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% Created 2011-05-19 Thu 13:28
\documentclass[presentation]{beamer}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{fixltx2e}
\usepackage{graphicx}
\usepackage{longtable}
\usepackage{float}
\usepackage{wrapfig}
\usepackage{soul}
\usepackage{textcomp}
\usepackage{marvosym}
\usepackage{wasysym}
\usepackage{latexsym}
\usepackage{amssymb}
\usepackage{hyperref}
\tolerance=1000
\usepackage[english]{babel} \usepackage{ae,aecompl}
\usepackage{mathpazo,courier,euler} \usepackage[scaled=.95]{helvet}
\usepackage{listings}
\lstset{language=Python, basicstyle=\ttfamily\bfseries,
commentstyle=\color{red}\itshape, stringstyle=\color{darkgreen},
showstringspaces=false, keywordstyle=\color{blue}\bfseries}
\providecommand{\alert}[1]{\textbf{#1}}
\title{}
\author{FOSSEE}
\date{2010-10-11 Mon}
\usetheme{Warsaw}\usecolortheme{default}\useoutertheme{infolines}\setbeamercovered{transparent}
\begin{document}
\begin{frame}
\begin{center}
\vspace{12pt}
\textcolor{blue}{\huge Saving Plots}
\end{center}
\vspace{18pt}
\begin{center}
\vspace{10pt}
\includegraphics[scale=0.95]{../images/fossee-logo.png}\\
\vspace{5pt}
\scriptsize Developed by FOSSEE Team, IIT-Bombay. \\
\scriptsize Funded by National Mission on Education through ICT\\
\scriptsize MHRD,Govt. of India\\
\includegraphics[scale=0.30]{../images/iitb-logo.png}\\
\end{center}
\end{frame}
\begin{frame}
\frametitle{Objectives}
\label{sec-2}
At the end of this tutorial, you will be able to,
\begin{itemize}
\item Save plots using ``savefig()`` function.
\item Save plots in different formats.
\end{itemize}
\end{frame}
\begin{frame}
\frametitle{Pre-requisite}
\label{sec-3}
Spoken tutorial on -
\begin{itemize}
\item Using plot interactively.
\end{itemize}
\end{frame}
\begin{frame}[fragile]
\frametitle{Creating a basic plot}
\label{sec-4}
Plot a sine wave from -3pi to 3pi.
\lstset{language=Python}
\begin{lstlisting}
In []: x = linspace(-3*pi,3*pi,100)
In []: plot(x, sin(x))
\end{lstlisting}
\end{frame}
\begin{frame}[fragile]
\frametitle{savefig()}
\label{sec-5}
\begin{itemize}
\item savefig() - to save plots
\label{sec-5_1}%
\begin{verbatim}
syntax: savefig(fname)
\end{verbatim}
\item example
\label{sec-5_2}%
\begin{itemize}
\item savefig('/home/fossee/sine.png')\\
\label{sec-5_2_1}%
\begin{itemize}
\item file sine.png saved to the folder /home/fossee
\item .png - file type
\end{itemize}
\end{itemize} % ends low level
\end{itemize} % ends low level
\end{frame}
\begin{frame}
\frametitle{More on savefig()}
\label{sec-6}
\begin{itemize}
\item Recall\\
\label{sec-6_1}%
\begin{itemize}
\item .png - file type
\end{itemize}
\item File types supported
\label{sec-6_2}%
\begin{itemize}
\item .pdf - PDF(Portable Document Format)\\
\label{sec-6_2_1}%
\item .ps - PS(Post Script)\\
\label{sec-6_2_2}%
\item .eps - Encapsulated Post Script\\
\label{sec-6_2_3}%
\verb~to be used with~ \LaTeX{} \verb~documents~
\item .svg - Scalable Vector Graphics\\
\label{sec-6_2_4}%
\verb~vector graphics~
\item .png - Portable Network Graphics\\
\label{sec-6_2_5}%
\verb~supports transparency~
\end{itemize} % ends low level
\end{itemize} % ends low level
\end{frame}
\begin{frame}
\frametitle{Exercise 1}
\label{sec-7}
Save the sine plot in the format EPS which can be embedded in \LaTeX{} documents.
\end{frame}
\begin{frame}
\frametitle{Exercise 2}
\label{sec-8}
Save the sine plot in PDF, PS and SVG formats.
\end{frame}
\begin{frame}
\frametitle{Summary}
\label{sec-9}
In this tutorial, we have learnt to –
\begin{itemize}
\item Save plots using the ``savefig()`` function.
\item Save the plots in differnt formats.
\begin{itemize}
\item pdf
\item ps
\item png
\item svg
\item eps
\end{itemize}
\item Locate files in the file system.
\end{itemize}
\end{frame}
\begin{frame}
\frametitle{Evaluation}
\label{sec-10}
\begin{enumerate}
\item Which command is used to save a plot.
\begin{itemize}
\item saveplot()
\item savefig()
\item savefigure()
\item saveplt()
\end{itemize}
\item ``savefig(`sine.png')`` saves the plot in,
\begin{itemize}
\item The root directory ``/`` (on GNU/Linux, Unix based systems),
``c:\`` (on windows).
\item Will result in an error as full path is not supplied.
\item The current working directory.
\item Predefined directory like ``/documents``.
\end{itemize}
\end{enumerate}
\end{frame}
\begin{frame}
\frametitle{Solutions}
\label{sec-11}
\begin{enumerate}
\item savefig()
\item The current working directory
\end{enumerate}
\end{frame}
\begin{frame}
\begin{block}{}
\begin{center}
\textcolor{blue}{\Large THANK YOU!}
\end{center}
\end{block}
\begin{block}{}
\begin{center}
For more Information, visit our website\\
\url{http://fossee.in/}
\end{center}
\end{block}
\end{frame}
\end{frame}
\end{document}
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