On 3/9/2015 10:00 PM, Harald Koenig wrote:
Hello ConTeXt users!
since I'm new to this list (and the group of context users;) a quick
introduction
to myself and my current project:
I've been using LaTeX since 1986 -- some of you may know me from some TeX
meetings
(and recently also the context users's meetings -- without really using context
so far).
in 2009 using LaTeX I typeset a 100 page diary+pictures book about a group tour
from our parish to Israel and Jordan. making text flowing around the picutres
with LaTeX (in the way I'd like to typeset it) was a real nightmare with LaTeX.
so after finishing that project with LaTeX due to severe time constraints,
I've used that text to convert it to context and learn a bit how this book
can be typeset (much better?) using context -- mostly whenever I met Hans
at every tex conference I could et hands on him, and also Willi and other
helpers!
but the "context-way" Isreal book always remained unfinished or at least
unpolished
as there was no need (and again no time) to really perfectly finish up.
now this happend again:
recently I've been traveling through India, again with a group of our parish.
and again, there was that idea to make such a nice book like for the Isreal
tour.
so this time, I'd like to use context instead of latex...
BUT, there are still quite some issues where I'll need *your* help
to make this really work and get a nice book.
I'll try to split up my questions into separate mails,
hopefully with small to minimal examples if possible
(and if you'd like to get hards on my complete ugly tex code,
plesae feel free to ask me!... ;-)
Hi Harald,
% In most of our projects we need to do some kind of conversion and
% for that we use some built-in trickery. You can define a converter
% like this:
\startluacode
figures.converters.jpg = figures.converters.jpg or { }
figures.converters.jpg["lowresjpg.pdf"] =
function(oldname,newname,resolution)
figures.programs.run (
[[gm]],
[[convert -geometry %resolution%x%resolution% -compress
JPEG "%oldname%" "%newname%"]],
{
oldname = oldname,
newname = newname,
resolution = resolution,
}
)
end
\stopluacode
% This will downsample and make a pdf which loads faster. As we
% want to use some resolution we specify that here. When a graphic
% is updated or when the resolution changes the process is done
% automatically. You can delete m_k_v_i* files if you want to
% clean up.
\setupexternalfigures
[order={pdf,jpg},
resolution=100, % experiment with a value
method=auto]
% In case it doesn't work this shows some log:
% \enabletrackers[graphics.*]
% Then, in the source you can do this the following.
\starttext
\externalfigure[france-2015.jpg][height=10cm]
\externalfigure[france-2015.jpg][height=10cm,conversion=lowresjpg.pdf]
\stoptext
I'm sure you can figure out the right 'gm' parameters. In grph-inc.lua
you can see some predefined converters, e.g. we use:
\enabledirectives[graphics.conversion.eps.cleanup.ai]
\enabledirectives[graphics.extracheck]
\setupexternalfigures
[order={pdf,eps,png,jpg},
conversion=cmyk.pdf,
method=auto]
(which btw assumes some color profiles to be present but these are in
the latest minimals)
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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