[NTG-context] METAPOST subpath rounding issue
I have a METAPOST algorithm that splits a path at a certain time in two, does something with both ends (not the ends where they were split) and then rejoins them. In very rare cases this crashes, because the subpath doesn’t work as expected. firstPart := subpath (0,halfWayTime) of workingConn; secondPart := subpath (halfWayTime,pathTimeLen) of workingConn; may sometimes result in something like this: metapost log> >> Path at line 0: metapost log> (273,-427)..controls (259.50,-427) and (246.013335,-427) metapost log> ..(232.520001,-427) metapost log> metapost log> >> Path at line 0: metapost log> (232.519998,-427)..controls (161.680001,-427) and (90.84000 metapost log> 03,-427) metapost log> ..(20,-427) As can be seen in these (rare) cases the two calls to subpath result in a different point resulting from both. so, when I later try to rejoin them with & it fails: metapost log> ! Paths don't touch; '&' will be changed to '..'. metapost log> Which means subpath doesn’t always exactly do what I expect it to do (and many explanations, but not the official manual) state. Again, this is rare. I’ve done this to work around it but I wondered if there was a better (reliable) solution save cutFirstPart; path cutFirstPart; cutFirstPart := firstPart maxcutbefore fromPicOutline; save cutSecondPart; path cutSecondPart; cutSecondPart := secondPart maxcutafter toPicOutline; if ((xpart point 0 of cutSecondPart) <> (xpart point infinity of cutFirstPart)) or ((ypart point 0 of cutSecondPart) <> (ypart point infinity of cutFirstPart)): resultConn := cutFirstPart--cutSecondPart; else: resultConn := cutFirstPart & cutSecondPart; fi G___ 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 ___
Re: [NTG-context] METAPOST subpath rounding issue
> On 7 May 2020, at 20:28, Gerben Wierda wrote: > > I have a METAPOST algorithm that splits a path at a certain time in two, does > something with both ends (not the ends where they were split) and then > rejoins them. > > In very rare cases this crashes, because the subpath doesn’t work as expected. > > firstPart := subpath (0,halfWayTime) of workingConn; > secondPart := subpath (halfWayTime,pathTimeLen) of workingConn; > > may sometimes result in something like this: > > metapost log> >> Path at line 0: > metapost log> (273,-427)..controls (259.50,-427) and > (246.013335,-427) > metapost log> ..(232.520001,-427) > metapost log> > metapost log> >> Path at line 0: > metapost log> (232.519998,-427)..controls > (161.680001,-427) and (90.84000 > metapost log> 03,-427) > metapost log> ..(20,-427) > > As can be seen in these (rare) cases the two calls to subpath result in a > different point resulting from both. so, when I later try to rejoin them with > & it fails: > > metapost log> ! Paths don't touch; '&' will be changed to '..'. > metapost log> > > Which means subpath doesn’t always exactly do what I expect it to do (and > many explanations, but not the official manual) state. Again, this is rare. > > I’ve done this to work around it but I wondered if there was a better > (reliable) solution > > save cutFirstPart; path cutFirstPart; cutFirstPart := firstPart > maxcutbefore fromPicOutline; > save cutSecondPart; path cutSecondPart; cutSecondPart := secondPart > maxcutafter toPicOutline; > if ((xpart point 0 of cutSecondPart) <> (xpart point infinity of > cutFirstPart)) > or ((ypart point 0 of cutSecondPart) <> (ypart point infinity of > cutFirstPart)): > resultConn := cutFirstPart--cutSecondPart; > else: > resultConn := cutFirstPart & cutSecondPart; > fi A crude test of path pb; pb:=(5.5cm,0cm)--(5.5cm,0cm)--(10.5cm,0cm); draw pb; gives no errors so why not just join using -- all the time and save the test? -- Bruce Horrocks Hampshire, UK ___ 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 ___
Re: [NTG-context] mkiv digits/units zero padding not working
Following up on the work-around, here is my improved code for xtable.
