MATLAB: Cursor mode only for specified data

datacursor

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

Best Answer

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.)

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A simple way to achieve this is to change the display format in the UpdateFcn of the Data Cursor.

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plot(datenum(dateVal), yValue);

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function output_txt = myfunction(obj,event_obj)
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Best Answer

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MATLAB: How to view the formatted date string(DATESTR) while using Date Cursor for a plot containing date strings on MATLAB 8.1(R2013a)

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