Module SIMION.PA

DESCRIPTION

This module is for manipulating SIMION potential array (PA/PA?) files (including creating, loading, modifying, and saving). See Appendix D-5 of the SIMION 7.0 manual for the PA file format specification.

SYNOPSIS

>>> from SIMION.PA import *
>>>
>>> #-- reading an existing array
>>> pa = PA(file = 'buncher.pa#')
>>> # print header parameters the simple way
>>> print pa.header_string()

>>> #-- creating an array from scratch
>>> pa2 = PA(nx = 100, ny = 20, symmetry = 'cylindrical')
>>> 
>>> z = 0
>>> for x in range(0, pa.nx()):
...    for y in range(0, pa.ny()):
...        inside = (x + y < 10)
...        if inside:
...            pa.point(x, y, z, 1, 5.0)  # electrode, 5V
>>> pa2.save('cone.pa#')

>>> #-- creating a magnetic field from scratch
>>> pa3 = PA(nx = 50, ny = 50, field_type = 'magnetic')
>>> z = 0
>>> for x in range(0, pa.nx()):
>>>     for y in range(0, pa.ny()):
>>>         ex = x
>>>         ey = y**2
>>>         ez = 0
>>>         pa3.field(x, y, z, ex, ey, ez)
>>> pa3.save('mag1.pa')

AUTHOR