I am currently trying to work out how the perpendicular arrows work, and I fail.
Taking:
\draw [arrow] (node1) -- node[sloped, above] {Caption} (node1 |- node2.north west);
I suspected that the notation meant:
Draw an arrow from node 1, to the north-west corner of node 2.
Make the arrow perpendicular to node 1.
Further attempts to draw arrows told me: No, that's not it. I have sadly failed to figure out what exactly the notation is supposed to be doing though! Is there any "explanation for dummies" that will lead me to understand what exactly
node1 |-
Is supposed to do?
Thanks!