How to add imagesc plot to an app?

Question

JeanN 2022-4-6

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https://ww2.mathworks.cn/matlabcentral/answers/1689715-how-to-add-imagesc-plot-to-an-app

评论： Xu-Jie Wang 2023-8-16

Hi all,

I am trying to put an image created from the imagesc function to display on an Matlab app.

I am struggling with that and am not sure what to do next.

I have already looked at and tried :

First, I am not sure if I should be hosting the image as as UIAxes or as an Image. I am generating the plot programaticaly from Matlab.

Let's say that I try to host it as UIAxes component ( have several plot areas in my app). That component is called UIAxes and is inside a panel. Then what I do is to put the following inside a function which I then call from the startup Function:

app.UIAxes = imagesc(R);

where R is a matrix with numbers.

I get the following error

Error using app2/startupFcn (line 98)

Error setting property 'UIAxes' of class 'app2'. Value must be of type matlab.ui.control.UIAxes or be convertible to matlab.ui.control.UIAxes.

Would anybody have an idea of what I can do here?

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DGM 2022-4-6

编辑：DGM 2022-4-6

在 MATLAB Online 中打开

I don't really ever do much with the app stuff, so I'm not going to make an answer out of this. Generally, image objects, like any plot object, are children of axes objects. So instead of assigning like that, you'd call image() with the handle of the axes that is to be it's put in:

imageobjecthandle = imagesc(axeshandle,myimage);

How you manage the axes and image handles is up to you.

Brian 2023-1-16