Nick wrote.
> Hi Angel, A very timely contribution. I was looking for a way to
> showpositiveand negative
> charges on atoms.
> A few experiments later I find that
> draw {atomno=4} "+"
> draw {atomno=4} "-"
> works quite nicely.
Nick, why don't you use labels for that?
select atomno=4; label + # or label "+"
set labelOffset 0 0 # if you want them right over the atom center
font label 22 serif bold
color label orange
> Control over the colour and font size would be great and Bob suggested that
> Unicode characters
> might also work but although they might provide even more scope, I'm unsure
> how to deploy
> them.
Unicode characters may be used in labels and in echos (3D-positioned echos are
another
choice, by the way, like this:
label "\u21D2"
where 21D2 is the hexadecimal Unicode for a double right-arrow; in my tests,
not all
unicode characters are allowed, but many are.
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