* Size of the last shipped page by Lua?
@ 2016-09-07 15:12 Procházka Lukáš Ing.
2016-09-07 19:39 ` josephcanedo
0 siblings, 1 reply; 8+ messages in thread
From: Procházka Lukáš Ing. @ 2016-09-07 15:12 UTC (permalink / raw)
To: ConTeXt
Hello,
is there a way to detect by Lua what is the size (width and height) of the last shipped page?
Especially I'm interested in the situation when page via \start/\stopTEXpage has been shipped, like:
----
\startluacode
LastPageSize = function()
-- What to come here?
return w, h
end
\stopluacode
\starttext
\startluacode
local w, h = LastPageSize()
context("w="..w .. ", h=" ..h) -- Should give "w=210mm, h=297mm" (or other units)
\stopluacode
\startTEXpage[with=10cm,height=15cm]
\stopTEXpage
\startluacode
local w, h = LastPageSize()
context("w="..w .. ", h=" ..h) -- Should give "w=100mm, h=150mm" (or other units)
\stopluacode
\stoptext
----
This would be very useful when I need to insert a page of size of the last page to move to odd page when A4 and A3 pages are mixed, to allow simple duplex printing on the printer.
So - how about 'LastPageSize()' function?
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://tex.aanhet.net
archive : http://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___________________________________________________________________________________
^ permalink raw reply [flat|nested] 8+ messages in thread* Re: Size of the last shipped page by Lua? 2016-09-07 15:12 Size of the last shipped page by Lua? Procházka Lukáš Ing. @ 2016-09-07 19:39 ` josephcanedo 2016-09-07 22:21 ` Hans Hagen 0 siblings, 1 reply; 8+ messages in thread From: josephcanedo @ 2016-09-07 19:39 UTC (permalink / raw) To: Procházka Lukáš Ing., ConTeXt [-- Attachment #1.1: Type: text/plain, Size: 314 bytes --] Hi, There are dimensions related to this : local paper_width = tex.getdimen('paperwidth') local paper_height = tex.getdimen('paperheight') There is also : tex.pageheight tex.pagewidth Not sure these are always same. Hope this helps, Regards, Joseph Canedo De : Procházka Lukáš Ing. [-- Attachment #1.2: Type: text/html, Size: 6080 bytes --] [-- Attachment #2: Type: text/plain, Size: 485 bytes --] ___________________________________________________________________________________ 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://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Size of the last shipped page by Lua? 2016-09-07 19:39 ` josephcanedo @ 2016-09-07 22:21 ` Hans Hagen 2016-09-08 19:47 ` josephcanedo 0 siblings, 1 reply; 8+ messages in thread From: Hans Hagen @ 2016-09-07 22:21 UTC (permalink / raw) To: ntg-context On 9/7/2016 9:39 PM, josephcanedo@gmail.com wrote: > There are dimensions related to this : > > local paper_width = tex.getdimen('paperwidth') > > local paper_height = tex.getdimen('paperheight') > > There is also : > > tex.pageheight > tex.pagewidth don't mess with these and don't rely on them > Not sure these are always same. Hope this helps, Hans ----------------------------------------------------------------- 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://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Size of the last shipped page by Lua? 2016-09-07 22:21 ` Hans Hagen @ 2016-09-08 19:47 ` josephcanedo 2016-09-08 20:12 ` Hans Hagen 0 siblings, 1 reply; 8+ messages in thread From: josephcanedo @ 2016-09-08 19:47 UTC (permalink / raw) To: Hans Hagen, ntg-context [-- Attachment #1.1: Type: text/plain, Size: 347 bytes --] If by messing it’s meant modifying their values, I agree that’s a bad idea 😊, the requirement is likely to read the value only (at least this is my usage of these in shipouts « after » callback). If these are not reliable, what’s the reliable way to get the page width and height ? Thanks Regards Joseph De : Hans Hagen [-- Attachment #1.2: Type: text/html, Size: 4614 bytes --] [-- Attachment #2: Type: text/plain, Size: 485 bytes --] ___________________________________________________________________________________ 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://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Size of the last shipped page by Lua? 2016-09-08 19:47 ` josephcanedo @ 2016-09-08 20:12 ` Hans Hagen 2016-09-12 6:13 ` Procházka Lukáš Ing. 2016-09-23 11:50 ` Procházka Lukáš Ing. 0 siblings, 2 replies; 8+ messages in thread From: Hans Hagen @ 2016-09-08 20:12 UTC (permalink / raw) To: josephcanedo, ntg-context On 9/8/2016 9:47 PM, josephcanedo@gmail.com wrote: > If by messing it’s meant modifying their values, I agree that’s a bad > idea 😊, the requirement is likely to read the value only (at least this > is my usage of these in shipouts « after » callback). > > If these are not reliable, what’s the reliable way to get the page width > and height ? \starttext \ctxlua{context(number.topoints(tex.dimen.paperwidth))} \ctxlua{context(number.topoints(tex.dimen.paperheight))} \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 ----------------------------------------------------------------- ___________________________________________________________________________________ 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://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Size of the last shipped page by Lua? 2016-09-08 20:12 ` Hans Hagen @ 2016-09-12 6:13 ` Procházka Lukáš Ing. 2016-09-23 11:50 ` Procházka Lukáš Ing. 1 sibling, 0 replies; 8+ messages in thread From: Procházka Lukáš Ing. @ 2016-09-12 6:13 UTC (permalink / raw) To: mailing list for ConTeXt users Helo, thanks both for proposals - I really need just to READ the values (and not to modify them). Best regards, Lukas On Thu, 08 Sep 2016 22:12:49 +0200, Hans Hagen <pragma@wxs.nl> wrote: > On 9/8/2016 9:47 PM, josephcanedo@gmail.com wrote: >> If by messing it’s meant modifying their values, I agree that’s a bad >> idea 😊, the requirement is likely to read the value only (at least this >> is my usage of these in shipouts « after » callback). >> >> If these are not reliable, what’s the reliable way to get the page width >> and height ? > > \starttext > > \ctxlua{context(number.topoints(tex.dimen.paperwidth))} > > \ctxlua{context(number.topoints(tex.dimen.paperheight))} > > \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 > ----------------------------------------------------------------- > ___________________________________________________________________________________ > 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://tex.aanhet.net > archive : http://foundry.supelec.fr/projects/contextrev/ > wiki : http://contextgarden.net > ___________________________________________________________________________________ -- 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://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Size of the last shipped page by Lua? 2016-09-08 20:12 ` Hans Hagen 2016-09-12 6:13 ` Procházka Lukáš Ing. @ 2016-09-23 11:50 ` Procházka Lukáš Ing. 2016-09-23 13:00 ` Hans Hagen 1 sibling, 1 reply; 8+ messages in thread From: Procházka Lukáš Ing. @ 2016-09-23 11:50 UTC (permalink / raw) To: mailing list for ConTeXt users [-- Attachment #1: Type: text/plain, Size: 2768 bytes --] Hello, still a problem - consider the following code: ---- \ifx\startpapersize\undefined \unprotect \def\startpapersize{\page\pushmacro\page_paper_restore\setuppapersize} \protect \fi \ifx\stoppapersize\undefined \unprotect \def\stoppapersize{\page\popmacro\page_paper_restore\setuppapersize} \protect \fi % \startluacode local tomm = function(v) return v * (210 / 39158276) end pgsz = function() context("w=%.1f, h=%.1f", tomm(tex.dimen.paperwidth), tomm(tex.dimen.paperheight)) end \stopluacode % \starttext A \ctxlua{pgsz()} \startpapersize[A3,landscape] B \ctxlua{pgsz()} \stoppapersize \startTEXpage[width=200mm,height=100mm] C % 3rd page \ctxlua{pgsz()} \stopTEXpage \stoptext ---- In the case of 3rd page (with text "C"), page size "w=210.0, h=297.0" is printed instead of "w=200.0, h=100.0". So how to access values 200 and 100 mm for the page produced by \startTEXpage[width=...,height=...]? Best regards, Lukas On Thu, 08 Sep 2016 22:12:49 +0200, Hans Hagen <pragma@wxs.nl> wrote: > On 9/8/2016 9:47 PM, josephcanedo@gmail.com wrote: >> If by messing it’s meant modifying their values, I agree that’s a bad >> idea 😊, the requirement is likely to read the value only (at least this >> is my usage of these in shipouts « after » callback). >> >> If these are not reliable, what’s the reliable way to get the page width >> and height ? > > \starttext > > \ctxlua{context(number.topoints(tex.dimen.paperwidth))} > > \ctxlua{context(number.topoints(tex.dimen.paperheight))} > > \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 > ----------------------------------------------------------------- > ___________________________________________________________________________________ > 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://tex.aanhet.net > archive : http://foundry.supelec.fr/projects/contextrev/ > wiki : http://contextgarden.net > ___________________________________________________________________________________ -- 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 [-- Attachment #2: PgSz.mkiv --] [-- Type: application/octet-stream, Size: 713 bytes --] \ifx\startpapersize\undefined \unprotect \def\startpapersize{\page\pushmacro\page_paper_restore\setuppapersize} \protect \fi \ifx\stoppapersize\undefined \unprotect \def\stoppapersize{\page\popmacro\page_paper_restore\setuppapersize} \protect \fi % \startluacode local tomm = function(v) return v * (210 / 39158276) end pgsz = function() context("w=%.1f, h=%.1f", tomm(tex.dimen.paperwidth), tomm(tex.dimen.paperheight)) end \stopluacode % \starttext A \ctxlua{pgsz()} \startpapersize[A3,landscape] B \ctxlua{pgsz()} \stoppapersize \startTEXpage[width=200mm,height=100mm] C \ctxlua{pgsz()} \stopTEXpage \stoptext [-- Attachment #3: PgSz.pdf --] [-- Type: application/pdf, Size: 6383 bytes --] [-- Attachment #4: Type: text/plain, Size: 485 bytes --] ___________________________________________________________________________________ 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://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Size of the last shipped page by Lua? 2016-09-23 11:50 ` Procházka Lukáš Ing. @ 2016-09-23 13:00 ` Hans Hagen 0 siblings, 0 replies; 8+ messages in thread From: Hans Hagen @ 2016-09-23 13:00 UTC (permalink / raw) To: ntg-context On 9/23/2016 1:50 PM, Procházka Lukáš Ing. wrote: > Hello, > > still a problem - consider the following code: > > ---- > \ifx\startpapersize\undefined > \unprotect > \def\startpapersize{\page\pushmacro\page_paper_restore\setuppapersize} > \protect > \fi > > \ifx\stoppapersize\undefined > \unprotect > \def\stoppapersize{\page\popmacro\page_paper_restore\setuppapersize} > \protect > \fi > > % > > \startluacode > local tomm = function(v) return v * (210 / 39158276) end > > pgsz = function() > context("w=%.1f, h=%.1f", tomm(tex.dimen.paperwidth), > tomm(tex.dimen.paperheight)) > end > \stopluacode > > % > > \starttext > A > \ctxlua{pgsz()} > > \startpapersize[A3,landscape] > B > \ctxlua{pgsz()} > \stoppapersize > > \startTEXpage[width=200mm,height=100mm] > C % 3rd page > \ctxlua{pgsz()} > \stopTEXpage the papersize of a TEXpage is known when that page is flushed and when you ask for it the way you do now tex is still constructing the box it's all a matter of timing \starttext \appendtoks \ctxlua{ print( number.topoints(tex.dimen.paperwidth ), number.topoints(tex.dimen.paperheight) ) }% \to \everyshipout \setuppapersize[A4] test \startTEXpage test \stopTEXpage \setuppapersize[A3] test \stoptext > \stoptext > ---- > > In the case of 3rd page (with text "C"), page size "w=210.0, h=297.0" is > printed instead of "w=200.0, h=100.0". > > So how to access values 200 and 100 mm for the page produced by > \startTEXpage[width=...,height=...]? > > Best regards, > > Lukas > > > On Thu, 08 Sep 2016 22:12:49 +0200, Hans Hagen <pragma@wxs.nl> wrote: > >> On 9/8/2016 9:47 PM, josephcanedo@gmail.com wrote: >>> If by messing it’s meant modifying their values, I agree that’s a bad >>> idea 😊, the requirement is likely to read the value only (at least this >>> is my usage of these in shipouts « after » callback). >>> >>> If these are not reliable, what’s the reliable way to get the page width >>> and height ? >> >> \starttext >> >> \ctxlua{context(number.topoints(tex.dimen.paperwidth))} >> >> \ctxlua{context(number.topoints(tex.dimen.paperheight))} >> >> \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 >> ----------------------------------------------------------------- >> ___________________________________________________________________________________ >> >> 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://tex.aanhet.net >> archive : http://foundry.supelec.fr/projects/contextrev/ >> wiki : http://contextgarden.net >> ___________________________________________________________________________________ >> > > > > > ___________________________________________________________________________________ > 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://tex.aanhet.net > archive : http://foundry.supelec.fr/projects/contextrev/ > wiki : http://contextgarden.net > ___________________________________________________________________________________ > -- ----------------------------------------------------------------- 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://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2016-09-23 13:00 UTC | newest] Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2016-09-07 15:12 Size of the last shipped page by Lua? Procházka Lukáš Ing. 2016-09-07 19:39 ` josephcanedo 2016-09-07 22:21 ` Hans Hagen 2016-09-08 19:47 ` josephcanedo 2016-09-08 20:12 ` Hans Hagen 2016-09-12 6:13 ` Procházka Lukáš Ing. 2016-09-23 11:50 ` Procházka Lukáš Ing. 2016-09-23 13:00 ` Hans Hagen
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