MATLAB: DataCursormode – Selecting Points on Graph

datacursormode

I attempted to implement this idea:

http://www.mathworks.com/support/solutions/en/data/1-143T59/

However, suppose I want to limit the mouse clicks to a variable

function pick_Callback(hObject, eventdata, handles)
pick = handles.pick %Pick could be any random number
dcm_obj = datacursormode(figure (8));
set(dcm_obj,'DisplayStyle','datatip',...
    'SnapToDataVertex','off','Enable','on')
c_info = getCursorInfo(dcm_obj);
if(numel(c_info)==numel(pick))
    set(dcm_obj,'Enable','off');
end

For some reason, it allows me to continue selecting points. I want it to stop at numel(pick).

Best Answer

Or suppose I use

[x,y] = ginput(number)

Suppose further that a button initiates this action but the figure appears in a separate window.

Related Solutions

MATLAB: How to disable Zoom and Pan in the post action callback

To enable the ability to turn off pan or zoom in the post action callback, you must set the "ModeHandle" 's "Blocking" property to false. This feature is undocumented and is not even visible when the property 'hideundocumented' is set to 'off'.

For "zoom": Use the following code in the post action callback to turn off the zoom using the set function:

function myzoompostcallback(obj,evd)
%obtain zoom object from figure
hZ = zoom(obj);
%turn blocking off to allow setting the zoom state (true by default)
hM = hZ.ModeHandle;
set(hM,'Blocking',false);
%turn zoom off
set(hZ,'Enable','off');

Use the following code in the post action callback to turn off the zoom using dot notation:

function myzoompostcallback(obj,evd)
hZ = zoom(obj);
hZ.ModeHandles.Blocking = false;
hZ.Enable = 'off';

For "pan":

Use the following code in the post action callback to turn off the pan using the set function:

function mypanpostcallback(obj,evd)
%obtain pan object from figure
hP = pan(obj);
%turn blocking off to allow setting the pan state (true by default)
hM = hP.ModeHandle;
set(hM,'Blocking',false);
%turn pan off
set(hP,'Enable','off');

Use the following code in the post action callback to turn off the pan using dot notation:

function mypanpostcallback(obj,evd)
hP = pan(obj);
hP.ModeHandles.Blocking = false;
hP.Enable = 'off';

MATLAB: How to Re-position DataCursormode ‘Window’

Hello Kevin,

You could use the "findall" function with the name-value pair 'Tag', 'DataCursorMode:FigurePanel' to obtain the handle to the Data Cursor window. Following this, you could use the property "Position" of the obtained handle to set the desired position.

I hope this helps.

Best,

Karun

Best Answer

Related Solutions

MATLAB: How to disable Zoom and Pan in the post action callback

MATLAB: How to Re-position DataCursormode ‘Window’

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