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igs.cls
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igs.cls
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%% igs.cls / written and maintained by ali woollatt (Cambridge)
%% copyright 2015 International Glaciological Society
%% v4.00 3-sept-2015
%% modification for v4.00 3-sept-2015
%% 1 changed \marginpar to italic
%% modification for v3.03, 18-jun-2015
%% 1 increased sizes for review mode
%% modification for v3.02, 27-mar-2015
%% 1 updated typeout line
%% 2 reduced size of \marginpar comments
%% modification for v3.01, 12-oct-2011
%% 1 added support For extra symbols added to Optima TeX fonts:
%% \perthousand a.k.a. \permil, \copyright, \registered & \trademark
%% modification for v3.00, 29-oct-2009
%% 1 combined most up-to-Date version of last version with sloppy paragraphs instruction to avoid hyphenation probs
%% modifications for v2.01, 7-oct-2008
%% 1 changed value of \hyphenpenalty and added \pretolerance
%% 2 changed Annals strapline as per new style, 2009
%% modifications for v2.00, 12-jun-08
%%
%% 1 prodtf option to include Optima fonts at the IGS, by Mark Reed
%% 2 changed font size of \bibitem(s)
%% 3 corrected size of subscripts in normalsize font
%% 4 changed \enskip after section number to single space
%% 5 changed \appendixname to APPENDIX
%% 6 removed the thin space from equation numbers in appendices
%% 7 added \clubpenalty and \hyphenpenalty
%% 8 redefined \marginpar
%% 9 added values for various floatseps and for floats on float pages/columns
%% 10 increased stretch around \displayskip for \small and \normalsize (also in review option)
%% 11 increased stretch to enumerate
%% 12 added \flushbottom
%% 13 added coding to enable stfloats to work with igs.cls
%% 14 added \RequirePackage{igsupmath} for prodtf option
%% 15 corrected equation numbering in appendix
%% 16 check if the author has AMS fonts
%% 17 changed review option to double-space lines
%% 18 prodtf option to bring in latest hyphenation dictionary
%%
%% developed from article.cls 2004/02/16 v1.4f
%%
%% This file was developed from `article.cls',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% classes.dtx (with options: `article')
%%
%% This is a generated file.
%%
%% Copyright 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004
%% The LaTeX3 Project and any individual authors listed elsewhere
%% in this file.
%%
%% This file was generated from file(s) of the LaTeX base system.
%% --------------------------------------------------------------
%%
%% It may be distributed and/or modified under the
%% conditions of the LaTeX Project Public License, either version 1.3
%% 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 1.3 or later is part of all distributions of LaTeX
%% version 2003/12/01 or later.
%%
%% This file has the LPPL maintenance status "maintained".
%%
%% This file may only be distributed together with a copy of the LaTeX
%% base system. You may however distribute the LaTeX base system without
%% such generated files.
%%
%% 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.
%% \CharacterTable
%% {Upper-case \A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z
%% Lower-case \a\b\c\d\e\f\g\h\i\j\k\l\m\n\o\p\q\r\s\t\u\v\w\x\y\z
%% Digits \0\1\2\3\4\5\6\7\8\9
%% Exclamation \! Double quote \" Hash (number) \#
%% Dollar \$ Percent \% Ampersand \&
%% Acute accent \' Left paren \( Right paren \)
%% Asterisk \* Plus \+ Comma \,
%% Minus \- Point \. Solidus \/
%% Colon \: Semicolon \; Less than \<
%% Equals \= Greater than \> Question mark \?
%% Commercial at \@ Left bracket \[ Backslash \\
%% Right bracket \] Circumflex \^ Underscore \_
%% Grave accent \` Left brace \{ Vertical bar \|
%% Right brace \} Tilde \~}
\NeedsTeXFormat{LaTeX2e}[1995/12/01]
\ProvidesClass{igs}
[2015/09/03 v4.00 IGS document class]
\newcommand{\@viiiptvpt}{8.5}%fig and table captions
\DeclareMathSizes{\@viiiptvpt}{\@viiiptvpt}{\@viipt}{\@vpt}
\newcommand{\@ixptvpt}{9.5}%normalsize
\DeclareMathSizes{\@ixptvpt}{\@ixptvpt}{\@viipt}{\@vpt}
\newcommand{\@xptvpt}{10.5}%sectionsize
\DeclareMathSizes{\@xptvpt}{\@xptvpt}{\@viipt}{\@vipt}
\newcommand{\@xiiiptvpt}{13.5}%large For author
\DeclareMathSizes{\@xiiiptvpt}{\@xiiiptvpt}{\@xpt}{\@viipt}
\newcommand{\@xviiptvpt}{17.5}%LARGE For title
\DeclareMathSizes{\@xviiptvpt}{\@xviiptvpt}{\@xiipt}{\@xpt}
\newcommand\small{% 9/10
\@setfontsize\small\@ixpt\@xpt
