Get ROI (polygon) vertex information without moving it

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Brunno Machado de Campos
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!
  1 个评论
Brunno Machado de Campos
Brunno Machado de Campos 2022-9-1
编辑：Brunno Machado de Campos 2022-9-1
How I solved:
addlistener(handles.Poly,'ROIClicked',@clickCallback);
and a nested function to get current mouse position comparing with all vertex position (ROI 'Position'):
function clickCallback(src,evt)
handles = guidata(hObject);
ClickPosi = get(gca,'CurrentPoint');
ClickPosi = round(C(1,1:2));
VertIdx = find(sum(ismember(src.Position,ClickPosi),2)>=length(ClickPosi));
end

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