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% \iffalse meta-comment
%
% Copyright (C) 1993-2021
% The LaTeX Project and any individual authors listed elsewhere
% in this file.
%
% This file is part of the LaTeX base system.
% -------------------------------------------
%
% It 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
% https://www.latex-project.org/lppl.txt
% and version 1.3c or later is part of all distributions of LaTeX
% version 2008 or later.
%
% This file has the LPPL maintenance status "maintained".
%
% The list of all files belonging to the LaTeX base distribution is
% given in the file `manifest.txt'. See also `legal.txt' for additional
% information.
%
% The list of derived (unpacked) files belonging to the distribution
% and covered by LPPL is defined by the unpacking scripts (with
% extension .ins) which are part of the distribution.
%
% \fi
% \iffalse
%%
%% File `graphpap.dtx'.
%% Copyright (C) 1994 by Leslie Lamport
%% all rights reserved.
%%
%
%<package>\NeedsTeXFormat{LaTeX2e}
%<package>\ProvidesPackage{graphpap}
%<package> [1994/08/09 v1.0c Standard LaTeX graphpap package (LL)]
%
%<*driver>
\documentclass{ltxdoc}
\usepackage{graphpap}
\GetFileInfo{graphpap.sty}
\begin{document}
\title{The \textsf{graphpap} package\thanks{This file
has version number \fileversion, last
revised \filedate.}}
\author{Leslie Lamport}
\date{\filedate}
\MaintainedByLaTeXTeam{latex}
\maketitle
\DocInput{graphpap.dtx}
\end{document}
%</driver>
% \fi
%
%
% \changes{v1.0b}{1994/04/28}{(DPC) convert to doc format}
%
%
% |\graphpaper|\oarg{N}\parg{X,Y}\parg{DX,DY}
% Makes a grid with left-hand corner at \parg{X,Y}, extending
% \parg{DX,DY} units in the X and Y directions, where the lines are
% \emph{N} units apart. Every fifth line is thick and is numbered.
% The default value of \emph{N} is 10.
% The arguments must all be integers.
%
% \StopEventually
%
% First, we define three counters. The first two are defined
% as raw TeX counters since multiplication and division must be
% performed in them.
%
% \changes{v1.0b}{1994/04/28}{(DPC) Remove allocations.}
% \begin{macrocode}
%<*package>
% \newcount\@gridx% now (\@tempcnta)
% \newcount\@gridy% now (\@tempcntb)
% \newcounter{@grid}
\let\c@@grid\count@
% \end{macrocode}
%
% Next we define the following commands to draw vertical and horizontal
% grids. The ``nonum'' commands just draw the grids; the other commands
% also print numbers. All the arguments must be integers.
%
% VERTICAL GRIDS
%
% \noindent
% |\@vgrid|\parg{xpos,ypos}\marg{xincrement}\\
% | |\marg{number-of-lines}\marg{length-of-lines}
%
% \noindent
% |\@nonumvgrid|\parg{xpos,ypos}\marg{xincrement}\\
% | |\marg{number-of-lines} \marg{length-of-lines}
%
% HORIZONTAL GRIDS
%
% \noindent
% |\@hgrid|\parg{xpos,ypos}\marg{yincrement}\\
% | |\marg{number-of-lines}\marg{length-of-lines}
%
% \noindent
% |\@nonumhgrid| same as |\@hgrid| but no numbers drawn
%
% \begin{macrocode}
\def\@vgrid(#1,#2)#3#4#5{%
\setcounter{@grid}{#1}%
\multiput(#1,#2)(#3,0){#4}{\line(0,1){#5}}%
\multiput(#1,#2)(#3,0){#4}{\@vgridnumber{#3}}}
% \end{macrocode}
%
% \begin{macrocode}
\def\@vgridnumber#1{%
\makebox(0,0)[t]{%
\shortstack{\rule{0pt}{10pt}\\\arabic{@grid}}}%
\addtocounter{@grid}{#1}}
% \end{macrocode}
%
% \begin{macrocode}
\def\@nonumvgrid(#1,#2)#3#4#5{%
\multiput(#1,#2)(#3,0){#4}{\line(0,1){#5}}}
% \end{macrocode}
%
% \begin{macrocode}
\def\@hgrid(#1,#2)#3#4#5{%
\setcounter{@grid}{#2}%
\multiput(#1,#2)(0,#3){#4}{\line(1,0){#5}}%
\multiput(#1,#2)(0,#3){#4}{\@hgridnumber{#3}}}
% \end{macrocode}
%
% \begin{macrocode}
\def\@hgridnumber#1{%
\makebox(0,0)[r]{\arabic{@grid}\hspace{10pt}}%
\addtocounter{@grid}{#1}}
% \end{macrocode}
%
% \begin{macrocode}
\def\@nonumhgrid(#1,#2)#3#4#5{%
\multiput(#1,#2)(0,#3){#4}{\line(1,0){#5}}}
% \end{macrocode}
%
% Finally, |\graphpaper| is defined in a straightforward way in terms of
% the commands above.
%
% \begin{macro}{\graphpaper}
% \changes{v1.0c}{1994/08/09}{(DPC) add \cs{leavevmode}}
% \begin{macrocode}
\newcommand\graphpaper[1][10]{\leavevmode\@grid{#1}}
% \end{macrocode}
% \end{macro}
%
% \begin{macro}{\@grid}
%
% \changes{v1.0b}{1994/04/28}
% {(DPC) convert ignore spaces between arguments}
% \begin{macrocode}
\def\@grid#1(#2,#3)#4{\@grid@i{#1}{#2}{#3}(}
% \end{macrocode}
% \end{macro}
%
% \begin{macro}{\@grid@i}
%
% \changes{v1.0b}{1994/04/28}
% {(DPC) macro introduced}
% \begin{macrocode}
\def\@grid@i#1#2#3(#4,#5){%
\@tempcnta=#4\relax
\divide\@tempcnta#1\relax
\advance\@tempcnta1\relax
{\thinlines\@nonumvgrid(#2,#3){#1}{\@tempcnta}{#5}
\@tempcnta#4\relax
\divide\@tempcnta5\relax
\divide\@tempcnta#1\relax
\advance\@tempcnta1\relax
\@tempcntb5\relax
\multiply\@tempcntb#1\relax
\thicklines\@vgrid(#2,#3){\@tempcntb}{\@tempcnta}{#5}
\@tempcnta#5\relax
\divide\@tempcnta #1\relax
\advance\@tempcnta1\relax
\thinlines\@nonumhgrid(#2,#3){#1}{\@tempcnta}{#4}
\@tempcnta#5\relax
\divide\@tempcnta5\relax
\divide\@tempcnta#1\relax
\advance\@tempcnta1\relax
\thicklines\@hgrid(#2,#3){\@tempcntb}{\@tempcnta}{#4}}%
\ignorespaces}
%</package>
% \end{macrocode}
% \end{macro}
%
% \Finale
%
|
