随意更改字体或字体特征

Question

建立了文档平台如下：

\documentclass[10pt,b5paper,twoside]{report}
%--------------------------
%--- Packages required
%--------------------------
\usepackage{microtype}
\usepackage{lettrine}
\usepackage{fontspec}
\usepackage{fourier-orns, multido}
\usepackage{graphicx}
\usepackage{tabularx, booktabs}
\usepackage{enumitem}
\usepackage{titleps}
\usepackage[textwidth=110mm, textheight=180mm, marginratio={4:6,5:7},nofoot, nomarginpar]{geometry}
\usepackage{polyglossia}
\usepackage{setspace}

%--------------------------
%--- Set commands
%--------------------------
\defaultfontfeatures{Numbers = {OldStyle,Proportional},Ligatures = Rare, Style = Historic, 
StylisticSet={1,5},WordSpace = 1.2}%

\renewpagestyle{plain} {%
\sethead{}{[\enspace\thepage\enspace]}{}
}%

\pagestyle{plain}

\setmainlanguage{english}

%---------------------------------------------------------
%--- Fonts used: IM FELL DW Pica Font Family
%--- http://www.1001fonts.com/im-fell-dw-pica-font.html
%---------------------------------------------------------
\setmainfont{IMFePisc29P.ttf}

%------------------------------
%--- Beginning of the document
%------------------------------
\begin{document}

\newgeometry{textwidth=89mm, textheight =158mm, marginratio={4:6,5:7},nofoot}
\noindent\renewcommand\arraystretch{2}
\hskip-0.2em\multido{\n=1+1}{14}{\decoone\decosix}\decoone

\noindent\begin{tabularx}{\linewidth}{@{} >{\centering\LARGE\addfontfeature{LetterSpace=15.0} 
  \arraybackslash}X@{}}
\textsc{r e s u l t} \\
\textsc{\normalsize of the} \\
\itshape CONVENTION, \&c. \\
\bottomrule
\end{tabularx}
\vskip4ex


%---------------------------------------------
%--- Needs to be italicized and set to 12pt 
%---------------------------------------------
\setlength\leftskip{1em}{\itshape\hskip-2.3em
  In Convention of Delegates from the several towns of Lynn, Salem, Danvers, Wenham, 
  Manchester, Glou\-cester, Ipswich, Newbury-Port, Salisbury, Methuen, Boxford \& Topsfield, 
  holden by adjourment at Ipswich, on the twenty-ninth day of April, one thousand seven 
  hundred \& seventy eight.}

%---------------------------------------------
%--- Needs to be bold, set to 12pt, left justified  
%---------------------------------------------
\vspace{5mm} %added to make space 
\large Peter Coffin Esq ; in the Chair.

%------------------------------------------------------
%--- Needs to be set to 10pt after large first letter 
%------------------------------------------------------
\vspace{5mm} %added to make space 
\setlength\leftskip{2mm}

\lettrine[lines=4,slope=0.6em,findent=0.6em,nindent=0em]{T}{HE} Constitution and form of Government framed 
by the Convention of this State, was read paragraph by paragraph, and after debate, the following
votes were passed.

\end{document}

如何实现以下目标：

1. 使用列出的斜体字体将指示的段落斜体化，并设置该段落的字体大小
2. 在一行中左对齐（Peter Coffin Esq 行）
3. “随机”地在本地改变字体、大小、形状（通常针对文档的任何部分）？

提前感谢您的帮助。

Answer 1

fontspec手册第 6 页内容如下：

文件名选择的字体必须明确包含粗体和斜体变体。

\setmainfont{texgyrepagella-regular.otf}[ 
  BoldFont  = texgyrepagella-bold.otf , 
  ItalicFont  = texgyrepagella-italic.otf ,
  BoldItalicFont = texgyrepagella-bolditalic.otf ]

在这种情况下，例如：

\documentclass[a4paper]{article}
\usepackage{fontspec,kantlipsum}
% font features set according to the copies of the fonts I have
\setmainfont{IMFePIrm29P.ttf}[% fontspec complains about the features not being available for sc and trying to deactivate them makes it complain again about a lack of the deactivated-feature - pah! this thing is noisy!
  ItalicFont = IMFePIit29P.ttf,
  SmallCapsFont = IMFePIsc29P.ttf,
  StylisticSet=1,
  WordSpace = 1.2,
  Ligatures = Rare,
  Style = Historic,
]
\begin{document}

  This is 10pt upright.

