Re: [NTG-context] Fonts and equations

[Henri Menke]

On 05/19/2018 08:01 AM, Ulrike Fischer wrote:
> Am Thu, 17 May 2018 05:19:05 -0600 schrieb Lance Larsen:
> 
>> One really nice feature with equations is that by default you can
>> search for variable names in equation in a PDF reader like
>> acrobat.
> 
> I can't search for e.g. the a or z if I compile

You probably have to search for 푎 (U+1D44E) and 푧 (U+1D467).

> 
> \starttext
> 
> $z_1 = x_1 + y_1$
> 
> $a = b + c$
> 
> \stoptext
> 
> 

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Re: [NTG-context] Fonts and equations

[Ulrike Fischer]

Am Thu, 17 May 2018 05:19:05 -0600 schrieb Lance Larsen:

> One really nice feature with equations is that by default you can
> search for variable names in equation in a PDF reader like
> acrobat.

I can't search for e.g. the a or z if I compile

\starttext

$z_1 = x_1 + y_1$

$a = b + c$

\stoptext


-- 
Ulrike Fischer 
http://www.troubleshooting-tex.de/

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Re: [NTG-context] Fonts and equations

[Lance Larsen]

Henri,

Thanks for the suggestion. I tried to add the additional fonts, but this
did not seem to make a difference. The math equations render fine, but a
search performed for terms in an equation still does not work when I
specify the font. When I remove the font specification, it works fine.
There must be some difference in the font that is used even if I don't
specify a math font. Any other thoughts about why the math font changes or
how to get a math font that is searchable, or get back to the default math
font?

-Lance


--
>
> Message: 4
> Date: Fri, 18 May 2018 18:55:14 +1200
> From: Henri Menke 
> To: ntg-context@ntg.nl
> Subject: Re: [NTG-context] Fonts and equations
> Message-ID: <12743277-ebd0-67c7-2393-fe33e97bf...@gmail.com>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
>
>
> On 17/05/18 23:19, Lance Larsen wrote:
> > I have a context document with several equations. One really nice
> > feature with equations is that by default you can search for variable
> > names in equation in a PDF reader like acrobat. However, I needed to
> > configure the document to use arial for the text. Once I do this, the
> > equations are no longer searchable. I assume something happened to the
> > mathematics font. How to I change the font for the document text, but
> > keep the math equations searchable? Is there a way to change the
> > document font, but not affect the math font? Here is a sample of how I
> > configured the font. The equations are no longer searchable.
> >
> > % Load the Arial font values for regular, italics, bold, etc.
> > \starttypescript [serif] [arial]
> >\definefontsynonym [Serif]   [name:arial]
> >\definefontsynonym [SerifBold]   [name:arialbold]
> >\definefontsynonym [SerifItalic] [name:arialitalic]
> >\definefontsynonym [SerifSlanted][name:arialitalic]
> >\definefontsynonym [SerifBoldItalic] [name:arialbolditalic]
> >\definefontsynonym [SerifBoldSlanted][name:arialbolditalic]
> >\definefontsynonym [SerifCaps]   [name:arial]
> > \stoptypescript
> >
> > % Now we define the 'arial' font as an available option
> > \definetypeface [arial][rm] [serif] [arial]
>
> The typeface "arial" you defined has no math font (and no sans and no
> mono font).  Add those and you should be fine:
>
> \definetypeface [arial] [rm] [serif] [arial]
> \definetypeface [arial] [ss] [sans]  [modern]
> \definetypeface [arial] [tt] [mono]  [modern]
> \definetypeface [arial] [mm] [math]  [modern]
>
> >
> > % Set 'arial' 10pt as the default font for the document
> > \setupbodyfont [arial,rm,10pt]
> >
> > \starttext
> >
> > $z_1 = x_1 + y_1$
> >
> > $a = b + c$
> >
> > \stoptext
> >
>
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Re: [NTG-context] roadmap

[Christoph Reller]

