Invalid object handle error in Matlab

Question

I have the following code which is a graphic rendering of the movement of a satellite around the Earth.

function ex
global state;
fh = figure(\'Menu\',\'none\',\         


        

Answer 1

Finally, I have found that there was a cla command line, which was the guilty of the error, in the main program.

Answer 2

I suspect this is for a Matlab GUI?

If so you need to pass the handles variable to the script, normally matlab passes eventdata and hObject as well as a standard procedure for all functions, callbacks and etc.

function ex(hObject, eventdata, handles)

And don't forget to update the GUI data to close the function.

guidata(hObject,handles);

I think all your nested functions that use the handles structure are going to require this as well.

Hope this helps.