Daniel@0: function g
Daniel@0: %here is how one creates a function ("callback") which does something
Daniel@0: %(prints the node label) when you click on the node's text in Matlab figure.
Daniel@0: %
Daniel@0: % Leon Peshkin  http://www.ai.mit.edu/~pesha
Daniel@0: %
Daniel@0: %draw_graph(...)
Daniel@0: 
Daniel@0:      % "gca" is the current "axes" object, parent of all objects in figure
Daniel@0:      % "gcbo" is the handle of the object whose callback is being executed
Daniel@0:      % "findall" gives handles to all elements of a given type in the figure
Daniel@0: text_elms = findall(gca,'Type','text');  
Daniel@0: for ndx = 1:length(text_elms)
Daniel@0:   callbk = 'my_call(str2num(get(gcbo,''String'')))'; 
Daniel@0:   set(text_elms(ndx), 'ButtonDownFcn', callbk);  % assume the node label is a number
Daniel@0: end