Re: degrade module

[Lutz Haseloff <lutz.haseloff@toppkieker.info>]

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Thank you all for your help.

First i tried the grph-downsample.lua script.
Unfortunately i get an error message
grph-downsample.lua:31: bad argument #2 to 'format' (number has no integer representation)
See attached log file.

Greetings Lutz

Am 14. Februar 2019 21:44:31 MEZ schrieb Hans Hagen <j.hagen@xs4all.nl>:
>On 2/14/2019 9:32 PM, Peter Münster wrote:
>> On Thu, Feb 14 2019, Lutz Haseloff wrote:
>> 
>>> I wanted to use the degrade module with recent ConTeXt and LuaTeX.
>> 
>> Hi Lutz,
>> 
>> Could you please check, if the module grph-downsample.lua could fit
>your
>> needs?
>> 
>> 
>>> The minimal example from the degrade manual gives an error.
>>> See the attached log.
>>> Is there any chance to get the module working again?
>> 
>> There is always a chance. The question is just: who will afford the
>> efforts...
>> Please check first the downsample module, and then let's see, if you
>> still need this very old and hackish degrade module.
>you can plug in code
>
>\startluacode
>
>figures.converters["png"]["lowres.png"] = 
>function(oldname,newname,resolution)
>     os.execute(string.format('gm convert "%s" "%s"',oldname,newname))
>end
>
>figures.converters["jpg"]["lowres.jpg"] = 
>function(oldname,newname,resolution)
>     os.execute(string.format('gm convert "%s" "%s"',oldname,newname))
>end
>
>-- figures.suffixes["lowres.png"] = figures.suffixes.png -- suffix is 
>automatically done
>
>\stopluacode
>\enabletrackers[graphics*]
>
>
>\starttext
>     \externalfigure[t:/sources/mill.png][conversion=lowres.png]
>     \externalfigure[t:/sources/hacker.jpg][conversion=lowres.jpg]
>\stoptext
>
>
>
>-----------------------------------------------------------------
>                                           Hans Hagen | PRAGMA ADE
>               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
>        tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
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[-- Attachment #2: verkleinert-downsample.log --]
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open source     > level 1, order 1, name '/usr/local/context/tex/texmf-context/tex/context/base/mkiv/cont-yes.mkiv'
system          > 
system          > ConTeXt  ver: 2019.02.10 17:43 MKIV beta  fmt: 2019.2.11  int: english/english
system          > 
system          > 'cont-new.mkiv' loaded
open source     > level 2, order 2, name '/usr/local/context/tex/texmf-context/tex/context/base/mkiv/cont-new.mkiv'
system          > beware: some patches loaded from cont-new.mkiv
close source    > level 2, order 2, name '/usr/local/context/tex/texmf-context/tex/context/base/mkiv/cont-new.mkiv'
system          > files > jobname 'verkleinert-downsample', input './verkleinert-downsample', result 'verkleinert-downsample'
fonts           > latin modern fonts are not preloaded
languages       > language 'en' is active
open source     > level 2, order 3, name '/sdcard/work/degrade/verkleinert-downsample.tex'
fonts           > preloading latin modern fonts (second stage)
fonts           > 'fallback modern-designsize rm 12pt' is loaded

lua error       > lua error on line 5 in file /sdcard/work/degrade/verkleinert-downsample.tex:

grph-downsample.lua:31: bad argument #2 to 'format' (number has no integer representation)

1     \loadluafile[grph-downsample]
2     \setupexternalfigures[conversion=lowres.jpg, resolution=10]
3     \starttext
4     \externalfigure[hacker.jpg][width=5cm]
5 >>  \stoptext