What doesn’t work is:
* alignment on the decimal separator takes place only in the first column with
decimals (i.e. B), not on the following one; this is independent of R1 having
a decimal value in this column or not
* row spanning is now tricky since the width of the header column is taken for
the first of the three rows spanned, which becomes even more complicated with
option=stretch, I guess if I right align the second column and would phantomize
the hsize of the header, this could work with a bit of optimization.
What I like about this approach however is that one could read the two
arguments from a CSV file, which would save a lot of typing (and to manually
specify the padding).
\def\mpm#1#2{
\doifsomethingelse{#2}{
\startxcell[align=left] \digits{#1} \stopxcell
\startxcell ± \stopxcell
\startxcell \digits{#2} \stopxcell
}{
\startxcell[align=left] \digits{#1} \stopxcell
\startxcell \stopxcell
\startxcell \digits{#2} \stopxcell
}
}
\startxtable[split=repeat, aligncharacter=yes, alignmentcharacter={.}]
\startxtablehead
\startxrow[topframe=on, foregroundstyle=bold]
\startxcell A \stopxcell
\startxcell[align=left, nx=3] Bla bla bla bla bla bla bla bla
\stopxcell
\startxcell C \stopxcell
\stopxrow
\stopxtablehead
\startxtablebody
\startxrow[topframe=on]
\startxcell R1 \stopxcell
\mpm{12.3}{}%{1.5}
\startxcell one \stopxcell
\stopxrow
\startxrow
\startxcell R2 \stopxcell
\mpm{0.01}{0.023}
\startxcell two \stopxcell
\stopxrow
\startxrow
\startxcell R3 \stopxcell
\mpm{2.3}{0.1}
\startxcell three\stopxcell
\stopxrow
\stopxtablebody
\stopxtable
> On 7 May 2020, at 21:22, Benjamin Buchmuller
> wrote:
>
> Hi Wolfgang,
>
> you are (of course) right again. I realised that I wouldn’t get the expected
> behaviour after checking the snippet isolated from my document’s context,
> where it is embedded in a \startplacetable[…]{}{}. I’m still learning to get
> the gist of the \doifs, the curly and square bracketed arguments and so on.
> Thanks for the hint!
>
> Seems like I’m going to make three cells and span the header column for now,
> though I guess it would be a nice feature to have the padding working in the
> other cases.
>
> I’ll write a feature request for no 4.
>
> Thanks!
>
>
>> On 7 May 2020, at 20:00, Wolfgang Schuster
>> wrote:
>>
>> Benjamin Buchmuller schrieb am 07.05.2020 um 19:41:
>>> Hi Wolfang,
>>> Thank you for your reply. I have indeed not explained my intended result
>>> very clearly.
>>> 1.
>>> Primarily, I need to get the two values aligned at the digit separator of
>>> the first and second number respectively and overall at the ± sign. I’m
>>> working in an xtable, where I have entries such as
>>> \startxcell \mpm{14.0==}{_1.5==} \stopxcell
>>> \startxcell \mpm{_0.034}{_0.013} \stopxcell
>>> and defined
>>> \def\mpm#1#2{
>>> \ifsecondargument
>>> \digits{#1}\,±\,\digits{#2}%
>>> \else
>>> \digits{#1}%
>>> \fi
>>> }
>>
>> Is there something missing in here because the \ifsecondargument check here
>> makes non sense because the second argument is mandatory and not optional.
>>
>> Is this what you want?
>>
>> \define[2]\mpm
>> {\digits{#1}%
>> \doifsomething{#2}{\,±\,\digits{#2}}}
>>
>>> Since I was hoping that I could exploit the zeropadding of \digits to get
>>> the format right. Indeed, it would save a lot of typing, if I wouldn’t have
>>> to specify the padding manually and I vaguely recall that there is
>>> somewhere a ConTeXt solution that can make such alignments, but I simply
>>> can’t find it any more …
>>
>> You can align number on the decimal point (comma) but this works only when
>> you have only one number in a cell.
>>
>> \starttext
>>
>> \startxtable[aligncharacter=yes,alignmentcharacter=±]
>> \startxrow
>> \startxcell
>> \digits {14.0} ± \digits {1.5}
>> \stopxcell
>> \stopxrow
>> \startxrow
>> \startxcell
>> \digits {0.034} ± \digits {0.013}
>> \stopxcell
>> \stopxrow
>> \stopxtable
>>
>> \stoptext
>>
>>> 2. + 3.