On Tue, 15 May 2018 16:51:13 +0200 luigi scarso  wrote:
>
> On Tue, May 15, 2018 at 4:46 PM, Christoph Reller <
> christoph.rel...@gmail.com> wrote:
>
> > On Tue, 15 May 2018 08:23:04 +0200 luigi scarso 
> > wrote:
> >
> >>
> >> On Tue, May 15, 2018 at 8:15 AM, Christoph Reller <
> >> christoph.rel...@gmail.com> wrote:
> >>
> >> >
> >> > Our company is producing (and weekly updating) 67 manuals and
> >> > technical documents from more than 900 ConTeXt source files for our
> >> > software products. The output PDFs are converted to PDF/A-2a, which is
> >> > only possible due to ConTeXt's tagging.
> >> >
> >> What do you think of verapdf ?
> >>
> >
> > Well, verapdf is only a validator and not a converter.
> >
> > And, by the way, there is no reasonable way to convert from, say, PDF/A-2b
> > to PDF/A-2a without a rediculous amount of AI or manual input because the
> > tagging cannot be created out of the blue. It has to be there from the
> > document's birth. This is what makes this ConTeXt feature so precious.
> >
> sure, the point is  if   verapdf  is reliable as validator.

In my opinion, verapdf has one advantage a couple of disadvantages:

+ If everything works out as planned then verapdf may become one of
the most widely adopted validators, free of charge and open source

- verapdf is yet relatively new and hence inmature
- verapdf currently only validates against the PDF/A specifications
and not (really) against the PDF specifications. This is bad because
the latter are integral parts of the former.
- verapdf does not validate embedded streams such as images, font
files and color profiles.

In short: Only if you are sure that the input document is a valid PDF,
then verapdf can be used to test PDF/A conformance.

Cheers,
Christoph
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Re: [NTG-context] Fonts and equations

[Henri Menke]

On 17/05/18 23:19, Lance Larsen wrote:
I have a context document with several equations. One really nice 
feature with equations is that by default you can search for variable 
names in equation in a PDF reader like acrobat. However, I needed to 
configure the document to use arial for the text. Once I do this, the 
equations are no longer searchable. I assume something happened to the 
mathematics font. How to I change the font for the document text, but 
keep the math equations searchable? Is there a way to change the 
document font, but not affect the math font? Here is a sample of how I 
configured the font. The equations are no longer searchable.


% Load the Arial font values for regular, italics, bold, etc.
\starttypescript [serif] [arial]
   \definefontsynonym [Serif]               [name:arial]
   \definefontsynonym [SerifBold]           [name:arialbold]
   \definefontsynonym [SerifItalic]         [name:arialitalic]
   \definefontsynonym [SerifSlanted]        [name:arialitalic]
   \definefontsynonym [SerifBoldItalic]     [name:arialbolditalic]
   \definefontsynonym [SerifBoldSlanted]    [name:arialbolditalic]
   \definefontsynonym [SerifCaps]           [name:arial]
\stoptypescript

% Now we define the 'arial' font as an available option
\definetypeface [arial]    [rm] [serif] [arial]


The typeface "arial" you defined has no math font (and no sans and no 
mono font).  Add those and you should be fine:


\definetypeface [arial] [rm] [serif] [arial]
\definetypeface [arial] [ss] [sans]  [modern]
\definetypeface [arial] [tt] [mono]  [modern]
\definetypeface [arial] [mm] [math]  [modern]



% Set 'arial' 10pt as the default font for the document
\setupbodyfont [arial,rm,10pt]

\starttext

$z_1 = x_1 + y_1$

$a = b + c$

\stoptext



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[NTG-context] Fonts and equations

[Lance Larsen]

I have a context document with several equations. One really nice feature
with equations is that by default you can search for variable names in
equation in a PDF reader like acrobat. However, I needed to configure the
document to use arial for the text. Once I do this, the equations are no
longer searchable. I assume something happened to the mathematics font. How
to I change the font for the document text, but keep the math equations
searchable? Is there a way to change the document font, but not affect the
math font? Here is a sample of how I configured the font. The equations are
no longer searchable.

% Load the Arial font values for regular, italics, bold, etc.
\starttypescript [serif] [arial]
  \definefontsynonym [Serif]   [name:arial]
  \definefontsynonym [SerifBold]   [name:arialbold]
  \definefontsynonym [SerifItalic] [name:arialitalic]
  \definefontsynonym [SerifSlanted][name:arialitalic]
  \definefontsynonym [SerifBoldItalic] [name:arialbolditalic]
  \definefontsynonym [SerifBoldSlanted][name:arialbolditalic]
  \definefontsynonym [SerifCaps]   [name:arial]
\stoptypescript

% Now we define the 'arial' font as an available option
\definetypeface [arial][rm] [serif] [arial]

% Set 'arial' 10pt as the default font for the document
\setupbodyfont [arial,rm,10pt]

\starttext

$z_1 = x_1 + y_1$

$a = b + c$

\stoptext
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