Strange pagebreaks in LMTX

Strange pagebreaks in LMTX

[Otared Kavian]

Hi all,

I have a document which typesets correctly in mkiv giving a PDF file with 7 pages, but the same document typeset with lmtx gives two pages with a strange pagebreak on the second page. Up to now, unfortunately, I could not create a minimal example to show this behaviour, so I put the files in the folder here:

	https://www.dropbox.com/sh/7rolmpe47njvy0l/AADmcILO0XgY3Sb6FC2dwMw-a?dl=0

and the PDF file obtained with mkiv is here
	
	https://www.dropbox.com/s/udbz0lulat9vum7/bug-pagebreaks-mkiv.pdf?dl=0

while the one obtained with lmtx is here
	
	https://www.dropbox.com/s/t6kge5lq8otju4y/bug-pagebreaks-lmtx.pdf?dl=0

Also, the TeX file typesets correctly with lmtx, if I don't use textrules, so  I wonder whether there has been some changes in the way such textrules have to be used.
As far as I can remember, two months ago the same file was typeset with lmtx without any problem.

Thanks in advance for any help,
Best regards: OK


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Re: Strange pagebreaks in LMTX

[Hans Hagen]

On 9/4/2019 2:24 PM, Otared Kavian wrote:
> Hi all,
> 
> I have a document which typesets correctly in mkiv giving a PDF file with 7 pages, but the same document typeset with lmtx gives two pages with a strange pagebreak on the second page. Up to now, unfortunately, I could not create a minimal example to show this behaviour, so I put the files in the folder here:
> 
> 	https://www.dropbox.com/sh/7rolmpe47njvy0l/AADmcILO0XgY3Sb6FC2dwMw-a?dl=0
> 
> and the PDF file obtained with mkiv is here
> 	
> 	https://www.dropbox.com/s/udbz0lulat9vum7/bug-pagebreaks-mkiv.pdf?dl=0
> 
> while the one obtained with lmtx is here
> 	
> 	https://www.dropbox.com/s/t6kge5lq8otju4y/bug-pagebreaks-lmtx.pdf?dl=0
> 
> Also, the TeX file typesets correctly with lmtx, if I don't use textrules, so  I wonder whether there has been some changes in the way such textrules have to be used.
> As far as I can remember, two months ago the same file was typeset with lmtx without any problem.
> 
> Thanks in advance for any help,
> Best regards: OK
you have some interaction between textrules and backgrounds (and that 
can be a matter of very small differences in dimensions and rounding and 
such .. i just don't see a quick way out) ... esp these backgrounds are 
an old mechanism (maybe i should alias it to textbackgrounds in lmtx)

much better is to use this:

\definetextbackground
   [xx]
   [location=paragraph]

\starttextbackground[xx]
\stoptextbackground

can you try to use that instead? less page overflow too

(actually i should iontegrate some title line in that)

Hans


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Re: Strange pagebreaks in LMTX

[Wolfgang Schuster]

Hans Hagen schrieb am 04.09.2019 um 17:58:
> On 9/4/2019 2:24 PM, Otared Kavian wrote:
>> Hi all,
>>
>> I have a document which typesets correctly in mkiv giving a PDF file 
>> with 7 pages, but the same document typeset with lmtx gives two pages 
>> with a strange pagebreak on the second page. Up to now, 
>> unfortunately, I could not create a minimal example to show this 
>> behaviour, so I put the files in the folder here:
>>
>>     https://www.dropbox.com/sh/7rolmpe47njvy0l/AADmcILO0XgY3Sb6FC2dwMw-a?dl=0 
>>
>>
>> and the PDF file obtained with mkiv is here
>>
>>     https://www.dropbox.com/s/udbz0lulat9vum7/bug-pagebreaks-mkiv.pdf?dl=0 
>>
>>
>> while the one obtained with lmtx is here
>>
>>     https://www.dropbox.com/s/t6kge5lq8otju4y/bug-pagebreaks-lmtx.pdf?dl=0 
>>
>>
>> Also, the TeX file typesets correctly with lmtx, if I don't use 
>> textrules, so  I wonder whether there has been some changes in the 
>> way such textrules have to be used.
>> As far as I can remember, two months ago the same file was typeset 
>> with lmtx without any problem.
>>
>> Thanks in advance for any help,
>> Best regards: OK
> you have some interaction between textrules and backgrounds (and that 
> can be a matter of very small differences in dimensions and rounding 
> and such .. i just don't see a quick way out) ... esp these 
> backgrounds are an old mechanism (maybe i should alias it to 
> textbackgrounds in lmtx)
>
> much better is to use this:
>
> \definetextbackground
>   [xx]
>   [location=paragraph]
>
> \starttextbackground[xx]
> \stoptextbackground
>
> can you try to use that instead? less page overflow too
>
> (actually i should iontegrate some title line in that)
A limitation of textbackgrounds is the limited control over the vertical 
space at page breaks.

