save the information of the point by clicking on the graph

Hi,

I have a series of plots that will show up one after another, I want to activate the action that for each plot the user should pick two points in the plot ( start and end) and the information of those two points will be saved for all those graphs.Can anybody know how to tackle this problem?

thanks

Answer 1

[Evan]

You can get the indices of your selection by calling datacursormode and setting a custom update function. Example:

function cursortest

     fig = figure;
     imagesc
     h = datacursormode(fig);
     set(h,'UpdateFcn',@myupdatefcn)
     datacursormode on

end

function txt = myupdatefcn(obj,event_obj)

      % Get selection position
      txt = get(event_obj,'Position')

end

That would give you the information you need to obtain and save the selected values from your plotted arrays.