  \textit{This is 10pt italics.}

  \textsc{This is 10pt small-caps.}

  {\itshape\large This is 12pt italics.

    \scshape This is 12pt small-caps.

    \upshape This is 12pt upright.
  }

  This is 10pt upright.

  \kant[1]

  {\itshape \kant[2]}

  {\small\itshape \kant[3]}

  {\large \kant[4]}

\end{document}

生产

例如，您可以使用\newfontfamily\commandname{...}它来定义要用于特殊效果的字体。这可以像文本的主文档字体一样定义。或者它可以是装饰字体或专业字体。

例如：

\newfontfamily\imflowers{IMFeFlow1.ttf}

请允许我说

  {\imflowers ABCDEFGHIJKLMNOPQRSTUVWXYZ abc}

如果我想用一些印刷装饰品来说明文本：

[如果字体是为系统安装的，不需要通过文件名调用，那么这一切都会变得更容易。事实上，我仍然觉得在 pdfLaTeX 中更容易！至少在那里，如果我想使用它，我确实有完全的控制权。]

随意更改字体或字体特征

要更改文档任意部分的字体形状，可以使用

• \itshape所有文字，直至另行通知都将以斜体显​​示。
• \scshape除非另行通知，所有文字均将采用小写字母。
• \normalfont返回默认字体形状（和粗细）。

例如：

\documentclass[a4paper]{article}
\usepackage{fontspec,kantlipsum}
% font features set according to the copies of the fonts I have
\setmainfont{IMFePIrm29P.ttf}[% fontspec complains about the features not being available for sc and trying to deactivate them makes it complain again about a lack of the deactivated-feature - pah! this thing is noisy!
  ItalicFont = IMFePIit29P.ttf,
  SmallCapsFont = IMFePIsc29P.ttf,
  StylisticSet=1,
  WordSpace = 1.2,
  Ligatures = Rare,
  Style = Historic,
]
\begin{document}

   \itshape \kant[1]

   \scshape \kant[2]

   \normalfont \kant[3]

\end{document}

您还可以使用花括号来限制形状命令的范围，如上面的示例所示。

Regular shape.

{\itshape Italics here.

More italics.

Yet more italics.}

Regular shape again.

类似地，标准尺寸命令的工作方式相同，也可能通过使用花括号或类似方法分组来进行限制。

\documentclass[a4paper]{article}
\usepackage{fontspec,kantlipsum}
% font features set according to the copies of the fonts I have
\setmainfont{IMFePIrm29P.ttf}[% fontspec complains about the features not being available for sc and trying to deactivate them makes it complain again about a lack of the deactivated-feature - pah! this thing is noisy!
  ItalicFont = IMFePIit29P.ttf,
  SmallCapsFont = IMFePIsc29P.ttf,
  StylisticSet=1,
  WordSpace = 1.2,
  Ligatures = Rare,
  Style = Historic,
]
\begin{document}

   \tiny As is own in the writings of Aristotle, the things in themselves (and it remains a mystery why this is the case) are a representation of time.

   \scriptsize As is own in the writings of Aristotle, the things in themselves (and it remains a mystery why this is the case) are a representation of time.

   \footnotesize As is own in the writings of Aristotle, the things in themselves (and it remains a mystery why this is the case) are a representation of time.

   \small As is own in the writings of Aristotle, the things in themselves (and it remains a mystery why this is the case) are a representation of time.

   \normalsize As is own in the writings of Aristotle, the things in themselves (and it remains a mystery why this is the case) are a representation of time.

   \large As is own in the writings of Aristotle, the things in themselves (and it remains a mystery why this is the case) are a representation of time.

   \Large As is own in the writings of Aristotle, the things in themselves (and it remains a mystery why this is the case) are a representation of time.

   \LARGE As is own in the writings of Aristotle, the things in themselves (and it remains a mystery why this is the case) are a representation of time.

   \Huge As is own in the writings of Aristotle, the things in themselves (and it remains a mystery why this is the case) are a representation of time.

\end{document}

当然，您也可以使用其他fontspec命令来调整字体启用的功能，例如关闭Rare连字。但是，您可能不希望这样做，因为这会使排版不一致。（当然，除非您正在撰写此类排版功能，这将是另一回事，此类插图可能会很有用。）