Re: Kerning between primes and left parenthesis (again)

[Hans Hagen <pragma@wxs.nl>]

On 7/31/2017 11:21 AM, Mikael P. Sundqvist wrote:
> On Thu, Jul 20, 2017 at 2:53 PM, Hans Hagen <pragma@wxs.nl> wrote:
>> On 7/20/2017 7:18 AM, Mikael P. Sundqvist wrote:
>>
>>> Den 12 juli 2017 10:17 fm skrev "Mikael P. Sundqvist" <mickep@gmail.com
>>> <mailto:mickep@gmail.com>>:
>>>
>>>      Dear Hans,
>>>
>>>      now, in luatex 1.05, that the primes are "constructed" in new manner,
>>>      I wonder if there is a way to specify in a goodie file the kerning
>>>      between characters, in particular primes and the left parenthesis?
>>>
>>>      I tried
>>>
>>>               kernpairs = {
>>>                  [0x2032] = {[0x0028] = -1000, }, -- prime and (
>>>               },
>>>
>>>      but that does not seem to have any effect.
>>>
>>>      The pre-1.05 modification
>>>
>>>               dimensions = {
>>>                   default = {
>>>                       [0x2044] = { xoffset = 275, width = 600 },
>>>                       [0x2032] = { xoffset = 50, width = 290 }, -- prime
>>>                       [0x2033] = { xoffset = 50, width = 690 }, -- double
>>>      prime
>>>                       [0x2034] = { xoffset = 50, width = 1090}, -- triple
>>>      prime
>>>                       [0x2057] = { xoffset = 50, width = 1490}, --
>>>      quadruple prime
>>>               },
>>>           },
>>>
>>>      (which is a non-optimal way of solving this issue since it has side
>>>      effects) does not change anything anymore.
>>>
>>>      So, is there now a way to do this cleanly now that the mechanism is
>>>      changed?
>>>
>>>      /Mikael
>>>
>>>
>>> Hi,
>>>
>>> should I interpret the silence that this is currently not possible, or
>>> that you, Hans, is completely fed up with this subject? :-)
>>
>> you rule out the possibility that i have other things to do
>>
>> anyway, use
>>
>>      0xFE932
>>
>> etc instead as primes get remapped
>>
>> -----------------------------------------------------------------
>>                                            Hans Hagen | PRAGMA ADE
>>                Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
>>         tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
>> -----------------------------------------------------------------
>> ___________________________________________________________________________________
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> 
> I'm sorry but I cannot get it to work.
> 
> %%% my local lucida-opentype-math.lfg, located in the same directory
> as the tex file (and loaded)
> ----- kern_250 = { bottomright = { { kern = -250 } }, force = true }
> 
> local function FixRadicalDisplayStyleVerticalGap(value,target,original)
>      local o = original.mathparameters.RadicalVerticalGap -- 50
>      return 2 * o * target.parameters.factor
> end
> 
> return {
>      name = "lucida-opentype-math",
>      version = "1.00",
>      comment = "Goodies that complement lucida opentype.",
>      author = "Hans Hagen",
>      copyright = "ConTeXt development team",
>      mathematics = {
>          parameters = {
>              RadicalDisplayStyleVerticalGap = FixRadicalDisplayStyleVerticalGap,
>          },
>          kernpairs = {
>             [0x1D44E] = {[0x1D44F] = 1000,}, -- 𝑎𝑏 demo
>             [0xFE932] = {[0x0028] = 1000,} -- remapped prime and (
>          },
> }
> }
> %%%
> 
> %%% the tex file
> \setupbodyfont[lucidaot]
> \setupmathematics[kernpairs=yes]
> 
> \starttext
> $f'(x)ab$
> \stoptext
> %%%
> 
> The result is attached. It works ok for the pair ab, but not for prime
> and (. Is the ( also remapped (while greping for it in the source, I
> could not find any clue).
> 
> Maybe it is better to ping the maintainers of the font?
just change the dimensions

         dimensions = {
             default = { -- experimental values
                 [0x2044] = { xoffset = 275, width = 600 },
              -- [0x2032] = { yoffset = -10 },
[0xFE932] = { width = 200 },
[0xFE933] = { width = 500 },
[0xFE934] = { width = 800 },
             },
         },


-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
        tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-----------------------------------------------------------------
___________________________________________________________________________________
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
webpage  : http://www.pragma-ade.nl / http://context.aanhet.net
archive  : https://bitbucket.org/phg/context-mirror/commits/
wiki     : http://contextgarden.net
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