/ref/ginput.html) in the new App Designer? Or is there another function that allows you to generate points by clicking on parts of an Axes (Line and Scatter)? For reference, I would like to be able to do something like this:

function startupFcn(app)
          %uiopen
          app.xdata = linspace(0, 3*pi, 10);
          app.ydata = cos(app.xdata) + rand(1, 10);
          plot(app.UIAxes, app.xdata, app.ydata, 'Linewidth',.7);
          [x,y] = ginput(2);
 end

Thank you!

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Answer 1

Adam Danz 2022-8-7

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https://ww2.mathworks.cn/matlabcentral/answers/286204-can-i-use-ginput-or-an-analog-in-the-2016a-app-designer#answer_1022515

ginput is supported in AppDesigner figures starting in MATLAB R2020b

For more info:

https://www.mathworks.com/matlabcentral/answers/392617-how-can-i-use-ginput-in-app-designer#answer_504862

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Answer 2

Ian Hersom 2016-8-15

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https://ww2.mathworks.cn/matlabcentral/answers/286204-can-i-use-ginput-or-an-analog-in-the-2016a-app-designer#answer_231840

It hasn't been working for me, I sure would like it to though.

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Answer 3

glvbx unbsl 2018-8-12

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Need a solution to a similar problem in the App Designer. I would like to obtain the coordinates of a point on a figure (actually a displayed image in that figure) using the mouse click. But I am not able to implement this in the App Designer. When using ginput, it opens a new figure. I can't set the UIFigure as the current figure using figure(app.UIFigure). Can I direct ginput to use this UIFigure?

I tried [x,y] = getpts(app.UIAxes); but I get an error message "Functionality not supported with figures created with the uifigure function."

I believe I am missing something, it is unlikely that App Designer doesn't allow picking points off a uifigure.