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#+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: Savefig

#+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

* Outline

  - Saving plots.

  - Plotting in different formats.

  - Locating the file in the file system.

* 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~

* Exercise 1

  Save the sine plot in the format EPS which can be embedded in LaTeX documents.

* Solution 1

  #+begin_src python

    savefig('/home/fossee/sine.eps')

  #+end_src

* Exercise 2

  Save the sine plot in PDF, PS and SVG formats.

* Summary

  You should now be able to

  - Use ~savefig()~ function

  - Save plots in different formats

      - PDF

      - PS

      - PNG

      -	SVG

      - EPS

  - Locating the files in file system.

* Thank you!

#+begin_latex

  \begin{block}{}

  \begin{center}

  This spoken tutorial has been produced by the

  \textcolor{blue}{FOSSEE} team, which is funded by the 

  \end{center}

  \begin{center}

    \textcolor{blue}{National Mission on Education through \\

      Information \& Communication Technology \\ 

      MHRD, Govt. of India}.

  \end{center}  

  \end{block}

#+end_latex