3 pictures in one with special layout

Question

Probably it is very easy but i don't know how to do it. I want to put 3 images one on the left and the other 2 on the right. As for the 2 on the right i want them to be one above the other

thanks for the help

\begin{figure}[h!] 
\begin{subfigure}{0.5\textwidth} 
\includegraphics[width=0.9\columnwidth, height = 10 cm]{Images/Ch3/hwinct3.jpg} 
\hspace{\fill} 
\caption{} 
\end{subfigure} 
\begin{subfigure}{0.5\textwidth} 
\hspace{\fill} 
\begin{subfigure}{0.9\textwidth} 
\includegraphics[width=1.1\columnwidth]{Images/Ch3/plane1.pn‌​g} 
\caption{} 
\end{subfigure} 
\begin{subfigure}{0.6\textwidth} 
\includegraphics[width=1\columnwidth, height = 3 cm]{Images/Ch3/prova.png} 
\hspace{\fill} 
\caption{} 
\end{subfigure} 
\end{subfigure} 
\caption{Plane 1 measurements slots} 
\label{fig:pl1sl} 
\end{figure}

Answer 1

Putting images side by side is normally done using minipage, and on top of each other can be done by just seeing to that they occupy enough space to end up on different lines. It is not clear from the question if there should be individual captions or not. This solution should work in most cases. To get the spacing right for your pictures try changing the scaling factors.

\documentclass{article}
\usepackage{graphicx}
\begin{document}

\begin{figure}[htb]
  \begin{minipage}[b]{0.7\linewidth}
    \centering
    \includegraphics[width=0.89\linewidth]{example-image-a}
    \caption{Picture A}
  \end{minipage}%
  \begin{minipage}[b]{0.3\linewidth}
    \centering
    \includegraphics[width=0.8\linewidth]{example-image-b}
    \caption{Picture B}
    \vspace*{\baselineskip} %% Space between small pictures
    \includegraphics[width=0.8\linewidth]{example-image-c}    
    \caption{Picture C}
  \end{minipage}
\end{figure}

\begin{figure}[htb]
  \begin{minipage}[b]{0.7\linewidth}
    \centering
    \includegraphics[width=0.8\linewidth]{example-image-a}
  \end{minipage}%
  \begin{minipage}[b]{0.3\linewidth}
    \centering
    \includegraphics[width=0.85\linewidth]{example-image-b}
    \hbox to \linewidth{} %% Space between small pictures
    \includegraphics[width=0.85\linewidth]{example-image-c}    
  \end{minipage}
  \caption{One caption for all pictures.}
\end{figure}

\end{document}

Edit

To have one common caption for all images and also let each one have its own caption the packets subfloats, subfig or subcaption can be used. Below is an example using subcaption where the minipage used earlier is replaced buy the subfigure environment.

\documentclass{article}
\usepackage{graphicx}
\usepackage{subcaption}
\begin{document}

\begin{figure}[htb]
  \begin{subfigure}[b]{0.7\linewidth}
    \centering
    \includegraphics[width=0.89\linewidth]{example-image-a}
    \caption{Picture A}
  \end{subfigure}%
  \begin{subfigure}[b]{0.3\linewidth}
    \centering
    \includegraphics[width=0.84\linewidth]{example-image-b}
    \caption{Picture B}
    \vspace*{\baselineskip} %% Space between small pictures
    \includegraphics[width=0.84\linewidth]{example-image-c}    
    \caption{Picture C}
  \end{subfigure}
  \caption{Common caption for all pictures}
\end{figure}

\end{document}