# Adding text to plot that is a crystal direction

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Hey, so I want to add text to a plot that is a crystal direction. Sounds easy enough, right?

It's easy to do [110], but what if I want to do [-110]? If you are familiar with crystallography, you know that the negative sign should be above the 1. How can I do this?

##### 1 Comment

Star Strider
on 10 Jan 2017

### Accepted Answer

Walter Roberson
on 10 Jan 2017

Based on http://tex.stackexchange.com/questions/9318/question-mark-over-equals-sign and https://yoo2080.wordpress.com/2014/11/30/putting-a-bar-or-a-tilde-over-a-letter-in-latex/ I see you can do

text(xpos, ypos, '$\stackrel{-}{1} 1 0$','interpreter','latex')

or '$\bar{1} 1 0$' or '$\overline{1} 1 0$'

The shortest line is with \bar, then \stackrel, and \overline is longest.

The gap between the line and the digit appears to be smallest with \bar, then \overline, and largest with \stackrel

I find the \stackrel version easiest to read.

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