Re: math symbol: blacktriangle

[Andreas Mang <mang@imt.uni-luebeck.de>]

Hi Aditya,

Thanks for the advice. As I am a newby, I'd decided to respond to the list:

I had a look at "char-def.lua" and I think the only thing that needs to be done is to add

mathname="blacktriangle",

to

[0x25B4]={
  adobename="blackuppointingsmalltriangle",
  category="so",
  description="BLACK UP-POINTING SMALL TRIANGLE",
  direction="on",
  linebreak="al",
  unicodeslot=0x25B4,
 },


The unicodeslot is consistent to what I've found in the famous WWW

http://www.fileformat.info/info/unicode/char/25b4/index.htm


Same goes for

 [0x25BE]={
  category="so",
  description="BLACK DOWN-POINTING SMALL TRIANGLE",
  direction="on",
  linebreak="al",
  unicodeslot=0x25BE,
 },

with mathname="blacktriangledown" under the assumption you'd like to be consistent with the naming convention of latex.

Right?

Cheers,
Andreas


 
On Jul 17, 2012, at 7:39 PM, Aditya Mahajan wrote:

> On Tue, 17 Jul 2012, Andreas Mang wrote:
> 
>> Dear all,
>> 
>> The \blacktriangle and \blacktriangledown symbol seem to be missing, 
>> though \blacktriangleright and \...-left are defined. Is there a quick 
>> way to add missing symbols by myself from the knowledge of Unicode / XML 
>> identifier (http://www-sop.inria.fr/marelle/tralics/doc-b.html)?
> 
> For opentype math fonts, have a look at char-def.lua. To add missing 
> symbols, you need to add appropriate fields in the lua table.
> 
> The hard part is verifying the symbol to unicode slot mapping (the list at 
> tralics is not always consistent with the ams list that is used by 
> unicode-math package). If you know the right mappings, add a patch to 
> char-def.lua and send it to the list (or the dev-context list); otherwise, 
> just send the mappings and I can add them to the lua table.
> 
> Aditya
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--
Andreas Mang, MSc
   Research Associate

UNIVERSITY OF LUEBECK
   INSTITUTE OF MEDICAL ENGINEERING

   Division of Computer Science, 
   Engineering and Natural Sciences

   Ratzeburger Allee 160, Building 64
   23562 Luebeck, Germany

   Phone: +49 (0) 451 500 5416
   Fax:   +49 (0) 451 500 5403
   mang@imt.uni-luebeck.de
   http://www.imt.uni-luebeck.de

___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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