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#!/usr/bin/env python
#/*##########################################################################
# Copyright (C) 2004-2012 European Synchrotron Radiation Facility
#
# This file is part of the PyMca X-ray Fluorescence Toolkit developed at
# the ESRF by the Software group.
#
# This toolkit is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the Free
# Software Foundation; either version 2 of the License, or (at your option)
# any later version.
#
# PyMca is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# PyMca; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# PyMca follows the dual licensing model of Riverbank's PyQt and cannot be
# used as a free plugin for a non-free program.
#
# Please contact the ESRF industrial unit (industry@esrf.fr) if this license
# is a problem for you.
#############################################################################*/
import sys
import os
import numpy
import types
#spx file format is based on XML
import xml.etree.ElementTree as ElementTree
from PyMca.PyMcaIO import SpecFileAbstractClass
def myFloat(x):
try:
return float(x)
except ValueError:
if ',' in x:
try:
return float(x.replace(',','.'))
except:
return float(x)
elif '.' in x:
try:
return float(x.replace('.',','))
except:
return float(x)
else:
raise
class SPXFileParser(SpecFileAbstractClass.SpecFileAbstractClass):
def __init__(self, filename):
SpecFileAbstractClass.SpecFileAbstractClass.__init__(self, filename)
if not os.path.exists(filename):
raise IOError("File %s does not exists" % filename)
f = ElementTree.parse(filename)
root = f.getroot()
info = {}
#I do not use find all, providing support for only one spectrum
infoKeys = ['HighVoltage', 'TubeCurrent',
'RealTime', 'LifeTime', 'DeadTime',
'ZeroPeakPosition', 'ZeroPeakFrequency', 'PulseDensity',
'Amplification', 'ShapingTime',
'Date','Time',
'ChannelCount','CalibAbs', 'CalibLin']
for key in infoKeys:
keyToSearch = './/ClassInstance/%s' % key
content = root.find(keyToSearch)
if content is not None:
info[key] = content.text
axes = root.find('.//ClassInstance/AxesParameter')
data = numpy.array([float(x) for x in root.find('.//Channels').text.split(',')])
data.shape = len(data), 1
scanheader = ['#S 1 ' + info.get('name', "Unknown name")]
i = 0
if axes is not None:
for axis in axes:
scanheader.append("#U%d %s %f %s" % (i,
axis.attrib['AxisName'],
myFloat(axis.attrib['AxisPosition']),
axis.attrib['AxisUnit']))
i += 1
for key in infoKeys:
scanheader.append("#U%d %s %s" % (i, key, info.get(key, "Unknown")))
i += 1
scanheader.append("#@CALIB %f %f 0" % (myFloat(info.get('CalibAbs', 0.0)),
myFloat(info.get('CalibLin', 1.0))))
self.scandata = [SpecFileAbstractClass.SpecFileAbstractScan(data,
scantype="MCA",
scanheader=scanheader)]
def test(filename):
SPXFileParser(filename)
if __name__ == "__main__":
test(sys.argv[1])
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