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inputparser.py
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inputparser.py
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# input file parser
import sys
import numpy
import pylab
from ConfigParser import RawConfigParser
class inputparser(object):
'''PYXPCS and PYXSVS input file parser
'''
def __init__(self,inputFileName,**kwargs):
'''A utility to read and parse the old pyxpcs and the new
pyxsvs input files.
'''
self.config = RawConfigParser()
self.Parameters = {}
self.initParameters()
# Read input file
self.config.read(inputFileName)
self.parseInput(self.config)
self.setParameters(**kwargs) # Overwrite parameters (if any are given)
def initParameters(self):
r'''Acts on the :sefl.Parameters: dictionary. Sets initial parameter values.
'''
self.Parameters = {
'oldInputFormat' : False,
'saveDir' : '',
'dataDir' : '',
'flatFieldFile' : '',
'useFlatField' : True,
'maskFile' : '',
'defaultMaskFile' : '',
'q1' : 0.0,
'q2' : 0.0,
'qs' : 0.0,
'dq' : 0.0,
'outPrefix' : '',
'wavelength' : 0.0,
'cenx' : 0.0,
'ceny' : 0.0,
'pixSize' : 0.0,
'sdDist' : 0.0,
'dchi' : 5,
'rmin' : 25,
'rmax' : 100,
'mode' : 'XSVS',
'exposureList' : '',
'exposureParams' : {},
}
def parseInput(self,config):
r'''Function reading the input file and setting the
*self.Parameters* acordingly.
'''
# First, recognize if it's the old pyxpcs or the new pyxsvs format
if config.has_section('Main'):
self._parseNewInput(config)
elif config.has_section('Directories'):
self._parseOldInput(config)
def _parseNewInput(self,config):
r'''Function reading the input file and setting the
:self.Parameters: acordingly.
'''
self.Parameters['oldInputFormat'] = False
self.Parameters['saveDir'] = config.get('Main','save dir')
self.Parameters['dataDir'] = config.get('Main','data dir')
self.Parameters['flatFieldFile'] = config.get('Main','flat field')
try:
self.Parameters['maskFile'] = config.get('Main','mask')
except:
print 'Mask not set in the config file'
self.Parameters['defaultMaskFile'] = config.get('Main','default mask')
self.Parameters['q1'] = config.getfloat('Main','q1')
self.Parameters['q2'] = config.getfloat('Main','q2')
self.Parameters['qs'] = config.getfloat('Main','qs')
self.Parameters['dq'] = config.getfloat('Main','dq')
self.Parameters['outPrefix'] = config.get('Main','sample name')
self.Parameters['wavelength'] = config.getfloat('Main','wavelength')
self.Parameters['cenx'] = config.getfloat('Main','cenx')
self.Parameters['ceny'] = config.getfloat('Main','ceny')
self.Parameters['pixSize'] = config.getfloat('Main','pix')
self.Parameters['sdDist'] = config.getfloat('Main','sddist')
if config.has_option('Main','mode'):
self.Parameters['mode'] = config.get('Main','mode')
else:
self.Parameters['mode'] = 'XSVS' # Assuming default XSVS data mode
if self.Parameters['mode'] == 'XSVS':
secList = config.sections()
secList.remove('Main')
exposureList = numpy.sort(secList)
self.Parameters['exposureList'] = exposureList
for i in xrange(len(exposureList)):
exposure = exposureList[i]
currExpParams = {}
currExpParams['dataSuf'] = config.get(exposure,'data suffix')
currExpParams['dataPref'] = config.get(exposure,'data prefix')
currExpParams['n1'] = config.getint(exposure,'first data file')
currExpParams['n2'] = config.getint(exposure,'last data file')
currExpParams['expTime'] = config.getfloat(exposure,'exp time')
self.Parameters['exposureParams'][exposure] = currExpParams
elif self.Parameters['mode'] == 'XPCS':
expParams = {}
self.Parameters['exposureList'] = ['Exp_bins']
expParams['dataSuf'] = config.get('Exp_bins','data suffix')
expParams['dataPref'] = config.get('Exp_bins','data prefix')
expParams['n1'] = config.getint('Exp_bins','first data file')
expParams['n2'] = config.getint('Exp_bins','last data file')
expParams['expTime'] = config.getfloat('Exp_bins','exp time')
expParams['binStart'] = config.getfloat('Exp_bins','bin start')
expParams['binStop'] = config.getfloat('Exp_bins','bin stop')
expParams['binStep'] = config.getint('Exp_bins','bin step')
self.Parameters['exposureParams']['Exp_bins'] = expParams
# Generate different exposures by binning frames
#fileBins = range(expParams['binStart'],
# expParams['binStop'],expParams['binStep'])
fileBins = [int(x) for x in pylab.logspace(expParams['binStart'],
expParams['binStop'],
expParams['binStep'])]
exposureList = range(len(fileBins))
for ii in xrange(len(fileBins)):
exposureLabel = 'Exp_%d' % ii
exposureList[ii] = exposureLabel
currExpParams = {}
currExpParams['dataSuf'] = expParams['dataSuf']
currExpParams['dataPref'] = expParams['dataPref']
currExpParams['n1'] = expParams['n1']
currExpParams['n2'] = expParams['n2']
currExpParams['expTime'] = expParams['expTime'] * fileBins[ii]
currExpParams['img_to_bin'] = fileBins[ii]
self.Parameters['exposureParams'][exposureLabel] = currExpParams
self.Parameters['exposureList'] = exposureList
def _parseOldInput(self,config):
r'''Function reading the old pyxpcs input file and setting the
:self.Parameters: acordingly. The old input file will still need some new fields:
*default mask* and *flat_field*.
'''
self.Parameters['oldInputFormat'] = True
self.Parameters['saveDir'] = config.get('Directories','save dir')
self.Parameters['dataDir'] = config.get('Directories','data dir')
try:
self.Parameters['flatFieldFile'] = config.get('Directories','flat field')
except:
print 'Flat field not set in the config file'
try:
self.Parameters['maskFile'] = config.get('Directories','mask')
except:
print 'Mask not set in the config file'
self.Parameters['defaultMaskFile'] = config.get('Directories','default mask')
self.Parameters['q1'] = config.getfloat('Analysis','q1')
self.Parameters['q2'] = config.getfloat('Analysis','q2')
self.Parameters['qs'] = config.getfloat('Analysis','qs')
self.Parameters['dq'] = config.getfloat('Analysis','dq')
self.Parameters['outPrefix'] = config.get('Filenames','sample name')
self.Parameters['wavelength'] = config.getfloat('Beam','wavelength')
self.Parameters['cenx'] = config.getfloat('Beam','cenx')
self.Parameters['ceny'] = config.getfloat('Beam','ceny')
self.Parameters['pixSize'] = config.getfloat('Detector','pix')
self.Parameters['sdDist'] = config.getfloat('Detector','sddist')
expParams = {}
self.Parameters['exposureList'] = ['Exp_bins']
expParams['dataSuf'] = config.get('Filenames','data suffix')
expParams['dataPref'] = config.get('Filenames','data prefix')
expParams['n1'] = config.getint('Filenames','first data file')
expParams['n2'] = config.getint('Filenames','last data file')
self.Parameters['exposureParams']['Exp_bins'] = expParams
def setParameters(self,**kwargs):
r'''Sets the parameters given in keyword - value pairs to known settings
keywords. Unknown key - value pairs are skipped.
'''
for kw in kwargs:
if kw in self.Parameters.keys():
self.Parameters[kw] = kwargs[kw]
else:
pass # Ignoring unkwonw settings