* \externalfigure locator
@ 2017-03-20 8:26 Procházka Lukáš Ing.
[not found] ` <58cf940a.a2acdf0a.443e3.7546@mx.google.com>
0 siblings, 1 reply; 4+ messages in thread
From: Procházka Lukáš Ing. @ 2017-03-20 8:26 UTC (permalink / raw)
To: ConTeXt
Hello,
is there a Lua version of external figure locator used by \externalfigure?
Suppose having:
----
\setupexternalfigures[location={default,local,global},directory={../../Pics}]
\externalfigure[mill] % Finds e.g. in d:\Ctx-Beta\tex\texmf-context\tex\context\sample\common\mill.png
\externalfigure[MyPrettyPicture.jpg] % Finds e.g. in c:\Lukas\Pics\MyPrettyPicture.jpg
----
And I need a function like:
----
\startluacode
local path
path = assert(ExternalFileLocator("mill") == "d:/Ctx-Beta/tex/texmf-context/tex/context/sample/common/mill.png")
path = assert(ExternalFileLocator("MyPrettyPicture.jpg") == "c:/Lukas/Pics/MyPrettyPicture.jpg")
\stopluacode
----
So what to use in place of "ExternalFileLocator()"?
TIA.
Best regards,
Lukas
--
Ing. Lukáš Procházka | mailto:LPr@pontex.cz
Pontex s. r. o. | mailto:pontex@pontex.cz | http://www.pontex.cz | IDDS:nrpt3sn
Bezová 1658
147 14 Praha 4
Tel: +420 241 096 751 (+420 720 951 172)
Fax: +420 244 461 038
___________________________________________________________________________________
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___________________________________________________________________________________
^ permalink raw reply [flat|nested] 4+ messages in thread[parent not found: <58cf940a.a2acdf0a.443e3.7546@mx.google.com>]
* Re: \externalfigure locator [not found] ` <58cf940a.a2acdf0a.443e3.7546@mx.google.com> @ 2017-03-21 7:50 ` Procházka Lukáš Ing. 2017-03-22 8:30 ` Procházka Lukáš Ing. 0 siblings, 1 reply; 4+ messages in thread From: Procházka Lukáš Ing. @ 2017-03-21 7:50 UTC (permalink / raw) To: josephcanedo; +Cc: ConTeXt Hello Joseph, thank you for reaction. I guess: - "figures.path' is a ConTeXt variable, is it? - There are more extensions possible, not only .pdf. So how to access other extensions Ctx is to manage? - I guess that 'lpdf.epdf.load(figure_file)' is just a .pdf loader - how to load other pics (like .png, .jpg, .svg...)? Best regards, Lukas On Mon, 20 Mar 2017 09:34:19 +0100, <josephcanedo@gmail.com> wrote: > Hi, > > Personally I use the lua variable named : figures.path > > It’s a lua table which contains directories names you provide in directory= in \setupexternalfigures: > > for _, path in ipairs(figures.paths) do > local figure_file = path .. '/' .. file > local doc = lpdf.epdf.load(figure_file) -- assume pdf (just an example) > if doc then > …. > end > done > > There are perhaps helper functions as well. > > Joseph > > De : Procházka Lukáš Ing. > Envoyé le :lundi 20 mars 2017 09:27 > À : ConTeXt > Objet :[NTG-context] \externalfigure locator > > Hello, > > is there a Lua version of external figure locator used by \externalfigure? > > Suppose having: > > ---- > \setupexternalfigures[location={default,local,global},directory={../../Pics}] > \externalfigure[mill] % Finds e.g. in d:\Ctx-Beta\tex\texmf-context\tex\context\sample\common\mill.png > \externalfigure[MyPrettyPicture.jpg] % Finds e.g. in c:\Lukas\Pics\MyPrettyPicture.jpg > ---- > > And I need a function like: > > ---- > \startluacode > local path > > path = assert(ExternalFileLocator("mill") == "d:/Ctx-Beta/tex/texmf-context/tex/context/sample/common/mill.png") > path = assert(ExternalFileLocator("MyPrettyPicture.jpg") == "c:/Lukas/Pics/MyPrettyPicture.jpg") > \stopluacode > ---- > > So what to use in place of "ExternalFileLocator()"? > > TIA. > > Best regards, > > Lukas > > -- Ing. Lukáš Procházka | mailto:LPr@pontex.cz Pontex s. r. o. | mailto:pontex@pontex.cz | http://www.pontex.cz | IDDS:nrpt3sn Bezová 1658 147 14 Praha 4 Tel: +420 241 096 751 (+420 720 951 172) Fax: +420 244 461 038 ___________________________________________________________________________________ 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 ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: \externalfigure locator 2017-03-21 7:50 ` Procházka Lukáš Ing. @ 2017-03-22 8:30 ` Procházka Lukáš Ing. 2017-03-22 10:55 ` Hans Hagen 0 siblings, 1 reply; 4+ messages in thread From: Procházka Lukáš Ing. @ 2017-03-22 8:30 UTC (permalink / raw) To: ConTeXt Hello, a bit surprisingly no response so far. Does it mean that no such a function exists? If so, are there any Lua tables which provide list of current searching paths and list of image extensions which ConTeXt handles? (In both cases: in the place of use, as e.g. list of paths may change during use of \(setup)externalfigure(s) at various places in the source document.) Joseph mentioned 'figures.path' for paths; is there something similar for valid image extensions (like figures.extensions')? If not, would it be possible to provide something like this? - Just to explain: I need to perform some ops before inserting an image via \externalfigure. And I would need to be able to locate the file to be inserted, even when the picture is inserted by just a file name (with no path) with path specified before by \setupexternalfigures. Best regards, Lukas On Tue, 21 Mar 2017 08:50:18 +0100, Procházka Lukáš Ing. <LPr@pontex.cz> wrote: > Hello Joseph, > > thank you for reaction. > > I guess: > > - "figures.path' is a ConTeXt variable, is it? > - There are more extensions possible, not only .pdf. So how to access other extensions Ctx is to manage? > - I guess that 'lpdf.epdf.load(figure_file)' is just a .pdf loader - how to load other pics (like .png, .jpg, .svg...)? > > Best regards, > > Lukas > > > On Mon, 20 Mar 2017 09:34:19 +0100, <josephcanedo@gmail.com> wrote: > >> Hi, >> >> Personally I use the lua variable named : figures.path >> >> It’s a lua table which contains directories names you provide in directory= in \setupexternalfigures: >> >> for _, path in ipairs(figures.paths) do >> local figure_file = path .. '/' .. file >> local doc = lpdf.epdf.load(figure_file) -- assume pdf (just an example) >> if doc then >> …. >> end >> done >> >> There are perhaps helper functions as well. >> >> Joseph >> >> De : Procházka Lukáš Ing. >> Envoyé le :lundi 20 mars 2017 09:27 >> À : ConTeXt >> Objet :[NTG-context] \externalfigure locator >> >> Hello, >> >> is there a Lua version of external figure locator used by \externalfigure? >> >> Suppose having: >> >> ---- >> \setupexternalfigures[location={default,local,global},directory={../../Pics}] >> \externalfigure[mill] % Finds e.g. in d:\Ctx-Beta\tex\texmf-context\tex\context\sample\common\mill.png >> \externalfigure[MyPrettyPicture.jpg] % Finds e.g. in c:\Lukas\Pics\MyPrettyPicture.jpg >> ---- >> >> And I need a function like: >> >> ---- >> \startluacode >> local path >> >> path = assert(ExternalFileLocator("mill") == "d:/Ctx-Beta/tex/texmf-context/tex/context/sample/common/mill.png") >> path = assert(ExternalFileLocator("MyPrettyPicture.jpg") == "c:/Lukas/Pics/MyPrettyPicture.jpg") >> \stopluacode >> ---- >> >> So what to use in place of "ExternalFileLocator()"? >> >> TIA. >> >> Best regards, >> >> Lukas >> >> > > -- Ing. Lukáš Procházka | mailto:LPr@pontex.cz Pontex s. r. o. | mailto:pontex@pontex.cz | http://www.pontex.cz | IDDS:nrpt3sn Bezová 1658 147 14 Praha 4 Tel: +420 241 096 751 (+420 720 951 172) Fax: +420 244 461 038 ___________________________________________________________________________________ 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 ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: \externalfigure locator 2017-03-22 8:30 ` Procházka Lukáš Ing. @ 2017-03-22 10:55 ` Hans Hagen 0 siblings, 0 replies; 4+ messages in thread From: Hans Hagen @ 2017-03-22 10:55 UTC (permalink / raw) To: ntg-context