Python modules to control piezoelectric actuators.  Mostly a set of
convenient wrappers around pycomedi calls for keeping track of the
relevant calibration constants.  To get a feel for an `official' set
of calibration constants, you can take a peek at veeco_header, which
is the beginning of a saved Veeco NanoScope image file.  It lists the
parameters used by the NanoScope during imaging.

== Installation ==

Non-Python dependencies (Debian packagename):
  easy_install  (python-setuptools)
  Numpy         (python-numpy)
  Scipy         (python-scipy)
  Matplotlib    (python-matplotlib)

Piezo uses `setuptools' for installation.  Setuptools is basically an
extension of the standard Python distutils package which supports
automatic package dependency tracking.  The installation procedure
should be (on Debian-esque systems)
  # apt-get intall python-setuptools python-numpy python-scipy python-matplotlib
  # easy_install -f http://www.physics.drexel.edu/~wking/code/python/ piezo

There is one speedbump you might run into:
  * an outdated version of easy_install (see ez_setup.py section)

** ez_setup.py

This package bundles
  http://peak.telecommunity.com/dist/ez_setup.py
to bootstrap setuputils installation on your machine (if neccessary).

If the bootstrapping doesn't work, you may need to install a current version
of setuptools.  On Debian-based systems `apt-get install python-setuptools'.
Once you have *some* version of setuptools, upgrade with
  easy_install -U setuptools

For more information see
  http://peak.telecommunity.com/DevCenter/EasyInstall
  http://peak.telecommunity.com/DevCenter/setuptools#what-your-users-should-know


== Usage ==

See piezo/z_piezo_utils.py for some simple examples.


== Licence ==

This project is distributed under the GNU General Public Licence
Version 3 or greater.  See LICENSE.


== Author ==

W. Trevor King
wking@drexel.edu
Copyright 2007, 2008