\abovedisplayskip 5\p@ \@plus 5\p@ \@minus 1\p@
\belowdisplayskip \abovedisplayskip
\abovedisplayshortskip 3\p@ \@plus 3\p@
\belowdisplayshortskip \abovedisplayshortskip
}
\newcommand\footnotesize{\smaller}%strictly, this should be 7.5/9.5pt
\newcommand\indexsize{\@setfontsize\indexsize\@viiipt\@ixpt}
\newcommand\scriptsize{\@setfontsize\scriptsize\@viipt\@viiipt}
\newcommand\tiny{\@setfontsize\tiny\@vpt\@vipt}
\newcommand\captionsize{\@setfontsize\captionsize\@viiiptvpt{10.5}}%fig and table captions (8.5/10.5)
\newcommand\smaller{\@setfontsize\smaller\@viiipt\@xpt}% For entries in tables (8/10)
\newcommand\abstractsize{\@setfontsize\abstractsize\@ixptvpt{12.5}}%abstractsize (9.5/12.5)
\newcommand\subsectionsize{\@setfontsize\subsectionsize\@xptvpt{11.5}}%subsection heads (10.5/11.5)
\newcommand\sectionsize{\@setfontsize\sectionsize\@xptvpt{12.5}}%section heads (10.5/12.5)
\newcommand\large{\@setfontsize\large\@xiiiptvpt{16.5}}%authorsize (13.5/16.5)
\newcommand\Large{\@setfontsize\Large\@xivpt{18}}
\newcommand\LARGE{\@setfontsize\LARGE\@xviiptvpt{20.5}}%titlesize (17.5/20.5)
\newcommand\huge{\@setfontsize\huge\@xxpt{25}}
\newcommand\Huge{\@setfontsize\Huge\@xxvpt{30}}
\renewcommand\normalsize{%
\@setfontsize\normalsize{9.5pt}{11.5pt}
\abovedisplayskip 5.75\p@ \@plus 5.75\p@ \@minus 1\p@
\belowdisplayskip \abovedisplayskip
\abovedisplayshortskip 3\p@ \@plus 3\p@
\belowdisplayshortskip \abovedisplayshortskip
}
\newif\ifprodtf
\DeclareOption{prodtf}{\prodtftrue}
\newif\ifproof % option to place typesetters name, etc. at foot of pages
\DeclareOption{proof}{\prooftrue}
%\newcommand\@ptsize{}
\newif\if@restonecol
\newif\if@titlepage
\newif\if@tablestar
\@titlepagefalse
%\if@compatibility\else
%\DeclareOption{a4paper}
% {\setlength\paperheight {297mm}%
% \setlength\paperwidth {210mm}}
%\DeclareOption{a5paper}
% {\setlength\paperheight {210mm}%
% \setlength\paperwidth {148mm}}
%\DeclareOption{b5paper}
% {\setlength\paperheight {250mm}%
% \setlength\paperwidth {176mm}}
%\DeclareOption{letterpaper}
% {\setlength\paperheight {11in}%
% \setlength\paperwidth {8.5in}}
%\DeclareOption{legalpaper}
% {\setlength\paperheight {14in}%
% \setlength\paperwidth {8.5in}}
%\DeclareOption{executivepaper}
% {\setlength\paperheight {10.5in}%
% \setlength\paperwidth {7.25in}}
%\DeclareOption{landscape}
% {\setlength\@tempdima {\paperheight}%
% \setlength\paperheight {\paperwidth}%
% \setlength\paperwidth {\@tempdima}}
%\fi
%\if@compatibility
% \renewcommand\@ptsize{0}
%\else
%\DeclareOption{10pt}{\renewcommand\@ptsize{0}}
%\fi
%\DeclareOption{11pt}{\renewcommand\@ptsize{1}}
%\DeclareOption{12pt}{\renewcommand\@ptsize{2}}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% AMS check
% check if the author has AMS Euler fonts installed
% if they have, attempt to use the 'igsupmath' package to provide upright math
\newif\iffontfound
\newcommand\checkfont[1]{%
\batchmode
\font\test=#1\relax
\errorstopmode
\fontfoundfalse
\ifx\test\nullfont \else \fontfoundtrue\fi
}
\AtBeginDocument{%
\ifprodtf\else
\checkfont{eurm10}
\iffontfound
\IfFileExists{igsupmath.sty}
{\typeout{^^JFound AMS Euler Roman fonts on the system,
using the 'igsupmath' package.^^J}%
\usepackage{igsupmath}}
{\typeout{^^JFound AMS Euler Roman fonts on the system, but you
don't seem to have the}%
\typeout{'igsupmath' package installed. igs.cls can take advantage
of these fonts,^^Jif you use the 'igsupmath' package.^^J}%
\providecommand\mathup[1]{##1}%
\providecommand\mathbup[1]{##1}%
}
\else % no AMS fonts
\providecommand\mathup[1]{#1}%
\providecommand\mathbup[1]{#1}%
\providecommand\upi{\pi}%
\providecommand\upartial{\partial}%
\providecommand\ubpartial{\partial}%
\providecommand\ualpha{\alpha}%
\providecommand\ubalpha{\alpha}%
\providecommand\ubeta{\beta}%
\providecommand\ubbeta{\beta}%
\providecommand\ugamma{\gamma}%
\providecommand\ubgamma{\gamma}%
\providecommand\udelta{\delta}%
\providecommand\ubdelta{\delta}%
\fi
\fi
% check if the author has AMS symbol fonts installed
% if they have, attempt to use the 'amssymb' package to provide the AMS symbol characters
\ifprodtf\else
\checkfont{msam10}
\iffontfound
\IfFileExists{amssymb.sty}
{\typeout{^^JFound AMS Symbol fonts on the system, using the
'amssymb' package.^^J}%
\usepackage{amssymb}%
}{}
\fi
\fi
% check if the author has the AMS 'amsbsy' package installed
% if they have, use it to provide better bold math support (with \boldsymbol).
