Btukfyl

I'm trying to align the signature with the destination address in a french styled letter.

I could use the very good lettre class as mentioned in my previous question but I need to scrlttr2 to reuse the org-mode koma export back-end.

I tried setting the position with the following commands:

Test 0

makeatletter

@setplength{sigindent}{-useplength{refhpos}+useplength{toaddrhpos}}}

makeatother

Test 1

setkomavar{signature}{Chef Abraracoursix,\Un chef à toujours bras long.}

Test 2

setkomavar{signature}{hspace{26em}includegraphics[width=2.5cm]

{example-image}}

Test 3

setkomavar{signature}{hspace{26em}

  begin{minipage}[t]{7cm}

    {Chef Abraracoursix,hfill \Un chef à toujours bras long.}

  end{minipage}}

But the signature is stuck to the left.
Here is my full code and the result I'm looking for.

% Created 2019-04-08 lun. 11:20

% Intended LaTeX compiler: pdflatex

documentclass{scrlttr2}

usepackage[francais]{babel}

usepackage[utf8]{inputenc}

usepackage{hyperref}

% usepackage{showframe} % to show the page boundaries from https://tex.stackexchange.com/questions/298246/signatures-side-by-side



% usepackage{geometry} 

% geometry{verbose,a4paper,lmargin=3cm,rmargin=3cm}



LoadLetterOption{visualize}

showfields{head,foot,address,location,refline}

LoadLetterOption{NF}

renewcaptionname{french}{subjectname}{Objet}

renewcaptionname{french}{ccname}{C.c.}



KOMAoption{

  ,foldmarks=false

  ,refline=nodate

  ,subject=titled

  ,fromemail=false

  ,fromlogo=false

  ,fromphone=false

  ,fromurl=false

  ,backaddress=false

  ,foldmarks=false

}





% from name

setkomavar{fromname}{Chef Abraracoursix}

setkomafont{fromname}{scshape}



%%%%%%%%%%%%%%%% HERE %%%%%%%%%%%%%%%%

% signature



%%%% test 1

% setkomavar{signature}{Chef Abraracoursix,\Un chef à toujours bras long.}



%%%% test 2

% setkomavar{signature}{hspace{26em}includegraphics[width=2.5cm]{example-image}}% <- changed



%%%% test 3

% setkomavar{signature}{hspace{26em}

%   begin{minipage}[t]{7cm}

%     {Chef Abraracoursix,hfill \Un chef à toujours bras long.}

%   end{minipage}}



%%%% test 4

setkomavar{signature}{

  noindent parbox[t]{0.5linewidth}{Chef Abraracoursix,hfill \Un chef à toujours bras long.}