>>> Absolutely right, this is my bad. I have badly mixed from Hans’ solution to
>>> a similar problem,
>>> https://www.mail-archive.com/ntg-context@ntg.nl/msg00724.html
>>> which was actually \def\zeroamount{-} and the example in the source, I
>>> didn’t read properly. Just skip that part. :)
>>
>> The message is from 2003!
>>
>>> 4.
>>> Indeed,
>>> \startxcell \mpm{14.==}{_1.5=} \stopxcell
>>>
[NTG-context] mkiv \digits{2.0=} zero padding feature request
Hi,
As Wolfgang has figured out, zero padding in \digits only works for trailing
(and omitted) zeroes when immediately preceded by the decimal separator.
It would be nice if this would work even if there is a number preceding, so that
\digits{3.1=}x\crlf
\digits{3.==}x\crlf
\digits{3.14}x
would align at the decimal separator when right aligned. This is useful in some
circumstances, where the number of significant digits varies between sources,
so that one needs to typset for example
\digits{3.1=}±\digits{0.5}\crlf
\digits{3.28}±\digits{0.12}
Thanks!
Benjamin
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Re: [NTG-context] mkiv digits/units zero padding not working
Hi Wolfgang,
you are (of course) right again. I realised that I wouldn’t get the expected
behaviour after checking the snippet isolated from my document’s context, where
it is embedded in a \startplacetable[…]{}{}. I’m still learning to get the gist
of the \doifs, the curly and square bracketed arguments and so on. Thanks for
the hint!
Seems like I’m going to make three cells and span the header column for now,
though I guess it would be a nice feature to have the padding working in the
other cases.
I’ll write a feature request for no 4.
Thanks!
> On 7 May 2020, at 20:00, Wolfgang Schuster
> wrote:
>
> Benjamin Buchmuller schrieb am 07.05.2020 um 19:41:
>> Hi Wolfang,
>> Thank you for your reply. I have indeed not explained my intended result
>> very clearly.
>> 1.
>> Primarily, I need to get the two values aligned at the digit separator of
>> the first and second number respectively and overall at the ± sign. I’m
>> working in an xtable, where I have entries such as
>> \startxcell \mpm{14.0==}{_1.5==} \stopxcell
>> \startxcell \mpm{_0.034}{_0.013} \stopxcell
>> and defined
>> \def\mpm#1#2{
>> \ifsecondargument
>> \digits{#1}\,±\,\digits{#2}%
>> \else
>> \digits{#1}%
>> \fi
>> }
>
> Is there something missing in here because the \ifsecondargument check here
> makes non sense because the second argument is mandatory and not optional.
>
> Is this what you want?
>
> \define[2]\mpm
> {\digits{#1}%
> \doifsomething{#2}{\,±\,\digits{#2}}}
>
>> Since I was hoping that I could exploit the zeropadding of \digits to get
>> the format right. Indeed, it would save a lot of typing, if I wouldn’t have
>> to specify the padding manually and I vaguely recall that there is somewhere
>> a ConTeXt solution that can make such alignments, but I simply can’t find it
>> any more …
>
> You can align number on the decimal point (comma) but this works only when
> you have only one number in a cell.
>
> \starttext
>
> \startxtable[aligncharacter=yes,alignmentcharacter=±]
>\startxrow
>\startxcell
>\digits {14.0} ± \digits {1.5}
>\stopxcell
>\stopxrow
>\startxrow
>\startxcell
>\digits {0.034} ± \digits {0.013}
>\stopxcell
>\stopxrow
> \stopxtable
>
> \stoptext
>
>> 2. + 3.
>> Absolutely right, this is my bad. I have badly mixed from Hans’ solution to
>> a similar problem,
>> https://www.mail-archive.com/ntg-context@ntg.nl/msg00724.html
>> which was actually \def\zeroamount{-} and the example in the source, I
>> didn’t read properly. Just skip that part. :)
>
> The message is from 2003!
>
>> 4.