\ifprodtf\else
\IfFileExists{amsbsy.sty}
{\typeout{^^JFound the 'amsbsy' package on the system, using it.^^J}%
\usepackage{amsbsy}}
{\providecommand\boldsymbol[1]{\mbox{\boldmath $##1$}}}
\fi
}
% end of AMS check
%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\setlength\headsep{30pt}
\setlength\voffset{-44pt}
\setlength\hoffset{-27pt}
\setlength\textwidth{178mm}
\setlength\columnsep{6mm}
\setlength\columnseprule{\z@}
\oddsidemargin -2mm
\evensidemargin 2mm
\setlength\marginparwidth{2.2pc}
\setlength\marginparsep{0.5pc}
\let\igsocmarginpar\marginpar
\renewcommand\marginpar[1]{\mbox{}\igsocmarginpar{\footnotesize\textit{#1}}}
\if@compatibility\else
\DeclareOption{oneside}{\@twosidefalse \@mparswitchfalse}
\fi
\DeclareOption{twoside}{\@twosidetrue \@mparswitchtrue}
\DeclareOption{draft}{\setlength\overfullrule{5pt}}
\if@compatibility\else
\DeclareOption{final}{\setlength\overfullrule{0pt}}
\fi
\DeclareOption{titlepage}{\@titlepagetrue}
\if@compatibility\else
\DeclareOption{notitlepage}{\@titlepagefalse}
\fi
\if@compatibility\else
\DeclareOption{onecolumn}{\@twocolumnfalse}
\fi
\DeclareOption{twocolumn}{\@twocolumntrue}
\newif\if@annals
\DeclareOption{annals}{\@annalstrue}
\newif\if@letterp@per
\DeclareOption{letterpaper}{\@letterp@pertrue}
\newif\if@review
\DeclareOption{review}{\@reviewtrue}
\DeclareOption{leqno}{\input{leqno.clo}}
\DeclareOption{fleqn}{\input{fleqn.clo}}
\DeclareOption{openbib}{%
\AtEndOfPackage{%
\renewcommand\@openbib@code{%
\advance\leftmargin\bibindent
\itemindent -\bibindent
\listparindent \itemindent
\parsep \z@
}%
\renewcommand\newblock{\par}}%
}
\ExecuteOptions{twoside,onecolumn,final}%article.cls settings -- letterpaper,10pt,oneside,
\ProcessOptions
\ifprodtf
\RequirePackage{igsupmath}
\RequirePackage{igsoptima}
\RequirePackage{igshyphen-feb08}
\PassOptionsToPackage{psamsfonts}{amsfonts}
% From omscmsy.fd -
\DeclareFontShape{OMS}{cmsy}{m}{n}{%
<-6>cmsy5<-7>cmsy6<-8>cmsy7<-9>cmsy8<-10>cmsy9<10->cmsy10}
{}
\DeclareFontShape{OMS}{cmsy}{b}{n}{<-7>cmbsy5<-10>cmbsy7<10->cmbsy10}{}
% From omlcmm.fd -
\DeclareFontShape{OML}{cmm}{m}{it}{%
<-6>cmmi5<-7>cmmi6<-8>cmmi7<-9>cmmi8<-10>cmmi9<-12>cmmi10<12->cmmi12}
{}
\DeclareFontShape{OML}{cmm}{b}{it}{<-7>cmmib5<-10>cmmib7<10->cmmib10}{}
% From ot1cmtt.fd -
\DeclareFontShape{OT1}{cmtt}{m}{n}{%
<-9>cmtt8<-10>cmtt9<-12>cmtt10<12->cmtt12}
{}
\DeclareFontShape{OT1}{cmtt}{m}{it}{<->cmitt10}{}
\DeclareFontShape{OT1}{cmtt}{m}{sl}{<->cmsltt10}{}
\DeclareFontShape{OT1}{cmtt}{m}{sc}{<->cmtcsc10}{}
% Over-write specifications in OMLxpop.fd
\DeclareFontFamily{OML}{xpop}{\skewchar\font127}
\DeclareFontShape{OML}{xpop}{m}{sl}{<->xpopo}{}
\DeclareFontShape{OML}{xpop}{b}{sl}{<->xpopbo}{}
% Commas in Math mode come from Optima Roman
\DeclareSymbolFont{oprletters} {OT1}{xpop}{m}{n}
\SetSymbolFont{oprletters} {bold}{OT1}{xpop}{b}{n}
\DeclareMathSymbol{,}{\mathpunct}{oprletters}{"2C}
% Math italic letters come from Optima Oblique
\DeclareSymbolFont{opletters} {OML}{xpop}{m}{sl}
\SetSymbolFont{opletters} {bold}{OML}{xpop}{b}{sl}
\DeclareMathSymbol{a}{\mathalpha}{opletters}{`a}
\DeclareMathSymbol{b}{\mathalpha}{opletters}{`b}
\DeclareMathSymbol{c}{\mathalpha}{opletters}{`c}
\DeclareMathSymbol{d}{\mathalpha}{opletters}{`d}
\DeclareMathSymbol{e}{\mathalpha}{opletters}{`e}
\DeclareMathSymbol{f}{\mathalpha}{opletters}{`f}
\DeclareMathSymbol{g}{\mathalpha}{opletters}{`g}
\DeclareMathSymbol{h}{\mathalpha}{opletters}{`h}
\DeclareMathSymbol{i}{\mathalpha}{opletters}{`i}
\DeclareMathSymbol{j}{\mathalpha}{opletters}{`j}
\DeclareMathSymbol{k}{\mathalpha}{opletters}{`k}
\DeclareMathSymbol{l}{\mathalpha}{opletters}{`l}
\DeclareMathSymbol{m}{\mathalpha}{opletters}{`m}
\DeclareMathSymbol{n}{\mathalpha}{opletters}{`n}
\DeclareMathSymbol{o}{\mathalpha}{opletters}{`o}
\DeclareMathSymbol{p}{\mathalpha}{opletters}{`p}
\DeclareMathSymbol{q}{\mathalpha}{opletters}{`q}
