Re: [NTG-context] Too much spacing in math mode between 'f' and 'l' (MkIV only)

2011-05-08 Thread Taco Hoekwater 

On 05/07/2011 01:26 PM, Hans Hagen wrote:


Hans and Taco, do you have any idea? Why is the inter-letter spacing
different in MkII and MkIV.


In math-vfu we have:

if italic then
width = width + italic
end

And that is for a reason. I might be a left over from when the math
engine was redone. So I need input from Taco.


I suspect that was from an earlier, bad interpretation of the opentype
math specification and that it can go away. But: much safer is to have
a big test file first using various (variable|opname) + other char
combinations.

Best wishes,

Taco
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Re: [NTG-context] Too much spacing in math mode between 'f' and 'l' (MkIV only)

2011-05-08 Thread Hans Hagen 

On 8-5-2011 1:22, Taco Hoekwater wrote:

On 05/07/2011 01:26 PM, Hans Hagen wrote:


Hans and Taco, do you have any idea? Why is the inter-letter spacing
different in MkII and MkIV.


In math-vfu we have:

if italic then
width = width + italic
end

And that is for a reason. I might be a left over from when the math
engine was redone. So I need input from Taco.


I suspect that was from an earlier, bad interpretation of the opentype
math specification and that it can go away. But: much safer is to have
a big test file first using various (variable|opname) + other char
combinations.


ok, for now i'll just comment that code

Hans

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Re: [NTG-context] Too much spacing in math mode between 'f' and 'l' (MkIV only)

2011-05-07 Thread Hans Hagen 

On 6-5-2011 10:57, Aditya Mahajan wrote:

On Fri, 6 May 2011, Vedran Miletić wrote:


Dana 4. svibnja 2011. 16:30 Vedran Miletić riva...@gmail.com je
napisao/la:


2011/5/4 Aditya Mahajan adit...@umich.edu


On Tue, 3 May 2011, Vedran Miletić wrote:

Hi,


please consider this:

\starttext
\math{flow_1}
\stoptext

When compiled with MkIV, space between f and l is quite big and
doesn't
look very good. Is it a bug?



Definitely looks like a bug in italic correction. In principle, the
spacing with virtual fonts (mkiv) should be the same as type 1 fonts
(mkii).



Thanks for clarification.



Just curious: is this ConTeXt or LuaTeX bug?


I am guessing that this is a context bug in creating a virtual font or
loading a virtual font. But I don't know how to debug this.

Hans and Taco, do you have any idea? Why is the inter-letter spacing
different in MkII and MkIV.


In math-vfu we have:

if italic then
width = width + italic
end

And that is for a reason. I might be a left over from when the math 
engine was redone. So I need input from Taco.


Hans

-
  Hans Hagen | PRAGMA ADE
  Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
 | www.pragma-pod.nl
-
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Re: [NTG-context] Too much spacing in math mode between 'f' and 'l' (MkIV only)

2011-05-06 Thread Vedran Miletić 
Dana 4. svibnja 2011. 16:30 Vedran Miletić riva...@gmail.com je
napisao/la:

 2011/5/4 Aditya Mahajan adit...@umich.edu

  On Tue, 3 May 2011, Vedran Miletić wrote:

  Hi,

 please consider this:

 \starttext
 \math{flow_1}
 \stoptext

 When compiled with MkIV, space between f and l is quite big and
 doesn't
 look very good. Is it a bug?


 Definitely looks like a bug in italic correction. In principle, the
 spacing with virtual fonts (mkiv) should be the same as type 1 fonts (mkii).


 Thanks for clarification.


Just curious: is this ConTeXt or LuaTeX bug?

Vedran Miletić
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Re: [NTG-context] Too much spacing in math mode between 'f' and 'l' (MkIV only)

2011-05-06 Thread Aditya Mahajan 

On Fri, 6 May 2011, Vedran Miletić wrote:


Dana 4. svibnja 2011. 16:30 Vedran Miletić riva...@gmail.com je
napisao/la:


2011/5/4 Aditya Mahajan adit...@umich.edu


 On Tue, 3 May 2011, Vedran Miletić wrote:

 Hi,


please consider this:

\starttext
\math{flow_1}
\stoptext

When compiled with MkIV, space between f and l is quite big and
doesn't
look very good. Is it a bug?



Definitely looks like a bug in italic correction. In principle, the
spacing with virtual fonts (mkiv) should be the same as type 1 fonts (mkii).



Thanks for clarification.



Just curious: is this ConTeXt or LuaTeX bug?


I am guessing that this is a context bug in creating a virtual font or 
loading a virtual font. But I don't know how to debug this.


Hans and Taco, do you have any idea? Why is the inter-letter spacing 
different in MkII and MkIV.


Aditya___
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Re: [NTG-context] Too much spacing in math mode between 'f' and 'l' (MkIV only)

2011-05-04 Thread Vedran Miletić 
2011/5/4 Aditya Mahajan adit...@umich.edu

 On Tue, 3 May 2011, Vedran Miletić wrote:

  Hi,

 please consider this:

 \starttext
 \math{flow_1}
 \stoptext

 When compiled with MkIV, space between f and l is quite big and
 doesn't
 look very good. Is it a bug?


 Definitely looks like a bug in italic correction. In principle, the spacing
 with virtual fonts (mkiv) should be the same as type 1 fonts (mkii).


Thanks for clarification.



 But I agree with Severin that you should not be using \math{flow_1} to
 represent the first flow. I hope that this example was for illustrating the
 spacing bug.


Do you suggest I follow Severin's solution?

Regards,

Vedran Miletić
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Re: [NTG-context] Too much spacing in math mode between 'f' and 'l' (MkIV only)

2011-05-03 Thread S Barmeier 
 
 Hi,
 
 please consider this:
 
 \starttext
 \math{flow_1}
 \stoptext
 
 When compiled with MkIV, space between f and l is quite big and doesn't
 look very good. Is it a bug?
 
Spacing between letters when treated as individual variables is always a
bit fishy. In this case the math mode suppresses the fl ligature, which
seems to be present in the font, whence the spacing is off. Something like

\starttext
\math{{\it flow}_1}
\stoptext

will help ConTeXt treat it as text and improve the spacing (and in this
case make use of the fl ligature).

Define \def\flow{\text{\it flow}} if you just want to say

\starttext
\math{\flow_1}
\stoptext

Severin
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Re: [NTG-context] Too much spacing in math mode between 'f' and 'l' (MkIV only)

2011-05-03 Thread Aditya Mahajan 

On Tue, 3 May 2011, Vedran Miletić wrote:


Hi,

please consider this:

\starttext
\math{flow_1}
\stoptext

When compiled with MkIV, space between f and l is quite big and doesn't
look very good. Is it a bug?


Definitely looks like a bug in italic correction. In principle, the 
spacing with virtual fonts (mkiv) should be the same as type 1 fonts 
(mkii).


But I agree with Severin that you should not be using \math{flow_1} to 
represent the first flow. I hope that this example was for illustrating 
the spacing bug.


Aditya___
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