>> Indeed,
>> \startxcell \mpm{14.==}{_1.5=} \stopxcell
>> \startxcell \mpm{_0.03}{_0.01} \stopxcell
>> aligns properly. But sometimes, I have the first digit specified, but not
>> the second and unfortunately this doesn’t work
>> \startxcell \mpm{14.5=}{_1.5=} \stopxcell
>> \startxcell \mpm{_0.03}{_0.01} \stopxcell
>> because = is not immediately preceded by .
>
> Can you write another mail with a request for this.
>
> Wolfgang
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Re: [NTG-context] mkiv digits/units zero padding not working
Benjamin Buchmuller schrieb am 07.05.2020 um 19:41:
Hi Wolfang,
Thank you for your reply. I have indeed not explained my intended result very
clearly.
1.
Primarily, I need to get the two values aligned at the digit separator of the
first and second number respectively and overall at the ± sign. I’m working in
an xtable, where I have entries such as
\startxcell \mpm{14.0==}{_1.5==} \stopxcell
\startxcell \mpm{_0.034}{_0.013} \stopxcell
and defined
\def\mpm#1#2{
\ifsecondargument
\digits{#1}\,±\,\digits{#2}%
\else
\digits{#1}%
\fi
}
Is there something missing in here because the \ifsecondargument check
here makes non sense because the second argument is mandatory and not
optional.
Is this what you want?
\define[2]\mpm
{\digits{#1}%
\doifsomething{#2}{\,±\,\digits{#2}}}
Since I was hoping that I could exploit the zeropadding of \digits to get the
format right. Indeed, it would save a lot of typing, if I wouldn’t have to
specify the padding manually and I vaguely recall that there is somewhere a
ConTeXt solution that can make such alignments, but I simply can’t find it any
more …
You can align number on the decimal point (comma) but this works only
when you have only one number in a cell.
\starttext
\startxtable[aligncharacter=yes,alignmentcharacter=±]
\startxrow
\startxcell
\digits {14.0} ± \digits {1.5}
\stopxcell
\stopxrow
\startxrow
\startxcell
\digits {0.034} ± \digits {0.013}
\stopxcell
\stopxrow
\stopxtable
\stoptext
2. + 3.
Absolutely right, this is my bad. I have badly mixed from Hans’ solution to a
similar problem,
https://www.mail-archive.com/ntg-context@ntg.nl/msg00724.html
which was actually \def\zeroamount{-} and the example in the source, I didn’t
read properly. Just skip that part. :)
The message is from 2003!
4.
Indeed,
\startxcell \mpm{14.==}{_1.5=} \stopxcell
\startxcell \mpm{_0.03}{_0.01} \stopxcell
aligns properly. But sometimes, I have the first digit specified, but not the
second and unfortunately this doesn’t work
\startxcell \mpm{14.5=}{_1.5=} \stopxcell
\startxcell \mpm{_0.03}{_0.01} \stopxcell
because = is not immediately preceded by .
Can you write another mail with a request for this.
Wolfgang
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Re: [NTG-context] mkiv digits/units zero padding not working
Hi Wolfang,
Thank you for your reply. I have indeed not explained my intended result very
clearly.
1.
Primarily, I need to get the two values aligned at the digit separator of the
first and second number respectively and overall at the ± sign. I’m working in
an xtable, where I have entries such as
\startxcell \mpm{14.0==}{_1.5==} \stopxcell
\startxcell \mpm{_0.034}{_0.013} \stopxcell
and defined
\def\mpm#1#2{
\ifsecondargument
\digits{#1}\,±\,\digits{#2}%
\else
\digits{#1}%
\fi
}
Since I was hoping that I could exploit the zeropadding of \digits to get the
format right. Indeed, it would save a lot of typing, if I wouldn’t have to
specify the padding manually and I vaguely recall that there is somewhere a
ConTeXt solution that can make such alignments, but I simply can’t find it any
more …
2. + 3.
Absolutely right, this is my bad. I have badly mixed from Hans’ solution to a
similar problem,
https://www.mail-archive.com/ntg-context@ntg.nl/msg00724.html
which was actually \def\zeroamount{-} and the example in the source, I didn’t
read properly. Just skip that part. :)
4.