\DeclareMathSymbol{r}{\mathalpha}{opletters}{`r}
\DeclareMathSymbol{s}{\mathalpha}{opletters}{`s}
\DeclareMathSymbol{t}{\mathalpha}{opletters}{`t}
\DeclareMathSymbol{u}{\mathalpha}{opletters}{`u}
\DeclareMathSymbol{v}{\mathalpha}{opletters}{`v}
\DeclareMathSymbol{w}{\mathalpha}{opletters}{`w}
\DeclareMathSymbol{x}{\mathalpha}{opletters}{`x}
\DeclareMathSymbol{y}{\mathalpha}{opletters}{`y}
\DeclareMathSymbol{z}{\mathalpha}{opletters}{`z}
\DeclareMathSymbol{A}{\mathalpha}{opletters}{`A}
\DeclareMathSymbol{B}{\mathalpha}{opletters}{`B}
\DeclareMathSymbol{C}{\mathalpha}{opletters}{`C}
\DeclareMathSymbol{D}{\mathalpha}{opletters}{`D}
\DeclareMathSymbol{E}{\mathalpha}{opletters}{`E}
\DeclareMathSymbol{F}{\mathalpha}{opletters}{`F}
\DeclareMathSymbol{G}{\mathalpha}{opletters}{`G}
\DeclareMathSymbol{H}{\mathalpha}{opletters}{`H}
\DeclareMathSymbol{I}{\mathalpha}{opletters}{`I}
\DeclareMathSymbol{J}{\mathalpha}{opletters}{`J}
\DeclareMathSymbol{K}{\mathalpha}{opletters}{`K}
\DeclareMathSymbol{L}{\mathalpha}{opletters}{`L}
\DeclareMathSymbol{M}{\mathalpha}{opletters}{`M}
\DeclareMathSymbol{N}{\mathalpha}{opletters}{`N}
\DeclareMathSymbol{O}{\mathalpha}{opletters}{`O}
\DeclareMathSymbol{P}{\mathalpha}{opletters}{`P}
\DeclareMathSymbol{Q}{\mathalpha}{opletters}{`Q}
\DeclareMathSymbol{R}{\mathalpha}{opletters}{`R}
\DeclareMathSymbol{S}{\mathalpha}{opletters}{`S}
\DeclareMathSymbol{T}{\mathalpha}{opletters}{`T}
\DeclareMathSymbol{U}{\mathalpha}{opletters}{`U}
\DeclareMathSymbol{V}{\mathalpha}{opletters}{`V}
\DeclareMathSymbol{W}{\mathalpha}{opletters}{`W}
\DeclareMathSymbol{X}{\mathalpha}{opletters}{`X}
\DeclareMathSymbol{Y}{\mathalpha}{opletters}{`Y}
\DeclareMathSymbol{Z}{\mathalpha}{opletters}{`Z}
% Define (text)eth, Eth, thorn and Thorn. These will only work
% from the IGS Optima fonts!
\DeclareTextSymbol{\texteth}{OT1}{130} % avoid AMS definition of mathmode \eth
\DeclareTextSymbol{\Eth}{OT1}{131}
\DeclareTextSymbol{\thorn}{OT1}{132}
\DeclareTextSymbol{\Thorn}{OT1}{133}
\DeclareTextSymbol{\textperthousand}{OT1}{134}
\DeclareTextSymbol{\textcopyright}{OT1}{135}
\DeclareTextSymbol{\textregistered}{OT1}{136}
\DeclareTextSymbol{\texttrademark}{OT1}{137}
\DeclareRobustCommand{\perthousand}{%
\ifmmode{\nfss@text{\textperthousand}}\else\textperthousand\fi}
\let\permil\perthousand
\DeclareRobustCommand{\copyright}{%
\ifmmode{\nfss@text{\textcopyright}}\else\textcopyright\fi}
\DeclareRobustCommand{\registered}{%
\ifmmode{\nfss@text{\textregistered}}\else\textregistered\fi}
\DeclareRobustCommand{\trademark}{%
\ifmmode{\nfss@text{\texttrademark}}\else\texttrademark\fi}
%
\fi
\normalsize
%\input{size1\@ptsize.clo}
\setlength\lineskip{1\p@}
\setlength\normallineskip{1\p@}
\renewcommand\baselinestretch{}
\setlength\parskip{0\p@}
\@lowpenalty 51
\@medpenalty 151
\@highpenalty 301
\setlength\parindent{1em}
\setcounter{topnumber}{1}
\renewcommand\topfraction{.9}
\setcounter{bottomnumber}{1}
\renewcommand\bottomfraction{.9}
\setcounter{totalnumber}{4}
\renewcommand\textfraction{.05}
\renewcommand\floatpagefraction{.95}
\setcounter{dbltopnumber}{1}
\renewcommand\dbltopfraction{.9}
\renewcommand\dblfloatpagefraction{.9}
\setlength\floatsep{10.5\p@ \@plus 10.5\p@ \@minus 3\p@}% between stacked floats
\setlength\textfloatsep{25\p@ \@plus 13\p@ \@minus 8\p@}% between text and float
\setlength\intextsep{13\p@ \@plus 7\p@ \@minus 2\p@}% above and below float when [h] is used
\setlength\dblfloatsep{10.5\p@ \@plus 10.5\p@ \@minus 3\p@}% between stacked double-column floats
\setlength\dbltextfloatsep{25\p@ \@plus 13\p@ \@minus 8\p@}% between text and double-column float
% for floats on a separate float page or column:
% one-column mode or single-column floats in two-column mode:
\@fptop 0pt plus 0fil
\@fpsep 13pt plus 0.5fil
\@fpbot 0pt plus 3fil
% double-column floats in two-column mode.
