UIAxes Data Tip interaction

Hello, I recently updated from 2019b (2021b now) and I wanted to use the new support for datacursormode in UIAxes.

With a standard figure I can move the data tip label around the point snapped (NE, NW, SW, SE) and I can also drag the data tip along the plotted curve to adjust its position.

Is it possible to replicate this behavior for UIAxes plots?

I can only enable datacursormode in UIAxes but then I can produce data tips that can only be deleted and repositioned and not interactively dragged along the curve.

Also:

I would like to change the pointer from standard "arrow" to "circle" when inside the uiAxes, I did it with enter/exit function, but the datacursor mode overwrites the bavior and displays the standard "cross"

The code looks like this

function startupFcn(app)
    datacursormode(app.MyApp, 'on');
    pm.enterFcn = @(~,~) set(app.MyApp, 'Pointer', 'circle');
    pm.exitFcn  = @(~,~) set(app.MyApp, 'Pointer', 'arrow');
    pm.traverseFcn = [];
    iptSetPointerBehavior(app.UIAxes, pm)
    iptPointerManager(app.MyApp,'enable');
end

with no datacursor mode it works, with datacursor 'on' it displays "cross"

Thanks

Answer 1

[Kevin Holly]

You could change line 450 in datacursormode

from

setptr(gcf,'datacursor')

to

setptr(gcf,'circle')

or just comment out the line.

Edit: As for moving/repositioning the datatips, it works for me in R2022b, but I have the same issue in R2021b.

[Daniele Crimella]

Thanks for the answer. This does solve the problem on my machine, but how about sharing the app as standalone with other users, will they still see the "arrow" cursor?

I could insert a copy of datacursor function (datacursorMOD for example) inside my app and call that instead of the native one, but it seems a bit too extreme to do that only modify a cursor (if it is the only way, I will do that for sure).

Thanks for the investigation on R2021b so I won't loose time searching for a fix as it seems to be related to the release itself.

[Kevin Holly]

Creating a modified copy of the datacursor function was the route I would have recommended. Generally, the standalone executable should have the same functionality as before you compiled.