adding zernike test file

bin/test_zernike.py

+import numpy as np
+from pykat.utilities.maps import zernikemap
+import random
+import pykat
+import pylab
+import os
+
+r = 0.0125
+size = np.array([200, 200])
+
+pylab.figure()
+legends = []
+for n in xrange(0,3):
+	for m in range(-n, n+1):
+		legends.append("%i,%i" % (m,n))
+		
+		zmap = zernikemap('dsad', size, 2*r / size, 2*r, 1e-7)
+		zmap.setZernike(m, n, 10)		
+		zmap.type = 'phase reflection'
+		zmap.write_map("zernike.map")
+
+		kat = pykat.finesse.kat()
+
+		kat.parseCommands("""
+		l l1 1 0 n0
+		m m1 0.99 0.01 0 n0 n1
+		s s1 12 n1 n2
+		m m2 0.999 0.001 0 n2 n3
+		attr m1 Rc -20
+		attr m2 Rc 20
+
+		cav c1 m1 n1 m2 n2
+
+		pd refl n0
+		pd circ n1
+		pd tran n3
+		bp wz x w n2
+		trace 2
+
+		yaxis re:im
+		map m2 %s/zernike.map
+
+		maxtem 4
+		xaxis m2 phi lin -10 190 2000
+		""" %  os.path.realpath(os.path.curdir))
+
+		out = kat.run(printerr=1)
+
+		print out["wz"][0]
+		
+		pylab.semilogy(out.x, out["tran"])
+
+pylab.legend(legends)
+pylab.xlim(min(out.x), max(out.x))
+pylab.show()