drawfreehand in App Designer ?

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Hi,
I want to add a freehand draw in my app, with :
d = drawfreehand(app.UIAxes_1,'color','green');
But i have this error:
Error using images.roi.internal.ROI/parseInputs
ROI parent must be a valid Axes object.
Error in images.roi.Freehand
So how can i use drawfreehand in App Designer ?
Thanks a lot in advance.

Accepted Answer

Saumya Goel
Saumya Goel on 23 May 2019
At this time, the "drawfreehand" function only takes an 'axes' objects as an argument, not 'UIAxes', the type of axes that are used in App Designer. More information about the valid arguments for 'drawfreehand' can be found on this documentation page:
  2 Comments
Sean de Wolski
Sean de Wolski on 8 Aug 2019
See my answer below.

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More Answers (1)

Sean de Wolski
Sean de Wolski on 8 Aug 2019
It's kind of silently supported but you can programmatically (>=R2018b) add an axes to a uifigure and then draw* will work.
ax = axes('Parent', uifigure)
drawfreehand(ax)
  5 Comments
Narendra Narisetti
Narendra Narisetti on 30 Mar 2021
Hi, I am also looking for sam solution. When I use uiaxes matlab taing long time and not responding. @Sean de Wolski, could you provide a solution how to develop free hand on ap designer?

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R2018b

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