Re: [NTG-context] degrade module
On Mon, 18 Feb 2019 23:50:24 +0100 Peter Münster wrote: > On Mon, Feb 18 2019, Alan Braslau wrote: > > > Incorrect, an image file contains width and height (in pixels) as well as a > > resolution, > > Optionally a resolution in the metadata. Then, of course, you have a > "natural size". But that doesn't matter, if you want other dimensions. For example, in Context \externalfigure [myfigure] should give this natural size. Of course, you can always specify other dimensions, in which case it gets scaled. Since what counts for our use in Context is usually fixing a particular size, i.e. [width=\textwidth], the "resolution", i.e. density in pixels is something that we want to control. So if we want to print to 300 dpi, for example, and we have a text width of 17cm, say, then we would like to have an image that is some 2000 pixels in width. One can normalize one's collection of images however one wishes, but manipulating them on the fly as one changes layout or image placement hardly seems efficient, even if one were to be clever in storing copies and looking at time stamps. A little bit of forethought might be better, and more predictable. Alan ___ 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 ___
Re: [NTG-context] degrade module
On Mon, Feb 18 2019, Alan Braslau wrote: > Incorrect, an image file contains width and height (in pixels) as well as a > resolution, Optionally a resolution in the metadata. Then, of course, you have a "natural size". But that doesn't matter, if you want other dimensions. -- Peter ___ 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 ___
Re: [NTG-context] markdown module vs pandoc
On Mon, 18 Feb 2019 18:47:49 +0100 Gour wrote: > > I use TikZ when I need some ready-made stuff with possibly some fancy > > shading patterns (or when I would pass the images to LaTeX users). In > > those cases you might be able to achive the same in a lot less lines > > of code, but you usually constantly need the user manual at hand, and > > doing something low level is more tricky. ConTeXt support might be > > occasionally broken. > > Thank you. It seems that metaPost/Fun is a way to go... MetaPost is native to luatex (MPlib is integrated). TikZ was designed for latex, although it has always made a great effort to remain open to context. Nevertheless, it does calculations in TeX, hardly ideal. Furthermore, MP solves (linear) equations which is very, very useful in creating drawings. If MetaPost is "missing" any higher-level functionality, it is only because macros and packages have not been written for it, or distributed, for many exist. Sure, TikZ can provide lots more eye candy, pfluff I believe is what Tufte calls it. Alan ___ 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 ___
Re: [NTG-context] Define color with calculations
On 19/02/19 10:33 AM, Wolfgang Schuster wrote:
> Mohammad Hossein Bateni schrieb am 18.02.19 um 04:37:
>> Hi,
>>
>> When I use definecolor, (how) can I use computations in setting the
>> value of a component? Something like the following...
>>
>> \definecolor[mycolor][r=0.5*0.7]
>
> \starttext
>
> \colored[r=\cldcontext{0.5*0.7}]{\cldcontext{0.5*0.7}}
>
> \colored[r=\cldcontext{"\letterpercent
> .3f",0.5*0.7}]{\cldcontext{"\letterpercent .3f",0.5*0.7}}
>
> \stoptext
>
Better use \luaexpr. From the manual:
The \luaexpr command can also better deal with for instance conditions,
where it returns true or false , while \cldcontext would interpret the
boolean value as a special signal.
Although I think my solution is superior because you can just type
\eval{1.0*sin(pi)}
instead of
\eval{1.0*math.sin(math.pi)}
> Wolfgang
>
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Re: [NTG-context] Define color with calculations
Mohammad Hossein Bateni schrieb am 18.02.19 um 04:37:
Hi,
When I use definecolor, (how) can I use computations in setting the
value of a component? Something like the following...
