zernike 0.0.6

Python code for Zernike polynomials

Zernike

Python code for Zernike polynomials. This module was part of enzpy but will be further developed here instead.

Example

import numpy as np
import matplotlib.pyplot as plt
from zernike import RZern

cart = RZern(6)
L, K = 200, 250
ddx = np.linspace(-1.0, 1.0, K)
ddy = np.linspace(-1.0, 1.0, L)
xv, yv = np.meshgrid(ddx, ddy)
cart.make_cart_grid(xv, yv)

c = np.zeros(cart.nk)
plt.figure(1)
for i in range(1, 10):
    plt.subplot(3, 3, i)
    c *= 0.0
    c[i] = 1.0
    Phi = cart.eval_grid(c, matrix=True)
    plt.imshow(Phi, origin='lower', extent=(-1, 1, -1, 1))
    plt.axis('off')

plt.show()

Installation

Linux

python setup.py develop --user

Windows

• You should first install the following requirements:
  • Anaconda for Python 3. This includes Python as well as some necessary scientific libraries.
  • Git. This is necessary for the automatic version numbering of this package. Also, make sure you choose Git from the command line and also 3rd-party software in Adjusting your PATH environment.
• Clone this repository using Git. From any folder in File Explorer, right-click and hit Git Bash here. Paste git clone https://github.com/jacopoantonello/zernike and hit enter. Do not use GitHub's Download ZIP button above, as the installation script will not work in that case.
• Finally, double-click on install.bat.

Run tests

cd tests
nosetests -v -x --pdb *.py