Width of minus sign in legend

ROOT
1

Dear Rooters,

Apologies for this question, I have been searching high and low for the answer but haven’t found it yet! My problem is: I have a legend which shows “e^+p” and “e^-p” as two entries. The minus sign looks less wide than the plus sign, and this makes the legend look a bit untidy. Is there a way to get a minus sign that is the same width as the plus sign? A PAW user suggested that if I was using PAW, [-] would solve the problem. I haven’t used PAW, but it looks like this means to use a Greek dash (see for example Figure 7.12 on p.123 of the PAW User’s Guide linked from the PAW webpage). Is there a root equivalent? Apologies again for such a trivial question.

Many thanks!
Katie

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I am investigating

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This is how the minus appears. There not much we can do.
May be something like:

TLatex t(.5,.5, “e^{#scale[1.5]{-}p}”);

4

In typography there are three different pauses/minuses which you can achieve (I’m sure you know this already) in LaTeX using - – — or $-$. There is difference in length between normal dash “-” and minus “$-$” (last one is longer).

I would suggest:

I haven’t test it, hope it works fine.

…:: edit

I see, that latex works in mathematical mode by default, so it should be little bit different:

or maybe

5

What you suggested doesn’t work with TLatex. The only minus available is the one you get by typing the [minus] key on the keyboard.

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Katieo,
Well, in that case, if you want produce nice pictures, you must put some markers instead of titles and using original LaTeX and additional packages (pstricks as far I remember) you can overwrite this markers in LaTeX.

If you really need this.

Couet, but does TLatex(,-) prints the same output like normal “-” (without LaTeX). In LaTeX these both are different.

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TLatex is a subset of the real LaTex and is far to implement all LaTex does.

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Thank you all, I appreciate your comments. I tried to use #scale, but to my eye it makes the “-” too thick, although it is the right length. I will try pstricks…

Best wishes,
Katie

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I think I may have come up with a quick and dirty fix. Instead of “-”, I can use the underscore character, “_” then I can use the new #lower command (in Version 5.28/00) to raise the _ upwards. Do you think it would work? I currently use version 5.17/05, so the new commands aren’t available to me at the moment.

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Yes 5.17 is too old for #lower. But the idea you have should be ok.

11

FYI, I found a better solution. I changed the font of the plus and minus signs to font 12 (symbol-medium-r-normal) i.e #font[122]{-}. Then both appear the same width.

I suppose the font I am using in the legend is just unsuitable.

Thanks all!

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#plus and #minus are now implemented in 5.34 and trunk

1 Like
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FWIW, I managed a workaround for those bound to previous versions (like 5.34/05) by using the symbol font:#font[122]{-}
This requires TTF support.

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@ adavid:

Look at katieo last post in this thread. That exactly what was said. I Guess your post can be deleted if you agree