Re: Integration with jsMath for HTML export of latex equations (feature request)

From: Carsten Dominik <carsten.dominik@gmail.com>
To: Darlan Cavalcante Moreira <darcamo@gmail.com>
Cc: org-mode Mailing list <emacs-orgmode@gnu.org>
Subject: Re: Integration with jsMath for HTML export of latex equations (feature request)
Date: Tue, 20 Oct 2009 10:53:22 +0200	[thread overview]
Message-ID: <0BBB5A37-C754-49B8-8741-B58D0713D3F6@gmail.com> (raw)
In-Reply-To: <4ad8a125.0ac0100a.2766.ffff9555@mx.google.com>

Hi Darlan,

On Oct 16, 2009, at 6:36 PM, Darlan Cavalcante Moreira wrote:

>
> Hello org-users,
>
> I know that it is possible to export equations as images if you set  
> the variable
> org-export-with-LaTeX-fragments to t, but I prefer to use jsMath
> (http://www.math.union.edu/~dpvc/jsMath/) for equation in HTML. The  
> problem is
> that when org-export-with-LaTeX-fragments is set to nil org-mode  
> interprets
> underlines, hats and Greek letters and replace them in the generated  
> HTML.

Would

#+OPTIONS ^:nil

already do what you want?

If you get this working, can I ask you to write up some instructions
on how to use this with Org and post them here?

Thanks.

- Carsten

>
> I agree that this is nice in most cases, but I need them to be left  
> untouched,
> since they will be later interpreted by jsMath when I'm viewing the  
> page in a
> browser that supports java-script. Therefore, my "feature request"  
> is disabling
> this smart behavior of org-mode when latex fragments are not  
> converted to
> images.
>
> I also need to add a line in the HTML header to load the jsMath  
> script, but this is
> easily accomplished with the line
> #+STYLE: <SCRIPT SRC="../jsMath/easy/load.js"></SCRIPT>
> in the org-file header.
>
> Here are some advantages and disadvantages about using jsMath  
> instead of images.
> Advantages:
> - It's really pretty when you have all the fonts installed and you  
> can zoom
>   without any loss of quality.
> - No need to generate images when exporting
>   + When you see the generated HTML page the jsMath script is run  
> each time you
>     reload the page. Because modern browsers are increasing more and  
> more the
>     efficiency of the java-script engine this is not a problem even  
> if there are
>     a lot of equations in the generated page.
>   + On the other hand, creating images when exporting can take  
> considerable
>     time when there are man equations.
>
> Disadvantages
> - More difficult to setup
>   + you have to install jsMath for authors, since you are creating  
> pages with it.
>   + you have to install jsMath for users, that is, install the fonts  
> that will
>     be used. If this is not done, jsMath will use images for the  
> equations. You
>     won't need to generate images when exporting, since jsMath  
> already has all
>     images (it just put the pieces together)
> - It is more inconvenient to send the generated HTML page to a  
> friend, since
>   your friend will need to install the fonts used by jsMath.
>
>
> Darlan
>
>
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- Carsten