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a simple line plot in an uiaxes in AppDesigner leads to error messages

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Mario Schwarz
Mario Schwarz on 18 Feb 2020
Edited: Brandon Eidson on 2 Apr 2020
I am working in AppDesigner and I create an uiaxes where i simply plot some lines. When the mouse is near the plotted line i get a bunch of errormessages in the command window:
Warning: Error occurred while executing the listener callback for event MouseMove defined for class
matlab.graphics.interaction.graphicscontrol.InteractionObjects.DataTipInteraction:
Error using hgconvertunits
The reference object is invalid.
Error in getpixelposition
Error in getpixelposition
Error in getpixelposition
Error in brushing.select.translateToContainer
Error in matlab.graphics.interaction.uiaxes.Datatips
Error in matlab.graphics.interaction.actions.Linger/motionCallback
Error in matlab.graphics.interaction.actions.Linger
Error in
matlab.graphics.interaction.graphicscontrol.InteractionObjects.DataTipInteraction/actionevent
Error in matlab.graphics.interaction.graphicscontrol.InteractionObjects.InteractionBase
Error in matlab.graphics.interaction.graphicscontrol.GenericControl/process
Error in matlab.graphics.interaction.graphicscontrol.layoutable.LayoutableControl/process
Error in matlab.graphics.interaction.graphicscontrol.AxesControl/process

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Answers (2)

Jalaj Gambhir
Jalaj Gambhir on 28 Feb 2020
Edited: Jalaj Gambhir on 28 Feb 2020
Hi,
This issue occurs when we try to plot mixed datatypes in UIAxes in R2019a. This has been fixed in R2019b.
Meanwhile for R2019a, you can try a workaround for disabling the errors/warnings.
plot(....) % Your plot command
ax = gca;
disableDefaultInteractivity(ax)

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Brandon Eidson
Brandon Eidson on 2 Apr 2020
Edited: Brandon Eidson on 2 Apr 2020
I had a similar issue. I was working with uint's. I found if I plotted my data as double, I no longer received the constant warning.
e.g.
plot(app.UIAxes, xData, double(yData))

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