\definecolor[mycolor][r=0.5*0.7]
\starttext
\colored[r=\cldcontext{0.5*0.7}]{\cldcontext{0.5*0.7}}
\colored[r=\cldcontext{"\letterpercent
.3f",0.5*0.7}]{\cldcontext{"\letterpercent .3f",0.5*0.7}}
\stoptext
Wolfgang
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Re: [NTG-context] degrade module
On Mon, 18 Feb 2019 22:09:32 +0100 Peter Münster wrote: > On Mon, Feb 18 2019, Alan Braslau wrote: > > > My working solution is to put figures in subdirectories by resolution, > > The purpose of the downsample module is something else: a well defined > resolution of the image in the PDF-file. A bitmap image does not have a > resolution, only a width and a height in pixels. The resolution gets > defined, when you specify the real dimensions. > Incorrect, an image file contains width and height (in pixels) as well as a resolution, and the combination gives real dimensions (for a natural size). A proper scan of a real object specifies all of this. Alan ___ 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 ___
Re: [NTG-context] degrade module
On Mon, Feb 18 2019, Alan Braslau wrote: > My working solution is to put figures in subdirectories by resolution, The purpose of the downsample module is something else: a well defined resolution of the image in the PDF-file. A bitmap image does not have a resolution, only a width and a height in pixels. The resolution gets defined, when you specify the real dimensions. -- Peter ___ 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 ___
Re: [NTG-context] markdown module vs pandoc
On Sun, 17 Feb 2019, Gour wrote: On Fri, 15 Feb 2019 12:34:33 -0500 (EST) Aditya Mahajan wrote: For simple documents, I use something like this (untested): It does not work - maybe I have to install stand-alone version of ConTeXt, but I got an idea. Try this: https://github.com/adityam/filter/wiki/pandoc Aditya ___ 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 ___
Re: [NTG-context] markdown module vs pandoc
On Mon, 18 Feb 2019 17:40:44 +0100 Mojca Miklavec wrote: > If I was you, I would use AsciiDoc, convert it to DocBook and process > the XML. (There is some simple proof-of-concept docbook processing > already written.) Uff, even when considering to just use AsciiDoc, I was always trying to stay away from DocBook. :-) Do you personally use that? > Markdown is super ambiguous, with lots of different flavours, and > often resorting to HTML for the lack of more expressive syntax. I'm aware of that and that was the reason why in the past I was exploring reST/AsciiDoc, but then I thƣnk that maybe I can use markdown just for simpler/shorter content when publishing on web sites via static-site-generator and for the rest (study notes, slide presentations, alreger texts and/or books) to simply write directly in ConTeXt markup? > There is relatively little syntax you need to learn to achive nearly > anything, This is something what I like - simplicity is always a virtue. > I use TikZ when I need some ready-made stuff with possibly some fancy > shading patterns (or when I would pass the images to LaTeX users). In > those cases you might be able to achive the same in a lot less lines > of code, but you usually constantly need the user manual at hand, and > doing something low level is more tricky. ConTeXt support might be > occasionally broken. Thank you. It seems that metaPost/Fun is a way to go... Sincerely, Gour -- As a lamp in a windless place does not waver, so the transcendentalist, whose mind is controlled, remains always steady in his meditation on the transcendent self. ___ 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 ___
Re: [NTG-context] markdown module vs pandoc
On Mon, 18 Feb 2019 17:08:44 +0100 Pablo Rodriguez wrote: > I convert Markdown to XHTML and then I compile the XML sources with > ConTeXt. > > I describe the method at http://www.from-pandoc-to-context.tk/. > > Just in case it might help, Thank you, I'll explore that option... Sincerely, Gour -- Therefore, without being attached to the fruits of activities, one should act as a matter of duty, for by working without attachment one attains the Supreme. ___ 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 ___
Re: [NTG-context] Define color with calculations
Thanks, Henri! Works like a charm.
On Sun, Feb 17, 2019 at 11:03 PM Henri Menke wrote:
> Use Lua.
>
>
> \def\eval#1{\ctxlua{%
> local context = context
> local _ENV = math
> context(#1)
> }}
>
> \definecolor[mycolor][r=\eval{0.5*0.7}]
>
> \starttext
>
> \color[mycolor]{Hello!}
>
> \stoptext
>
>
>
> On 18/02/19 4:37 PM, Mohammad Hossein Bateni wrote:
> > Hi,
> >
> > When I use definecolor, (how) can I use computations in setting the value
> > of a component? Something like the following...
> >
> > \definecolor[mycolor][r=0.5*0.7]
> >
> > Thanks,
> > ~MHB
> >
> >
> >
> ___
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> to the Wiki!
