January 2017 - ntg-context - NTG Mailing Lists

Re: [NTG-context] Displayed formula inside paragraph change vertical space before the paragraph
by Jeong Dal 17 Jan '17

17 Jan '17

Dear Mikael, I didn’t see any problem which you mentioned when I run it under the ConTeXt version 2016.10. 6 MKIV beta. But I saw a change the vertical space when I run it under ConTeXt version 2016. 12. 28 MKIV beta after updated the bata. I tested in several ways and found that the vertical space is narrow only in the following case: Bla bla bla bla bla bla bla bla bla % \startformula k>1000\implies |1/k-0|=1/k<1/1000=0.001. \stopformula Bla bla bla bla bla bla bla bla bla If I remove either “%” or the formula, then the output looks fine. As Otaired said it is better to open a new thread. Best regards, Dalyoung > Maybe you should open a new thread with a title like « Bug in vertical spacing of paragraphs » so that Hans may see it more easily. > > Best regards: OK

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Displayed formula inside paragraph change vertical space before the paragraph
by Mikael P. Sundqvist 16 Jan '17

16 Jan '17

Dear list, please have a look at the output (ctx-example13.pdf) of the somewhat ugly example below. The vertical space before the paragraph with the displayed formula is almost none. If I remove the % signs before and after the formula, the space before the paragraph looks ok. Do I have to enter those empty lines? Is this a bug or feature? (I use a recently updated standalone) /Mikael \starttext Bla bla bla bla bla bla bla bla bla Bla bla bla bla bla bla bla bla bla Bla bla bla bla bla bla bla bla bla Bla bla bla bla bla bla bla bla bla Bla bla bla bla bla bla bla bla bla Bla bla bla bla bla bla bla bla bla Bla bla bla bla bla bla bla bla bla Bla bla bla bla bla bla bla bla bla Bla bla bla bla bla bla bla bla bla Bla bla bla bla bla bla bla bla bla Bla bla bla bla bla bla bla bla bla Bla bla bla bla bla bla bla bla bla Bla bla bla bla bla bla bla bla bla Bla bla bla bla bla bla bla bla bla Bla bla bla bla bla bla bla bla bla Bla bla bla bla bla bla bla bla bla Bla bla bla bla bla bla bla bla bla Bla bla bla bla bla bla bla bla bla Bla bla bla bla bla bla bla bla bla Bla bla bla bla bla bla bla bla bla % \startformula k>1000\implies |1/k-0|=1/k<1/1000=0.001. \stopformula % Bla bla bla bla bla bla bla bla bla Bla bla bla bla bla bla bla bla bla Bla bla bla bla bla bla bla bla bla Bla bla bla bla bla bla bla bla bla \stoptext

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scancsv module and lua
by DesdeChaves 16 Jan '17

16 Jan '17

Dear sirs, In my project I need to format some data from a csv file. The csv file is scanned using the scancsv module and part of this information is formatted inside luacode environment, but the text.print("") and the context("") functions don´t be able to send the formatted data to the output. The result is a empty pdf. The example attached is from a old question. Thanks a lot for your time Jorge M. --- example -- \usemodule[scancsv] \def\ddmmyyyy#1#2#3{% #1 - date, #2 - old separator, #3 - new separator \startlua local parsedate=thirddata.scancsv.ParseCSVLine('#1','#2'); local day=tonumber(parsedate[1]); local month=tonumber(parsedate[2]); local year=tonumber(parsedate[3]); -- tex.print(day..'#3'..month..'#3'..year); text.print("Hello"); \stoplua } \unexpanded\def\lineaction{ \Name\ arrived on \ddmmyyyy{\Date}{/}{.\\,} \\ } % Name;Date % ME;11/10/14 % You;05/02/14 % He;15/02/2014 % She;03/03/12 % It;03/03/14 \setheader \setsep{;} \setfiletoscan{mail.csv} \starttext \filelineaction \stoptext

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Re: [NTG-context] Bug: \textext inside \*MPinclusions causes error
by Sergey Slyusarev 15 Jan '17