On 3/22/2017 9:30 AM, Procházka Lukáš Ing. wrote: > Hello, > > a bit surprisingly no response so far. > > Does it mean that no such a function exists? > > If so, are there any Lua tables which provide list of current searching > paths and list of image extensions which ConTeXt handles? (In both > cases: in the place of use, as e.g. list of paths may change during use > of \(setup)externalfigure(s) at various places in the source document.) > > Joseph mentioned 'figures.path' for paths; > is there something similar for valid image extensions (like > figures.extensions')? > > If not, would it be possible to provide something like this? > > - Just to explain: I need to perform some ops before inserting an image > via \externalfigure. And I would need to be able to locate the file to > be inserted, even when the picture is inserted by just a file name (with > no path) with path specified before by \setupexternalfigures. manipulation plugins have been available for quite a while, just look into grph-con.lua for examples (the test suite has some converter examples too) Hans > Best regards, > > Lukas > > > On Tue, 21 Mar 2017 08:50:18 +0100, Procházka Lukáš Ing. <LPr@pontex.cz> > wrote: > >> Hello Joseph, >> >> thank you for reaction. >> >> I guess: >> >> - "figures.path' is a ConTeXt variable, is it? >> - There are more extensions possible, not only .pdf. So how to access >> other extensions Ctx is to manage? >> - I guess that 'lpdf.epdf.load(figure_file)' is just a .pdf loader - >> how to load other pics (like .png, .jpg, .svg...)? >> >> Best regards, >> >> Lukas >> >> >> On Mon, 20 Mar 2017 09:34:19 +0100, <josephcanedo@gmail.com> wrote: >> >>> Hi, >>> >>> Personally I use the lua variable named : figures.path >>> >>> It’s a lua table which contains directories names you provide in >>> directory= in \setupexternalfigures: >>> >>> for _, path in ipairs(figures.paths) do >>> local figure_file = path .. '/' .. file >>> local doc = lpdf.epdf.load(figure_file) -- assume pdf (just an >>> example) >>> if doc then >>> …. >>> end >>> done >>> >>> There are perhaps helper functions as well. >>> >>> Joseph >>> >>> De : Procházka Lukáš Ing. >>> Envoyé le :lundi 20 mars 2017 09:27 >>> À : ConTeXt >>> Objet :[NTG-context] \externalfigure locator >>> >>> Hello, >>> >>> is there a Lua version of external figure locator used by >>> \externalfigure? >>> >>> Suppose having: >>> >>> ---- >>> \setupexternalfigures[location={default,local,global},directory={../../Pics}] >>> >>> \externalfigure[mill] % Finds e.g. in >>> d:\Ctx-Beta\tex\texmf-context\tex\context\sample\common\mill.png >>> \externalfigure[MyPrettyPicture.jpg] % Finds e.g. in >>> c:\Lukas\Pics\MyPrettyPicture.jpg >>> ---- >>> >>> And I need a function like: >>> >>> ---- >>> \startluacode >>> local path >>> >>> path = assert(ExternalFileLocator("mill") == >>> "d:/Ctx-Beta/tex/texmf-context/tex/context/sample/common/mill.png") >>> path = assert(ExternalFileLocator("MyPrettyPicture.jpg") == >>> "c:/Lukas/Pics/MyPrettyPicture.jpg") >>> \stopluacode >>> ---- >>> >>> So what to use in place of "ExternalFileLocator()"? >>> >>> TIA. >>> >>> Best regards, >>> >>> Lukas >>> >>> >> >> > > -- ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl ----------------------------------------------------------------- ___________________________________________________________________________________ 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 ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 4+ messages in thread
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2017-03-20 8:26 \externalfigure locator Procházka Lukáš Ing.
[not found] ` <58cf940a.a2acdf0a.443e3.7546@mx.google.com>
2017-03-21 7:50 ` Procházka Lukáš Ing.
2017-03-22 8:30 ` Procházka Lukáš Ing.
2017-03-22 10:55 ` Hans Hagen
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