Get ROI (polygon) vertex information without moving it

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Brunno Machado de Campos 2022-9-1

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1793000-get-roi-polygon-vertex-information-without-moving-it

编辑： Brunno Machado de Campos 2022-9-1

Dear All,

How to retrieve current vertex information only by passing the mouse over it? We know Matlab do this since enables us to delete that vertex with right-click. I need to get the vertex index (from the position list) just by passing over or with a single or double-click. The addlistener function only gets activated if the vertex or the ROI is moved, so does not work for my problem.

Example:

PosiList = [6 1;5 2;4 2;3 3;2 4;2 5;1 6;1 7;1 8;1 9;...

2 10;2 11;3 12;4 13;5 13;6 13;7 14;8 14;9 13];

handles.Poly = images.roi.Polygon(handles.sub1,'Position',PosiList,...

'LineWidth',1,'FaceAlpha',0.05,'MarkerSize',3,'Visible','on');

addlistener(handles.Poly,'AnyEvent',@allevents);

Any tip?

Thanks!