With the old background mechanism you get the normal topoffset and 
bottomoffset values
but with textbackgrounds you can just control the space at the end and 
end of the environment.

\showframe[text][text]

\starttext

\dorecurse{3}{\samplefile{knuth}}

\startbackground[topoffset=1em,bottomoffset=1em]
\dorecurse{2}{\samplefile{knuth}}
\stopbackground

\dorecurse{2}{\samplefile{knuth}}

\page

\definetextbackground[xx][location=paragraph,frame=off,background=color,backgroundcolor=gray,topoffset=1em,bottomoffset=1em]

\dorecurse{3}{\samplefile{knuth}}

\starttextbackground[xx]
\dorecurse{2}{\samplefile{knuth}}
\stoptextbackground

\dorecurse{2}{\samplefile{knuth}}

\stoptext

Wolfgang

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Re: Strange pagebreaks in LMTX

[Otared Kavian]

Hi Wolfgang,

Thanks for your answer. I tried Hans' suggestion to use \textbackground instead of background: indeed it solves the problem of incorrect page breaks, but it seems that \setuptextbackground « leftframe=on » is not honoured, that is one cannot say for instance:

	\setuptextbackground[frame=off,leftframe=on]

while using \background this would be possible. 
The other issue, as you pointed out is the way the end of \textbackground can be controlled (even though for my case it is not an issue). 

The \sidebar mechanism in order to have a vertical line on the left of each exercise does not work properly neither, because it is difficult to control precisely where it ends.

