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 17a6843 was
ae3ce4e,
checked in by Mathieu Doucet <doucetm@…>, 17 years ago
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Moving sansmodels to trunk
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-
Property mode set to
100644
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File size:
858 bytes
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Rev | Line | |
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[ae3ce4e] | 1 | #if !defined(lorentzian_h) |
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| 2 | #define lorentzian_h |
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| 3 | |
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| 4 | /** Structure definition for Lorentzian parameters. |
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| 5 | * The Lorentzian is normalized to the 'scale' parameter. |
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| 6 | * |
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| 7 | * f(x)=scale * 1/pi 0.5gamma / [ (x-x_0)^2 + (0.5gamma)^2 ] |
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| 8 | * |
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| 9 | * [PYTHONCLASS] = Lorentzian |
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| 10 | */ |
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| 11 | typedef struct { |
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| 12 | /// Scale factor |
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| 13 | // [DEFAULT]=scale=1.0 |
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| 14 | double scale; |
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| 15 | /// Width |
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| 16 | // [DEFAULT]=gamma=1.0 |
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| 17 | double gamma; |
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| 18 | /// Center of the Lorentzian distribution |
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| 19 | // [DEFAULT]=center=0.0 |
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| 20 | double center; |
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| 21 | } LorentzianParameters; |
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| 22 | |
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| 23 | /// 1D lorentzian function |
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| 24 | double lorentzian_analytical_1D(LorentzianParameters *pars, double x); |
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| 25 | |
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| 26 | /// 2D lorentzian function |
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| 27 | double lorentzian_analytical_2D(LorentzianParameters *pars, double x, double phi); |
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| 28 | double lorentzian_analytical_2DXY(LorentzianParameters *pars, double x, double y); |
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| 29 | |
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| 30 | #endif |
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