%% tikzlibrarynfold.code.tex
%% Copyright 2023 Jonathan Schulz
%
% This work may be distributed and/or modified under the
% conditions of the LaTeX Project Public License, either version 1.3c
% of this license or (at your option) any later version.
% The latest version of this license is in
%
http://www.latex-project.org/lppl.txt
% and version 1.3c or later is part of all distributions of LaTeX
% version 2008-05-04 or later.
%
% This work has the LPPL maintenance status 'maintained'.
%
% The Current Maintainer of this work is Jonathan Schulz.
%
% This work consists of the files
% pgflibrarybezieroffset.code.tex, pgflibrarynfold.code.tex, pgflibraryoffsetpath.code.tex, tikz-nfold-doc.tex, tikzlibrarynfold.code.tex, tikz-nfold-doc.tex, and tikz-nfold-doc.pdf.
%
%
% A commented version of this file can be found on
https://github.com/jonschz/tikz-nfold .
%
\usepgflibrary{nfold}
\usetikzlibrary{arrows.meta}
\tikzset{
nfold/.code={
\edef\pgf@tmp{\noexpand\pgfkeys{/pgf/nfold=#1}}
\expandafter\expandafter\expandafter\def%
\expandafter\expandafter\expandafter\tikz@double@setup%
\expandafter\expandafter\expandafter{\expandafter\tikz@double@setup\pgf@tmp}
},
nfold/.default=2,
scaling nfold/.code={%
\pgfscope%
\tikz@double@setup
\pgf@nfold@compute@widths@from@double
\pgf@y=2\pgf@y
\c@pgf@counta=#1
\advance\c@pgf@counta by -1\relax
\global\pgf@y=\c@pgf@counta\pgf@y
\endpgfscope
\tikzset{
double distance between line centers=\pgf@y,
nfold=#1
}
},
scaling nfold/.default=2,
commutative diagrams/scaling nfold/.code={
\pgfscope%
\tikz@double@setup
\pgf@nfold@compute@widths@from@double
\c@pgf@counta=#1
\advance\c@pgf@counta by -1\relax
\pgf@ya=\c@pgf@counta\pgf@y
\advance\c@pgf@counta by -1\relax
\pgf@xa=\c@pgf@counta\pgf@y
\advance\pgf@xa by .5\pgf@x
\global\pgf@x=\pgf@xa
\global\pgf@y=2\pgf@ya
\endpgfscope
\tikzset{
commutative diagrams/every label/.append style/.expanded={outer sep=\the\pgf@x},
double distance between line centers=\pgf@y,
nfold=#1
}
},
commutative diagrams/scaling nfold/.default=2
}
\endinput
