Hello Sergiu
>
> I have committed today the first implementation of a new XWiki feature:
> rendering mathematical equations into images. It is available as a
> standalone component, and as a syntax 2.0 macro.
>
Nice job, I did not try it as I have no concrete use now, but anyway,
that's a really nice feature as equations are always hard to write for
nice display.
> About the functionality.
>
> Equations are written in the TeX/LaTeX syntax, which is pretty simple,
> and seems to be the syntax of choice for mathematical equations in other
> wikis, too. The macro can distinguish between inline and block equations
> and render them accordingly. The output can be either PNG (the default
> one), GIF or JPEG. While PNG is definitely the best, I kept the other
> two in case somebody really wants to use ancient browsers that only
> understand GIF.
>
> Q: Should I leave just PNG as the output format?
>
I think, at least png and jpg should be kept. Png as default, and jpg as
optional (there are still a lot of jpg fans i guess), for the GIF
format, i don't think it is necessary.
> Another feature is that the font size can be specified, in order to
> render larger or smaller equations. All the font size commands from
> LaTeX (from \tiny to \Huge) have an equivalent. I renamed them to a more
> easy to understand name (also because the configuration is case
> insensitive, so there's no difference between large and LARGE).
>
> By default images are generated so that the font looks relatively OK
>
> This new cache might increase the memory
> requirements, but fortunately it is easy to configure.
>
> The rendering macro is located in
> platform/core/xwiki-rendering/xwiki-renderig-macros/xwiki-rendering-macro-equation,
>
> and the macro can be used with
>
> {{equation}}\sum_{i=0}^{\infty}{{/equation}}.
>
> Q: Is the macro name appropriate? Do you know of a better one?
>
I don't think you can find a better one...
>
>
> Future work:
> - make sure that there are no security issues with the Native backend
> - add support for MathML display for the clients that understand it
> - improve the alignment of images (especially for the Native backend),
> as right now they are a bit raised above the text baseline
>
>
> Many thanks to Guillaume Legris who provided the starting point for this
> component.
>
Keep up the good work...
And thanks for this nice feature.
Jean
--
----
Jean Couteau
Code Lutin - http://www.codelutin.com
44 Bd des Pas Enchantés - 44230 St-Sébastien/Loire
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