Click button uifigure callback function

Hello,

I am trying to set a function in which I get back coordinates from a graph in my uifigure (uiaxes ax4) and plot another based on these coordinates (uiaxes ax5). The first part works very well as if I put stopper in the function I can see that coordinates are well retrieved and stored.

Still I have the following error when it passes through the squeeze command. "data" is a 3D matrix that I put as an input to my function but when I stop the function in the middle it does not seem to be imported in the workspace. What command am I missing ?

Thanks you !

" Not enough input arguments.

Error in SAGUIimagesc/ImageClickCallback (line 265)

Yaxis = squeeze(data(XcR,YcR,:));

Error while evaluating Image ButtonDownFcn."

A = imagesc(ax4, data(:,:,2));

set(A,'ButtonDownFcn',@ImageClickCallback);
    function ImageClickCallback (objectHandle, eventData, ax5, data)
        axesHandle  = get(objectHandle,'Parent');
        Coord = get(axesHandle,'CurrentPoint');
        Xc = Coord(1,1);
        Yc = Coord(1,2);
        XcR = round(Xc);
        YcR = round(Yc);
        Xaxis = linspace(1,s(3),s(3));
        Yaxis = squeeze(data(XcR,YcR,:));
        plot(ax5, Xaxis, Yaxis);
    end

Answer 1

[Jan]

This looks strange. I do not see the reason for the error. Is this really the complete error message?

Use the debugger to check, what's going on. Type this in the command window:

dbstop if error

Then run the code again until it stops. Now check the values of the used variables:

squeeze(data(XcR,YcR,:))
XcR
YcR
size(data(XcR,YcR,:))
which data
which squeeze

[Julien Maxime]

Ok so I got the error in orange:

"Warning: Error occurred while executing the listener callback for event ForceStream defined for class matlab.internal.editor.StreamOutputsSignal:

Error using matlab.internal.editor.StreamOutputsSignal.forceStream

Unexpected type in OutputPackager.packageOneOutput: UncaughtError.

Dump of evalStruct:

type: 'UncaughtError'

payload: [1×1 struct]

stack: [8×1 struct]

Payload of evalStruct:

UncaughtErrorEvent: [1×1 struct]

UncaughtErrorEvent_RequestIdAdapter: [1×1 struct]

exception: [1×1 struct]

isRecursionLimitError: 0

Error in SAGUIimagesc/ImageClickCallback (line 265)

Yaxis = squeeze(data(XcR,YcR,:));"

For the second part:

XcR = 8

YcR = 6

The issue comes when we use data:

"K>> data(XcR,YcR,:)

Not enough input arguments."

I don't know why but data is not present into the workspace. It seems to imported despire puting it in input of the function. Yet if nothing refered to data i should have another type of error. When i type "which data", it respond me "data is a variable"

[Julien Maxime]

Ok I solved it. I don't really know why but actually it works if I do not import "ax5" and "data" elements. I guess they are already imported through "objectHandles".

Hoping it helps somebody one day !

Still thank you for your help.