Indeed,
\startxcell \mpm{14.==}{_1.5=} \stopxcell
\startxcell \mpm{_0.03}{_0.01} \stopxcell
aligns properly. But sometimes, I have the first digit specified, but not the
second and unfortunately this doesn’t work
\startxcell \mpm{14.5=}{_1.5=} \stopxcell
\startxcell \mpm{_0.03}{_0.01} \stopxcell
because = is not immediately preceded by .
> On 7 May 2020, at 18:21, Wolfgang Schuster
> wrote:
>
> Benjamin Buchmuller schrieb am 07.05.2020 um 17:31:
>> Hi,
>> I’m trying to get
>> \digits{15.0=}±\digits{1.00}
>> \digits{_8.12}±\digits{0.34}
>> horizontally aligned as
>> 15.0 ±1.00
>> 8.12±0.34
>> But I get
>> 15.0±1.00
>> 8.12±0.34
>> instead.
>> From the source (phys-dim.mkiv), I can see that “=“ should expand to
>> \hphantom{0}. (I think \zeropoint in the table is outdated, since
>> \def\zeropoint\hphantom{0} does not solve the problem either.)
>
> 1. Which table?
>
> 2. This is not how \def works.
>
> 3. When you redefine \zeropoint (which isn't a macro) you're going to break
> everything.
>
>> I can’t use tabulate or alignment in math mode for this problem
>> unfortunately.
>
> I looked at the code and the problem is = can only be used to insert space
> for two digits (e.g. 100.==).
>
> Wolfgang
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Re: [NTG-context] mkiv digits/units zero padding not working
Benjamin Buchmuller schrieb am 07.05.2020 um 17:31:
Hi,
I’m trying to get
\digits{15.0=}±\digits{1.00}
\digits{_8.12}±\digits{0.34}
horizontally aligned as
15.0 ±1.00
8.12±0.34
But I get
15.0±1.00
8.12±0.34
instead.
From the source (phys-dim.mkiv), I can see that “=“ should expand to
\hphantom{0}. (I think \zeropoint in the table is outdated, since
\def\zeropoint\hphantom{0} does not solve the problem either.)
1. Which table?
2. This is not how \def works.
3. When you redefine \zeropoint (which isn't a macro) you're going to
break everything.
I can’t use tabulate or alignment in math mode for this problem unfortunately.
I looked at the code and the problem is = can only be used to insert
space for two digits (e.g. 100.==).
Wolfgang
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Re: [NTG-context] Compile only one new component in a project
Fabrice Couvreur schrieb am 07.05.2020 um 17:21: Hi Aditya, It does not work ; the compilation encounters errors with each command that I created. I guess it comes from the components. You have to load all environment files in your components. In your case where you use multiple files you can use a project file where you load all environments and load then the project file in your product and component files. ##chapter-4-seconde.tex## \startcomponent chapter-4-seconde Add here \environment ... or \project ... \startchapter[title=] ... \stopchapter \stopcomponent Wolfgang ___ 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 ___
[NTG-context] mkiv digits/units zero padding not working
Hi,
I’m trying to get
\digits{15.0=}±\digits{1.00}
\digits{_8.12}±\digits{0.34}
horizontally aligned as
15.0 ±1.00
8.12±0.34
But I get
15.0±1.00
8.12±0.34
instead.
From the source (phys-dim.mkiv), I can see that “=“ should expand to
\hphantom{0}. (I think \zeropoint in the table is outdated, since
\def\zeropoint\hphantom{0} does not solve the problem either.)
I can’t use tabulate or alignment in math mode for this problem unfortunately.
Any hints would be very welcome.
