ESS_GUIESS_GUI_DocsESS_GUI_batch_fittingESS_GUI_bumps_abstractionESS_GUI_iss1116ESS_GUI_iss879ESS_GUI_iss959ESS_GUI_openclESS_GUI_orderingESS_GUI_sync_sascalccostrafo411magnetic_scattrelease-4.1.1release-4.1.2release-4.2.2release_4.0.1ticket-1009ticket-1094-headlessticket-1242-2d-resolutionticket-1243ticket-1249ticket885unittest-saveload
Last change
on this file since c9795f6 was
daa56d0,
checked in by Mathieu Doucet <doucetm@…>, 16 years ago
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Mostly completed DataLoader?. Reimplemented using REFL registry as base class. Added writing capability and dynamic loading of readers (need zip file support for future py2exe use). All tests pass.
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-
Property mode set to
100644
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File size:
2.0 KB
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1 | """ |
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2 | This software was developed by the University of Tennessee as part of the |
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3 | Distributed Data Analysis of Neutron Scattering Experiments (DANSE) |
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4 | project funded by the US National Science Foundation. |
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5 | |
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6 | See the license text in license.txt |
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7 | |
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8 | copyright 2008, University of Tennessee |
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9 | """ |
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10 | import numpy, os |
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11 | from DataLoader.data_info import Data1D |
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12 | |
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13 | |
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14 | class Reader: |
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15 | """ |
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16 | Test reader to check plugin functionality |
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17 | """ |
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18 | ## File type |
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19 | type = ["ASCII files (*.test)|*.test"] |
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20 | ## List of allowed extensions |
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21 | ext=['.test'] |
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22 | |
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23 | def read(self, path): |
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24 | """ |
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25 | Load data file |
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26 | |
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27 | @param path: file path |
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28 | @return: Data1D object, or None |
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29 | @raise RuntimeError: when the file can't be opened |
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30 | @raise ValueError: when the length of the data vectors are inconsistent |
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31 | """ |
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32 | if os.path.isfile(path): |
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33 | basename = os.path.basename(path) |
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34 | root, extension = os.path.splitext(basename) |
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35 | if extension.lower() in self.ext: |
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36 | try: |
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37 | input_f = open(path,'r') |
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38 | except : |
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39 | raise RuntimeError, "ascii_reader: cannot open %s" % path |
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40 | buff = input_f.read() |
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41 | lines = buff.split('\n') |
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42 | x = numpy.zeros(0) |
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43 | y = numpy.zeros(0) |
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44 | dy = numpy.zeros(0) |
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45 | output = Data1D(x, y, dy=dy) |
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46 | self.filename = output.filename = basename |
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47 | |
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48 | for line in lines: |
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49 | x = numpy.append(x, float(line)) |
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50 | |
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51 | output.x = x |
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52 | return output |
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53 | else: |
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54 | raise RuntimeError, "%s is not a file" % path |
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55 | return None |
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56 | |
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57 | if __name__ == "__main__": |
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58 | reader = Reader() |
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59 | output = reader.read("../test/test_data.test") |
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60 | print output.x |
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61 | |
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62 | |
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63 | |
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