Pass variables into set(frt,'W​indowButto​nDownFcn',​@mousePos)

Quick question, how can i pass some other variables that i want in mousePos

function mousePos(hObject,~)
mPos=get(hObject,'CurrentPoint');
finalPos(mPos,data)

The data variable is defined in the main function but i want to use it here too.

Answer 1

[Walter Roberson]

set(frt, 'WindowButtonDownFcn', {@mousePos, data} )

and

function mousePos(hObject, ~, data)

Note: this will use the value of "data" as of the time the callback is created, and will not reflect any updates to "data" that are made after that.

[Raldi]

Thanks, i'll find a way to update it later.

[Raldi]

Another thing, i was trying to save each rectangle i created so later on i can have acces to the position of the one i want. The code below is not working though.

 for i = 1:compnum
       id = [num2str(i)];
      h.id = imrect(gca, compdata(i,:));  
      daspect([1,1,1])  
  end

[Walter Roberson]

http://matlab.wikia.com/wiki/FAQ#How_can_I_create_variables_A1.2C_A2.2C....2CA10_in_a_loop.3F

http://matlab.wikia.com/wiki/FAQ#How_can_I_share_data_between_callback_functions_in_my_GUI.28s.29.3F

Answer 2

[Xiangqi]

To Raldi,

Hi~ Have you found the way to update the value of "data" ?

I encountered the same problem and don't know how to update it.

Thanks for your help in advance.

Huang