Thanks
Benjamin
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Re: [NTG-context] Compile only one new component in a project
Hi Aditya, It does not work ; the compilation encounters errors with each command that I created. I guess it comes from the components. Fabrice ##chapter-4-seconde.tex## \startcomponent chapter-4-seconde \startchapter[title=] ... \stopchapter \stopcomponent Le jeu. 7 mai 2020 à 16:01, Aditya Mahajan a écrit : > On Thu, 7 May 2020, Fabrice Couvreur wrote: > > > Hi, > > Here is part of a project that is starting to be heavy ; when i add a > > chapter i do context seconde.tex > > How do I compile only the chapter I just added ? > > Thank you. > > Fabrice > > > > \startproduct Seconde > > > > \environment modules > > \environment specialite-style > > \environment specialite-macros > > > > \startfrontmatter > > \component specialite-titlepage > > \component specialite-contents > > \stopfrontmatter > > > > \startbodymatter > >\component chapter-1-seconde > >\component chapter-2-seconde > >\component chapter-3-seconde > >\component chapter-4-seconde > > \stopbodymatter > > \stopproduct > > context chapter-4-seconde > > There is a MyWay which shows how you can share cross-refs etc. > > 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 webpage : http://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___
Re: [NTG-context] Retrieving original value of enviroment variable HOME
Hello Hans, - I would need to work with the original value in run-time (Win7 / WinX; ConTeXt MkIV). I'll add environment.oldhome being the original one (but no testing done here) would be great, thank you! I guess it will be available over the night (= ConTeXt latest)? Lukas Hans ___ 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 ___
Re: [NTG-context] Compile only one new component in a project
On Thu, 7 May 2020, Fabrice Couvreur wrote: Hi, Here is part of a project that is starting to be heavy ; when i add a chapter i do context seconde.tex How do I compile only the chapter I just added ? Thank you. Fabrice \startproduct Seconde \environment modules \environment specialite-style \environment specialite-macros \startfrontmatter \component specialite-titlepage \component specialite-contents \stopfrontmatter \startbodymatter \component chapter-1-seconde \component chapter-2-seconde \component chapter-3-seconde \component chapter-4-seconde \stopbodymatter \stopproduct context chapter-4-seconde There is a MyWay which shows how you can share cross-refs etc. 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 ___
[NTG-context] Compile only one new component in a project
Hi, Here is part of a project that is starting to be heavy ; when i add a chapter i do context seconde.tex How do I compile only the chapter I just added ? Thank you. Fabrice \startproduct Seconde \environment modules \environment specialite-style \environment specialite-macros \startfrontmatter \component specialite-titlepage \component specialite-contents \stopfrontmatter \startbodymatter \component chapter-1-seconde \component chapter-2-seconde \component chapter-3-seconde \component chapter-4-seconde \stopbodymatter \stopproduct ___ 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 ___
Re: [NTG-context] \placetable[location=split] reference ??
Okay, I found the solution myself: Need to specify \startxtable[split=repeat]
or else.
It’s actually a bit surprising that the value of the “outer” enivornment
(placetable) depends on the settings in the inner one (xtable). I speculate
this might be because the order of the tables might be different as soon as
xtable tries to place them …
Cheers
\startplacetable[reference=tab1,title={A table},location=split]
\startxtable[split=repeat]
\startxrow
\startxcell hi \stopxcell
\stopxrow
\stopxtable
\stopplacetable
> On 22 Apr 2020, at 21:10, Benjamin Buchmuller
> wrote:
>
> Hi,
>
> I would like to reference a table of the following structure.
>
> \starttext
>
> \startplacetable[reference=tab1,title={A table},location=split]
> \startxtable
> \startxrow
> \startxcell hi \stopxcell
> \stopxrow
> \stopxtable
> \stopplacetable
>
> In Table \in[tab1]
>
> \stoptext
>
>
> It has [location=split], which I need this because xtable doesn’t like to be
> placed without a split; and apparently neither does it accept the
> \placetable[ref]{...} syntax. However, the reference is now no longer
> detected.
>
> I can see that the split table’s caption is about to become "Table 1.a.",
> "Table 1.b" etc. and I appreciate that this is potentially a quite complex
> mechanism anyways, but if there was any chance to get a reference as “Table
> 1”, I would be helped a lot.
>
> On similar lines, is there a way to have “Table 1 (continued).” in the
> caption?
>
> Cheers
>
>
> Benjamin
>
>
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Re: [NTG-context] long caption in 2-page spread
After trying Hraban's two suggestions to resolve the problem of a
caption ('title=') for an image across a two-page spread (and I have
tried a variety of adaptations of those two possible solutions), I still
have not resolved the issue.