} 



%%%%%%%%%%%%%%%% above %%%%%%%%%%%%%%%%





% from adress

setkomavar{fromaddress}{Place du village,\Erqy,\Armorique}

setkomafont{fromaddress}{small}



% place and location

setkomavar{place}{Erqy}

setkomavar{placeseparator}{, le }



% other komavar

setkomavar{ccseparator}{}

setkomavar*{ccseparator}{llap{ccnamequad}}

% usepackage{setspace} usepackage{lipsum} setstretch{1.15}



% setlengthparskip{medskipamount} 

% setlengthparindent{0pt}

% setstretch{1.15}



date{today}



makeatletter

% firsthead

setkomavar{firsthead}{{

    usekomafont{fromaddress}

    parbox[b]{useplength{firstheadwidth}}{

      {usekomafont{fromname}usekomavar{fromname}}

      hfill{usekomafont{placeanddate}

        ifkomavarempty{place}{}{usekomavar{place}usekomavar{placeseparator}}

        usekomavar{date}

      }

      \usekomavar{fromaddress}

      medskip

      if@phone\usekomavar*{fromphone}usekomavar{fromphone}fi

      if@mobilephone\usekomavar*{frommobilephone}usekomavar{frommobilephone}fi

      if@fax\usekomavar*{fromfax}usekomavar{fromfax}fi

      if@email\usekomavar*{fromemail}usekomavar{fromemail}fi

      if@www\usekomavar*{fromurl}usekomavar{fromurl}fi

    }}

}



makeatletter

%%%% TEST 0

% @setplength{sigindent}{-useplength{refhpos}+useplength{toaddrhpos}}}

makeatother

renewcommand*{raggedsignature}{raggedright}





hypersetup{

  pdfauthor={Chef Abraracoursix},

  pdftitle={Invitation pour une banquet au sanglier Roti},

  pdfcreator={Emacs 26.1 (Org mode 9.1.9)}, 

  pdflang={French}}



begin{document}



setkomavar{subject}{Invitation pour une banquet au sanglier Roti}



begin{letter}{

    Capitaine Paulus Romanicus\

    Camp de Babaorum

    Bretany}



  opening{Le Romain,}



  Dans le cadre des rapports de bon voisinage et de notre hospitalité légendaire, nous vous invitons à festoyer avec nous sous le grand chêne, du coucher du soleil à l'aube, à la prochaine plein lune pour le mariage de la belle Fabala et de vigourix.

  closing{À la tienne !}



end{letter}



end{document}

Idealy I would like

makeatletter

@setplength{sigindent}{-useplength{refhpos}+useplength{toaddrhpos}}}

makeatother

to work as expected with pseudo-lenght given in https://i.stack.imgur.com/D2tu3.png

You calculation -useplength{refhpos}+useplength{toaddhpos} does not result in a value, that moves the signature to the middle of the text area.

In your example the value of refhpos is 0pt and the value of toaddrhpos is -10mm (given by NF.lco). Your

@setplength{sigindent}{-useplength{refhpos}+useplength{toaddrhpos}}

(I've remove one }, which was to much), would result in an sigindent of -10mm. This would result in a position 10mm left to the left edge of the text area. So it is not what you want.

The image you've linked (which is figure 22.1 of the current KOMA-Script manual), is about address fields at the left side. You are using an address field on the right side. So toaddrhpos is the distance from the right paper edge to the right address field edge. It is negative (as told above). The refhpos has nothing to do with the position of the address field.

Please have a look into table 22.1 in part II of the KOMA-Script manual and into the descriptions of the pseudo length in section 22.1 to see, how the values of toaddhpos, refhpos and sigindent are interpreted by scrlttr2.

You may try something like:

setplength{sigindent}{.5textwidth}

Or a more complicate but correct calculation:

setplength{sigindent}{paperwidth+useplength{toaddrhpos}-useplength{toaddrwidth}+useplength{toaddrindent}-oddsidemargin-1in}

Note: This does only work for toaddrhpos < 0.

paperwidth+useplenth{toaddrhpos} is the position of the right edge of the address field relative to the left edge of the paper. Subtracting useplength{toaddrwidth} results in the left edge of the address field relative to the left edge of the paper. Adding useplength{toaddrindent} results in the left edge of the address relative to the left edge of the paper. But sigindent is relative to the left edge of the text area not the paper. So we have to subtract the left margin, which is (in oneside documents for all pages) oddsidemargin+1in.

Note: Since KOMA-Script 3.26 setplength instead of @setplength is recommended. @setplength is an internal command now. You should not longer use it.

Here is an example, that illustrates the calculation:

documentclass[%

  paper=a4,

  fontsize=11pt,

  french,

]{scrlttr2}



usepackage{eso-pic,picture,xcolor}% for demonstration only



usepackage{babel}

usepackage[T1]{fontenc} 

usepackage[utf8]{inputenc}

usepackage{hyperref}



%LoadLetterOption{visualize}

%showfields{head,foot,address,location,refline}

LoadLetterOption{NF}

renewcaptionname{french}{subjectname}{Objet}

renewcaptionname{french}{ccname}{C.c.}



KOMAoptions{

  ,foldmarks=false

  ,refline=nodate

  ,subject=titled

  ,fromemail=false

  ,fromlogo=false

  ,fromphone=false

  ,fromurl=false

  ,backaddress=false

  ,foldmarks=false

}



% from name

setkomavar{fromname}{Chef Abraracoursix}

setkomafont{fromname}{scshape}



setkomavar{signature}{noindent Chef Abraracoursix,\Un chef à toujours bras long.}

setplength{sigindent}{paperwidth+useplength{toaddrhpos}-useplength{toaddrwidth}+useplength{toaddrindent}-oddsidemargin-1in}