\@dblfptop 0pt plus 0fil
\@dblfpsep 13pt plus 0.5fil
\@dblfpbot 0pt plus 3fil
\newcommand\volume[1]{\gdef\@volume{#1}}
\gdef\@volume{00}
\newcommand\issueno[1]{\gdef\@issueno{#1}}
\gdef\@issueno{000}
\newcommand\pubyear[1]{\def\@pubyear{#1}}
\edef\@pubyear{0000}
\newcommand\articleref[1]{\def\@articleref{#1}}
\edef\@articleref{xxx}
\newcommand\typesetby[1]{\def\@typesetby{#1}}
\edef\@typesetby{xxx}
\newcommand\proofno[1]{\def\@proofno{#1}}
\edef\@proofno{0}
\newcommand\journal[1]{\gdef\@journal{#1}}
\if@annals
%\gdef\@journal{Annals of Glaciology \@volume\ \@pubyear}
\gdef\@journal{Annals of Glaciology \@volume (\@issueno) \@pubyear}
\else
\gdef\@journal{Journal of Glaciology, Vol. \@volume, No. \@issueno, \@pubyear}
\fi
\if@letterp@per
\setlength\textheight{59\baselineskip}
\else
\setlength\textheight{63\baselineskip}
\fi
\addtolength\textheight{\topskip}
% increase sizes for review mode, for everything 9.5pt and below
\if@review
\setlength\textheight{59\baselineskip}% letterpaper length
\addtolength\textheight{2\topskip}
\onecolumn
\usepackage{lineno}% line numbering package
\linenumbers% use continuous numbering
%
% increase all baselineskips by 2
%
\renewcommand\small{%
\@setfontsize\small\@xpt{20}%\@xpt increased from 9pt
\abovedisplayskip 10\p@ \@plus 10\p@ \@minus 2\p@
\belowdisplayskip \abovedisplayskip
\abovedisplayshortskip 6\p@ \@plus 6\p@
\belowdisplayshortskip \abovedisplayshortskip
}
\renewcommand\indexsize{\@setfontsize\indexsize\@ixptvpt{18}}%\@ixpt} increased from 8pt
\renewcommand\scriptsize{\@setfontsize\scriptsize\@ixpt{16}}%\@viiipt} increased from 7pt
\renewcommand\tiny{\@setfontsize\tiny\@viiipt{12}}%\@vipt} increased from 5pt
\renewcommand\captionsize{\@setfontsize\captionsize\@xpt{21}}%fig and table captions (10/10.5) increased from 8.5pt
\renewcommand\smaller{\@setfontsize\smaller\@ixptvpt{20}}%\@xpt}% For entries in tables (9.5/10) increased from 8pt
\renewcommand\footnotesize{\smaller}%strictly, this should be 7.5/9.5pt
\renewcommand\abstractsize{\@setfontsize\abstractsize\@xipt{25}}%{12.5}}%abstractsize (11/12.5)increased from 9.5pt
\renewcommand\subsectionsize{\@setfontsize\subsectionsize\@xiipt{23}}%{11.5}}%subsection heads (12/11.5) increased from 10.5pt
\renewcommand\sectionsize{\@setfontsize\sectionsize\@xiipt{25}}%{12.5}}%section heads (12/12.5) increased from 10.5pt
\renewcommand\large{\@setfontsize\large\@xiiiptvpt{33}}%{16.5}}%authorsize (13.5/16.5) !left as is
\renewcommand\Large{\@setfontsize\Large\@xivpt{36}}%{18}} !left as is
\renewcommand\LARGE{\@setfontsize\LARGE\@xviiptvpt{41}}%{20.5}}%titlesize (17.5/20.5) !left as is
\renewcommand\huge{\@setfontsize\huge\@xxpt{50}}%{25}} !left as is
\renewcommand\Huge{\@setfontsize\Huge\@xxvpt{60}}%{30}} !left as is
%
\renewcommand\normalsize{%
\@setfontsize\normalsize{11pt}{23}%{11.5pt}%increased from 9.5pt
\abovedisplayskip 11.5\p@ \@plus 11.5\p@ \@minus 2\p@
\belowdisplayskip \abovedisplayskip
\abovedisplayshortskip 6\p@ \@plus 6\p@
\belowdisplayshortskip \abovedisplayshortskip
}
%
\normalsize
\fi
\mark{{}{}}
\renewcommand\author{\@ifnextchar [{\@authortwo}{\@authorone}}
\def\@authortwo[#1]#2{\gdef\@author{#2}\gdef\@shortauthor{#1}}
\def\@authorone#1{\gdef\@author{#1}%
\begingroup\def\and{and}\gdef\@shortauthor{#1}\endgroup}
\gdef\@author{\mbox{}}
\newcommand\shortauthor[1]{\gdef\@shortauthor{#1}}
\gdef\@shortauthor{}
\renewcommand\title{\@ifnextchar [{\@titletwo}{\@titleone}}
\def\@titletwo[#1]#2{\gdef\@title{#2}\gdef\@shorttitle{#1}}
\def\@titleone#1{\gdef\@title{#1}\gdef\@shorttitle{#1}}
\gdef\@title{\mbox{}}
\newcommand\shorttitle[1]{\gdef\@shorttitle{#1}}
\gdef\@shorttitle{}
% add catchline to titlepage using 'proof' option
\ifproof