To repeat what Hans gave me, to resolve the 2-page spread in the first
instance:
\startpostponing
\setuppagenumbering[state=stop]
\startspread
\startplacefigure[location=here,title={This is a cow!}]
\externalfigure[cow.pdf][height=\textheight]%
\stopplacefigure
\stopspread
\setuppagenumbering[state=start]
\stoppostponing
The problem I have is that the figure has a title/caption much longer
than 'This is a cow', and the end result is that it commences on the
verso page but then runs across (repeats, part of it) on the recto page.
Hraban suggests, first of all:
title={\hbox to \textwidth{\vbox{Your lengthy caption}}}
but this results in the first part of the caption properly located
left-flushed on the verso page, and the other part right-flushed (and to
the right of the figure, so running off the page) on the recto page.
The second solution is
title={\framedtext[width=\textwidth,frame=off,align=right]{Your lengthy
caption}}
and this almost works, but this time part of the caption repeats on the
left of the recto page more or less within the inner margin, so I can
live with that, knowing that it will not be visible ultimately at the
binding stage.
Of course, what I really want to achieve is that the caption (aka
'title') appears either on the verso or the recto page, but not both. Is
that achievable? The actual coding for all this as I have it at the
moment is as follows:
\startpostponing
\setuppagenumbering[state=stop]
\startspread
\startplacefigure[location=here,title={{\sc Plates 12/13.}
\switchtobodyfont[9.5pt] My very, very,_very long\\ caption for this_
figure}]
\externalfigure[plate12-13.jpg][height=.8\textheight]%
\stopplacefigure
\stopspread
\setuppagenumbering[state=start]
\stoppostponing
but
..._very long caption_
_for this _...
is repeated on the recto page. This is what I want to avoid.
Julian
On 5/5/20 4:18 pm, Henning Hraban Ramm wrote:
Am 05.05.2020 um 03:31 schrieb jbf :
The following excellent solution (see below) to a 2-page spread of an image was
given me by Hans (I had been completely unaware of the command \startspread. It
appears to be recent and undocumented, but it certainly simplifies matters).
But in my case the title is a lengthy sentence, rather than the 4-word 'This is
a cow'. And even though I have been able to split the line, e.g. title={this is
my very, very, very,\\ very etc. etc. long title}, what happens is that part of
the caption still appears on the right-hand page of the spread.
Is there a way that I can limit the appearance of the caption to just one (the
left-hand) page? In other words, so the figure is spread but not the caption?
Or alternatively, have the caption neatly split across the two pages with
appropriate space inbetween? I tried various combinations, including an \hfill
halfway through the title, but to no avail. Perhaps this is asking too much,
but there may be a workaround.
I guess you need something like
title={\hbox to \textwidth{\vbox{Your lengthy caption}}}
or
title={\framedtext[width=\textwidth,frame=off,align=right]{Your lengthy
caption}}
HTH
Hraban
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Re: [NTG-context] Retrieving original value of enviroment variable HOME
On 5/6/2020 5:43 PM, cont...@vivaldi.net wrote:
Hello,
before I run ConTeXt, I set a (new) variable "HOME" to point to a
particular directory.
ConTeXt changes its value during startup - it sets its value to
%USERPROFILE% - I guess it is to unify environment somehow for all
platforms ConTeXt supports; probably here:
data-ini.lua, ln. ~86
do
local homedir = osgetenv(ostype == "windows" and 'USERPROFILE' or
'HOME') or ''
if not homedir or homedir == "" then
homedir = char(127) -- we need a value, later we wil trigger on it
end
homedir = file.collapsepath(homedir)
ossetenv("HOME", homedir) -- can be used in unix cnf files
<< HERE
ossetenv("USERPROFILE",homedir) -- can be used in windows cnf files
environment.homedir = homedir
end
But anyway - would it be possible to store the original value of HOME
environment variable (if set) before it gets changed during
initialization - e.g. to a Lua table?
- I would need to work with the original value in run-time (Win7 / WinX;
ConTeXt MkIV).
I'll add
environment.oldhome
being the original one (but no testing done here)
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
-
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