% Show the calculation (for demonstration only)

AddToShipoutPicture{%

  AtPageUpperLeft{%

    color{red}%

    footnotesize

    put(0,-useplength{toaddrvpos}){%

      vector(1,0){dimexprpaperwidth+useplength{toaddrhpos}relax}%

    }%

    put(0,-useplength{toaddrvpos}){%

      makebox(dimexprpaperwidth+useplength{toaddrhpos}relax,htstrutbox)[cb]{ttfamilydetokenize{paperwidth+useplength{toaddrhpos}}}%

    }%

    color{red!80!blue!80}%

    put(dimexprpaperwidth+useplength{toaddrhpos}relax,-dimexpruseplength{toaddrvpos}+htstrutboxrelax){%

      vector(-1,0){useplength{toaddrwidth}}%

    }%

    put(dimexprpaperwidth+useplength{toaddrhpos}-useplength{toaddrwidth}relax,-dimexpruseplength{toaddrvpos}+htstrutboxrelax){%



      makebox(useplength{toaddrwidth},htstrutbox)[cb]{ttfamilydetokenize{useplength{toaddrwidth}}}%

    }%

    color{red!60!blue!60}%

    put(dimexprpaperwidth+useplength{toaddrhpos}-useplength{toaddrwidth}relax,-dimexpruseplength{toaddrvpos}+htstrutbox*2relax){%

      vector(1,0){useplength{toaddrindent}}%

    }%

    put(dimexprpaperwidth+useplength{toaddrhpos}-useplength{toaddrwidth}relax,-dimexpruseplength{toaddrvpos}+htstrutbox*2relax){%

      makebox(useplength{toaddrindent},htstrutbox){%

        ttfamilydetokenize{useplength{toaddrindent}}%

      }%

    }%

    color{green}%

    put(dimexproddsidemargin+1inrelax,

    -dimexpruseplength{toaddrvpos}+2cmrelax){%

      vector(1,0){%

        dimexprpaperwidth+useplength{toaddrhpos}-useplength{toaddrwidth}+useplength{toaddrindent}-oddsidemargin-1inrelax

      }%

    }%

    put(dimexproddsidemargin+1inrelax,

    -dimexpruseplength{toaddrvpos}+2cmrelax){%

      makebox(dimexprpaperwidth+useplength{toaddrhpos}-useplength{toaddrwidth}+useplength{toaddrindent}-oddsidemargin-1inrelax,htstrutbox)[lb]{%

        detokenize{paperwidth+useplength{toaddrhpos}-useplength{toaddrwidth}+useplength{toaddrindent}-oddsidemargin-1in}%

      }%

    }%

    color{blue}%

    put(dimexprpaperwidth+useplength{toaddrhpos}-useplength{toaddrwidth}+useplength{toaddrindent}relax,0){%

