[NTG-context] How can I use a variable for a MetaPost coordinate ?

[peter.hopcroft--- via ntg-context]

Hello list,

I want to draw lines on a page. I want to pass my line coordinates as a percent 
of \width or \textheight, rather than as millimetres. So that if I change the 
page size I don't need to change the coordinates. 

The MWE below compiles but the pdf does not have any lines drawn on it. 

Is there a way of doing calculations on the coordinates for the draw using 
ConTexT variables like \textheight?

Thank you,
Peter Hopcroft

--

\starttext
Some text

\startMPcode
pickup pensquare scaled 1pt;
draw (0mm,0mm)--(0mm,\textheight) withcolor red 
\stopMPcode

More text

\startMPcode
pickup pensquare scaled 1pt;
draw (0mm,0mm)--(0mm,50mm) scaled \numexpr\textheight/50mm\relax
\stopMPcode

\stoptext


--

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[NTG-context] Re: Attempting to Generate PDF/A in LMTX

[jinho . king]

Thank you for your response. I did not rename any profiles; I simply followed 
the instructions on https://wiki.contextgarden.net/PDF/A 

Would you be able to share a MWE that correctly generates a PDF/A without 
errors?
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[NTG-context] Problems with line numbered program listings

[Bruce Horrocks]

I'm trying to typeset some program listings with annotations alongside. I've 
tried both columns and tabulate but both have (different) issues:

1) Plain \typefile won't allow the line numbers to be in the text - they stay 
in the margin whch I don't want.

2) \typefile using a \definedtyping name does work and works in \columns as 
well. This is great until my listing is too long to fit on a page and then I'd 
rather have the column continue onto the next page but \columns balances of 
course.

3) \tabulate allows a single cell to continue down over the page exactly as I'd 
like, but the line numbers disappear altogether. (And it has to be a single 
cell because the program listings are in source files that I want to include 
using \typefile rather than re-enter to avoid typos.)

You can see each of these effects with the following MWE which first needs a 
file called "three_lines.txt" to be created in the local directory containing 
the lines:
one
two
three

 begin
\setuplinenumbering[location=text,style=\small\tt]
\starttext

Location=text not working in main body
\typefile[numbering=line]{three_lines.txt}

But it does work if a custom typing environment is created.
\definetyping[MyTyping][style=\tt]
\typefile[MyTyping][numbering=line]{three_lines.txt}

Still works if used in a column
\startcolumns
 \typefile[MyTyping][numbering=line]{three_lines.txt}
\column
 :-)
\stopcolumns
\blank

But doesn't work if used in tabulate
\starttabulate[|p|p|]
\NC
 \typefile[MyTyping][numbering=line]{three_lines.txt}
\NC
  No line numbers at all :-(
\NR
\stoptabulate

\stoptext
 end

What I'd most like is for tabulate to allow \typefile with line numbers if at 
all possible.
—
Bruce Horrocks
Hampshire, UK


zz.pdf
Description: Adobe PDF document
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[NTG-context] Re: Attempting to Generate PDF/A in LMTX

[Henning Hraban Ramm]

Am 04.10.23 um 07:45 schrieb Jin-Ho King:
Following the instructions on https://wiki.contextgarden.net/PDF/A 
, I am receiving errors that the 
*.icc files cannot be located. I have saved the *.icc files in 
~/context-osx-arm64/tex/texmf-context/colors/icc/profiles per the 
instructions. Here's an excerpt from the log:


backend > profiles > profile specification 'default_cmyk.icc' 
loaded from 
'/Users/jinho/context-osx-arm64/tex/texmf-context/colors/icc/context/colorprofiles.xml'
backend > profiles > error, couldn't locate profile 
'default_cmyk.icc'
backend > profiles > no default profile 'default_cmyk.icc' for 
colorspace 'cmyk'
backend > profiles > profile specification 'default_rgb.icc' 
loaded from 
'/Users/jinho/context-osx-arm64/tex/texmf-context/colors/icc/context/colorprofiles.xml'
backend > profiles > error, couldn't locate profile 
'default_rgb.icc'
backend > profiles > no default profile 'default_rgb.icc' for 
colorspace 'rgb'
backend > profiles > profile specification 'default_gray.icc' 
loaded from 
'/Users/jinho/context-osx-arm64/tex/texmf-context/colors/icc/context/colorprofiles.xml'
backend > profiles > error, couldn't locate profile 
'default_gray.icc'
backend > profiles > no default profile 'default_gray.icc' for 
colorspace 'gray'
backend > profiles > profile specification 'ISO coated v2 300% 
(ECI)' loaded from 
'/Users/jinho/context-osx-arm64/tex/texmf-context/colors/icc/context/colorprofiles.xml'
backend > profiles > error, couldn't locate profile 
'ISOcoated_v2_300_eci.icc'
backend > profiles > invalid output intent 'ISO Coated v2 300% 
(ECI)'


Here is a MWE that generates these errors:

setupinteraction
   [title=TITLE,
    subtitle=SUBTITLE,
    author=AUTHOR,
    keyword={{KEYWORD1, KEYWORD2}, KEYWORD3}]

%% For PDF/A
\setupbackend[
format={pdf/a-1b:2005}, % or pdf/a-1a:2005
profile={default_cmyk.icc,default_rgb.icc,default_gray.icc},
intent=ISO coated v2 300\letterpercent\space (ECI)]


Usually, there are no profiles with names like default_*.icc; use the 
names of your actual profiles. Or did you rename them?


Hraban
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[NTG-context] Re: bibliography questions

[Henning Hraban Ramm]

Am 03.10.23 um 23:08 schrieb Aditya Mahajan:

On Tue, 3 Oct 2023, Henning Hraban Ramm wrote:


For my ConTeXt book, I thought it would make sense, and I would jump through
some hoops just to use the system, but
– most sources that I want to list are never quoted (method=dataset)
– I would need to define my own rendering, e.g. don’t like the handling of
names
– I need additional fields (custom rendering again)
– if I refer to sources, I want a URL or file path in a footnote (custom cite 
wrapper macro)


When I have to write your own rendering, I find it more convenient to use 
XML/JSON (or even a lua table) as a starting format.


I don’t understand how a custom rendering relates to the input database?

My bib database is already complete, and I find the format much more 
comfortable to write than XML.


Hraban
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