How to make UIAXES invisible after imshow?

I used imshow to display an image in an UIAXES object. After displaying the image, I would like to temporarily hide the axes and image. Setting the visibility of the uiaxis to off doesn't hide the uiaxis. The image is still visible, and I can still interact with the uiaxis. How do i make the uiaxis invisible? Is this a bug?

app.exAxes.Visible = 'off';

I am using 2018b update 2.

Answer 1

[Walter Roberson]

Not a bug.

Unlike all of the other objects I can think of at the moment, when you set an axes Visible to off, what you are controlling is the outside decorations such as the plot box, the tick marks, the title and labels, the grid -- but not any of the things drawn in the axes. There is no control at the axes level to say "make this axes and all of its contents invisible".

There are two work-arounds for standard axes:

1. Put the axes inside a container object such as a uipanel. When you set the container visibility to off, the graph will disappear as well. This has the advantage that you can control everything about the labels etc. and the graphics at the same time; Or
2. Create a hggroup inside the axes, and parent the graphics objects to the hggroup. When you set the hggroup visibility to off, the graphcis will disappear. This does not affect the labels etc. so if you want those invisible you would have to set the axes visibility off as well.

[ILoveMATLAB]

I tried this and it worked, but I encountered an even worse problem. After resizing the panel using the uigridlayout function I then set the axis object size to the same size as the resized panel. Every time I ran the code, the panel would be the correct size; however, the axes would not stretch to the size of the panel. The uiaxis would only be the correct when I executed the code using the matlab debugger. After debugging for more than 8 hours, I determined that the MainPanel. Position was assigned to app.exDieAxes.Position before the actual MainPanel properties were updated by gridlayout function. After adding a (30s) pause to my code, I was able to get the desired output. A 30 second pause is a temporary and frustrating fix. Do you have any idea how to fix this issue?

   
            app.MainPanel.Parent = leftGrid;
            app.MainPanel.Layout.Row =1;
            app.MainPanel.Layout.Column =1
            %pause(30)
            app.exAxes.Position =[1,1,app.MainPanel.Position(3:4)]

[Walter Roberson]

Did you experiment with drawnow() at that point ?

[ILoveMATLAB]

I will try this when I get a chance. I eliminated the pause by just calculating what the panel's new position would be prior to stretching the panel.

[ILoveMATLAB]

drawnow works.