\def\ps@titlepage{\leftskip\z@\let\@mkboth\@gobbletwo\vfuzz=5\p@
\def\@oddhead{\normalfont\indexsize \@journal \hfil\llap{\thepage}}%
\def\@evenhead{\normalfont\indexsize \rlap{\thepage}\hfil \@journal}%
\def\@oddfoot{\vbox to 30pt{\hsize=178mm\vfill{\hfil\footnotesize igs.cls v2.01\quad\today\quad
Article ref \@articleref\quad
Typeset by \@typesetby\quad
Proof no \@proofno\hfil}}}%
\let\@evenfoot\@oddfoot
\def\sectionmark##1{}%
\def\subsectionmark##1{}%
}%
\else
\def\ps@titlepage{\leftskip\z@\let\@mkboth\@gobbletwo\vfuzz=5\p@
\def\@oddhead{\normalfont\indexsize \@journal \hfil\llap{\thepage}}%
\def\@evenhead{\normalfont\indexsize \rlap{\thepage}\hfil \@journal}%
\def\@oddfoot{}%
\def\@evenfoot{}%
\def\sectionmark##1{}%
\def\subsectionmark##1{}%
}%
\fi
% add catchline to rest of pages using 'proof' option
\ifproof
\def\ps@headings{\let\@mkboth\markboth
\def\@oddhead{\indexsize\normalfont{\itshape\@shortauthor: \@shorttitle}\hfil\llap{\thepage}}%
\def\@evenhead{\indexsize\normalfont\rlap{\thepage}\hfil \itshape\@shortauthor: \@shorttitle}%
\def\@oddfoot{\vbox to 30pt{\hsize=178mm\vfill{\hfil\footnotesize igs.cls v2.01\quad\today\quad
Article ref \@articleref\quad
Typeset by \@typesetby\quad
Proof no \@proofno\hfil}}}%
%\def\@evenfoot{}%
\let\@evenfoot\@oddfoot
\def\sectionmark##1{\markboth{##1}{}}%
\def\subsectionmark##1{\markright{##1}}%
}%
\else
\def\ps@headings{\let\@mkboth\markboth
\def\@oddhead{\indexsize\normalfont{\itshape\@shortauthor: \@shorttitle}\hfil\llap{\thepage}}%
\def\@evenhead{\indexsize\normalfont\rlap{\thepage}\hfil \itshape\@shortauthor: \@shorttitle}%
\def\@oddfoot{}%
\def\@evenfoot{}%
\def\sectionmark##1{\markboth{##1}{}}%
\def\subsectionmark##1{\markright{##1}}%
}%
\fi
\def\ps@myheadings{%
\let\@oddfoot\@empty\let\@evenfoot\@empty
\def\@evenhead{\thepage\hfil\slshape\leftmark}%
\def\@oddhead{{\slshape\rightmark}\hfil\thepage}%
\let\@mkboth\@gobbletwo
\let\sectionmark\@gobble
\let\subsectionmark\@gobble
}
\newcommand\@raggedright{\rightskip=\@flushglue \let\\=\@centercr
\parindent\z@}
\newcommand\@raggedcenter{\centering\rightskip=\@flushglue
\let\\=\@centercr}
\newcommand\affiliation[1]{\gdef\@affiliation{#1}}
\gdef\@affiliation{}
\def\tabular{\def\@halignto{}
\def\hline{\noalign{\ifnum0=`}\fi
\vskip 6pt
% \hrule \@height \arrayrulewidth
\if@tablestar
{\hbox to \textwidth{\hrulefill}}%
\else
{\hbox to 86mm{\hrulefill}}%
\fi
\vskip 6pt%
\futurelet \@tempa\@xhline}
%
\def\fullhline{\noalign{\ifnum0=`}\fi
\vskip 6pt
% \hrule \@height \arrayrulewidth
{\hbox to \textwidth{\hrulefill}}
\vskip 6pt
\futurelet \@tempa\@xhline}
%
\def\@xhline{\ifx\@tempa\hline
\vskip -12pt
\vskip \doublerulesep
\fi
\ifnum0=`{\fi}}
\def\@arrayrule{\@addtopreamble{\hskip -.5\arrayrulewidth
% \vrule \@width \arrayrulewidth
\hskip .5\arrayrulewidth}}
\@tabular
}
\renewcommand\eqnarray{%
\stepcounter{equation}%
\def\@currentlabel{\p@equation\theequation}%
\global\@eqnswtrue
\m@th
\global\@eqcnt\z@
\tabskip\@centering
\let\\\@eqncr
$$\everycr{}\halign to\displaywidth\bgroup
\hskip\@centering$\displaystyle\tabskip\z@skip{##}$\@eqnsel
&\global\@eqcnt\@ne\hskip 0.75\arraycolsep \hfil${##}$\hfil %Space closed around operator
&\global\@eqcnt\tw@ \hskip 0.75\arraycolsep %Space closed around operator
$\displaystyle{##}$\hfil\tabskip\@centering
&\global\@eqcnt\thr@@ \hb@xt@\z@\bgroup\hss##\egroup
\tabskip\z@skip
\cr
}
\if@titlepage
\newcommand\maketitle{\begin{titlepage}%
\let\footnotesize\small
\let\footnoterule\relax
\let \footnote \thanks
\null\vfil
\vskip 60\p@
\begin{center}%
{\LARGE \@title \par}%
\vskip 3em%
{\large
\lineskip .75em%
\begin{tabular}[t]{c}%
\@author
\end{tabular}\par}%
\vskip 1.5em%
{\large \@date \par}% % Set date in \large size.
