1

Considering this MWE, I found that the hyperlink of cross-reference \Cref{algo1} always navigates to the algorithm bottom where caption is printed when not loading ruled option.

My question is how to force cross-reference hyperlink navigate to the top of algorithm?

\RequirePackage{luatex85}
\documentclass{article}

\usepackage{varioref}
\usepackage{hyperref}
\usepackage{cleveref}
\usepackage{lipsum}
\usepackage[ruled]{algorithm2e}
\Crefname{algocf}{Algorithm}{Algorithms}

\begin{document}
    \Cref{algo1}
    \lipsum[1-5]
    \begin{algorithm}
        Some\;
        Algorithm\;
        \caption{some caption}\label{algo1}
    \end{algorithm}
\end{document}
Werner
  • 603,163
Diaa
  • 9,599

1 Answers1

1

Barring a persistent warning, the following solution works by inserting a duplicate hyperlink destination at the top of the ruled caption's predisplay:

\documentclass{article}

\usepackage{lipsum}

\usepackage{hyperref,cleveref}
\usepackage[ruled]{algorithm2e}

\Crefname{algocf}{Algorithm}{Algorithms}

\makeatletter
\let\old@algocf@pre@ruled\@algocf@pre@ruled
\renewcommand{\@algocf@pre@ruled}{%
  \Hy@raisedlink{\hyper@anchorstart{algocf.\thealgocf}\hyper@anchorend}%
  \old@algocf@pre@ruled}
\makeatother

\begin{document}

\Cref{algo1}
\lipsum[1-5]

\begin{algorithm}
  Some\;
  Algorithm\;
  \caption{some caption\label{algo1}}
\end{algorithm}

\end{document}
Werner
  • 603,163
  • Many thanks for your answer, but I found that the counter of cross-reference has a number of 1, while the algorithm environment prints a counter of value 2. So, how can I reset the environment counter to be 1? I tried your previous solution, but it didn't help. – Diaa Dec 06 '16 at 18:31
  • @DiaaAbidou: I see. I'll work on this later today. – Werner Dec 06 '16 at 18:32
  • I appreciate your help. – Diaa Dec 06 '16 at 18:33
  • I found another issue; loading hypcap spoiled the navigation of figures cross-references to their tops as previously done by loading caption package. So, how can I fix this also for figure environment? – Diaa Dec 07 '16 at 01:59
  • @DiaaAbidou: The best I can come up with yields a persistent warning about a duplicate destination identifier. It ensures a correct hyperlink jump to the top of the algorithm, and you can ignore the warning. It also doesn't need hypcap anymore. – Werner Dec 07 '16 at 05:17