Which of the three lines is generating the error? Or is it some other line?
set(handles.edit1,'String',num2str(h_dist1)); set(handles.edit2,'String',num2str(h_dist2)); set(handles.edit3,'String',num2str(h_dist3));
The error message indicates that the code is trying to access a field (via the period) of a non-structure array. So in the above three lines of code, the potential error is due one of the three handles.edit1/2/3 accesses. You should put a breakpoint at the first of these three lines, and re-run the code until it pauses here. Look at the handles structures - does it have fields names edit1, edit2, and edit3? Is the structure empty? Are these the names of your edit boxes, or have their Tags changed?
