How can I draw a empty large arrow like this (for example from (0,0) to (2,-2))?
The only arrow which I am able to draw is the simple vertical/horizontal thin arrow:
\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{pgfplots}
\pgfplotsset{width=10cm,compat=1.15}
\begin{document}
\begin{center}
\begin{tikzpicture}
\draw[->,line width=1pt, rotate=45] (0,0)-|(2,-2);
\end{tikzpicture}
\end{center}
\end{document}
Thank you so much for your time.



fitlibrary), but only one. however, in example above is determined west side of shape, and with rotate its direction. for details see section 67.5 Arrow Shapes in pgf & tikz manual, page 717. – Zarko Dec 05 '17 at 18:09