Best regards: OK


> On 4 Sep 2019, at 18:32, Wolfgang Schuster <wolfgang.schuster.lists@gmail.com> wrote:
> 
> Hans Hagen schrieb am 04.09.2019 um 17:58:
>> On 9/4/2019 2:24 PM, Otared Kavian wrote:
>>> Hi all,
>>> 
>>> I have a document which typesets correctly in mkiv giving a PDF file with 7 pages, but the same document typeset with lmtx gives two pages with a strange pagebreak on the second page. Up to now, unfortunately, I could not create a minimal example to show this behaviour, so I put the files in the folder here:
>>> 
>>>     https://www.dropbox.com/sh/7rolmpe47njvy0l/AADmcILO0XgY3Sb6FC2dwMw-a?dl=0 
>>> 
>>> and the PDF file obtained with mkiv is here
>>> 
>>>     https://www.dropbox.com/s/udbz0lulat9vum7/bug-pagebreaks-mkiv.pdf?dl=0 
>>> 
>>> while the one obtained with lmtx is here
>>> 
>>>     https://www.dropbox.com/s/t6kge5lq8otju4y/bug-pagebreaks-lmtx.pdf?dl=0 
>>> 
>>> Also, the TeX file typesets correctly with lmtx, if I don't use textrules, so  I wonder whether there has been some changes in the way such textrules have to be used.
>>> As far as I can remember, two months ago the same file was typeset with lmtx without any problem.
>>> 
>>> Thanks in advance for any help,
>>> Best regards: OK
>> you have some interaction between textrules and backgrounds (and that can be a matter of very small differences in dimensions and rounding and such .. i just don't see a quick way out) ... esp these backgrounds are an old mechanism (maybe i should alias it to textbackgrounds in lmtx)
>> 
>> much better is to use this:
>> 
>> \definetextbackground
>>   [xx]
>>   [location=paragraph]
>> 
>> \starttextbackground[xx]
>> \stoptextbackground
>> 
>> can you try to use that instead? less page overflow too
>> 
>> (actually i should iontegrate some title line in that)
> A limitation of textbackgrounds is the limited control over the vertical space at page breaks.
> 
> With the old background mechanism you get the normal topoffset and bottomoffset values
> but with textbackgrounds you can just control the space at the end and end of the environment.
> 
> \showframe[text][text]
> 
> \starttext
> 
> \dorecurse{3}{\samplefile{knuth}}
> 
> \startbackground[topoffset=1em,bottomoffset=1em]
> \dorecurse{2}{\samplefile{knuth}}
> \stopbackground
> 
> \dorecurse{2}{\samplefile{knuth}}
> 
> \page
> 
> \definetextbackground[xx][location=paragraph,frame=off,background=color,backgroundcolor=gray,topoffset=1em,bottomoffset=1em]
> 
> \dorecurse{3}{\samplefile{knuth}}
> 
> \starttextbackground[xx]
> \dorecurse{2}{\samplefile{knuth}}
> \stoptextbackground
> 
> \dorecurse{2}{\samplefile{knuth}}
> 
> \stoptext
> 
> Wolfgang
> 

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Re: Strange pagebreaks in LMTX

[Aditya Mahajan]

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On Thu, 5 Sep 2019, Otared Kavian wrote:

> Hi Wolfgang,
>
> Thanks for your answer. I tried Hans' suggestion to use \textbackground instead of background: indeed it solves the problem of incorrect page breaks, but it seems that \setuptextbackground « leftframe=on » is not honoured, that is one cannot say for instance:
>
> 	\setuptextbackground[frame=off,leftframe=on]
>
> while using \background this would be possible.

See

https://adityam.github.io/context-blog/post/frame-with-solid-left-line-redux/

Aditya

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Re: Strange pagebreaks in LMTX

[Otared Kavian]

Hi Aditya,

Thank you for your reply and for the link to your article: your explanations are cristal clear and the solution for me is to use what you explain.

There is only one issue remaining, when using your code, that is:

\definetextbackground
  [leftbartext]
  [
    location=paragraph,
    mp=mpos:region:leftbar,
    width=broad,
    frame=off,
    framecolor=darkred,
    rulethickness=.5pt,
    leftoffset=2ex,
%    rightoffset=2.25ex,
%    topoffset=2.25ex,
%    bottomoffset=2.25ex,
    background=color,
    backgroundcolor=white,
  ]

\startuseMPgraphic{mpos:region:leftbar}
  draw_multi_pars;
  draw_multi_side;
\stopuseMPgraphic

then when there is a footnote the leftbartext runs into the footnote, between the number and the footnote itself, and the result is not nice. I did not find a way to push the footnote and its number a little to the right, or the leftbartext to the left.

Best regards: OK

> On 5 Sep 2019, at 06:45, Aditya Mahajan <adityam@umich.edu> wrote:
> 
> On Thu, 5 Sep 2019, Otared Kavian wrote:
> 
>> Hi Wolfgang,
>> 
>> Thanks for your answer. I tried Hans' suggestion to use \textbackground instead of background: indeed it solves the problem of incorrect page breaks, but it seems that \setuptextbackground « leftframe=on » is not honoured, that is one cannot say for instance:
>> 
>> 	\setuptextbackground[frame=off,leftframe=on]
>> 
>> while using \background this would be possible.
> 
> See
> 
> https://adityam.github.io/context-blog/post/frame-with-solid-left-line-redux/
> 
> Aditya___________________________________________________________________________________
> 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
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> ___________________________________________________________________________________

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Re: Strange pagebreaks in LMTX

[Duncan Hothersall]

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I have found in similar situations sometimes the easiest fix is to set the
backgroundcolor of footnotes to white (or your page colour if different).

