Mid-arrow tip in tikz-cd

Question

I would like to place an arrow tip in the middle of an arrow, like one does in TikZ with markings, but in a tikz-cd diagram. The documentation seems not to tell me anything about how to achieve this. I thought of using \to as a description. I haven't tried that yet, and it may work fine, but it seems cumbersome to use a label description to achieve a mid-arrow tip. Is there a more semantically proper way to do this?

Answer 1

tikz-cd is still Tikz, so you can use \tikzset to set up a style for the middle arrow. Of course, this means that markings works as well.

Output

Code

\documentclass[margin=10pt]{standalone}
\usepackage{tikz-cd}

\usetikzlibrary{decorations.markings, arrows.meta}

\tikzset{
    marrow/.style={decoration={markings,mark=at position 0.5 with {\arrow{#1}}}, postaction=decorate}
}

\begin{document}
\begin{tikzcd}
a \ar[rrr, marrow=>] & & & b \\[2mm]
c \ar[rrr, -Latex, marrow=Latex] & & & d
\end{tikzcd}
\end{document}