e.g. if I need to draw a diagram like this:
.....
: v
X/ : Y/
: :
:...:
where X/ and Y/ are two nodes, and the only arrow link link from X/ to Y/ and attached to Y/ on the top, how to do it?
e.g. if I need to draw a diagram like this:
.....
: v
X/ : Y/
: :
:...:
where X/ and Y/ are two nodes, and the only arrow link link from X/ to Y/ and attached to Y/ on the top, how to do it?