\end{center}\par
\@thanks
\vfil\null
\end{titlepage}%
\setcounter{footnote}{0}%
\global\let\thanks\relax
\global\let\maketitle\relax
\global\let\@thanks\@empty
\global\let\@author\@empty
\global\let\@affiliation\@empty
\global\let\@date\@empty
\global\let\@title\@empty
\global\let\title\relax
\global\let\author\relax
\global\let\date\relax
\global\let\and\relax
}
\else
\newcommand\maketitle{\par
\begingroup
\renewcommand\thefootnote{\@fnsymbol\c@footnote}%
\def\@makefnmark{\rlap{\@textsuperscript{\normalfont\@thefnmark}}}%
\long\def\@makefntext##1{%\parindent 1em
\noindent
% \hb@xt@1.8em{%
% \hss\@textsuperscript{\normalfont\@thefnmark}}##1}%
{\@textsuperscript{\normalfont\@thefnmark}}##1}%
\if@twocolumn
\ifnum \col@number=\@ne
\@maketitle
\else
\twocolumn[\@maketitle]%
\fi
\else
\newpage
\global\@topnum\z@ % Prevents figures from going at top of page.
\@maketitle
\fi
\thispagestyle{titlepage}\@thanks
\endgroup
\setcounter{footnote}{0}%
\global\let\thanks\relax
\global\let\maketitle\relax
\global\let\@maketitle\relax
\global\let\@thanks\@empty
\global\let\@author\@empty
\global\let\@date\@empty
\global\let\@title\@empty
\global\let\title\relax
\global\let\author\relax
\global\let\date\relax
\global\let\and\relax
}
\def\@maketitle{%
\newpage
\null
\vspace*{-8\p@}%
{\let \footnote \thanks
\centering \sloppy
{\normalfont\LARGE\bfseries\@title\par}%
\vskip 12\p@ \@plus 2\p@ \@minus 1\p@
{\normalfont\large\@author\par}%
\vskip 8\p@ \@plus 1\p@
{\normalfont\itshape\@affiliation \par}%
\vskip 5\p@ \@plus 2\p@ \@minus 1\p@
\par}%
\vskip 8\p@ \@plus 2\p@ \@minus 1\p@
{\abstractsize\bfseries\rmfamily
\list{}{\leftmargin 14mm \rightmargin\leftmargin
\parsep \z@ \@plus 1\p@ \listparindent\parindent}%
\item[]{\normalfont\bfseries ABSTRACT.}\enskip\ignorespaces \@abstract\ignorespaces\par}%
\endlist
\vskip 30\p@ \@plus 10\p@ \@minus 2\p@
}
\fi
\setcounter{secnumdepth}{0}
\newcounter {part}
\newcounter {section}
\newcounter {subsection}[section]
\newcounter {subsubsection}[subsection]
\newcounter {paragraph}[subsubsection]
\newcounter {subparagraph}[paragraph]
\renewcommand \thepart {\@Roman\c@part}
\renewcommand \thesection {\@arabic\c@section}
\renewcommand\thesubsection {\thesection.\@arabic\c@subsection}
\renewcommand\thesubsubsection{\thesubsection.\@arabic\c@subsubsection}
\renewcommand\theparagraph {\thesubsubsection.\@arabic\c@paragraph}
\renewcommand\thesubparagraph {\theparagraph.\@arabic\c@subparagraph}
\newcommand\part{%
\if@noskipsec \leavevmode \fi
\par
\addvspace{4ex}%
\@afterindentfalse
\secdef\@part\@spart}
\def\@part[#1]#2{%
\ifnum \c@secnumdepth >\m@ne
\refstepcounter{part}%
\addcontentsline{toc}{part}{\thepart\hspace{1em}#1}%
\else
\addcontentsline{toc}{part}{#1}%
\fi
{\parindent \z@ \raggedright
\interlinepenalty \@M
\normalfont
\ifnum \c@secnumdepth >\m@ne
\Large\bfseries \partname\nobreakspace\thepart
\par\nobreak
\fi
\huge \bfseries #2%
\markboth{}{}\par}%
\nobreak
\vskip 3ex
\@afterheading}
\def\@spart#1{%
{\parindent \z@ \raggedright
\interlinepenalty \@M
\normalfont
\huge \bfseries #1\par}%
\nobreak
\vskip 3ex
\@afterheading}
\newcommand\section{%
\@startsection{section}{1}{\z@}%
{-19pt\@plus -6pt\@minus -3pt}%
{3pt}%
{\normalfont\sectionsize\bfseries\@raggedright\uppercase}}
\newcommand\subsection{%
\@startsection{subsection}{2}{\z@}%
{-8.5pt\@plus -3pt \@minus -1.5pt}%
{3pt}%
{\normalfont\subsectionsize\bfseries\@raggedright}}
\newcommand\subsubsection{%
\@startsection{subsubsection}{3}{\z@}%
{-11.5pt\@plus -3pt \@minus -1.5pt}%
