=================================
ENVISAT Product Reader Python API
=================================

:HomePage:  http://avalentino.github.com/pyepr
:Author:    Antonio Valentino
:Contact:   antonio.valentino@tiscali.it
:Date:      10/04/2011
:Copyright: 2011, Antonio Valentino <antonio.valentino@tiscali.it>
:Version:   0.4


Introduction
============

PyEPR_ provides Python_ bindings for the ENVISAT Product Reader C API
(`EPR API`_) for reading satellite data from ENVISAT_ ESA_ (European
Space Agency) mission.

PyEPR_, as well as the `EPR API`_ for C, supports ENVISAT_ MERIS, AATSR
Level 1B and Level 2 and also ASAR data products. It provides access to
the data either on a geophysical (decoded, ready-to-use pixel samples)
or on a raw data layer. The raw data access makes it possible to read
any data field contained in a product file.

.. _PyEPR: https://github.com/avalentino/pyepr
.. _Python: http://www.python.org
.. _`EPR API`: https://github.com/bcdev/epr-api
.. _ENVISAT: http://envisat.esa.int
.. _ESA: http://earth.esa.int


Requirements
============

In order to use PyEPR it is needed that the following software are
correctly installed and configured:

* Python_ >= 2.6
* numpy_ >= 1.3.0
* `EPR API`_ >= 2.2
* a reasonably updated C compiler (build only)

.. _numpy: http://www.numpy.org
.. _gcc: http://gcc.gnu.org


Download
========

Official source tarballs can be downloads form:

    http://pypi.python.org/pypi/pyepr

Source code of development versions is available at

    https://github.com/avalentino/pyepr

To clone the git_ repository the following command can be used::

    $ git clone https://github.com/avalentino/pyepr.git

.. _git: http://git-scm.com


Installation
============

The easier way to install PyEPR_ is using tools like easy_install_, pip_::

    $ easy_install pyepr

or::

    $ easy_install -U --prefix=<TARGET DIRECTORY>

PyEPR_ can be installer from the source tarball using the following command::

    $ python setup.py install

To install PyEPR_ in a non-standard path::

    $ python setup.py install --prefix=<TARGET_PATH>

.. _easy_install: http://pypi.python.org/pypi/setuptools#using-setuptools-and-easyinstall
.. _pip: http://pypi.python.org/pypi/pip


License
=======

Copyright (C) 2011 Antonio Valentino <antonio.valentino@tiscali.it>

PyEPR is free software: you can redistribute it and/or modify
it under the terms of the `GNU General Public License`_ as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

PyEPR is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with PyEPR.  If not, see <http://www.gnu.org/licenses/>.

.. _`GNU General Public License`: http://www.gnu.org/licenses/gpl-3.0.html

