What does these commands,
\ht stand for? I assumed that they are from TikZ and PGF, because I haven't seen them elsewhere.
I think the
\wd stands for "width" and the
\ht stands for "height", and they somehow obtain the width and the height of the shape that comes after.
I would like to know if I am right about that. Then I would like to know what
\tp stands for, and finally I want to ask, if there is any other such commands out there.
I looked for them in the manual to no avail, then also on Google, but the phrase is just too short, probably.