/usr/lib/python2.7/dist-packages/PyMca/LuciaMap.py is in pymca 4.7.1+dfsg-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 | #!/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 file is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by the Free
# Software Foundation; either version 2 of the License, or (at your option)
# any later version.
#
# This file 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 Lesser General Public License for more
# details.
#
#############################################################################*/
from __future__ import with_statement
__author__ = "V.A. Sole - ESRF Data Analysis"
import os
import sys
import re
import numpy
from PyMca import DataObject
SOURCE_TYPE = "EdfFileStack"
class LuciaMap(DataObject.DataObject):
def __init__(self, filename, infofile=None):
DataObject.DataObject.__init__(self)
with open(filename, 'r') as f:
data = f.read()
data.replace("\r\n", "\n")
self.sourceName = [filename]
firstByte = data.index("\n\n")
header = data[0:firstByte]
#get rid of the date
data = data[firstByte:]
#leave only the '----' as separator
data.replace("\r", "")
data.replace("\n", "")
sep = '-'
while sep in data:
sep = sep + '-'
sep = sep[1:]
data = data.split(sep)
if len(data[0]) != len(data[-1]):
if len(data[0]) > 1:
del data[-1]
else:
del data[0]
#get the number of channels
exp = re.compile('(-?[0-9]+\.?[0-9]*)')
spectrum = [float(x) for x in exp.findall(data[0])]
self.nChannels = len(spectrum)
self.nSpectra = len(data)
self.nRows = self.nSpectra
#try to get the information
if infofile is None:
infofile = ""
split = filename.split('_')
if len(split) > 1:
for i in range(len(split) - 1):
if i == 0:
infofile = split[i]
else:
infofile += "_" + split[i]
infofile = infofile + "_Infos_" +\
split[-1].replace('.mca', '.dat')
if os.path.exists(infofile):
info = self._getInfo(infofile)
if ('vwidth' in info) and ('vstep' in info):
vwidth = info['vwidth']
vstep = info['vstep']
if abs(vstep) > 0:
self.nRows = int((vwidth / vstep) + 1)
#fill the header
self.header = header
#arrange as an EDF Stack
self.info = {}
self.__nFiles = 1
self.__nImagesPerFile = 1
#self.nRows = 41
self.nCols = self.nSpectra / self.nRows
self.data = numpy.zeros((self.nRows,
self.nCols,
self.nChannels),
numpy.float32)
n = 0
for i in range(self.nRows):
for j in range(self.nCols):
s = data[n]
spectrum = numpy.array([float(x) for x in exp.findall(s)])
self.data[i, j, :] = spectrum[:]
n = n + 1
shape = self.data.shape
for i in range(len(shape)):
key = 'Dim_%d' % (i + 1,)
self.info[key] = shape[i]
self.info["SourceType"] = SOURCE_TYPE
self.info["SourceName"] = self.sourceName
self.info["Size"] = self.__nFiles * self.__nImagesPerFile
self.info["NumberOfFiles"] = self.__nFiles * 1
self.info["FileIndex"] = 0
self.info["McaCalib"] = [0.0, 1.0, 0.0]
self.info["Channel0"] = 0.0
def _getInfo(self, filename):
'''
This dictionnary is to be internally normalized for the time
being no I0 nor dead time
'''
exp = re.compile('(-?[0-9]+\.?[0-9]*)')
#read the file in one go to minimize access to disk
with open(filename) as f:
data = f.readlines()
ddict = {}
for line in data:
if line.startswith("# Horizontal center position"):
ddict['center'] = [float(x) for x in exp.findall(line)][0]
elif line.startswith("# Horizontal width"):
ddict['hwidth'] = [float(x) for x in exp.findall(line)][0]
elif line.startswith("# Horizontal step"):
ddict['hstep'] = [float(x) for x in exp.findall(line)][0]
elif line.startswith("# Vertical width"):
ddict['vwidth'] = [float(x) for x in exp.findall(line)][0]
elif line.startswith("# Vertical step"):
ddict['vstep'] = [float(x) for x in exp.findall(line)][0]
return ddict
def main():
filename = None
if len(sys.argv) > 1:
filename = sys.argv[1]
elif os.path.exists("S10S_6_01.mca"):
filename = "S10S_6_01.mca"
if filename is not None:
w = LuciaMap(filename)
print(w.info)
else:
print("Please supply input filename")
if __name__ == "__main__":
main()
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