I often want to add what I call "callout arrows" to draw attention to some part of a technical graphic, such as the two curved paths with arrows below:
Although I have used TikZ only a few times, my question is not "will someone do this for me?" but rather, "could you outline to me the philosophy or approach you take?" to adding a curved path with an arrow to a technical graphic, which may be placed in a variety of positions and/or take on a variety of lengths depending on the particular task at hand.
Right now, I am playing around with using
out commands, and doing this by placing a path through particular coordinates, and manually adjusting the angles in and out, but the downside is that it seems every new callout I want is a brand new problem. So I am mainly wondering what approaches others would use for this.