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From: Jethro Djan via ntg-context <ntg-context@ntg.nl>
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Subject: Re: Clipping multiple PDFs
Date: Tue, 23 Aug 2022 17:12:15 +0000
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Hello,

Thanks to Pablo and Aditya for the solutions. Sometimes it is very
difficult to find the right manuals and info for what you want to achieve
for those of us new to ConTeXt. I found the stuff on
context(context.noffigurepages) here (
https://wiki.contextgarden.net/Image_Placement) and I didn=E2=80=99t know t=
he
manual you linked to existed. I have also been searching for stuff about
=E2=80=9Clow-level=E2=80=9D stuff in ConTexT like the \doloopoverlist comma=
nd.

I hope to contribute to the online wiki as I become a better user of
ConTeXt.

On Tue, Aug 23, 2022 at 3:58 PM Pablo Rodriguez via ntg-context <
ntg-context@ntg.nl> wrote:

> On 8/22/22 17:46, Jethro Djan via ntg-context wrote:
> > Thanks for the solution Pablo. It works well.
>
> Glad to read it worked for you, Jethro.
>
> > I wanted to add more pdfs (which also has many pages) and found it
> > was easier for me to reason in the lua side of things. This is what I
> > have at the moment:
>
> I think this might be what you intend:
>
>   \setuplayout[page]
>   \starttext
>   \doloopoverlist{ass1,ass2,ass3,ass4,ass5,ass6,ass7,ass8}
>     {\def\Doc{\recursestring.pdf}
>      \getfiguredimensions[\Doc]
>      \dorecurse{\noffigurepages}
>      {\externalfigure[\Doc]
>        [page=3D\recurselevel, width=3D20cm, scale=3D950]}}
>   \stoptext
>
> > I didn=E2=80=99t know how to get an array (or indexed table or whatever=
 you
> > call it) in ConTeXt/Tex.
>
> \doloopoverlist & \recursestring are your friends here.
>
> > My problem is now with context(context.noffigurepages). Am I calling
> > it wrong? All I want to do is call \noffigurepages from the lua side.
> > Is there something I am missing?
>
> The approach is totally different: "getnofpages"
> (
> http://www.pragma-ade.com/general/manuals/luametatex.pdf#search=3Dgetnofp=
ages
> ).
>
> BTW, your code crashed my session, CPU goes to 100% and RAM usage too. I
> wonder how your sample could be compiled fine by your system.
>
> I hope it helps,
>
> Pablo
>
> _________________________________________________________________________=
__________
> If your question is of interest to others as well, please add an entry to
> the Wiki!
>
> maillist : ntg-context@ntg.nl /
> https://www.ntg.nl/mailman/listinfo/ntg-context
> webpage  : https://www.pragma-ade.nl / http://context.aanhet.net
> archive  : https://bitbucket.org/phg/context-mirror/commits/
> wiki     : https://contextgarden.net
>
> _________________________________________________________________________=
__________
>

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<div dir=3D"ltr">Hello,<div><br></div><div>Thanks to Pablo and Aditya for t=
he solutions. Sometimes it is very difficult to find the right manuals and =
info for what you want to achieve for those of us new to ConTeXt. I found t=
he stuff on context(context.noffigurepages) here (<a href=3D"https://wiki.c=
ontextgarden.net/Image_Placement">https://wiki.contextgarden.net/Image_Plac=
ement</a>) and I didn=E2=80=99t know the manual you linked to existed. I ha=
ve also been searching for stuff about =E2=80=9Clow-level=E2=80=9D stuff in=
 ConTexT like the \doloopoverlist command.<br></div><div><br></div><div>I h=
ope to contribute to the online wiki as I become a better user of ConTeXt.<=
br></div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gma=
il_attr">On Tue, Aug 23, 2022 at 3:58 PM Pablo Rodriguez via ntg-context &l=
t;<a href=3D"mailto:ntg-context@ntg.nl">ntg-context@ntg.nl</a>&gt; wrote:<b=
r></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex=
;border-left:1px solid rgb(204,204,204);padding-left:1ex">On 8/22/22 17:46,=
 Jethro Djan via ntg-context wrote:<br>
&gt; Thanks for the solution Pablo. It works well.<br>
<br>
Glad to read it worked for you, Jethro.<br>
<br>
&gt; I wanted to add more pdfs (which also has many pages) and found it<br>
&gt; was easier for me to reason in the lua side of things. This is what I<=
br>
&gt; have at the moment:<br>
<br>
I think this might be what you intend:<br>
<br>
=C2=A0 \setuplayout[page]<br>
=C2=A0 \starttext<br>
=C2=A0 \doloopoverlist{ass1,ass2,ass3,ass4,ass5,ass6,ass7,ass8}<br>
=C2=A0 =C2=A0 {\def\Doc{\recursestring.pdf}<br>
=C2=A0 =C2=A0 =C2=A0\getfiguredimensions[\Doc]<br>
=C2=A0 =C2=A0 =C2=A0\dorecurse{\noffigurepages}<br>
=C2=A0 =C2=A0 =C2=A0{\externalfigure[\Doc]<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0[page=3D\recurselevel, width=3D20cm, scale=3D950=
]}}<br>
=C2=A0 \stoptext<br>
<br>
&gt; I didn=E2=80=99t know how to get an array (or indexed table or whateve=
r you<br>
&gt; call it) in ConTeXt/Tex.<br>
<br>
\doloopoverlist &amp; \recursestring are your friends here.<br>
<br>
&gt; My problem is now with context(context.noffigurepages). Am I calling<b=
r>
&gt; it wrong? All I want to do is call \noffigurepages from the lua side.<=
br>
&gt; Is there something I am missing?<br>
<br>
The approach is totally different: &quot;getnofpages&quot;<br>
(<a href=3D"http://www.pragma-ade.com/general/manuals/luametatex.pdf#search=
=3Dgetnofpages" rel=3D"noreferrer" target=3D"_blank">http://www.pragma-ade.=
com/general/manuals/luametatex.pdf#search=3Dgetnofpages</a>).<br>
<br>
BTW, your code crashed my session, CPU goes to 100% and RAM usage too. I<br=
>
wonder how your sample could be compiled fine by your system.<br>
<br>
I hope it helps,<br>
<br>
Pablo<br>
___________________________________________________________________________=
________<br>
If your question is of interest to others as well, please add an entry to t=
he Wiki!<br>
<br>
maillist : <a href=3D"mailto:ntg-context@ntg.nl" target=3D"_blank">ntg-cont=
ext@ntg.nl</a> / <a href=3D"https://www.ntg.nl/mailman/listinfo/ntg-context=
" rel=3D"noreferrer" target=3D"_blank">https://www.ntg.nl/mailman/listinfo/=
ntg-context</a><br>
webpage=C2=A0 : <a href=3D"https://www.pragma-ade.nl" rel=3D"noreferrer" ta=
rget=3D"_blank">https://www.pragma-ade.nl</a> / <a href=3D"http://context.a=
anhet.net" rel=3D"noreferrer" target=3D"_blank">http://context.aanhet.net</=
a><br>
archive=C2=A0 : <a href=3D"https://bitbucket.org/phg/context-mirror/commits=
/" rel=3D"noreferrer" target=3D"_blank">https://bitbucket.org/phg/context-m=
irror/commits/</a><br>
wiki=C2=A0 =C2=A0 =C2=A0: <a href=3D"https://contextgarden.net" rel=3D"nore=
ferrer" target=3D"_blank">https://contextgarden.net</a><br>
___________________________________________________________________________=
________<br>
</blockquote></div>

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