Make the data tip ignore superimposed plot data
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I have a code routine that displays an image in a figure window and also superimposes a scatter plot onto that image. When the data tip tool is clicked on a pixel too close to one of the plot points (even not directly on it) the data tip will try to process a nearby plot point instead of the image pixel directly under it. Zooming does not help.
Is there a way that I can make the data tip ignore the presence of the plot data?
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Tom Lane
le 1 Fév 2013
If h is a handle to the plot line, I'd expect set(h,'HitTest','off') to do what you want. Not 100% sure, but give it a try.
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Johannes James
le 11 Nov 2022
In looking for an answer to this issue, I hit this old thread. Sorry to revive it, but the accepted answer didn't work for my case (R2022a) in which I had semitransparent polygon and area objects but needed datatips on the plots underneath. The accepted answer earlier got me looking in the right place, so thanks!
What did it for me was setting the 'PickableParts' property to 'none' for the occluding objects.
e.g. if lp is the polygon, making it not 'pickable' enabled me to drop datatips through it onto plots beneath.
lp = patch(x1,y1,'red','FaceAlpha', 0.3,'EdgeColor','none');
set(lp,'PickableParts','none');
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