Get ROI (polygon) vertex information without moving it

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!

[Brunno Machado de Campos]

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