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 aef2cf2 was
f99a6b1,
checked in by Jae Cho <jhjcho@…>, 16 years ago
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changed initial values
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Property mode set to
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File size:
1.1 KB
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Rev | Line | |
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[1c66bc5] | 1 | """ |
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| 2 | Test plug-in model |
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| 3 | """ |
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[fa38d83] | 4 | from sans.models.pluginmodel import Model1DPlugin |
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[948add7] | 5 | |
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[b30f001] | 6 | import math |
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| 7 | |
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[1c66bc5] | 8 | |
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| 9 | # Your model HAS to be called Model |
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| 10 | class Model(Model1DPlugin): |
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| 11 | """ Class that evaluates a cos(x) model. |
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| 12 | """ |
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| 13 | |
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| 14 | ## Name of the model |
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| 15 | name = "A+Bcos(2x)+Csin(2x)" |
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| 16 | |
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| 17 | def __init__(self): |
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| 18 | """ Initialization """ |
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[6df36b3] | 19 | Model1DPlugin.__init__(self, name= self.name) |
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[1c66bc5] | 20 | |
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| 21 | ## Parameters definition and defaults |
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| 22 | self.params = {} |
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[f99a6b1] | 23 | self.params['A'] = 1.0 |
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[1c66bc5] | 24 | self.params['B'] = 1.0 |
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[f99a6b1] | 25 | self.params['C'] = 10.0 |
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[1c66bc5] | 26 | |
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| 27 | ## Parameter details [units, min, max] |
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| 28 | self.details = {} |
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| 29 | self.details['A'] = ['', -1e16, 1e16] |
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| 30 | self.details['B'] = ['', -1e16, 1e16] |
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| 31 | self.details['C'] = ['', -1e16, 1e16] |
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[27976fd0] | 32 | self.description = "F(x)=A+Bcos(2x)+Csin(2x) " |
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[1c66bc5] | 33 | |
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| 34 | def function(self, x = 0.0): |
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| 35 | """ Evaluate the model |
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| 36 | @param x: input x |
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| 37 | @return: function value |
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| 38 | """ |
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| 39 | return self.params['A']+self.params['B']*math.cos(2.0*x)+self.params['C']*math.sin(2.0*x) |
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| 40 | |
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