? x

system          > start used files

system          > text: verkleinert-downsample

system          > stop used files


system          > start used files

system          >    1: filename=char-prv.lua filetype=tex format=tex foundname=/usr/local/context/tex/texmf-context/tex/context/base/mkiv/char-prv.lua fullname=/usr/local/context/tex/texmf-context/tex/context/base/mkiv/char-prv.lua usedmethod=database
system          >    2: filename=cont-yes.mkiv filetype=tex foundname=/usr/local/context/tex/texmf-context/tex/context/base/mkiv/cont-yes.mkiv fullname=/usr/local/context/tex/texmf-context/tex/context/base/mkiv/cont-yes.mkiv usedmethod=database
system          >    3: filename=publ-imp-default.lua filetype=scripts foundname=/usr/local/context/tex/texmf-context/tex/context/base/mkiv/publ-imp-default.lua fullname=/usr/local/context/tex/texmf-context/tex/context/base/mkiv/publ-imp-default.lua usedmethod=database
system          >    4: filename=cont-new.mkiv filetype=tex foundname=/usr/local/context/tex/texmf-context/tex/context/base/mkiv/cont-new.mkiv fullname=/usr/local/context/tex/texmf-context/tex/context/base/mkiv/cont-new.mkiv usedmethod=database
system          >    5: filename=lang-exc.lua filetype=scripts foundname=/usr/local/context/tex/texmf-context/tex/context/base/mkiv/lang-exc.lua fullname=/usr/local/context/tex/texmf-context/tex/context/base/mkiv/lang-exc.lua usedmethod=database
system          >    6: filename=lang-us.lua filetype=scripts foundname=/usr/local/context/tex/texmf-context/tex/context/patterns/mkiv/lang-us.lua fullname=/usr/local/context/tex/texmf-context/tex/context/patterns/mkiv/lang-us.lua usedmethod=database
system          >    7: filename=/sdcard/work/degrade/verkleinert-downsample.tex foundname=/sdcard/work/degrade/verkleinert-downsample.tex fullname=/sdcard/work/degrade/verkleinert-downsample.tex usedmethod=direct
system          >    8: filename=lm.lfg filetype=tex foundname=/usr/local/context/tex/texmf-context/tex/context/fonts/mkiv/lm.lfg fullname=/usr/local/context/tex/texmf-context/tex/context/fonts/mkiv/lm.lfg usedmethod=database
system          >    9: filename=lmroman12-regular filetype=otf format=otf foundname=/usr/local/context/tex/texmf/fonts/opentype/public/lm/lmroman12-regular.otf fullname=/usr/local/context/tex/texmf/fonts/opentype/public/lm/lmroman12-regular.otf usedmethod=database
system          >   10: filename=latinmodern-math.otf filetype=opentypefonts foundname=/usr/local/context/tex/texmf/fonts/opentype/public/lm-math/latinmodern-math.otf fullname=/usr/local/context/tex/texmf/fonts/opentype/public/lm-math/latinmodern-math.otf usedmethod=database
system          >   11: filename=hacker.jpg format=tex foundname=hacker.jpg fullname=/sdcard/work/degrade/hacker.jpg usedmethod=direct

system          > stop used files


system          > start commandline options

system          > currentrun="1"
system          > fulljobname="./verkleinert-downsample.tex"
system          > input="./verkleinert-downsample.tex"
system          > kindofrun="1"
system          > maxnofruns="9"
system          > texmfbinpath="/usr/local/context/tex/texmf-linux-armhf/bin"

system          > stop commandline options


system          > start commandline files

system          >    1: ./verkleinert-downsample.tex

system          > stop commandline files


modules         > start used modules


modules         > stop used modules


mkiv lua stats  > used config file: selfautoparent:/texmf/web2c/texmfcnf.lua
mkiv lua stats  > used cache path: /usr/local/context/tex/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e
mkiv lua stats  > resource resolver: loadtime 0.104 seconds, 0 scans with scantime 0.000 seconds, 0 shared scans, 11 found files, scanned paths: <none>
mkiv lua stats  > stored bytecode data: 441 modules (0.922 sec), 93 tables (0.071 sec), 534 chunks (0.993 sec)
mkiv lua stats  > traced context: maxstack: 1369, freed: 0, unreachable: 1369
mkiv lua stats  > cleaned up reserved nodes: 50 nodes, 9 lists of 440
mkiv lua stats  > node memory usage: 1 hlist, 1 dir, 2 kern, 4 attribute, 61 glue_spec, 2 attribute_list, 2 temp, 1 if_stack, 2 user_defined
mkiv lua stats  > used backend: pdf (backend for directly generating pdf output)
mkiv lua stats  > jobdata time: 0.010 seconds saving, 0.001 seconds loading
mkiv lua stats  > callbacks: internal: 32, file: 146, direct: 2, late: 0, function 484, total: 664
mkiv lua stats  > result saved in file: verkleinert-downsample.pdf, compresslevel 3, objectcompresslevel 3
mkiv lua stats  > loaded patterns: en::1, load time: 0.000
mkiv lua stats  > loaded fonts: 2 files: latinmodern-math.otf, lmroman12-regular.otf
mkiv lua stats  > font engine: otf 3.107, afm 1.513, tfm 1.000, 7 instances, 5 shared in backend, 1 common vectors, 4 common hashes, load time 0.831 seconds 
mkiv lua stats  > used platform: linux, type: unix, binary subtree: texmf-linux-armhf
mkiv lua stats  > used engine: luatex version 1.093 with functionality level 7079, banner: this is luatex, version 1.09.3 (tex live 2019/dev)
mkiv lua stats  > control sequences: 45211 of 65536 + 100000
mkiv lua stats  > lua properties: engine: lua 5.3, used memory: 52 MB (ctx: 51 MB), hash type: lua, hash chars: min(64,40), symbol mask: utf (τεχ)
mkiv lua stats  > runtime: 14.576 seconds


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maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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