{0.001pt}%
{\normalfont\subsectionsize\itshape\@raggedright}}
\newcommand\paragraph{%
\@startsection{paragraph}{4}{\z@}%
{-11.5pt\@plus -3pt \@minus -1.5pt}%
{0.001pt}%
{\normalfont\normalsize\@raggedright}}
\newcommand\subparagraph{%
\@startsection{subparagraph}{5}{\parindent}%
{3.25ex \@plus1ex \@minus .2ex}%
{-1em}%
{\normalfont\normalsize\bfseries}}
\def\@secappcntformat#1{%
\ifappendix \appendixname%\ifoneappendix
%\else
~\fi%\fi
%\ifoneappendix\else
\csname the#1\endcsname\relax%\fi
\ifx\apphe@d\@empty \else .\fi\enskip
}
% change enskip after section number to single space
% \@sect{1NAME}{2LEVEL}{3INDENT}{4BEFORESKIP}{5AFTERSKIP}{6STYLE}[ARG1]{ARG2}
\def\@sect#1#2#3#4#5#6[#7]#8{% FROM LATEX.LTX
\ifnum #2<3
\def\@seccntformat##1{\normalfont\bfseries\csname the##1\endcsname.\ }
\else
\ifnum #2=3
\def\@seccntformat##1{\normalfont\itshape\csname the##1\endcsname.\ }
\else
\def\@seccntformat##1{\normalfont\rmfamily\csname the##1\endcsname.\ }
\fi
\fi
\ifnum #2>\c@secnumdepth
\let\@svsec\@empty
\else
\refstepcounter{#1}%
\ifnum #2>\@ne
\protected@edef\@svsec{\@seccntformat{#1}\relax}%
\else
\def\apphe@d{#8}%
\protected@edef\@svsec{\@secappcntformat{#1}\relax}%
\fi
\fi
\@tempskipa #5\relax
\ifdim \@tempskipa>\z@
\begingroup
#6{%
\@hangfrom{\hskip #3\relax\@svsec}%
\interlinepenalty \@M #8\@@par}%
\endgroup
\csname #1mark\endcsname{#7}%
\ifnum #2=\@ne
\addcontentsline{toc}{#1}{%
\ifnum #2>\c@secnumdepth \else
\ifappendix \appendixname~\csname the#1\endcsname
\else \protect\numberline{\csname the#1\endcsname.}#7\fi
\fi}%
\else
\addcontentsline{toc}{#1}{%
\ifnum #2>\c@secnumdepth \else
\protect\numberline{\csname the#1\endcsname.}#7\fi}%
\fi
\else
\def\@svsechd{%
#6{\hskip #3\relax
\@svsec #8}%
\csname #1mark\endcsname{#7}%
\addcontentsline{toc}{#1}{%
\ifnum #2>\c@secnumdepth \else
\protect\numberline{\csname the#1\endcsname.}%
\fi
#7}}%
\fi
\@xsect{#5}}
\if@twocolumn
\setlength\leftmargini {14pt}
\else
\setlength\leftmargini {14pt}
\fi
\leftmargin \leftmargini
\setlength\leftmarginii {2.2em}
\setlength\leftmarginiii {1.87em}
\setlength\leftmarginiv {1.7em}
\if@twocolumn
\setlength\leftmarginv {.5em}
\setlength\leftmarginvi {.5em}
\else
\setlength\leftmarginv {1em}
\setlength\leftmarginvi {1em}
\fi
\setlength \labelsep {.5em}
\setlength \labelwidth{\leftmargini}
\addtolength\labelwidth{-\labelsep}
\@beginparpenalty -\@lowpenalty
\@endparpenalty -\@lowpenalty
\@itempenalty -\@lowpenalty
\renewcommand\theenumi{\@arabic\c@enumi}
\renewcommand\theenumii{\@alph\c@enumii}
\renewcommand\theenumiii{\@roman\c@enumiii}
\renewcommand\theenumiv{\@Alph\c@enumiv}
\newcommand\labelenumi{\theenumi.}
\newcommand\labelenumii{(\theenumii)}
\newcommand\labelenumiii{\theenumiii.}
\newcommand\labelenumiv{\theenumiv.}
\renewcommand\p@enumii{\theenumi}
\renewcommand\p@enumiii{\theenumi(\theenumii)}
\renewcommand\p@enumiv{\p@enumiii\theenumiii}
\newcommand\labelitemi{}% not a bullet -- leave blank
\newcommand\labelitemii{\normalfont\bfseries \textendash}
\newcommand\labelitemiii{\textasteriskcentered}
\newcommand\labelitemiv{\textperiodcentered}
\newcommand\makeitemlabel[1]{\hspace\labelwidth\hspace\labelsep\hfill #1}
% itemize environment has no bullets/dashes/etc.
\def\itemize{% FROM LATEX.LTX
\ifnum \@itemdepth >\thr@@ \@toodeep\else
\advance\@itemdepth\@ne
\edef\@itemitem{labelitem\romannumeral\the\@itemdepth}%
\expandafter
\list
\csname\@itemitem\endcsname
{\topsep 0.5\baselineskip\itemsep 0.5\baselineskip\labelsep 0pt\labelwidth 0pt%
\let\makelabel\makeitemlabel}%
\fi
}