15 Jan '17

> you can use > \startMPinitializations > \stopMPinitializations > as these are expanded each graphic run Thank you! This works fine with minimal example (in which the behaviour in question appears). But in specific context in which this problem affects me, this solution breaks many things: There are many *MPinclusions with as many MPinstances (so variables from one instance don't contaminate another). (here's that place: https://github.com/jemmybutton/byrne-euclid/blob/master/preamble.tex#L30) If this is indeed a bug and it's going to be fixed one day, I'll go with some less invasive hack to overcome it, but if this behaviour is correct, I'll try to rewrite everything accordingly. Or I got it wrong and *MPinitializations can substitute for *MPinclusions in this case? Sergey

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index(register) from an XML source
by MF 15 Jan '17

15 Jan '17

Hello list, please see this: ---------------------------------------- \startbuffer[test] <text> <div> <p>In this page there is a <name idref="id1">cat</name>, a <name idref="id2">dog</name> and a <name idref="id3">horse</name>.</p> </div> <div> <p>In this page there's only a <name idref="id2">fox terrier</name>.</p> </div> <div> <p>In this page you find a <name idref="id1">persian cat</name> and a <name idref="id3">horse</name>.</p> </div> <index> <entry id="id1" data-sort="cat">Cat</entry> <entry id="id2" data-sort="dog">Dog</entry> <entry id="id3" data-sort="horse">Horse</entry> </index> </text> \stopbuffer \defineregister[Animal][Animals] \startxmlsetups xml:mysetup \xmlsetsetup{#1}{text|div|p|name|i|index|entry}{xml:*} \stopxmlsetups \xmlregistersetup{xml:mysetup} \startxmlsetups xml:text \xmlflush{#1} \stopxmlsetups \startxmlsetups xml:div \xmlflush{#1}\page \stopxmlsetups \startxmlsetups xml:p \xmlflush{#1}\par \stopxmlsetups \startxmlsetups xml:name \Animal[\xmlfunction{#1}{sortKeyOfAnimal}]{\xmlfunction{#1}{indexEntryF orAnimal}}{\bf\xmlflush{#1}} \stopxmlsetups \startxmlsetups xml:i \dontleavehmode{\em\xmlflush{#1}} \stopxmlsetups \startxmlsetups xml:index \placeregister[Animal] \stopxmlsetups \startxmlsetups xml:entry \xmlflush{#1} \stopxmlsetups \startluacode userdata = userdata or {} userdata.animals = {} function userdata.findAnimal(t) local idref = xml.attribute(t, "", "idref") local animal = userdata.animals[idref] if not animal then local entry = xml.first(t, "ancestor::text//index/entry[@id = '" .. idref .. "']") local sortkey = xml.attribute(entry, "", "data-sort") animal = {} if sortkey and entry then animal.id = idref animal.sortkey = sortkey animal.entry = entry userdata.animals[idref] = animal end end return animal end function xml.functions.sortKeyOfAnimal(t) local animal = userdata.findAnimal(t) if animal.sortkey then context(animal.sortkey) else context("zzz") end end function xml.functions.indexEntryForAnimal(t) local animal = userdata.findAnimal(t) if animal.entry then lxml.flush(animal.entry) end end \stopluacode \starttext \xmlprocessbuffer{main}{test}{} \stoptext ---------------------------------------- It's a simplified version of the documents I'm working on: - it's XML - the index entries are already defined - the entries of the index have an "id" attribute and they are referred in the main text with an "idref" attribute - \Animal[sortkey]{entry} is used to index the terms in the text - "sortkey" and "entry" are calculated by the Lua code, that reads the idref and finds the right entry inside the <index> element (it also caches the entries) Context has no problems with that code, but the index I get (page 4) is something like this: c Cat 1 Cat 3 d Dog 1 Dog 2 h Horse 1 Horse 3 What I'd expect is instead: c Cat 1,3 d Dog 1,2 h Horse 1,3 Could you explain me why everytime I get a distinct entry in the index, even when the sort key and the entry are the same? (or I only think they are, but they are not really) Thanks in advance, Massi

