[NTG-context] Metafun scaling problem

Lutz Haseloff lutz.haseloff at toppkieker.info
Tue Oct 2 08:19:14 CEST 2018

On Windows, I got it working again with current Context (20180404) and current luatex from win32tex
(1.07 development ID 6686)

On linux-armhf I did a fresh "./first-setup.sh --engine=luatex" and got:

mtx-context     | ConTeXt Process Management 1.02
mtx-context     |
mtx-context     | main context file: /usr/local/context/tex/texmf-context/tex/context/base/mkiv/context.mkiv
mtx-context     | current version: 2018.09.30 19:32


This is LuaTeX, Version 1.09.0 (TeX Live 2019/dev)

The LuaTeX team is Hans Hagen, Hartmut Henkel, Taco Hoekwater, Luigi Scarso.

LuaTeX merges and builds upon (parts of) the code from these projects:

tex       : Donald Knuth
etex      : Peter Breitenlohner, Phil Taylor and friends
omega     : John Plaice and Yannis Haralambous
aleph     : Giuseppe Bilotta
pdftex    : Han The Thanh and friends
kpathsea  : Karl Berry, Olaf Weber and others
lua       : Roberto Ierusalimschy, Waldemar Celes and Luiz Henrique de Figueiredo
metapost  : John Hobby, Taco Hoekwater, Luigi Scarso, Hans Hagen and friends
pplib     : PaweĊ‚ Jackowski
fontforge : George Williams (partial)
luajit    : Mike Pall (used in LuajitTeX)

Compiled with libpng 1.6.35; using 1.6.35
Compiled with lua version 5.3.5
Compiled with mplib version 2.00
Compiled with zlib 1.2.11; using 1.2.11

Development id: 6930

No experimental, i think.

Am 2. Oktober 2018 07:12:02 MESZ schrieb luigi scarso <luigi.scarso at gmail.com>:
>On Tue, Oct 2, 2018 at 7:03 AM Lutz Haseloff
><lutz.haseloff at toppkieker.info>
>> Hi Hans, hi all,
>> I think, that recent context has a problem with scaling included pdf
>> My minimal file:
>> \startMPpage
>> draw externalfigure "cow.pdf" ;
>> \stopMPpage
>> The resulting pdf is, as the original, 97x70.6 mm, all ok.
>> If I try to scale to the original size, i get arithmetic overflow
>> \startMPpage
>> draw externalfigure "cow.pdf" xscaled 97mm yscaled 70.6mm ;
>> \stopMPpage
>> Whe i scale it down, the pdf gets really big.
>> \startMPpage
>> draw externalfigure "cow.pdf" xscaled 27.5mm yscaled 20mm ;
>> \stopMPpage
>> results in a pdf with width of 4.938,8 mm and height of 2.612,3 mm.
>> I tested with recent context and luatex under windows 64 and
>> which context and luatex version ?  Are you using experimental ?
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