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 fa6a8d1 was
79492222,
checked in by krzywon, 10 years ago
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Changed the file and folder names to remove all SANS references.
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-
Property mode set to
100644
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File size:
2.2 KB
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1 | #!/usr/bin/env python |
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2 | """ |
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3 | Provide Line function (y= A + Bx) |
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4 | """ |
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5 | |
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6 | import math |
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7 | |
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8 | class LineModel(object): |
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9 | """ |
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10 | Class that evaluates a linear model. |
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11 | |
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12 | f(x) = A + Bx |
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13 | |
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14 | List of default parameters: |
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15 | A = 0.0 |
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16 | B = 0.0 |
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17 | """ |
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18 | |
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19 | def __init__(self): |
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20 | """ Initialization """ |
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21 | ## Name of the model |
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22 | self.name = "LineModel" |
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23 | |
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24 | ## Define parameters |
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25 | self.params = {} |
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26 | self.params['A'] = 1.0 |
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27 | self.params['B'] = 1.0 |
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28 | |
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29 | ## Parameter details [units, min, max] |
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30 | self.details = {} |
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31 | self.details['A'] = ['', None, None] |
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32 | self.details['B'] = ['', None, None] |
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33 | |
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34 | def getParam(self, name): |
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35 | """ |
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36 | """ |
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37 | return self.params[name.upper()] |
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38 | |
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39 | def setParam(self, name, value): |
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40 | """ |
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41 | """ |
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42 | self.params[name.upper()] = value |
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43 | |
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44 | def _line(self, x): |
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45 | """ |
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46 | Evaluate the function |
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47 | |
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48 | :param x: x-value |
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49 | |
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50 | :return: function value |
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51 | |
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52 | """ |
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53 | return self.params['A'] + (x * self.params['B']) |
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54 | |
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55 | def run(self, x = 0.0): |
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56 | """ |
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57 | Evaluate the model |
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58 | |
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59 | :param x: simple value |
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60 | |
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61 | :return: (Line value) |
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62 | """ |
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63 | if x.__class__.__name__ == 'list': |
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64 | return self._line(x[0] * math.cos(x[1])) * \ |
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65 | self._line(x[0] * math.sin(x[1])) |
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66 | elif x.__class__.__name__ == 'tuple': |
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67 | msg = "Tuples are not allowed as input to BaseComponent models" |
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68 | raise ValueError, msg |
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69 | else: |
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70 | return self._line(x) |
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71 | |
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72 | def runXY(self, x = 0.0): |
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73 | """ |
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74 | Evaluate the model |
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75 | |
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76 | :param x: simple value |
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77 | |
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78 | :return: Line value |
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79 | |
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80 | """ |
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81 | if x.__class__.__name__ == 'list': |
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82 | return self._line(x[0]) * self._line(x[1]) |
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83 | elif x.__class__.__name__ == 'tuple': |
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84 | msg = "Tuples are not allowed as input to BaseComponent models" |
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85 | raise ValueError, msg |
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86 | else: |
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87 | return self._line(x) |
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88 | |
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89 | |
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90 | if __name__ == "__main__": |
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91 | l = Line() |
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92 | |
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