Source code for PyMca5.PyMcaIO.OpusDPTMap

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# The PyMca X-Ray Fluorescence Toolkit
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__author__ = "V.A. Sole - ESRF Data Analysis"
__contact__ = "sole@esrf.fr"
__license__ = "MIT"
__copyright__ = "European Synchrotron Radiation Facility, Grenoble, France"
import numpy
from PyMca5 import DataObject
from PyMca5.PyMcaIO import specfilewrapper as specfile

SOURCE_TYPE = "SpecFileStack"


[docs]class OpusDPTMap(DataObject.DataObject): def __init__(self, filename): DataObject.DataObject.__init__(self) sf = specfile.Specfile(filename) scan = sf[1] data = scan.data() nMca, nchannels = data.shape nMca = nMca - 1 xValues = data[0, :] * 1 xValues.shape = -1 if 0: self.data = numpy.zeros((nMca, nchannels), numpy.float32) self.data[:, :] = data[1:, :] self.data.shape = 1, nMca, nchannels else: self.data = data[1:, :] self.data.shape = 1, nMca, nchannels data = None #perform a least squares adjustment to a line x = numpy.arange(nchannels).astype(numpy.float32) Sxy = numpy.dot(x, xValues.T) Sxx = numpy.dot(x, x.T) Sx = x.sum() Sy = xValues.sum() d = nchannels * Sxx - Sx * Sx zero = (Sxx * Sy - Sx * Sxy) / d gain = (nchannels * Sxy - Sx * Sy) / d #and fill the requested information to be identified as a stack self.info['SourceName'] = [filename] self.info["SourceType"] = "SpecFileStack" self.info["Size"] = 1, nMca, nchannels self.info["NumberOfFiles"] = 1 self.info["FileIndex"] = 0 self.info["McaCalib"] = [zero, gain, 0.0] self.info["Channel0"] = 0.0
[docs]def main(): import sys filename = None if len(sys.argv) > 1: filename = sys.argv[1] if filename is not None: OpusDPTMap(filename) else: print("Please supply input filename")
if __name__ == "__main__": main()