Text in annotations is longer when using colors. Bug?

2020 7 28
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更新时间：2020 7 28
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Using annotations in matlab I noticed that when I use colored text the spacing between words increases. See the example below
Is this a know bug? Can it be fixed with some workaround?
annotation('textbox',[.2 .5 0 0],'String',["a a a a a a a a a a" "a a a a a a a a a a"],'FitBoxToText','on','FontName','consolas','FontSize',14)
annotation('textbox',[.2 .5 0 0],'String',["a a a a a a a a a a" "\color{red}a \color{black}a \color{red}a \color{black}a \color{red}a \color{black}a \color{red}a \color{black}a \color{red}a \color{black}a"],'FitBoxToText','on','FontName','consolas','FontSize',14)

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Adam Danz
Adam Danz 2020-7-28
编辑：Adam Danz 2020-7-28
There does appear to be a difference in width of about 1 pixel or so that accumulates with every red letter. It can be seen when plotting your two examples on top of eachother.
dpb
dpb 2020-7-28
Try various renderers to see if makes any difference.
Wonder if bold font would match up...
giannit
giannit 2020-7-28
编辑：giannit 2020-7-28
@AdamDanz The same happens also in the case we replace all \color{red} with \color{black}.
I don't think this is a wanted feature by developers, isn't it?
giannit
giannit 2020-7-28
@dpb what do you mean with renderer? Interpreter? If so, we can only use 'tex'.
The same happens with bold
annotation('textbox',[.2 .5 0 0],'String',["\bfa a a a a a a a a a" "\color{red}a \color{black}a \color{red}a \color{black}a \color{red}a \color{black}a \color{red}a \color{black}a \color{red}a \color{black}a"],'FitBoxToText','on','FontName','consolas','FontSize',14)
Adam Danz
Adam Danz 2020-7-28
编辑：Adam Danz 2020-7-28
For render info
https://www.mathworks.com/help/matlab/creating_plots/resolving-low-level-graphics-issues.html#buwj00i-1
I tried painters but the problem persists. I doubt the offset is intentional.
dpb
dpb 2020-7-28
I suspect it's all tied in to the font family and the TeX implementation. Probably not much could be done as AFAIK TMW just picked up an opensource TeX distribution and embedded the necessary pieces.

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giannit
giannit
2020-7-28

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dpb
dpb
2020-7-28

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