1

I am making a self function to change te text displayed by the cursor in my GUI figure. This is what I have done by the time: 

dcm=datacursormode(hAxes.figure);
datacursormode on
set(dcm,'update',@myfunction)




function output_txt = runnumber(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');
%getCursorInfo(dcm)
%inputDrDataCell

% Get the handle to the data cursor.
menu = findall(get(gcf,'Children'),'Type','uicontextmenu');
menuCallback = get(menu,'Callback');
dataCursor = menuCallback{2};

% Get the coordinates if a datatip exists.
info = getCursorInfo(dataCursor);
if ~isempty(info)
number = info.DataIndex   
end
output_txt = {['X: ',num2str(pos(1),4)],...
['Y: ',num2str(pos(2),4)],...
['Run number:',num2str(number)]};

% 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
end

However, I would like to pass more input arguments to @myfunction in order to display the name of the axis, the raw data file etc. Any help?

4

2 回答 2

2

通过使用函数句柄和单元格中的附加参数向回调提供附加参数：

set(dcm,'update',{@myfunction,arg3,arg4});

这些对应于函数的第三个和第四个输入：

function output_txt = runnumber(obj,event_obj,arg3,arg4)
于 2013-07-02T11:41:54.280 回答
1

另一种方法是使用匿名函数句柄，Hugh Nolan 的回答没有错，如下所示：

set(dcm, 'update', @(obj,event) runnumber(obj,event,arg3,arg4));

！

于 2013-07-02T14:05:49.567 回答