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#+LaTeX_CLASS: beamer
#+LaTeX_CLASS_OPTIONS: [presentation]
#+BEAMER_FRAME_LEVEL: 1
#+BEAMER_HEADER_EXTRA: \usetheme{Warsaw}\usecolortheme{default}\useoutertheme{infolines}\setbeamercovered{transparent}
#+COLUMNS: %45ITEM %10BEAMER_env(Env) %10BEAMER_envargs(Env Args) %4BEAMER_col(Col) %8BEAMER_extra(Extra)
#+PROPERTY: BEAMER_col_ALL 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 :ETC
#+LaTeX_CLASS: beamer
#+LaTeX_CLASS_OPTIONS: [presentation]
#+LaTeX_HEADER: \usepackage[english]{babel} \usepackage{ae,aecompl}
#+LaTeX_HEADER: \usepackage{mathpazo,courier,euler} \usepackage[scaled=.95]{helvet}
#+LaTeX_HEADER: \usepackage{listings}
#+LaTeX_HEADER:\lstset{language=Python, basicstyle=\ttfamily\bfseries,
#+LaTeX_HEADER: commentstyle=\color{red}\itshape, stringstyle=\color{darkgreen},
#+LaTeX_HEADER: showstringspaces=false, keywordstyle=\color{blue}\bfseries}
#+TITLE:
#+AUTHOR: FOSSEE
#+EMAIL: info@fossee.in
#+DATE: 2010-10-11 Mon
#+DESCRIPTION:
#+KEYWORDS:
#+LANGUAGE: en
#+OPTIONS: H:3 num:nil toc:nil \n:nil @:t ::t |:t ^:t -:t f:t *:t <:t
#+OPTIONS: TeX:t LaTeX:nil skip:nil d:nil todo:nil pri:nil tags:not-in-toc
*
#+begin_latex
\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_latex
* Objectives
At the end of this tutorial, you will be able to,
- Save plots using ``savefig()`` function.
- Save plots in different formats.
* Creating a basic plot
Plot a sine wave from -3pi to 3pi.
#+begin_src python
In []: x = linspace(-3*pi,3*pi,100)
In []: plot(x, sin(x))
#+end_src
* savefig()
** savefig() - to save plots
: syntax: savefig(fname)
** example
*** savefig('/home/fossee/sine.png')
- file sine.png saved to the folder /home/fossee
- .png - file type
* More on savefig()
** Recall
- .png - file type
** File types supported
*** .pdf - PDF(Portable Document Format)
*** .ps - PS(Post Script)
*** .eps - Encapsulated Post Script
~to be used with~ LaTeX ~documents~
*** .svg - Scalable Vector Graphics
~vector graphics~
*** .png - Portable Network Graphics
~supports transparency~
* Question 1
Save the sine plot in the format EPS which can be embedded in LaTeX documents.
* Question 2
Save the sine plot in PDF, PS and SVG formats.
* Summary
In this tutorial, we have learnt to –
- Save plots using the ``savefig()`` function.
- Save the plots in differnt formats.
- pdf
- ps
- png
- svg
- eps
- Locate files in the file system.
* Evaluation
1. Which command is used to save a plot.
- saveplot()
- savefig()
- savefigure()
- saveplt()
2. ``savefig('sine.png')`` saves the plot in,
- The root directory ``/`` (on GNU/Linux, Unix based systems),
``c:\`` (on windows).
- Will result in an error as full path is not supplied.
- The current working directory.
- Predefined directory like ``/documents``.
* Solutions
1. savefig()
2. The current working directory
*
#+begin_latex
\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_latex
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