如何避免 wrapfig 中不必要的额外空格

Question

正如之前评论的那样，\\图像和标题之间是错误的，应该是空白行或等效的\par。

重置失败wrapfig通常是因为第一个段落在组内开始，而图形是在组外指定的。通常这很容易避免，但在这里，您的第一个段落是节标题，因此更容易\mbox在标题前放置一个假的空段落。无论哪种情况，都需要手动调整剪切的大小，因为 wrapfig 只是假设正常段落，而不考虑标题的较大间距。

您的示例远非简约，并且使用了未提供的图像，因此我将其删减了一点

\documentclass[paper=7in:10in,11pt,pagesize=pdftex,openright,headings=twolinechapter,chapterprefix=true]{scrbook}

\usepackage{graphicx}
\usepackage{wrapfig}
\usepackage{fontspec}
\usepackage{xcolor}

\setmainfont[Ligatures={Common,TeX}, Numbers={OldStyle}]{Palatino Linotype}
%\KOMAoptions{DIV=last}   % goofy KOMA requirement whenever you change leading
\addtokomafont{footnote}{\footnotesize\fontspec[Ligatures=TeX]{Alegreya Sans}}
\deffootnote{1.5em}{1em}{% modified example from page 83
  \makebox[1.5em][l]{\textsuperscript{\thefootnotemark}}}

\definecolor{skyblue}{rgb}{0.53, 0.81, 0.92}
\definecolor{shadecolor}{rgb}{0.95, 0.95, 0.95}

\makeindex

%page is 7 x 10.  With these margins the printed area
%is 5.75 inches by 9 inches.
\usepackage[inner=0.75in,outer=0.50in,top=0.75in, bottom=0.75in, footnotesep=.3in, footskip=.4in]{geometry}

% why set these after geometry???
%Page size settings
\pdfpagewidth=\paperwidth
\pdfpageheight=\paperheight

% these will force bad page breaks
\widowpenalty10000
\clubpenalty10000

\hyphenation{}

\addtokomafont{section}{\raggedright}
\addtokomafont{subsection}{\raggedright}
\setcounter{secnumdepth}{0}

\setlength{\emergencystretch}{15pt}

    

%\intextsep = 0pt

\newcommand{\rightimage}[4][]{%
  \begin{wrapfigure}[#1]{r}{#4in}%
  \noindent\includegraphics[width=#4in]{example-image-1x1.png}\par
  \centering\emph{#3}%
  \end{wrapfigure}%
}


%control whether extra vertical space is distributed between paragraphs
%either raggedbottom or flushbottom
\raggedbottom




%must use WITHOUT gap to next paragraph so that the noindent works.
% would be better to use \@afterheading like section commands 
%which never use \noindent
\newcommand{\setOffPara}[0]{%
    \begin{center}%
    \line(1,0){50}%
    \end{center}%
    \noindent}


  

\begin{document}


Dave Campbell Purcell, second son of Margaret and David Purcell,
always maintained a strong interest in our David family
history---especially in his later life. In the 1960s he and his wife
Elizabeth (``Betty''), made at least one trip from their home in Maine
to visit their cousins in the Wallace, Gulf Shore, Fox Harbour areas
of northern Nova Scotia.  I have several letters that Dave had written
to my mother during those years. In later years, I corresponded with
him on all things relating to the David family. He was particularly
interested in any effort to learn more about the early family members
who came to North America from Europe. Several times Mary Lee and I
visited with Dave and Betty at their home in Maine. They were always
charming and welcoming – Betty interested to know about our son and
daughter, and Dave, his desk covered with notes, charts, and
printouts, eager to discuss any new discoveries on the family history
front. Dave died January 8th, 2004 at the age of eighty-eight and
Betty on July 10, 2014.

\rightimage[12]{ch19-DavidBettyPurcell.jpg}{Dave \& Betty Purcell   ca 1998}{2}
\mbox{}

\vspace*{-1.2\baselineskip}

\section{Dave Campbell Purcell}


Dave Campbell Purcell, second son of Margaret and David Purcell,
always maintained a strong interest in our David family
history---especially in his later life. In the 1960s he and his wife
Elizabeth (``Betty''), made at least one trip from their home in Maine
to visit their cousins in the Wallace, Gulf Shore, Fox Harbour areas
of northern Nova Scotia.  I have several letters that Dave had written
to my mother during those years. In later years, I corresponded with
him on all things relating to the David family. He was particularly
interested in any effort to learn more about the early family members
who came to North America from Europe. Several times Mary Lee and I
visited with Dave and Betty at their home in Maine. They were always
charming and welcoming – Betty interested to know about our son and
daughter, and Dave, his desk covered with notes, charts, and
printouts, eager to discuss any new discoveries on the family history
front. Dave died January 8th, 2004 at the age of eighty-eight and
Betty on July 10, 2014.

