Re: Difference between MKIV and MKII

[Peter Rolf <indiego@gmx.net>]

Hans Hagen schrieb:
> Peter Rolf wrote:
>> Hans Hagen schrieb:
>>> Peter Rolf wrote:
>>>> Peter Rolf schrieb:
>>>>> Hi Aditya,
>>>>>
>>>>> Aditya Mahajan schrieb:
>>>>>> Quoting Hans Hagen <pragma@wxs.nl>:
>>>>>>
>>>>>>> Aditya Mahajan wrote:
>>>>>>>> Hi,
>>>>>>>>
>>>>>>>> I get significantly different white spaces (and hence page breaks)
>>>>>>>> while using mkiv and mkii. Is this expected, or should I try to create
>>>>>>>> minimal example exhibiting such "problems"?
>>>>>>> indeed
>>>>>> Here is a minimal example. The spaces around formulas are more.
>>>>>>
>>>>> in the meantime I have also updated my \texmf subtree (LM should be up
>>>>> to date). Using your example, I now get a
>>>>>
>>>>> 12pt text font with pdftex and
>>>>> 10pt text font with luatex (but 12pt in math mode).
>>>>>
>>>>> So maybe you have the same problem?
>>>>>
>>>>> If I remember it right, luatex normally used the OTF variant of LM in my
>>>>> prior test. Now it's also T1, but with an additional font (this one is
>>>>> used for the 10pt text) in comparison to pdftex:
>>>>>
>>>>> lmrroman12-regular (Embedded Subset)
>>>>> Type: Type1 (CID)
>>>>> Encoding: Identity-H
>>>>>
>>>> stupid me. this is otf :)
>>>>
>>>> http://partners.adobe.com/public/developer/opentype/index_font_formats.html
>>> the lm 12 file says ...
>>>
>>>   ["design_size"]=0,
>>>   ["familyname"]="LMRoman12",
>>>   ["fontname"]="LMRoman12-Regular",
>>>   ["fullname"]="LMRoman12-Regular",
>>>
>>> so it looks like we have a problem there; in that case mkiv assumes 10pt
>>>
>> i see. which format is used for "design_size"? i tried "12", but i still
>> get 10pt. "12pt" gives a compilation warning (using luac); i should use
>> texluac, right? :D
> 
> 120
>
makes sense

> but there's also a problem in the loader (in font-otf)
> 
> 
>          local designsize = data.designsize or data.design_size or 100

it took me a minute to see, that the 'or 100' is not obsolete. lua is
tricky and a bit nuts.

>          if designsize == 0 then
>              designsize = 100
>          end
>          tfm.designsize         = (designsize/10)*65536
>
> 
> 
> 
> i'll upload a new zip later
>
ok. i'll retest the example then.

> i made a mechanism that can 'repair fonts' so lm is fixed (well, the 
> error is intercepted
>
> Hans
> 
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