Bests,

DH

On Thu, 5 Sep 2019 at 07:00, Otared Kavian <otared@gmail.com> wrote:

> Hi Aditya,
>
> Thank you for your reply and for the link to your article: your
> explanations are cristal clear and the solution for me is to use what you
> explain.
>
> There is only one issue remaining, when using your code, that is:
>
> \definetextbackground
>   [leftbartext]
>   [
>     location=paragraph,
>     mp=mpos:region:leftbar,
>     width=broad,
>     frame=off,
>     framecolor=darkred,
>     rulethickness=.5pt,
>     leftoffset=2ex,
> %    rightoffset=2.25ex,
> %    topoffset=2.25ex,
> %    bottomoffset=2.25ex,
>     background=color,
>     backgroundcolor=white,
>   ]
>
> \startuseMPgraphic{mpos:region:leftbar}
>   draw_multi_pars;
>   draw_multi_side;
> \stopuseMPgraphic
>
> then when there is a footnote the leftbartext runs into the footnote,
> between the number and the footnote itself, and the result is not nice. I
> did not find a way to push the footnote and its number a little to the
> right, or the leftbartext to the left.
>
> Best regards: OK
>
> > On 5 Sep 2019, at 06:45, Aditya Mahajan <adityam@umich.edu> wrote:
> >
> > On Thu, 5 Sep 2019, Otared Kavian wrote:
> >
> >> Hi Wolfgang,
> >>
> >> Thanks for your answer. I tried Hans' suggestion to use \textbackground
> instead of background: indeed it solves the problem of incorrect page
> breaks, but it seems that \setuptextbackground « leftframe=on » is not
> honoured, that is one cannot say for instance:
> >>
> >>      \setuptextbackground[frame=off,leftframe=on]
> >>
> >> while using \background this would be possible.
> >
> > See
> >
> >
> https://adityam.github.io/context-blog/post/frame-with-solid-left-line-redux/
> >
> >
> Aditya___________________________________________________________________________________
> > 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
> >
> ___________________________________________________________________________________
>
>
> ___________________________________________________________________________________
> 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
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> wiki     : http://contextgarden.net
>
> ___________________________________________________________________________________
>


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___________________________________________________________________________________

Re: Strange pagebreaks in LMTX

[Aditya Mahajan]

On Thu, 5 Sep 2019, Otared Kavian wrote:

> Hi Aditya,
>
> Thank you for your reply and for the link to your article: your explanations are cristal clear and the solution for me is to use what you explain.
>
> There is only one issue remaining, when using your code, that is:
>
> \definetextbackground
>  [leftbartext]
>  [
>    location=paragraph,
>    mp=mpos:region:leftbar,
>    width=broad,
>    frame=off,
>    framecolor=darkred,
>    rulethickness=.5pt,
>    leftoffset=2ex,
> %    rightoffset=2.25ex,
> %    topoffset=2.25ex,
> %    bottomoffset=2.25ex,
>    background=color,
>    backgroundcolor=white,
>  ]
>
> \startuseMPgraphic{mpos:region:leftbar}
>  draw_multi_pars;
>  draw_multi_side;
> \stopuseMPgraphic
>
> then when there is a footnote the leftbartext runs into the footnote, 
> between the number and the footnote itself, and the result is not nice. 
> I did not find a way to push the footnote and its number a little to the 
> right, or the leftbartext to the left.

You can move the leftbartex to the left by using `frameoffset=dimension` 
key.

Aditya
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Re: Strange pagebreaks in LMTX

[Otared Kavian]

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> On 5 Sep 2019, at 09:32, Aditya Mahajan <adityam@umich.edu> wrote:
>> […]
> 
> You can move the leftbartex to the left by using `frameoffset=dimension` key.
> 
> Aditya

Thanks! That solves the issue.

Best regards: OK

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