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> >
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> >
>
>
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Re: [NTG-context] markdown module vs pandoc
On Thu, 14 Feb 2019 at 23:01, Gour wrote: > > I'm interested for using markdown markup and typeset such documents via > ConTeXt, but wonder whether it is recommended to use Markdown module or do > markdown --> ConTeXt via Pandoc? If I was you, I would use AsciiDoc, convert it to DocBook and process the XML. (There is some simple proof-of-concept docbook processing already written.) Markdown is super ambiguous, with lots of different flavours, and often resorting to HTML for the lack of more expressive syntax. > btw, for illustrating > ConText documents and/or slide-presentation, do you recommend learning > MetaPost/MetaFun over .eg. TikZ if one wants to focus on single > (probably my learning plate is already quite full to go into something > else considering the need to learn ConTeXt itself) package? I use both. MetaPost/Fun is really cool when you need a lot of control of what you want to do, the more calculations you need, the better. There is relatively little syntax you need to learn to achive nearly anything, but you mostly need to do stuff from scratch (if you reuse that code, it gives you a lot of power). I use TikZ when I need some ready-made stuff with possibly some fancy shading patterns (or when I would pass the images to LaTeX users). In those cases you might be able to achive the same in a lot less lines of code, but you usually constantly need the user manual at hand, and doing something low level is more tricky. ConTeXt support might be occasionally broken. Mojca ___ 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 ___
Re: [NTG-context] interactive tests with AcroJS
On 2/12/19 10:58 AM, Hans Hagen wrote: > On 2/11/2019 8:16 PM, Pablo Rodriguez wrote: >> Dear list, >> >> is there any way that I can generate PDF document with ConTeXt >> containing a test with questions and multiple-choice answers and that >> the user can check the right and wrong answers (using AcroJS)? >> [...] > > i think i have demo code somewhere for that but i haven't played with > these javascript driven features for a while (only acrobat anyway) Many thanks for your reply, Hans. It would be great to have that code to start experimenting with it. Many thanks for your help, Pablo -- http://www.ousia.tk ___ 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 ___
Re: [NTG-context] markdown module vs pandoc
On 2/14/19 11:00 PM, Gour wrote: > Hello, > > I'm interested for using markdown markup and typeset such documents via > ConTeXt, but wonder whether it is recommended to use Markdown module or do > markdown --> ConTeXt via Pandoc? Hi Gour, I convert Markdown to XHTML and then I compile the XML sources with ConTeXt. I describe the method at http://www.from-pandoc-to-context.tk/. Just in case it might help, Pablo -- http://www.ousia.tk ___ 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 ___
Re: [NTG-context] degrade module
On Mon, 18 Feb 2019 10:13:20 +0100
Marco Patzer wrote:
> Yes. I didn't put much thought into it and assumed there is a better
> solution.
My working solution is to put figures in subdirectories by resolution,
that is externally, once and for all, using whatever is your favorite tool
to "degrade" pixel resolution to whatever value one desires, then setting
global macro (\FigRes) to this subdirectory name.
So, for example,
\def\FigRes{300/}
...
\externalfigure [\FigRes MyFigureName]
I do this as I have *very* high resolution images as my source
(also high resolution "depth", i.e. 16 bit) and it makes no sense
to include these as is in my documents.
It's very robust.
Alan
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Re: [NTG-context] Macro for a header does not work as well
Hi Fabrice,
Do you mean the fact that the date is not in the usual French format? In that
case you should add
\mainlanguage[fr]
to the beginning of your file.
Best regards: OK
> On 18 Feb 2019, at 12:04, Fabrice Couvreur
> wrote:
>
> Hi,
> Aditya offered me this macro some time ago for my header. I updated context
> standalone, and the display of the date I want to do the evaluation
> (different from the current date) is no longer the same.
> Thank you.
