tables
I want to draw a double cline in a table where the first column is multirow
With double \hline I can draw a full double horizontal line but double \cline{i-j} seems to have the same effect with single \cline.
Is there any other special command to do that?
Thank you
Both problems are related. \cline has to support several \clines in a row, e.g.:
\documentclass{article}
\begin{document}
\begin{tabular}{*{5}{c}}
1 & 2 & 3 & 4 & 5\\
\cline{1-1}\cline{3-3}\cline{5-5}
A & B & C & D & E
\end{tabular}
\end{document}
Therefore \cline cannot move down like \hline, the definition of \cline is (latex.ltx):
\def\cline#1{\@cline#1\@nil}
\def\@cline#1-#2\@nil{%
\omit
\@multicnt#1%
\advance\@multispan\m@ne
\ifnum\@multicnt=\@ne\@firstofone{&\omit}\fi
\@multicnt#2%
\advance\@multicnt-#1%
\advance\@multispan\@ne
\leaders\hrule\@height\arrayrulewidth\hfill
\cr
\noalign{\vskip-\arrayrulewidth}}
In the last step \cline moves back to the original vertical position.
But the vertical space for the line can be added after the \clines, e.g.:
\cline{...}\cline{...}\noalign{\vskip\arrayrulewidth}
Applied to your example, it can be added to macro \whline. This fixes also the problem with \cellcolor:
\documentclass{article}
\usepackage{array}
\usepackage{colortbl}
\begin{document}
\newcolumntype{I}{!{\vrule width 3pt}}
\newlength\savedwidth
\newcommand\whline[1]{%
\noalign{%
\global\savedwidth\arrayrulewidth\global\arrayrulewidth 6pt%
}%
\cline{#1}%
\noalign{\vskip\arrayrulewidth}%
\noalign{\global\arrayrulewidth\savedwidth}%
}
\begin{tabular}{|cIc|c|}\hline
A & B & C \\ \hline
X & \cellcolor{red}Y & Z \\ \whline{1-3}
\cellcolor{green}100 & 10 & 1 \\ \hline
\end{tabular}
\end{document}
If you only want the bottom half of the double line to extend to the first column you can use
\documentclass{article}
\usepackage{hhline}
\begin{document}
\begin{tabular}{r|l|}
\hhline{~|-}
& hexadecimal \\
& octal \\ \cline{2-2}
& binary \\
\hhline{-:=}
\multicolumn{1}{|r|}{1984} & decimal \\
\hline
\end{tabular}
\end{document}
Best Answer
AFAIK the
\clinedoes not add vertical space by itself, therefore the two are just printed over each other. Thebooktabspackage, which I can recommend greatly in general for all tables, defines therefore the\morecmidrulesmacro:However, the
booktabsmanual says that double lines are evil and should not be used at all....