Dave and Betty Purcell had three children: David, Joanne and
Elizabeth. In early December, 2017, I was able to establish contact
with Joanne and her husband Bob Flynn. They live in
Vermont. Throughout the spring of 2018 Joanne and I got acquainted
through emails and phone chats. At one point I asked her if she had
some special memories of her father that she could share with me. This
is a part of her reply:

My father and I were very close; I have so many memories: spending
endless house at his elbow in his workshop watching him explore,
create, take apart, put together. Electrical . . . mechanical, didn't
matter, he could fix anything---all the while teaching, explaining. We
once even took apart a television set so he could describe how it
worked! I can still envision the large picture tube, something that
doesn't even exist anymore. I remember his infectious laugh, his
wonderful sense of humour . . . and his pranks . . . he loved to play
harmless pranks. One of the best was the Halloween he put a vacuum
cleaner under our porch so that when the Trick or Treaters stepped up
to the door, the machine would turn on. Only a few ran away!

Dave Campbell Purcell, second son of Margaret and David Purcell,
always maintained a strong interest in our David family
history---especially in his later life. In the 1960s he and his wife
Elizabeth (``Betty''), made at least one trip from their home in Maine
to visit their cousins in the Wallace, Gulf Shore, Fox Harbour areas
of northern Nova Scotia.  I have several letters that Dave had written
to my mother during those years. In later years, I corresponded with
him on all things relating to the David family. He was particularly
interested in any effort to learn more about the early family members
who came to North America from Europe. Several times Mary Lee and I
visited with Dave and Betty at their home in Maine. They were always
charming and welcoming – Betty interested to know about our son and
daughter, and Dave, his desk covered with notes, charts, and
printouts, eager to discuss any new discoveries on the family history
front. Dave died January 8th, 2004 at the age of eighty-eight and
Betty on July 10, 2014.

Dave and Betty Purcell had three children: David, Joanne and
Elizabeth. In early December, 2017, I was able to establish contact
with Joanne and her husband Bob Flynn. They live in
Vermont. Throughout the spring of 2018 Joanne and I got acquainted
through emails and phone chats. At one point I asked her if she had
some special memories of her father that she could share with me. This
is a part of her reply:

My father and I were very close; I have so many memories: spending
endless house at his elbow in his workshop watching him explore,
create, take apart, put together. Electrical . . . mechanical, didn't
matter, he could fix anything---all the while teaching, explaining. We
once even took apart a television set so he could describe how it
worked! I can still envision the large picture tube, something that
doesn't even exist anymore. I remember his infectious laugh, his
wonderful sense of humour . . . and his pranks . . . he loved to play
harmless pranks. One of the best was the Halloween he put a vacuum
cleaner under our porch so that when the Trick or Treaters stepped up
to the door, the machine would turn on. Only a few ran away!

\end{document}

或者，如果你只想将图像剪切到段落中，请使用 wrapfig后标题，并进行类似的空间调整。

原始答案

您没有提供任何示例，顶部的空间不是预期的，我无法重现。无论如何，我在这里进行了更正，导致图像突出于文本之上。

大部分底部的空间是由强制的，\\它永远不应该在段落末尾使用，并导致 TeX 以 badness 10000 警告未满的框（即强制空行）在这种情况下，即使没有，\\如果需要紧密配合，也可以使插入少一行。

\documentclass{article}

\usepackage{wrapfig}
\usepackage{graphicx}

\begin{document}

\begin{wrapfigure}{R}{2in}
% I would not expect any space at the top  but
\vspace{-\baselineskip}
\includegraphics[width=2in]{example-image-1x1.png}%
% never use \\ at end of paragraph\\
% TeX will give badness 10000 warning
\vspace{-\baselineskip}
\end{wrapfigure}
Zzzz zzz zzz zzz zzz zzz zzz zzz zzz zzz.
Zabc abc abc abc abc abc abc abc abc abc.
Zzzz zzz zzz zzz zzz zzz zzz zzz zzz zzz.
Zabc abc abc abc abc abc abc abc abc abc.
Zzzz zzz zzz zzz zzz zzz zzz zzz zzz zzz.
Zabc abc abc abc abc abc abc abc abc abc.
Zzzz zzz zzz zzz zzz zzz zzz zzz zzz zzz.
Zabc abc abc abc abc abc abc abc abc abc.
Zzzz zzz zzz zzz zzz zzz zzz zzz zzz zzz.
Zabc abc abc abc abc abc abc abc abc abc.
Zzzz zzz zzz zzz zzz zzz zzz zzz zzz zzz.
Zabc abc abc abc abc abc abc abc abc abc.
Zzzz zzz zzz zzz zzz zzz zzz zzz zzz zzz.
Zabc abc abc abc abc abc abc abc abc abc.
Zzzz zzz zzz zzz zzz zzz zzz zzz zzz zzz.
Zabc abc abc abc abc abc abc abc abc abc.
Zzzz zzz zzz zzz zzz zzz zzz zzz zzz zzz.
Zabc abc abc abc abc abc abc abc abc abc.
Zzzz zzz zzz zzz zzz zzz zzz zzz zzz zzz.
Zabc abc abc abc abc abc abc abc abc abc.
Zzzz zzz zzz zzz zzz zzz zzz zzz zzz zzz.
Zabc abc abc abc abc abc abc abc abc abc.
Zzzz zzz zzz zzz zzz zzz zzz zzz zzz zzz.
Zabc abc abc abc abc abc abc abc abc abc.
\end{document}

Answer 1