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 8a6d4af was
5eb9154,
checked in by Jae Cho <jhjcho@…>, 15 years ago
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calculation of the effective radius are added
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-
Property mode set to
100644
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File size:
985 bytes
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Rev | Line | |
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[25579e8] | 1 | /** |
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| 2 | * Structure factor for a hardsphere |
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| 3 | * @author: Jae Hie Cho / UTK |
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| 4 | */ |
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| 5 | |
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| 6 | #include "StickyHS.h" |
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| 7 | #include "libStructureFactor.h" |
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| 8 | #include <math.h> |
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| 9 | |
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| 10 | |
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| 11 | /** |
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| 12 | * Function to evaluate 1D scattering function |
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| 13 | * @param pars: parameters of the StickyHS_struct |
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| 14 | * @param q: q-value |
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| 15 | * @return: function value |
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| 16 | */ |
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| 17 | double StickyHS_analytical_1D(StickyHSParameters *pars, double q) { |
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| 18 | double dp[4]; |
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[5eb9154] | 19 | |
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| 20 | dp[0] = pars->effect_radius; |
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| 21 | dp[1] = pars->volfraction; |
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[25579e8] | 22 | dp[2] = pars->perturb; |
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[5eb9154] | 23 | dp[3] = pars->stickiness; |
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[25579e8] | 24 | return StickyHS_Struct(dp, q); |
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| 25 | } |
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[5eb9154] | 26 | |
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[25579e8] | 27 | /** |
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| 28 | * Function to evaluate 2D scattering function |
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| 29 | * @param pars: parameters of the StickyHS_struct |
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| 30 | * @param q: q-value |
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| 31 | * @return: function value |
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| 32 | */ |
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| 33 | double StickyHS_analytical_2D(StickyHSParameters *pars, double q, double phi) { |
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| 34 | return StickyHS_analytical_1D(pars,q); |
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| 35 | } |
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| 36 | |
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| 37 | double StickyHS_analytical_2DXY(StickyHSParameters *pars, double qx, double qy){ |
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[5eb9154] | 38 | return StickyHS_analytical_1D(pars,sqrt(qx*qx+qy*qy)); |
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[25579e8] | 39 | } |
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