Tex

\documentclass[11pt,a4paper,twoside,openright]{report}

\usepackage{tikz}
\usepackage{algorithm}
\usepackage{algorithmic}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{color}
\usepackage{graphicx}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{array}
\usepackage{verbatim}
\usepackage{caption}
\usepackage{epstopdf}

\usepackage{caption}
\usepackage{subcaption}
\usepackage{tcolorbox}

\usepackage{tikz}
\usepackage{pgfplots}

\begin{document}
 \begin{figure}
\centering
\newlength\figureheight
\newlength\figurewidth
\setlength\figureheight{6cm}
\setlength\figurewidth{6cm}
\input{/home/stefano/mysphere.tikz}
\caption{A plot of a sphere}
\label{fig:sphere}
\end{figure}
\end{document}