Cursor mode only for specified data

Hello everybody,

I have one figure with two plots. One of them is a scatter plot and I want activate the data cursor and only find points of this data.

I dont know how to really modify using myfunction

Maybe creating a specific handle?

Thanks

Code:

    function scatterMod(varargin)

    scatter(varargin{:}) %this is the data which I want to work using the data cursor

    dcm = datacursormode(gcf);

    set(dcm, 'updatefcn', @myfunction)

    function output_txt = myfunction(obj,event_obj)
    % Display the position of the data cursor
    % obj          Currently not used (empty)
    % event_obj    Handle to event object
    % output_txt   Data cursor text string (string or cell array of strings).

    pos = get(event_obj,'Position');
    output_txt = {['X: ',num2str(pos(1),4)],...
        ['Y: ',num2str(pos(2),4)]};

    % If there is a Z-coordinate in the position, display it as well
    if length(pos) > 2
        output_txt{end+1} = ['Z: ',num2str(pos(3),4)];
    end

Answer 1

[Walter Roberson]

Try setting HitTest off on the points you do not want data cursor to work for. (I don't promise it will work, but it is worth the experiment.)

[fjnb86]

It was many time ago but you were right!

Until now I was doing other thinh but yours is more elegant and today (with more experience) I solved!

%code for other new users

[handlesfigure]=yourplot(x,y); %u dont want to interact with this

set(handlesfigure,'HitTest','off')

Answer 2

[fjnb86]

Data cursor has an option called Selection->"Snap to nearest data vertex" and it works well but only when you have one data represented.

If I plot more in the same figure this function catches both of them and I only want this for the scatter plot.

Ive also ridden this documentation but Im still blocked: http://blogs.mathworks.com/videos/2011/10/19/tutorial-how-to-make-a-custom-data-tip-in-matlab/#comments

thanks!