      line(0,-1){paperheight}%

    }%

  }%

}



% from adress

setkomavar{fromaddress}{Place du village,\Erqy,\Armorique}

setkomafont{fromaddress}{small}



% place and location

setkomavar{place}{Erqy}

setkomavar{placeseparator}{, le }



% other komavar

setkomavar{ccseparator}{}

setkomavar*{ccseparator}{llap{ccnamequad}}



date{today}



% firsthead

setkomavar{firsthead}{%

    usekomafont{fromaddress}%

    parbox[b]{useplength{firstheadwidth}}{%

      {usekomafont{fromname}usekomavar{fromname}}%

      hfill{%

        usekomafont{placeanddate}%

        ifkomavarempty{place}{}{usekomavar{place}usekomavar{placeseparator}}

        usekomavar{date}

      }%

      \usekomavar{fromaddress}%

      medskip

      if@phone\usekomavar*{fromphone}usekomavar{fromphone}fi%

      if@mobilephone\usekomavar*{frommobilephone}usekomavar{frommobilephone}fi%

      if@fax\usekomavar*{fromfax}usekomavar{fromfax}fi%

      if@email\usekomavar*{fromemail}usekomavar{fromemail}fi%

      if@www\usekomavar*{fromurl}usekomavar{fromurl}fi%

    }%

}



renewcommand*{raggedsignature}{raggedright}



hypersetup{%

  pdfauthor={Chef Abraracoursix},

  pdftitle={Invitation pour une banquet au sanglier Roti},

  pdfcreator={Emacs 26.1 (Org mode 9.1.9)}, 

  pdflang={French}

}





makeatletter

renewcommand*{closing}[1]{{%

    setparsizes{z@}{z@}{z@ plus 1fil}par@updaterelativenobreakpar

    nobreakvskipbaselineskip

    stopbreaksnoindent

    settowidth{@tempdima}{%

      begin{tabular}{@{}l@{}}%

        #1tabularnewline

        usekomavar{signature}tabularnewline

      end{tabular}%

    }%

    setlength{@tempdimb}{hsize}%

    addtolength{@tempdimb}{-useplength{sigindent}}%

    ifdim@tempdima>@tempdimbsetlength{@tempdima}{@tempdimb}fi

    hspace{useplength{sigindent}}%

    parbox{@tempdima}{raggedsignaturestrutignorespaces

      #1ifhmodescr@endstrut\[useplength{sigbeforevskip}]

        elsevskip useplength{sigbeforevskip}fi

      strutignorespaces

      usekomavar{signature}ifhmodescr@endstrutfi}}par

  nobreakvskipbaselineskip

}

makeatother



begin{document}



setkomavar{subject}{Invitation pour une banquet au sanglier Roti}



begin{letter}{%

    Capitaine Paulus Romanicus\

    Camp de Babaorum

    Bretany}



opening{Le Romain,}



Dans le cadre des rapports de bon voisinage et de notre hospitalité 

légendaire, nous vous invitons à festoyer avec nous sous le grand chêne, 

du coucher du soleil à l'aube, à la prochaine plein lune pour le mariage 

de la belle Fabala et de vigourix.

closing{À la tienne !}



end{letter}



end{document}

Note, there were several other issues with your code:

usepackage[francais]{babel}

is deprecated. Current babel warns:

Package francais.ldf Warning: Option `francais' for Babel is *deprecated*,

(francais.ldf)                it might be removed sooner or later. Please

(francais.ldf)                use `french' instead; reported on input line 31.

KOMAoption{

  ,foldmarks=false

  ,refline=nodate

  ,subject=titled

  ,fromemail=false

  ,fromlogo=false

  ,fromphone=false

  ,fromurl=false

  ,backaddress=false

  ,foldmarks=false

}

is wrong. KOMAoption has two arguments. The first one is an option key, the second is a list of option values.

To help users to find out what's wrong, the current prerelease of KOMA-Script shows the following error message with your wrong usage of KOMAoption:

./test.tex:28: Package scrbase Error: syntax error in key ` ,foldmarks=false ,r

efline=nodate ,subject=titled ,fromemail=false ,fromlogo=false ,fromphone=false

 ,fromurl=false ,backaddress=false ,foldmarks=false '.



See the scrbase package documentation for explanation.

Type  H <return>  for immediate help.

 ...                                              



l.28 }



You've used `...Option' to set the key ` ,foldmarks=false ,refline=nodate ,sub

ject=titled ,fromemail=false ,fromlogo=false ,fromphone=false ,fromurl=false ,b

ackaddress=false ,foldmarks=false '

to new value(s), but `,' is not allowed in the key of an option

(and `...Option' does not use `,' to separate several keys).

Maybe you've meant ...Options instead of ...Option.

If you'll continue, I'll give it a try, but you should expect further

and even strange error messages.

As the help text of the error message explains:

KOMAoptions{

  ,foldmarks=false

  ,refline=nodate

  ,subject=titled

  ,fromemail=false

  ,fromlogo=false

  ,fromphone=false

  ,fromurl=false

  ,backaddress=false

  ,foldmarks=false

}

would be correct.

Your definition of firsthead adds several significant but unwanted white spaces. See What is the use of percent signs (%) at the end of lines? for more information how to avoid them.

Last but not least, you have a

makeatletter

instead of

makeatletter

in your document preamble.

The problem here is that pseudolength toaddrhpos is set in NF.lco to a negative value of -10mm with command @setplength{toaddrhpos}{-10mm}.