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JPEG images resolution and externalfigure size
by Christoph Reller 13 Jan '17

13 Jan '17

Hi, When using the currently latest version of ConTeXt to include a JPEG image as in the MWE below, the resulting image size in the PDF is half the size when compared with earlier versions. \setupexternalfigures[location={local,global,default}] \starttext \externalfigure[hacker.jpg][scale=1000] \stoptext The actual width (in the PDF) of the hacker.jpg image is: - ConTeXt version 2016.12.28: approx. 44 mm - ConTeXt version 2016.07.01: approx. 88 mm The correct width would be 86.868 mm (513 pixel / 150 DPI * 25.4). Is there a factor 2 lost somewhere? Cheers, Christoph

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Bug: \textext inside \*MPinclusions causes error
by Sergey Slyusarev 12 Jan '17

12 Jan '17

Hi, i found the following bug (likely) some time ago: When \textext (or any other text generating thing like btex etex etc.) is present inside \*MPinclusions and \*MPinclusions are followed by \*MPcode ConTeXt returns error: Equation cannot be performed (color=vacuous). Minimal example would be: \startMPinclusions picture p; p := image( draw textext("Foo"); ); \stopMPinclusions \startMPcode \stopMPcode tested on http://live.contextgarden.net/

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Table on two pages (natural tables)
by Fabrice Couvreur 10 Jan '17

10 Jan '17

Hello, My table does not fit on the first page that contains the title of the evaluation and I would like it to continue on the second page. I tried using the key split = yes but my table moves to the second page and there is more than the title of the first. thank you, Fabrice

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'overprint' swallows leading number
by Peter Rolf 06 Jan '17

06 Jan '17

Hi, title says it all. (ConTeXt 2016.12.28 17:55) minimal example: ------------ \starttext \startluacode local bCI,eCI = context.startcolorintent, context.stopcolorintent bCI({"overprint"})context("1.2345\\crlf")eCI() -- also no 'overprint' for that text part in the PDF bCI({"overprint"})context("First number is missing.\\crlf")eCI() \stopluacode \stoptext ------------- I also get an overflow exception with one of my tables, but I could 'fix' that with '\setupalign[nothyphenated]'. The table is complex (lua generated), so no minimal example at hand. Anyhow, here the error message (space-ali.mkiv). ------------- tex error > tex error on line 13283 in file g:/mydocs/TeX/dokumente/test/lua/titanfall2/titanfall2-weapons.mkiv: ! Arithmetic overflow \setraggedness ...hsize /\dimexpr #1\relax \relax \fi \spac_align_set_horizontal_center ...dness_middle \raggedstatus \plustwo \at... \raggedcommand ...pac_align_set_horizontal_center \relax \spac_align_set_ver... \next ...th \pack_framed_do_setups \raggedcommand \pack_framed_do_top \bgrou... \tabl_ntb_cell_process_b_c ...raltablelocalframed {\tabl_ntb_cell_start #5\t... <inserted text> ...ass 1 34 \tabl_ntb_skip {6}\tabl_ntb_pass 1 40 \tabl_ntb_plus \tabl_ntb_p... ... l.249 ...x\vbox{\ctxlua{userdata.printweaponTABLE()} }% ------------- Maybe related to the prior bug (also overprinting numbers in the TABLE), will check again later. Best wishes, Peter

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rotating some pages of a pdf
by Cesar Romani 06 Jan '17

06 Jan '17

I'm using the following code, rotate.tex, to rotate all the pages of file.pdf, using: context --input=file.pdf --rotation=45 rotate.pdf rotate.tex ========== \getfiguredimensions [\getdocumentargument{input}] \starttext \dorecurse{\noffigurepages} {\startTEXpage \externalfigure [\getdocumentargument{input}] [page=\recurselevel, orientation=\getdocumentargument{rotation}] \stopTEXpage} \stoptext How could I use this code to rotate, say, the page five, 7º clockwise, and the page twenty, 15º counterclockwise? Many thanks in advance, -- Cesar

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