When writing English text, LaTeX adds a larger space after the end of a sentence than between words. This is in accordance with local typographic standards. Things get complicated when you let a machine decide what exactly makes up the end of a sentence.
Let’s assume you have two coordinates or nodes in your TikZ picture. You now want to add an annotation to identify the distance between these two points. However, you only want to show the distance along the x-axis whereas you don’t care for the distance along the y-axis. This means that you expect a straight horizontal line.
This article will show you how to achieve that goal without any need to manually tweak coordinates.
