Can I insert a vertically centered image in math mode?

Question

In Mikael Öhman's answer to this question, he provides some code for placing an image in math mode as a symbol using the \mathord declaration. I can define a new command in the preamble using this, and it works, but the image is placed on the baseline of the equation.

I want it to be a good deal taller than typical text, so ideally I could use \vcenter to center it vertically. When I do include the centering, the image is treated as if it were as wide as the page, i.e. there are about 6 inches of white space following it. (The image is closely cropped, so the white space is certainly created by LaTeX.

Where is the glitch in my code?

\newcommand{\bone}{\mathord{\includegraphics[scale=0.5]{../images/dog_bone.pdf}}}

score 15 · Accepted Answer · answered Mar 01 '11 at 09:41

15

Use \hbox within \vcenter:

\vcenter{\hbox{\includegraphics{filename}}}

You could add \vcenter{\hbox{...}} to your macro definition if you always use it vertically centered.

Btw. generally you could simply use additional braces instead of \mathord to get the normal spacing.

answered Mar 01 '11 at 09:41

Stefan Kottwitz

231,401

I'm getting an error with it (in LuaLaTeX): ! Missing $ inserted. <inserted text> $ l.415 \vcenter {\hbox{\includegraphics[scale=0.27]{./figures/donkey}}}} ?. Any idea how to solve? – nutty about natty Jul 10 '13 at 13:05
3

@nuttyaboutnatty \vcenter requires math mode, so just put it in $...$ . – Stefan Kottwitz Jul 10 '13 at 13:53

Can I insert a vertically centered image in math mode?

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