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 17:17:46 +0200	[thread overview]
Message-ID: <209B33EA-DA36-46B1-BAAC-33687F4DF537@gmail.com> (raw)
In-Reply-To: <4addc1a3.141bf30a.126a.0202@mx.google.com>

On Oct 20, 2009, at 3:56 PM, Darlan Cavalcante Moreira wrote:

>
> Hi Carsten,
>
> The option "#+OPTIONS ^:nil" did the trick with underlines and hats,  
> but Greek
> letter are still replaced. Since they are ignored by jsMath I get  
> the correct
> equations and the only minor annoyance is that the font of the Greek  
> letters is
> not as nice as if it were replace by jsMath (jsMath fonts are  
> equivalent to
> latex fonts). If it is something easy to do, an option to also turn- 
> off the
> replacements of Greek letters by org-mode would be nice, but don't  
> bother if it
> is to much work.

You can just use LaTeX conventions and write $\alpha$ instead of the  
lazy \alpha.  That should do the trick.

- Carsten

>
> I'll write the instructions of how to use jsMath with org-mode here  
> soon.
> Thanks Carsten,
>
> Darlan
>
>
>
>
>
> At Tue, 20 Oct 2009 10:53:22 +0200,
> Carsten Dominik <carsten.dominik@gmail.com> wrote:
>>
>> 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
>>>
>>>
>>> _______________________________________________
>>> Emacs-orgmode mailing list
>>> Remember: use `Reply All' to send replies to the list.
>>> Emacs-orgmode@gnu.org
>>> http://lists.gnu.org/mailman/listinfo/emacs-orgmode
>>
>> - Carsten
>>
>>
>>

- Carsten