> Fabrice
>
> \setupbackgrounds
>[header]
>[text]
>[frame=off,
> topframe=off,
> bottomframe=on,
> framecolor=,
> rulethickness=1pt]
>
> \defineframed
>[headerframed]
>[frame=off,
> height=fit,
> width=fit]
>
> \startsetups [headertext]
>
> \setupheadertexts
>[{
> \startframed [headerframed] [foregroundstyle=bold]
> \getvariable{headertext}{title}
> n\high{o}\,\getvariable{headertext}{number}
> \stopframed
>}]
>
> \setupheadertexts
> [{
> \startframed [headerframed] [align=flushleft,foregroundstyle=\ssx]
> \getvariable{headertext}{location}\\
> \getvariable{headertext}{time}
> \stopframed
> }]
> [{
> \startframed [headerframed] [align=flushright,foregroundstyle=\ssx]
>Lycée LA SALLE\\
>
> \date[d=\getvariable{headertext}{day},m=\getvariable{headertext}{month},y=\getvariable{headertext}{year}]
> \stopframed
> }]
>
> \stopsetups
>
>
> \setvariable{headertext}{set}{\directsetup{headertext}}
> \setvariables
> [headertext]
> [title={Devoir surveillé de Mathématiques},
>number={4},
>day={27},
>month={02},
>year={2019},
>location={T\high{\tfxx ale}~ES},
>time={3 heures}]
>
> \starttext
> \input knuth
> \stoptext
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Re: [NTG-context] Frame with Color
On Mon, 18 Feb 2019 12:26:45 +
Ursula Hermann wrote:
> \framed
> [background=color,backgroundcolor=red,
>foreground=color,foregroundcolor=white
foreground=color,foregroundcolor=white,
> frame=off]
> {\bf Wichtig}
Marco
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[NTG-context] Frame with Color
High list!
Maybe someone can help me. I tried:
\setuppapersize[A5]
\setupcolors[state=start]
\framed
[background=color,backgroundcolor=red,
foreground=color,foregroundcolor=white
frame=off]
{\bf Wichtig}
What I wanted, is a frame with background= red8 and a white text: Wichtig
Many regards
Uschi
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[NTG-context] Macro for a header does not work as well
Hi,
Aditya offered me this macro some time ago for my header. I updated context
standalone, and the display of the date I want to do the evaluation
(different from the current date) is no longer the same.
Thank you.
Fabrice
\setupbackgrounds
[header]
[text]
[frame=off,
topframe=off,
bottomframe=on,
framecolor=,
rulethickness=1pt]
\defineframed
[headerframed]
[frame=off,
height=fit,
width=fit]
\startsetups [headertext]
\setupheadertexts
[{
\startframed [headerframed] [foregroundstyle=bold]
\getvariable{headertext}{title}
n\high{o}\,\getvariable{headertext}{number}
\stopframed
}]
\setupheadertexts
[{
\startframed [headerframed] [align=flushleft,foregroundstyle=\ssx]
\getvariable{headertext}{location}\\
\getvariable{headertext}{time}
\stopframed
}]
[{
\startframed [headerframed]
[align=flushright,foregroundstyle=\ssx]
Lycée LA SALLE\\
\date[d=\getvariable{headertext}{day},m=\getvariable{headertext}{month},y=\getvariable{headertext}{year}]
\stopframed
}]
\stopsetups
\setvariable{headertext}{set}{\directsetup{headertext}}
\setvariables
[headertext]
[title={Devoir surveillé de Mathématiques},
number={4},
day={27},
month={02},
year={2019},
location={T\high{\tfxx ale}~ES},
time={3 heures}]
\starttext
\input knuth
\stoptext
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Re: [NTG-context] degrade module
On Mon, Feb 18 2019, Marco Patzer wrote: > assumed there is a better solution. I guess, that Hans will tell us, if there is. And in the meantime, it can be distributed IMO. -- Peter ___ 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 ___
Re: [NTG-context] degrade module
On Sun, 17 Feb 2019 12:14:14 +0100 Peter Münster wrote: > On Fri, Feb 15 2019, Marco Patzer wrote: > > > - It's 99% Peter's code, he's the maintainer of the module and > > probably he should just fix his code. > > Done. > > > > - My modification contains an ugly hack that just renames all files > > to pdf, regardless of the actual file type because I have no clue > > how to do that properly. > > I've included your hack, because I don't have any better idea... ok > > That code shouldn't make it into the distribution. > > Why not? Just because of the hack? Yes. I didn't put much thought into it and assumed there is a better solution. Marco ___ 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 ___
