missing file in previous commit

#!/usr/bin/env python

# This is a python program that allow to maximize the focus for Noto subreflector

#who                                   when           what

#Andrea Orlati(a.orlati@ira.inaf.it)   24/01/2017     Creation

import getopt, sys

import Acspy.Common.Err

import maciErrType

import maciErrTypeImpl

import ClientErrorsImpl

import Antenna

import ACSLog

from Acspy.Clients.SimpleClient import PySimpleClient

from Acspy.Common.TimeHelper import getTimeStamp

from Acspy.Common.EpochHelper import EpochHelper

from Acspy.Common.DurationHelper import DurationHelper

import string

import string

import math

import time

import socket

import struct

from math import *

import os

def usage():

	print "subrOff [-h|--help] [-a axis] [-y val] [-z val] [-s val] [-p val]"

	print ""

	print "[-h|--help]      displays this help"

	print "[-a axis]        scu axis to be moved, currently supported Z, Y, Default Z."

	print "[-y val]         central offset of Y axis. Default 0.0"		

	print "[-z val]         central offset of Z axis. Default 0.0"

	print "[-s val]         span in millimeters. Default 40.0"

	print "[-p val]         number of samples. Default 13"

def main():

	try:

		opts, args = getopt.getopt(sys.argv[1:],"hy:z:c:s:p:",["help"])

	except getopt.GetoptError, err:

		print str(err)

		usage()

		sys.exit(1)

	pipeName="/tmp/subrPipe"

	centerY=0.0

	centerZ=0.0

	span=40.0

	points=13

	axis="Z"

	for o, a in opts:

		if o in ("-h", "--help"):

			usage()

			sys.exit()

		elif o in ("-y"):

			centerY=float(a)

		elif o in ("-z"):

			centerZ = float(a)

		elif o in ("-s"):

			span = float(a)

		elif o in ("-p"):

			points = int(a)

		elif o in ("-a"):

			axis=a

	axis.upper()

	if not((axis=="Z") or (axis=="Y")):

		print "currently supported axis are Y and Z"

		sys.exit(1)

	#get the link to the SRTmountcomponent

	simpleClient = PySimpleClient()

	AntennaCompName=""

	antType = "IDL:alma/Antenna/AntennaBoss:1.0"

	try:

		antennaComponent=simpleClient.getDefaultComponent(antType)

		antennaCompName=antennaComponent._get_name()

	except Exception , ex:

		newEx = ClientErrorsImpl.CouldntAccessComponentExImpl( exception=ex, create=1 )

		newEx.setComponentName(antType)

		newEx.log(simpleClient.getLogger(),ACSLog.ACS_LOG_ERROR)

		sys.exit(1)  

	print "Antenna boss retrieved"

	tpCompName=""

	tpInst = "BACKENDS/TotalPower"

	try:

		tpComponent=simpleClient.getComponent(tpInst)

		tpCompName=tpComponent._get_name()

	except Exception , ex:

		newEx = ClientErrorsImpl.CouldntAccessComponentExImpl( exception=ex, create=1 )

		newEx.setComponentName(tpCompName)

		newEx.log(simpleClient.getLogger(),ACSLog.ACS_LOG_ERROR)

		sys.exit(1)  

	print "Total power retrieved"

	print "Preparing pipe....."

	if not os.path.exists(pipeName):

		print "Creating pipe"

		os.mkfifo(pipeName,0777)

		print "Created"

	else:

		print "pipe already exists"

	print "Opening pipe......"

	pipeOut=open(pipeName,'w', 0)

	print "Pipe openened for writing......"

	if axis=="Y":

		bdf=-0.0036

	else:

		bdf=0.0

	axisPos=0.0

	startPoint=points/2

	millis=span/float(points)

	try:

		for i in range(-startPoint,startPoint):

			axisPos=center+i*millis

			try:

				if axis=="Y":

					pipeString="0.0,%lf,%lf,"%(X,axisPos,centerZ)

				else:

					pipeString="0.0,%lf,%lf,"%(X,centerY,axisPos)

				pipeOut.write(pipeString)

			except Exception, ex:

				print "Error in sending commant to scu"

				print ex

				sys.exit(1)

			try:

				antennaComponent.setOffsets(math.radians(0.0),math.radians(axisPos*bdf),Antenna.ANT_HORIZONTAL)

			except Excpetion,ex:

				print "Error  while sending offset to the telescope"

				print ex

				sys.exit(1)

			time.sleep(5)

			try:

				samples=tpComponent.getTpi()

			except:

				print "error reading total power measurement"

				print ex

				sys.exit(1)

			print "Lettura %lf,%lf"%(axisPos,samples[1])

	finally:

		if not (antennaCompName==""):

			simpleClient.releaseComponent(antennaCompName)

		if not (tpCompName==""):

			simpleClient.releaseComponent(tpCompName)			

		simpleClient.disconnect()

		pipeOut.close()

if __name__=="__main__":

   main()