That means that the value of 10mm is not the value between left paper side and address field, it is the value between the right paper side and the adress box. Usually the adress box is printed first (on the left side of the paper) and the location box follows then. With file NF-lco that changed as you already showed in your picture in your question.

sigindent is always calculated from the left side of the typing area, so you have to calculate the needed value for sigindent by yourself.

One possibility is:

setplength{sigindent}{paperwidth+useplength{toaddrhpos}-useplength{toaddrwidth}-useplength{toaddrindent}-useplength{toaddrindent}-useplength{refhpos}}

That means we calculate the paperwidth minus toaddrhpos (because its value is already minus we have to use plus here) minus toaddrwidth minus refhpos minus two times toaddrindent.

With that calculation in your corrected given code

documentclass[%

  paper=a4,

  fontsize=11pt,

  french,

]{scrlttr2}



usepackage{babel}

usepackage[T1]{fontenc} 

usepackage[utf8]{inputenc}

usepackage{hyperref}





%LoadLetterOption{visualize}

%showfields{head,foot,address,location,refline}

LoadLetterOption{NF}

renewcaptionname{french}{subjectname}{Objet}

renewcaptionname{french}{ccname}{C.c.}



KOMAoptions{

  ,foldmarks=false

  ,refline=nodate

  ,subject=titled

  ,fromemail=false

  ,fromlogo=false

  ,fromphone=false

  ,fromurl=false

  ,backaddress=false

  ,foldmarks=false

}



% from name

setkomavar{fromname}{Chef Abraracoursix}

setkomafont{fromname}{scshape}



setkomavar{signature}{noindent Chef Abraracoursix,\Un chef à toujours bras long.}

setplength{sigindent}{paperwidth+useplength{toaddrhpos}-useplength{toaddrwidth}-useplength{toaddrindent}-useplength{toaddrindent}-useplength{refhpos}} % <===============



% from adress

setkomavar{fromaddress}{Place du village,\Erqy,\Armorique}

setkomafont{fromaddress}{small}



% place and location

setkomavar{place}{Erqy}

setkomavar{placeseparator}{, le }



% other komavar

setkomavar{ccseparator}{}

setkomavar*{ccseparator}{llap{ccnamequad}}



date{today}





% firsthead

setkomavar{firsthead}{%

    usekomafont{fromaddress}%

    parbox[b]{useplength{firstheadwidth}}{%

      {usekomafont{fromname}usekomavar{fromname}}%

      hfill{%

        usekomafont{placeanddate}%

        ifkomavarempty{place}{}{usekomavar{place}usekomavar{placeseparator}}

        usekomavar{date}

      }%

      \usekomavar{fromaddress}%

      medskip

      if@phone\usekomavar*{fromphone}usekomavar{fromphone}fi%

      if@mobilephone\usekomavar*{frommobilephone}usekomavar{frommobilephone}fi%

      if@fax\usekomavar*{fromfax}usekomavar{fromfax}fi%

      if@email\usekomavar*{fromemail}usekomavar{fromemail}fi%

      if@www\usekomavar*{fromurl}usekomavar{fromurl}fi%

    }%

}



renewcommand*{raggedsignature}{raggedright}



hypersetup{%

  pdfauthor={Chef Abraracoursix},

  pdftitle={Invitation pour une banquet au sanglier Roti},

  pdfcreator={Emacs 26.1 (Org mode 9.1.9)}, 

  pdflang={French}

}





begin{document}



setkomavar{subject}{Invitation pour une banquet au sanglier Roti}



begin{letter}{%

    Capitaine Paulus Romanicus\

    Camp de Babaorum

    Bretany}



opening{Le Romain,}



Dans le cadre des rapports de bon voisinage et de notre hospitalité 

légendaire, nous vous invitons à festoyer avec nous sous le grand chêne, 

du coucher du soleil à l'aube, à la prochaine plein lune pour le mariage 

de la belle Fabala et de vigourix.

closing{À la tienne !}



end{letter}



end{document}

you get the following result:

It seems there is a difference of 5pt too much I do not know where it comes from (rounding errors, an indent I did not saw?). In the case of this mwe you can add them to the calculation with:

setplength{sigindent}{paperwidth+useplength{toaddrhpos}-useplength{toaddrwidth}-useplength{toaddrindent}-useplength{toaddrindent}-useplength{refhpos}-5pt}